/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_test10-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 16:00:47,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 16:00:47,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 16:00:47,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-23 16:00:47,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 16:00:47,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 16:00:47,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 16:00:47,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 16:00:47,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 16:00:47,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 16:00:47,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 16:00:47,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 16:00:47,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 16:00:47,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 16:00:47,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 16:00:47,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 16:00:47,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 16:00:47,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 16:00:47,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 16:00:47,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 16:00:47,974 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 16:00:48,034 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 16:00:48,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 16:00:48,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 16:00:48,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 16:00:48,039 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 16:00:48,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 16:00:48,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 16:00:48,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 16:00:48,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 16:00:48,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 16:00:48,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 16:00:48,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 16:00:48,043 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 16:00:48,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 16:00:48,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 16:00:48,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 16:00:48,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 16:00:48,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 16:00:48,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 16:00:48,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 16:00:48,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 16:00:48,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 16:00:48,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 16:00:48,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 16:00:48,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 16:00:48,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 16:00:48,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 16:00:48,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 16:00:48,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 16:00:48,579 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 16:00:48,582 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 16:00:48,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-2.i [2020-12-23 16:00:48,683 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/21d25a7a0/441f41f560b14cf1ad26f213595b5ebc/FLAG85f16357c [2020-12-23 16:00:49,512 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 16:00:49,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-2.i [2020-12-23 16:00:49,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/21d25a7a0/441f41f560b14cf1ad26f213595b5ebc/FLAG85f16357c [2020-12-23 16:00:49,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/21d25a7a0/441f41f560b14cf1ad26f213595b5ebc [2020-12-23 16:00:49,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 16:00:49,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 16:00:49,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 16:00:49,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 16:00:49,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 16:00:49,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:00:49" (1/1) ... [2020-12-23 16:00:49,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39f70199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:49, skipping insertion in model container [2020-12-23 16:00:49,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:00:49" (1/1) ... [2020-12-23 16:00:49,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 16:00:49,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 16:00:50,361 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_test10-2.i[33022,33035] 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[~_ha_hashv~1,] 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: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[116],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[104],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[112],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[80],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[72],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[64],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem165,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem165,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem166,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem166,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem167,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem167,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem168,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem168,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem169,],base],StructAccessExpression[IdentifierExpression[#t~mem169,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem171,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem171,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~altusers~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[64],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[80],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[72],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem184,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem184,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem185,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem185,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_bkt~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[96],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[88],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem197,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem197,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_ha_head~1,],base],StructAccessExpression[IdentifierExpression[~_ha_head~1,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_new_buckets~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem209,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem209,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem219,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem219,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt_i~1,] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~1,] left hand side expression in assignment: lhs: VariableLHS[~_he_hh_nxt~1,] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt~1,] left hand side expression in assignment: lhs: VariableLHS[~_he_newbkt~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~1,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~_he_thh~1,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~1,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~_he_thh~1,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem245,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem245,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_newbkt~1,],base],StructAccessExpression[IdentifierExpression[~_he_newbkt~1,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem253,],base],StructAccessExpression[IdentifierExpression[#t~mem253,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem254,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem254,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem264,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem264,],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~2,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~2,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~2,] 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[~_hf_hashv~1,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~3,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~3,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_bkt~1,] 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[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_hashv~2,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~4,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~4,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_bkt~2,] 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[~_hf_hashv~3,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~5,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~5,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_bkt~3,] 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[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem449,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem449,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem454,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem454,],offset],IdentifierExpression[#t~mem456,]]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem460,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem460,],offset],IdentifierExpression[#t~mem462,]]]]] 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~mem474,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem474,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem477,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem477,],offset]]]] [2020-12-23 16:00:50,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:00:50,827 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 16:00:50,861 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_test10-2.i[33022,33035] 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~mem43,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem43,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem44,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem44,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem45,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem45,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem46,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem46,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem47,],base],StructAccessExpression[IdentifierExpression[#t~mem47,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem49,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem49,],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~mem62,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem62,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem63,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem63,],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~mem75,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem75,],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~mem89,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem89,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem99,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem99,],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~mem126,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem126,],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~mem134,],base],StructAccessExpression[IdentifierExpression[#t~mem134,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem136,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem136,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem146,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem146,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_hashv~1,] 