/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 15:53:31,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 15:53:31,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 15:53:31,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-23 15:53:31,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 15:53:31,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 15:53:31,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 15:53:31,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 15:53:31,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 15:53:31,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 15:53:31,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 15:53:31,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 15:53:31,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 15:53:31,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 15:53:31,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 15:53:31,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 15:53:31,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 15:53:31,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 15:53:31,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 15:53:31,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 15:53:31,303 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 15:53:31,362 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 15:53:31,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 15:53:31,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 15:53:31,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 15:53:31,367 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 15:53:31,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 15:53:31,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 15:53:31,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 15:53:31,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 15:53:31,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 15:53:31,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 15:53:31,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 15:53:31,370 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 15:53:31,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 15:53:31,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 15:53:31,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 15:53:31,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 15:53:31,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 15:53:31,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 15:53:31,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 15:53:31,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 15:53:31,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 15:53:31,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 15:53:31,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 15:53:31,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 15:53:31,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 15:53:31,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 15:53:31,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 15:53:31,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 15:53:31,908 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 15:53:31,911 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 15:53:31,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-2.i [2020-12-23 15:53:32,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8f8e1b7a7/2defbc39edf24ab4aabedc59853d3f86/FLAG2e4ba502c [2020-12-23 15:53:32,895 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 15:53:32,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-2.i [2020-12-23 15:53:32,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8f8e1b7a7/2defbc39edf24ab4aabedc59853d3f86/FLAG2e4ba502c [2020-12-23 15:53:33,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8f8e1b7a7/2defbc39edf24ab4aabedc59853d3f86 [2020-12-23 15:53:33,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 15:53:33,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 15:53:33,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 15:53:33,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 15:53:33,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 15:53:33,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:53:33" (1/1) ... [2020-12-23 15:53:33,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c259238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:33, skipping insertion in model container [2020-12-23 15:53:33,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:53:33" (1/1) ... [2020-12-23 15:53:33,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 15:53:33,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 15:53:33,882 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_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 15:53:34,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 15:53:34,327 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 15:53:34,361 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_BER_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 15:53:34,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 15:53:34,622 INFO L208 MainTranslator]: Completed translation [2020-12-23 15:53:34,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:34 WrapperNode [2020-12-23 15:53:34,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 15:53:34,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 15:53:34,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 15:53:34,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 15:53:34,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:34" (1/1) ... [2020-12-23 15:53:34,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:34" (1/1) ... [2020-12-23 15:53:34,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 15:53:34,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 15:53:34,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 15:53:34,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 15:53:34,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:34" (1/1) ... [2020-12-23 15:53:34,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:34" (1/1) ... [2020-12-23 15:53:34,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:34" (1/1) ... [2020-12-23 15:53:34,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:34" (1/1) ... [2020-12-23 15:53:35,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:34" (1/1) ... [2020-12-23 15:53:35,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:34" (1/1) ... [2020-12-23 15:53:35,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:34" (1/1) ... [2020-12-23 15:53:35,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 15:53:35,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 15:53:35,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 15:53:35,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 15:53:35,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 15:53:35,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 15:53:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 15:53:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 15:53:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 15:53:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 15:53:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-12-23 15:53:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 15:53:35,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 15:53:35,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 15:53:35,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 15:53:35,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 15:53:39,023 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 15:53:39,023 INFO L299 CfgBuilder]: Removed 216 assume(true) statements. [2020-12-23 15:53:39,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:53:39 BoogieIcfgContainer [2020-12-23 15:53:39,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 15:53:39,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 15:53:39,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 15:53:39,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 15:53:39,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:53:33" (1/3) ... [2020-12-23 15:53:39,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b42c806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:53:39, skipping insertion in model container [2020-12-23 15:53:39,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:34" (2/3) ... [2020-12-23 15:53:39,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b42c806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:53:39, skipping insertion in model container [2020-12-23 15:53:39,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:53:39" (3/3) ... [2020-12-23 15:53:39,035 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test10-2.i [2020-12-23 15:53:39,042 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 15:53:39,048 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-12-23 15:53:39,071 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-12-23 15:53:39,105 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 15:53:39,106 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 15:53:39,106 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 15:53:39,106 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 15:53:39,106 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 15:53:39,106 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 15:53:39,107 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 15:53:39,107 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 15:53:39,137 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states. [2020-12-23 15:53:39,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 15:53:39,145 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:39,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:53:39,147 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 15:53:39,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:39,155 INFO L82 PathProgramCache]: Analyzing trace with hash -128377380, now seen corresponding path program 1 times [2020-12-23 15:53:39,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:39,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344205114] [2020-12-23 15:53:39,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:39,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:53:39,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344205114] [2020-12-23 15:53:39,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:39,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 15:53:39,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979810750] [2020-12-23 15:53:39,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 15:53:39,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:39,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 15:53:39,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 15:53:39,385 INFO L87 Difference]: Start difference. First operand 499 states. Second operand 2 states. [2020-12-23 15:53:39,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:39,459 INFO L93 Difference]: Finished difference Result 996 states and 1678 transitions. [2020-12-23 15:53:39,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 15:53:39,460 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-23 15:53:39,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:39,482 INFO L225 Difference]: With dead ends: 996 [2020-12-23 15:53:39,482 INFO L226 Difference]: Without dead ends: 465 [2020-12-23 15:53:39,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 15:53:39,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-12-23 15:53:39,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 465. [2020-12-23 15:53:39,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2020-12-23 15:53:39,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 608 transitions. [2020-12-23 15:53:39,569 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 608 transitions. Word has length 9 [2020-12-23 15:53:39,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:39,569 INFO L481 AbstractCegarLoop]: Abstraction has 465 states and 608 transitions. [2020-12-23 15:53:39,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 15:53:39,570 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 608 transitions. [2020-12-23 15:53:39,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-23 15:53:39,572 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:39,573 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 15:53:39,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 15:53:39,574 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 15:53:39,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:39,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1568739198, now seen corresponding path program 1 times [2020-12-23 15:53:39,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:39,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872342490] [2020-12-23 15:53:39,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:39,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:53:39,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872342490] [2020-12-23 15:53:39,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:39,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:53:39,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050001562] [2020-12-23 15:53:39,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:53:39,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:39,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:53:39,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:39,706 INFO L87 Difference]: Start difference. First operand 465 states and 608 transitions. Second operand 4 states. [2020-12-23 15:53:40,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:40,546 INFO L93 Difference]: Finished difference Result 831 states and 1087 transitions. [2020-12-23 15:53:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:53:40,547 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-12-23 15:53:40,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:40,553 INFO L225 Difference]: With dead ends: 831 [2020-12-23 15:53:40,553 INFO L226 Difference]: Without dead ends: 540 [2020-12-23 15:53:40,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:53:40,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-12-23 15:53:40,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 467. [2020-12-23 15:53:40,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-12-23 15:53:40,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 610 transitions. [2020-12-23 15:53:40,605 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 610 transitions. Word has length 44 [2020-12-23 15:53:40,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:40,606 INFO L481 AbstractCegarLoop]: Abstraction has 467 states and 610 transitions. [2020-12-23 15:53:40,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:53:40,606 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 610 transitions. [2020-12-23 15:53:40,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-23 15:53:40,616 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:40,616 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:53:40,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 15:53:40,617