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: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[116],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[104],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[112],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[80],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[72],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[64],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem175,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem175,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem176,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem176,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem177,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem177,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem178,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem178,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem179,],base],StructAccessExpression[IdentifierExpression[#t~mem179,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem181,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem181,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~altusers~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[64],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[80],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[72],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem194,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem194,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem195,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem195,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_bkt~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[96],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[88],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem207,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem207,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_ha_head~1,],base],StructAccessExpression[IdentifierExpression[~_ha_head~1,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~#_he_new_buckets~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem221,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem221,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem231,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem231,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt_i~1,] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~1,] left hand side expression in assignment: lhs: VariableLHS[~_he_hh_nxt~1,] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt~1,] left hand side expression in assignment: lhs: VariableLHS[~_he_newbkt~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~1,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~_he_thh~1,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~1,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~_he_thh~1,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem258,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem258,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_newbkt~1,],base],StructAccessExpression[IdentifierExpression[~_he_newbkt~1,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem266,],base],StructAccessExpression[IdentifierExpression[#t~mem266,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem268,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem268,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem278,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem278,],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~2,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~2,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~2,] 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[~_hf_hashv~1,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~3,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~3,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_bkt~1,] 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: address: IdentifierExpression[~#i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_hashv~2,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~4,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~4,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_bkt~2,] 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[~_hf_hashv~3,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~5,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~5,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_bkt~3,] 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[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem467,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem467,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem472,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem472,],offset],IdentifierExpression[#t~mem474,]]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem478,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem478,],offset],IdentifierExpression[#t~mem480,]]]]] 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~mem492,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem492,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem495,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem495,],offset]]]] [2020-12-23 16:00:51,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:00:51,151 INFO L208 MainTranslator]: Completed translation [2020-12-23 16:00:51,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:51 WrapperNode [2020-12-23 16:00:51,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 16:00:51,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 16:00:51,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 16:00:51,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 16:00:51,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:51" (1/1) ... [2020-12-23 16:00:51,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:51" (1/1) ... [2020-12-23 16:00:51,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 16:00:51,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 16:00:51,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 16:00:51,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 16:00:51,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:51" (1/1) ... [2020-12-23 16:00:51,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:51" (1/1) ... [2020-12-23 16:00:51,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:51" (1/1) ... [2020-12-23 16:00:51,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:51" (1/1) ... [2020-12-23 16:00:51,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:51" (1/1) ... [2020-12-23 16:00:51,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:51" (1/1) ... [2020-12-23 16:00:51,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:51" (1/1) ... [2020-12-23 16:00:51,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 16:00:51,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 16:00:51,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 16:00:51,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 16:00:51,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 16:00:51,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 16:00:51,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 16:00:51,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 16:00:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 16:00:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 16:00:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-12-23 16:00:51,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 16:00:51,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 16:00:51,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 16:00:51,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 16:00:51,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 16:00:56,246 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 16:00:56,247 INFO L299 CfgBuilder]: Removed 216 assume(true) statements. [2020-12-23 16:00:56,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:00:56 BoogieIcfgContainer [2020-12-23 16:00:56,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 16:00:56,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 16:00:56,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 16:00:56,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 16:00:56,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:00:49" (1/3) ... [2020-12-23 16:00:56,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e79d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:00:56, skipping insertion in model container [2020-12-23 16:00:56,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:51" (2/3) ... [2020-12-23 16:00:56,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e79d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:00:56, skipping insertion in model container [2020-12-23 16:00:56,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:00:56" (3/3) ... [2020-12-23 16:00:56,263 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test10-2.i [2020-12-23 16:00:56,275 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 16:00:56,282 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-12-23 16:00:56,303 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-12-23 16:00:56,359 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 16:00:56,359 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 16:00:56,359 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 16:00:56,359 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 16:00:56,360 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 16:00:56,360 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 16:00:56,360 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 16:00:56,360 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 16:00:56,404 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states. [2020-12-23 16:00:56,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 16:00:56,411 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:00:56,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:00:56,413 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:00:56,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:00:56,421 INFO L82 PathProgramCache]: Analyzing trace with hash -128377380, now seen corresponding path program 1 times [2020-12-23 16:00:56,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:00:56,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178863091] [2020-12-23 16:00:56,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:00:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:00:56,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:00:56,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178863091] [2020-12-23 16:00:56,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:00:56,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 16:00:56,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987004278] [2020-12-23 16:00:56,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 16:00:56,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:00:56,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 16:00:56,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 16:00:56,655 INFO L87 Difference]: Start difference. First operand 499 states. Second operand 2 states. [2020-12-23 16:00:56,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:00:56,733 INFO L93 Difference]: Finished difference Result 996 states and 1678 transitions. [2020-12-23 16:00:56,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 16:00:56,735 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-23 16:00:56,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:00:56,756 INFO L225 Difference]: With dead ends: 996 [2020-12-23 16:00:56,756 INFO L226 Difference]: Without dead ends: 465 [2020-12-23 16:00:56,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 16:00:56,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-12-23 16:00:56,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 465. [2020-12-23 16:00:56,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2020-12-23 16:00:56,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 608 transitions. [2020-12-23 16:00:56,870 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 608 transitions. Word has length 9 [2020-12-23 16:00:56,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:00:56,870 INFO L481 AbstractCegarLoop]: Abstraction has 465 states and 608 transitions. [2020-12-23 16:00:56,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 16:00:56,871 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 608 transitions. [2020-12-23 16:00:56,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-23 16:00:56,873 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:00:56,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:00:56,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 16:00:56,875 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:00:56,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:00:56,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1568739198, now seen corresponding path program 1 times [2020-12-23 16:00:56,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:00:56,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976469865] [2020-12-23 16:00:56,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:00:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:00:56,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:00:56,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976469865] [2020-12-23 16:00:56,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:00:56,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:00:56,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063531139] [2020-12-23 16:00:56,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:00:56,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:00:56,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:00:56,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:00:56,993 INFO L87 Difference]: Start difference. First operand 465 states and 608 transitions. Second operand 4 states. [2020-12-23 16:00:57,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:00:57,772 INFO L93 Difference]: Finished difference Result 831 states and 1087 transitions. [2020-12-23 16:00:57,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:00:57,773 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-12-23 16:00:57,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:00:57,780 INFO L225 Difference]: With dead ends: 831 [2020-12-23 16:00:57,781 INFO L226 Difference]: Without dead ends: 540 [2020-12-23 16:00:57,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:00:57,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-12-23 16:00:57,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 467. [2020-12-23 16:00:57,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-12-23 16:00:57,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 610 transitions. [2020-12-23 16:00:57,818 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 610 transitions. Word has length 44 [2020-12-23 16:00:57,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:00:57,818 INFO L481 AbstractCegarLoop]: Abstraction has 467 states and 610 transitions. [2020-12-23 16:00:57,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:00:57,819 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 610 transitions. [2020-12-23 16:00:57,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-23 16:00:57,832 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:00:57,832 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:00:57,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 16:00:57,833 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:00:57,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:00:57,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1325558428, now seen corresponding path program 1 times [2020-12-23 16:00:57,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:00:57,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746534434] [2020-12-23 16:00:57,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:00:57,875 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:00:57,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [968016486] [2020-12-23 16:00:57,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:00:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:00:58,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:00:58,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:00:58,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:00:58,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746534434] [2020-12-23 16:00:58,367 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:00:58,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968016486] [2020-12-23 16:00:58,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:00:58,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:00:58,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577088610] [2020-12-23 16:00:58,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:00:58,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:00:58,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:00:58,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:00:58,377 INFO L87 Difference]: Start difference. First operand 467 states and 610 transitions. Second operand 3 states. [2020-12-23 16:00:58,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:00:58,498 INFO L93 Difference]: Finished difference Result 951 states and 1247 transitions. [2020-12-23 16:00:58,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:00:58,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-12-23 16:00:58,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:00:58,502 INFO L225 Difference]: With dead ends: 951 [2020-12-23 16:00:58,502 INFO L226 Difference]: Without dead ends: 488 [2020-12-23 16:00:58,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:00:58,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-12-23 16:00:58,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 487. [2020-12-23 16:00:58,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2020-12-23 16:00:58,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 630 transitions. [2020-12-23 16:00:58,518 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 630 transitions. Word has length 97 [2020-12-23 16:00:58,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:00:58,518 INFO L481 AbstractCegarLoop]: Abstraction has 487 states and 630 transitions. [2020-12-23 16:00:58,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:00:58,519 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 630 transitions. [2020-12-23 16:00:58,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-23 16:00:58,521 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:00:58,521 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:00:58,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-23 16:00:58,725 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:00:58,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:00:58,726 INFO L82 PathProgramCache]: Analyzing trace with hash 948433376, now seen corresponding path program 1 times [2020-12-23 16:00:58,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:00:58,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094891321] [2020-12-23 16:00:58,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:00:58,756 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:00:58,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2014902781] [2020-12-23 16:00:58,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:00:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:00:59,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:00:59,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:00:59,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 16:00:59,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094891321] [2020-12-23 16:00:59,403 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:00:59,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014902781] [2020-12-23 16:00:59,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:00:59,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:00:59,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640269839] [2020-12-23 16:00:59,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:00:59,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:00:59,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:00:59,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:00:59,408 INFO L87 Difference]: Start difference. First operand 487 states and 630 transitions. Second operand 3 states. [2020-12-23 16:00:59,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:00:59,513 INFO L93 Difference]: Finished difference Result 787 states and 1024 transitions. [2020-12-23 16:00:59,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:00:59,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-12-23 16:00:59,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:00:59,518 INFO L225 Difference]: With dead ends: 787 [2020-12-23 16:00:59,518 INFO L226 Difference]: Without dead ends: 508 [2020-12-23 16:00:59,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:00:59,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-12-23 16:00:59,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 507. [2020-12-23 16:00:59,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-12-23 16:00:59,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 650 transitions. [2020-12-23 16:00:59,539 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 650 transitions. Word has length 97 [2020-12-23 16:00:59,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:00:59,542 INFO L481 AbstractCegarLoop]: Abstraction has 507 states and 650 transitions. [2020-12-23 16:00:59,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:00:59,542 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 650 transitions. [2020-12-23 16:00:59,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-23 16:00:59,544 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:00:59,545 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:00:59,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:00:59,759 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:00:59,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:00:59,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1352389214, now seen corresponding path program 1 times [2020-12-23 16:00:59,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:00:59,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339888818] [2020-12-23 16:00:59,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:00:59,815 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:00:59,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1882662866] [2020-12-23 16:00:59,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:01:00,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:01:00,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:00,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:01:00,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339888818] [2020-12-23 16:01:00,357 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:00,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882662866] [2020-12-23 16:01:00,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:01:00,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:01:00,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357875830] [2020-12-23 16:01:00,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:01:00,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:00,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:01:00,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:01:00,360 INFO L87 Difference]: Start difference. First operand 507 states and 650 transitions. Second operand 4 states. [2020-12-23 16:01:00,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:00,477 INFO L93 Difference]: Finished difference Result 1086 states and 1400 transitions. [2020-12-23 16:01:00,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:01:00,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 97 [2020-12-23 16:01:00,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:00,481 INFO L225 Difference]: With dead ends: 1086 [2020-12-23 16:01:00,482 INFO L226 Difference]: Without dead ends: 583 [2020-12-23 16:01:00,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:01:00,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2020-12-23 16:01:00,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 493. [2020-12-23 16:01:00,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2020-12-23 16:01:00,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 629 transitions. [2020-12-23 16:01:00,499 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 629 transitions. Word has length 97 [2020-12-23 16:01:00,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:00,499 INFO L481 AbstractCegarLoop]: Abstraction has 493 states and 629 transitions. [2020-12-23 16:01:00,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:01:00,500 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 629 transitions. [2020-12-23 16:01:00,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-23 16:01:00,501 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:00,501 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:00,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:00,715 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:00,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:00,717 INFO L82 PathProgramCache]: Analyzing trace with hash 881478960, now seen corresponding path program 1 times [2020-12-23 16:01:00,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:00,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449144888] [2020-12-23 16:01:00,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:00,743 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:00,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2095410067] [2020-12-23 16:01:00,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:01:01,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:01:01,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:01,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 16:01:01,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449144888] [2020-12-23 16:01:01,182 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:01,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095410067] [2020-12-23 16:01:01,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:01:01,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:01:01,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862773775] [2020-12-23 16:01:01,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:01:01,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:01,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:01:01,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:01:01,187 INFO L87 Difference]: Start difference. First operand 493 states and 629 transitions. Second operand 4 states. [2020-12-23 16:01:01,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:01,336 INFO L93 Difference]: Finished difference Result 761 states and 972 transitions. [2020-12-23 16:01:01,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:01:01,337 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 97 [2020-12-23 16:01:01,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:01,342 INFO L225 Difference]: With dead ends: 761 [2020-12-23 16:01:01,343 INFO L226 Difference]: Without dead ends: 480 [2020-12-23 16:01:01,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:01:01,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-12-23 16:01:01,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 479. [2020-12-23 16:01:01,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-12-23 16:01:01,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 608 transitions. [2020-12-23 16:01:01,361 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 608 transitions. Word has length 97 [2020-12-23 16:01:01,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:01,361 INFO L481 AbstractCegarLoop]: Abstraction has 479 states and 608 transitions. [2020-12-23 16:01:01,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:01:01,362 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 608 transitions. [2020-12-23 16:01:01,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-23 16:01:01,363 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:01,363 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:01,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:01,579 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:01,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:01,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1427704734, now seen corresponding path program 1 times [2020-12-23 16:01:01,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:01,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121583238] [2020-12-23 16:01:01,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:01,608 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:01,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2012539836] [2020-12-23 16:01:01,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:01:01,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 16:01:01,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:02,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:01:02,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121583238] [2020-12-23 16:01:02,113 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:02,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012539836] [2020-12-23 16:01:02,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:01:02,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:01:02,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064273001] [2020-12-23 16:01:02,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:01:02,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:02,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:01:02,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:01:02,116 INFO L87 Difference]: Start difference. First operand 479 states and 608 transitions. Second operand 3 states. [2020-12-23 16:01:02,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:02,217 INFO L93 Difference]: Finished difference Result 1231 states and 1562 transitions. [2020-12-23 16:01:02,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:01:02,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-12-23 16:01:02,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:02,223 INFO L225 Difference]: With dead ends: 1231 [2020-12-23 16:01:02,223 INFO L226 Difference]: Without dead ends: 756 [2020-12-23 16:01:02,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:01:02,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-12-23 16:01:02,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 721. [2020-12-23 16:01:02,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 721 states. [2020-12-23 16:01:02,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 930 transitions. [2020-12-23 16:01:02,253 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 930 transitions. Word has length 97 [2020-12-23 16:01:02,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:02,253 INFO L481 AbstractCegarLoop]: Abstraction has 721 states and 930 transitions. [2020-12-23 16:01:02,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:01:02,254 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 930 transitions. [2020-12-23 16:01:02,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-12-23 16:01:02,255 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:02,255 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:02,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-23 16:01:02,467 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:02,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:02,468 INFO L82 PathProgramCache]: Analyzing trace with hash -371205377, now seen corresponding path program 1 times [2020-12-23 16:01:02,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:02,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460693443] [2020-12-23 16:01:02,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:02,493 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:02,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1227677720] [2020-12-23 16:01:02,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:01:02,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:01:02,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:03,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:01:03,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460693443] [2020-12-23 16:01:03,022 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:03,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227677720] [2020-12-23 16:01:03,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:01:03,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:01:03,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308830668] [2020-12-23 16:01:03,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:01:03,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:03,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:01:03,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:01:03,029 INFO L87 Difference]: Start difference. First operand 721 states and 930 transitions. Second operand 3 states. [2020-12-23 16:01:03,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:03,097 INFO L93 Difference]: Finished difference Result 1400 states and 1809 transitions. [2020-12-23 16:01:03,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:01:03,098 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-12-23 16:01:03,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:03,104 INFO L225 Difference]: With dead ends: 1400 [2020-12-23 16:01:03,104 INFO L226 Difference]: Without dead ends: 727 [2020-12-23 16:01:03,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:01:03,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2020-12-23 16:01:03,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 727. [2020-12-23 16:01:03,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2020-12-23 16:01:03,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 936 transitions. [2020-12-23 16:01:03,133 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 936 transitions. Word has length 104 [2020-12-23 16:01:03,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:03,135 INFO L481 AbstractCegarLoop]: Abstraction has 727 states and 936 transitions. [2020-12-23 16:01:03,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:01:03,135 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 936 transitions. [2020-12-23 16:01:03,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-23 16:01:03,138 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:03,138 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:03,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:03,353 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:03,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:03,355 INFO L82 PathProgramCache]: Analyzing trace with hash -2085853600, now seen corresponding path program 1 times [2020-12-23 16:01:03,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:03,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558674638] [2020-12-23 16:01:03,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:03,381 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:03,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [165813463] [2020-12-23 16:01:03,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:01:03,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 16:01:03,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:03,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 16:01:03,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558674638] [2020-12-23 16:01:03,846 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:03,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165813463] [2020-12-23 16:01:03,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:01:03,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-12-23 16:01:03,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308565372] [2020-12-23 16:01:03,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:01:03,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:03,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:01:03,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:01:03,849 INFO L87 Difference]: Start difference. First operand 727 states and 936 transitions. Second operand 4 states. [2020-12-23 16:01:03,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:03,941 INFO L93 Difference]: Finished difference Result 1411 states and 1820 transitions. [2020-12-23 16:01:03,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:01:03,942 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 106 [2020-12-23 16:01:03,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:03,946 INFO L225 Difference]: With dead ends: 1411 [2020-12-23 16:01:03,946 INFO L226 Difference]: Without dead ends: 733 [2020-12-23 16:01:03,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:01:03,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2020-12-23 16:01:03,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2020-12-23 16:01:03,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-12-23 16:01:03,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 942 transitions. [2020-12-23 16:01:03,973 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 942 transitions. Word has length 106 [2020-12-23 16:01:03,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:03,973 INFO L481 AbstractCegarLoop]: Abstraction has 733 states and 942 transitions. [2020-12-23 16:01:03,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:01:03,973 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 942 transitions. [2020-12-23 16:01:03,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-23 16:01:03,975 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:03,976 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, 1] [2020-12-23 16:01:04,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:04,191 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:04,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:04,192 INFO L82 PathProgramCache]: Analyzing trace with hash -462744993, now seen corresponding path program 2 times [2020-12-23 16:01:04,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:04,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681913372] [2020-12-23 16:01:04,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:04,218 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:04,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1059409493] [2020-12-23 16:01:04,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:05,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 16:01:05,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 16:01:05,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 16:01:05,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:05,797 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-23 16:01:05,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681913372] [2020-12-23 16:01:05,798 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:05,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059409493] [2020-12-23 16:01:05,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:01:05,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-12-23 16:01:05,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998233494] [2020-12-23 16:01:05,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 16:01:05,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:05,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 16:01:05,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:01:05,800 INFO L87 Difference]: Start difference. First operand 733 states and 942 transitions. Second operand 5 states. [2020-12-23 16:01:05,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:05,913 INFO L93 Difference]: Finished difference Result 1422 states and 1831 transitions. [2020-12-23 16:01:05,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 16:01:05,914 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2020-12-23 16:01:05,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:05,918 INFO L225 Difference]: With dead ends: 1422 [2020-12-23 16:01:05,918 INFO L226 Difference]: Without dead ends: 739 [2020-12-23 16:01:05,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:01:05,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2020-12-23 16:01:05,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2020-12-23 16:01:05,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-12-23 16:01:05,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 948 transitions. [2020-12-23 16:01:05,943 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 948 transitions. Word has length 108 [2020-12-23 16:01:05,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:05,943 INFO L481 AbstractCegarLoop]: Abstraction has 739 states and 948 transitions. [2020-12-23 16:01:05,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 16:01:05,944 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 948 transitions. [2020-12-23 16:01:05,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-23 16:01:05,945 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:05,946 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:06,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-23 16:01:06,158 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:06,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:06,160 INFO L82 PathProgramCache]: Analyzing trace with hash 87417216, now seen corresponding path program 3 times [2020-12-23 16:01:06,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:06,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113286604] [2020-12-23 16:01:06,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:06,209 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:06,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2134466412] [2020-12-23 16:01:06,211 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:07,792 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 16:01:07,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 16:01:07,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 16:01:07,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:07,850 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-12-23 16:01:07,851 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 16:01:07,858 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 16:01:07,862 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 16:01:07,863 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 16:01:07,868 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 16:01:07,869 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 16:01:07,869 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:18, output treesize:13 [2020-12-23 16:01:07,895 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 16:01:07,895 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-23 16:01:07,899 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 16:01:07,903 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 16:01:07,908 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 16:01:07,909 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 16:01:07,909 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:12 [2020-12-23 16:01:07,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 16:01:07,946 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-23 16:01:07,947 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 16:01:07,952 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 16:01:07,954 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 16:01:07,954 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:3 [2020-12-23 16:01:08,025 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-23 16:01:08,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113286604] [2020-12-23 16:01:08,026 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:08,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134466412] [2020-12-23 16:01:08,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:01:08,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 16:01:08,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370520275] [2020-12-23 16:01:08,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 16:01:08,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:08,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 16:01:08,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:01:08,028 INFO L87 Difference]: Start difference. First operand 739 states and 948 transitions. Second operand 5 states. [2020-12-23 16:01:09,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:09,285 INFO L93 Difference]: Finished difference Result 1382 states and 1772 transitions. [2020-12-23 16:01:09,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 16:01:09,285 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-12-23 16:01:09,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:09,289 INFO L225 Difference]: With dead ends: 1382 [2020-12-23 16:01:09,290 INFO L226 Difference]: Without dead ends: 739 [2020-12-23 16:01:09,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 16:01:09,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2020-12-23 16:01:09,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2020-12-23 16:01:09,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-12-23 16:01:09,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 947 transitions. [2020-12-23 16:01:09,317 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 947 transitions. Word has length 110 [2020-12-23 16:01:09,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:09,318 INFO L481 AbstractCegarLoop]: Abstraction has 739 states and 947 transitions. [2020-12-23 16:01:09,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 16:01:09,318 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 947 transitions. [2020-12-23 16:01:09,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 16:01:09,320 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:09,320 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:09,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:09,532 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:09,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:09,533 INFO L82 PathProgramCache]: Analyzing trace with hash -2117457625, now seen corresponding path program 1 times [2020-12-23 16:01:09,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:09,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078321112] [2020-12-23 16:01:09,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:09,556 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:09,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [965935661] [2020-12-23 16:01:09,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:01:09,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:01:09,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:10,113 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-23 16:01:10,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078321112] [2020-12-23 16:01:10,114 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:10,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965935661] [2020-12-23 16:01:10,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:01:10,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:01:10,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899658464] [2020-12-23 16:01:10,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:01:10,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:10,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:01:10,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:01:10,116 INFO L87 Difference]: Start difference. First operand 739 states and 947 transitions. Second operand 3 states. [2020-12-23 16:01:10,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:10,251 INFO L93 Difference]: Finished difference Result 1502 states and 1935 transitions. [2020-12-23 16:01:10,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:01:10,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-12-23 16:01:10,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:10,260 INFO L225 Difference]: With dead ends: 1502 [2020-12-23 16:01:10,260 INFO L226 Difference]: Without dead ends: 781 [2020-12-23 16:01:10,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:01:10,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2020-12-23 16:01:10,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 779. [2020-12-23 16:01:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 779 states. [2020-12-23 16:01:10,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 987 transitions. [2020-12-23 16:01:10,294 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 987 transitions. Word has length 157 [2020-12-23 16:01:10,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:10,295 INFO L481 AbstractCegarLoop]: Abstraction has 779 states and 987 transitions. [2020-12-23 16:01:10,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:01:10,295 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 987 transitions. [2020-12-23 16:01:10,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 16:01:10,297 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:10,298 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:10,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:10,513 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:10,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:10,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1572585051, now seen corresponding path program 1 times [2020-12-23 16:01:10,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:10,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692088255] [2020-12-23 16:01:10,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:10,534 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:10,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1640178370] [2020-12-23 16:01:10,535 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:01:11,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:01:11,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:11,190 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-23 16:01:11,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692088255] [2020-12-23 16:01:11,190 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:11,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640178370] [2020-12-23 16:01:11,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:01:11,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:01:11,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212700393] [2020-12-23 16:01:11,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:01:11,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:11,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:01:11,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:01:11,193 INFO L87 Difference]: Start difference. First operand 779 states and 987 transitions. Second operand 4 states. [2020-12-23 16:01:11,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:11,316 INFO L93 Difference]: Finished difference Result 1496 states and 1900 transitions. [2020-12-23 16:01:11,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:01:11,318 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 16:01:11,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:11,323 INFO L225 Difference]: With dead ends: 1496 [2020-12-23 16:01:11,323 INFO L226 Difference]: Without dead ends: 753 [2020-12-23 16:01:11,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:01:11,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2020-12-23 16:01:11,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 751. [2020-12-23 16:01:11,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-12-23 16:01:11,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 945 transitions. [2020-12-23 16:01:11,358 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 945 transitions. Word has length 157 [2020-12-23 16:01:11,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:11,358 INFO L481 AbstractCegarLoop]: Abstraction has 751 states and 945 transitions. [2020-12-23 16:01:11,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:01:11,358 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 945 transitions. [2020-12-23 16:01:11,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 16:01:11,361 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:11,361 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:11,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-23 16:01:11,575 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:11,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:11,575 INFO L82 PathProgramCache]: Analyzing trace with hash 94293941, now seen corresponding path program 1 times [2020-12-23 16:01:11,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:11,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484033231] [2020-12-23 16:01:11,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:11,605 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:11,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979533247] [2020-12-23 16:01:11,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:01:12,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 16:01:12,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:12,186 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-23 16:01:12,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484033231] [2020-12-23 16:01:12,187 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:12,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979533247] [2020-12-23 16:01:12,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:01:12,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 16:01:12,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939668481] [2020-12-23 16:01:12,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 16:01:12,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:12,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 16:01:12,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:01:12,189 INFO L87 Difference]: Start difference. First operand 751 states and 945 transitions. Second operand 5 states. [2020-12-23 16:01:12,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:12,391 INFO L93 Difference]: Finished difference Result 2209 states and 2786 transitions. [2020-12-23 16:01:12,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 16:01:12,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-12-23 16:01:12,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:12,401 INFO L225 Difference]: With dead ends: 2209 [2020-12-23 16:01:12,402 INFO L226 Difference]: Without dead ends: 1496 [2020-12-23 16:01:12,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:01:12,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2020-12-23 16:01:12,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 797. [2020-12-23 16:01:12,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-12-23 16:01:12,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 995 transitions. [2020-12-23 16:01:12,445 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 995 transitions. Word has length 157 [2020-12-23 16:01:12,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:12,445 INFO L481 AbstractCegarLoop]: Abstraction has 797 states and 995 transitions. [2020-12-23 16:01:12,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 16:01:12,446 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 995 transitions. [2020-12-23 16:01:12,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 16:01:12,448 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:12,449 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:12,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-23 16:01:12,664 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:12,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:12,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1994860229, now seen corresponding path program 1 times [2020-12-23 16:01:12,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:12,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346793532] [2020-12-23 16:01:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:12,686 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:12,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1560451791] [2020-12-23 16:01:12,687 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:01:13,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 16:01:13,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:13,294 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-23 16:01:13,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346793532] [2020-12-23 16:01:13,294 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:13,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560451791] [2020-12-23 16:01:13,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:01:13,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:01:13,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985491975] [2020-12-23 16:01:13,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:01:13,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:13,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:01:13,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:01:13,297 INFO L87 Difference]: Start difference. First operand 797 states and 995 transitions. Second operand 4 states. [2020-12-23 16:01:13,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:13,376 INFO L93 Difference]: Finished difference Result 1503 states and 1887 transitions. [2020-12-23 16:01:13,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:01:13,376 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 16:01:13,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:13,381 INFO L225 Difference]: With dead ends: 1503 [2020-12-23 16:01:13,381 INFO L226 Difference]: Without dead ends: 733 [2020-12-23 16:01:13,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:01:13,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2020-12-23 16:01:13,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2020-12-23 16:01:13,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-12-23 16:01:13,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 917 transitions. [2020-12-23 16:01:13,412 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 917 transitions. Word has length 157 [2020-12-23 16:01:13,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:13,413 INFO L481 AbstractCegarLoop]: Abstraction has 733 states and 917 transitions. [2020-12-23 16:01:13,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:01:13,413 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 917 transitions. [2020-12-23 16:01:13,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 16:01:13,415 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:13,416 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:13,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-23 16:01:13,631 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:13,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:13,632 INFO L82 PathProgramCache]: Analyzing trace with hash 639166515, now seen corresponding path program 1 times [2020-12-23 16:01:13,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:13,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437391339] [2020-12-23 16:01:13,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:13,656 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:13,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1998885774] [2020-12-23 16:01:13,656 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 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 [2020-12-23 16:01:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:01:14,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 16:01:14,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:14,287 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 16:01:14,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437391339] [2020-12-23 16:01:14,288 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:14,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998885774] [2020-12-23 16:01:14,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:01:14,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-23 16:01:14,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423149021] [2020-12-23 16:01:14,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 16:01:14,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:14,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 16:01:14,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 16:01:14,290 INFO L87 Difference]: Start difference. First operand 733 states and 917 transitions. Second operand 6 states. [2020-12-23 16:01:14,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:14,401 INFO L93 Difference]: Finished difference Result 1424 states and 1796 transitions. [2020-12-23 16:01:14,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 16:01:14,402 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-12-23 16:01:14,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:14,406 INFO L225 Difference]: With dead ends: 1424 [2020-12-23 16:01:14,407 INFO L226 Difference]: Without dead ends: 739 [2020-12-23 16:01:14,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 16:01:14,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2020-12-23 16:01:14,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2020-12-23 16:01:14,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-12-23 16:01:14,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 923 transitions. [2020-12-23 16:01:14,439 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 923 transitions. Word has length 157 [2020-12-23 16:01:14,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:14,439 INFO L481 AbstractCegarLoop]: Abstraction has 739 states and 923 transitions. [2020-12-23 16:01:14,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 16:01:14,440 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 923 transitions. [2020-12-23 16:01:14,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-12-23 16:01:14,442 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:14,442 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:14,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:14,656 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:14,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:14,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1050888114, now seen corresponding path program 2 times [2020-12-23 16:01:14,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:14,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635621492] [2020-12-23 16:01:14,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:14,709 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:14,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2101517550] [2020-12-23 16:01:14,710 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:23,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 16:01:23,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 16:01:23,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 16:01:23,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:23,979 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 16:01:23,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635621492] [2020-12-23 16:01:23,980 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:23,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101517550] [2020-12-23 16:01:23,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:01:23,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-23 16:01:23,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183987620] [2020-12-23 16:01:23,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 16:01:23,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:23,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 16:01:23,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 16:01:23,982 INFO L87 Difference]: Start difference. First operand 739 states and 923 transitions. Second operand 7 states. [2020-12-23 16:01:24,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:24,110 INFO L93 Difference]: Finished difference Result 1435 states and 1807 transitions. [2020-12-23 16:01:24,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 16:01:24,111 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 159 [2020-12-23 16:01:24,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:24,116 INFO L225 Difference]: With dead ends: 1435 [2020-12-23 16:01:24,116 INFO L226 Difference]: Without dead ends: 745 [2020-12-23 16:01:24,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 16:01:24,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2020-12-23 16:01:24,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 745. [2020-12-23 16:01:24,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-12-23 16:01:24,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 929 transitions. [2020-12-23 16:01:24,148 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 929 transitions. Word has length 159 [2020-12-23 16:01:24,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:24,149 INFO L481 AbstractCegarLoop]: Abstraction has 745 states and 929 transitions. [2020-12-23 16:01:24,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 16:01:24,149 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 929 transitions. [2020-12-23 16:01:24,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-12-23 16:01:24,151 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:24,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:24,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-23 16:01:24,352 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:24,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:24,353 INFO L82 PathProgramCache]: Analyzing trace with hash 770488787, now seen corresponding path program 3 times [2020-12-23 16:01:24,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:24,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653469906] [2020-12-23 16:01:24,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:24,387 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:24,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2000308623] [2020-12-23 16:01:24,388 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:24,941 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 16:01:24,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 16:01:24,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 16:01:24,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:25,092 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-12-23 16:01:25,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653469906] [2020-12-23 16:01:25,093 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:25,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000308623] [2020-12-23 16:01:25,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:01:25,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:01:25,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175335427] [2020-12-23 16:01:25,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:01:25,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:25,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:01:25,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:01:25,097 INFO L87 Difference]: Start difference. First operand 745 states and 929 transitions. Second operand 3 states. [2020-12-23 16:01:25,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:25,197 INFO L93 Difference]: Finished difference Result 1749 states and 2217 transitions. [2020-12-23 16:01:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:01:25,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-12-23 16:01:25,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:25,204 INFO L225 Difference]: With dead ends: 1749 [2020-12-23 16:01:25,204 INFO L226 Difference]: Without dead ends: 1063 [2020-12-23 16:01:25,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:01:25,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2020-12-23 16:01:25,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 906. [2020-12-23 16:01:25,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 906 states. [2020-12-23 16:01:25,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1156 transitions. [2020-12-23 16:01:25,245 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1156 transitions. Word has length 161 [2020-12-23 16:01:25,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:25,246 INFO L481 AbstractCegarLoop]: Abstraction has 906 states and 1156 transitions. [2020-12-23 16:01:25,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:01:25,246 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1156 transitions. [2020-12-23 16:01:25,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-12-23 16:01:25,248 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:25,249 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:25,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-23 16:01:25,464 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:25,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:25,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1484056676, now seen corresponding path program 1 times [2020-12-23 16:01:25,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:25,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107627419] [2020-12-23 16:01:25,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:25,494 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:25,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1044908275] [2020-12-23 16:01:25,494 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:01:25,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 16:01:26,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:26,226 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-12-23 16:01:26,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107627419] [2020-12-23 16:01:26,226 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:26,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044908275] [2020-12-23 16:01:26,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:01:26,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-12-23 16:01:26,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126942225] [2020-12-23 16:01:26,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 16:01:26,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:26,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 16:01:26,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 16:01:26,228 INFO L87 Difference]: Start difference. First operand 906 states and 1156 transitions. Second operand 8 states. [2020-12-23 16:01:26,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:26,378 INFO L93 Difference]: Finished difference Result 1770 states and 2275 transitions. [2020-12-23 16:01:26,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 16:01:26,379 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 178 [2020-12-23 16:01:26,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:26,384 INFO L225 Difference]: With dead ends: 1770 [2020-12-23 16:01:26,384 INFO L226 Difference]: Without dead ends: 912 [2020-12-23 16:01:26,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 16:01:26,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-12-23 16:01:26,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 912. [2020-12-23 16:01:26,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 912 states. [2020-12-23 16:01:26,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1162 transitions. [2020-12-23 16:01:26,419 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1162 transitions. Word has length 178 [2020-12-23 16:01:26,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:26,419 INFO L481 AbstractCegarLoop]: Abstraction has 912 states and 1162 transitions. [2020-12-23 16:01:26,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 16:01:26,420 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1162 transitions. [2020-12-23 16:01:26,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-12-23 16:01:26,422 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:26,422 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:26,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:26,637 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:26,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:26,638 INFO L82 PathProgramCache]: Analyzing trace with hash -453644734, now seen corresponding path program 2 times [2020-12-23 16:01:26,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:26,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902190481] [2020-12-23 16:01:26,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:26,659 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:26,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [845621181] [2020-12-23 16:01:26,659 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:27,245 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 16:01:27,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 16:01:27,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 16:01:27,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-12-23 16:01:27,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902190481] [2020-12-23 16:01:27,556 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:27,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845621181] [2020-12-23 16:01:27,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:01:27,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 16:01:27,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068723595] [2020-12-23 16:01:27,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 16:01:27,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:27,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 16:01:27,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-23 16:01:27,562 INFO L87 Difference]: Start difference. First operand 912 states and 1162 transitions. Second operand 9 states. [2020-12-23 16:01:27,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:27,719 INFO L93 Difference]: Finished difference Result 1781 states and 2286 transitions. [2020-12-23 16:01:27,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 16:01:27,720 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 182 [2020-12-23 16:01:27,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:27,725 INFO L225 Difference]: With dead ends: 1781 [2020-12-23 16:01:27,726 INFO L226 Difference]: Without dead ends: 918 [2020-12-23 16:01:27,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-23 16:01:27,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2020-12-23 16:01:27,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 918. [2020-12-23 16:01:27,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2020-12-23 16:01:27,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1168 transitions. [2020-12-23 16:01:27,782 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1168 transitions. Word has length 182 [2020-12-23 16:01:27,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:27,782 INFO L481 AbstractCegarLoop]: Abstraction has 918 states and 1168 transitions. [2020-12-23 16:01:27,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 16:01:27,782 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1168 transitions. [2020-12-23 16:01:27,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-12-23 16:01:27,785 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:27,786 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:27,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:28,000 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:28,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:28,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1986963428, now seen corresponding path program 3 times [2020-12-23 16:01:28,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:28,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34768964] [2020-12-23 16:01:28,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:28,034 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:28,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [508948493] [2020-12-23 16:01:28,034 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:28,562 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 16:01:28,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 16:01:28,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 16:01:28,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:28,929 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-12-23 16:01:28,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34768964] [2020-12-23 16:01:28,930 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:28,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508948493] [2020-12-23 16:01:28,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:01:28,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:01:28,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808334147] [2020-12-23 16:01:28,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:01:28,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:28,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:01:28,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:01:28,932 INFO L87 Difference]: Start difference. First operand 918 states and 1168 transitions. Second operand 4 states. [2020-12-23 16:01:29,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:29,581 INFO L93 Difference]: Finished difference Result 1509 states and 1921 transitions. [2020-12-23 16:01:29,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:01:29,582 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2020-12-23 16:01:29,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:29,586 INFO L225 Difference]: With dead ends: 1509 [2020-12-23 16:01:29,586 INFO L226 Difference]: Without dead ends: 732 [2020-12-23 16:01:29,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:01:29,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2020-12-23 16:01:29,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2020-12-23 16:01:29,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-12-23 16:01:29,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 909 transitions. [2020-12-23 16:01:29,624 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 909 transitions. Word has length 186 [2020-12-23 16:01:29,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:29,625 INFO L481 AbstractCegarLoop]: Abstraction has 732 states and 909 transitions. [2020-12-23 16:01:29,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:01:29,625 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 909 transitions. [2020-12-23 16:01:29,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-12-23 16:01:29,628 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:29,628 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:29,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:29,843 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:29,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:29,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1622468887, now seen corresponding path program 1 times [2020-12-23 16:01:29,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:29,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326817466] [2020-12-23 16:01:29,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:29,866 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:29,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636815118] [2020-12-23 16:01:29,867 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:01:30,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-23 16:01:30,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:30,702 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-12-23 16:01:30,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326817466] [2020-12-23 16:01:30,703 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:30,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636815118] [2020-12-23 16:01:30,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:01:30,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-12-23 16:01:30,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126125815] [2020-12-23 16:01:30,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 16:01:30,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:30,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 16:01:30,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-23 16:01:30,705 INFO L87 Difference]: Start difference. First operand 732 states and 909 transitions. Second operand 10 states. [2020-12-23 16:01:30,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:30,867 INFO L93 Difference]: Finished difference Result 1418 states and 1775 transitions. [2020-12-23 16:01:30,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 16:01:30,868 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2020-12-23 16:01:30,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:30,872 INFO L225 Difference]: With dead ends: 1418 [2020-12-23 16:01:30,872 INFO L226 Difference]: Without dead ends: 736 [2020-12-23 16:01:30,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-23 16:01:30,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2020-12-23 16:01:30,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 736. [2020-12-23 16:01:30,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 736 states. [2020-12-23 16:01:30,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 913 transitions. [2020-12-23 16:01:30,906 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 913 transitions. Word has length 193 [2020-12-23 16:01:30,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:30,907 INFO L481 AbstractCegarLoop]: Abstraction has 736 states and 913 transitions. [2020-12-23 16:01:30,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 16:01:30,907 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 913 transitions. [2020-12-23 16:01:30,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-12-23 16:01:30,911 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:30,911 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:31,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-12-23 16:01:31,125 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:31,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:31,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1336921525, now seen corresponding path program 2 times [2020-12-23 16:01:31,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:31,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694613004] [2020-12-23 16:01:31,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:31,148 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:31,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832944691] [2020-12-23 16:01:31,149 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:01:31,712 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 16:01:31,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 16:01:31,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 16:01:31,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:01:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-12-23 16:01:31,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694613004] [2020-12-23 16:01:31,994 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:01:31,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832944691] [2020-12-23 16:01:31,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:01:31,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-12-23 16:01:31,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230395342] [2020-12-23 16:01:31,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 16:01:31,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:01:31,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 16:01:31,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-23 16:01:31,996 INFO L87 Difference]: Start difference. First operand 736 states and 913 transitions. Second operand 11 states. [2020-12-23 16:01:32,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:01:32,175 INFO L93 Difference]: Finished difference Result 1425 states and 1782 transitions. [2020-12-23 16:01:32,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 16:01:32,175 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 197 [2020-12-23 16:01:32,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:01:32,179 INFO L225 Difference]: With dead ends: 1425 [2020-12-23 16:01:32,179 INFO L226 Difference]: Without dead ends: 740 [2020-12-23 16:01:32,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-23 16:01:32,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-12-23 16:01:32,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 740. [2020-12-23 16:01:32,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2020-12-23 16:01:32,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 917 transitions. [2020-12-23 16:01:32,211 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 917 transitions. Word has length 197 [2020-12-23 16:01:32,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:01:32,211 INFO L481 AbstractCegarLoop]: Abstraction has 740 states and 917 transitions. [2020-12-23 16:01:32,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 16:01:32,212 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 917 transitions. [2020-12-23 16:01:32,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-12-23 16:01:32,215 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:01:32,215 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:01:32,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-12-23 16:01:32,430 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:01:32,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:01:32,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1628837737, now seen corresponding path program 3 times [2020-12-23 16:01:32,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:01:32,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164739361] [2020-12-23 16:01:32,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:01:32,518 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:01:32,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1384446678] [2020-12-23 16:01:32,519 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true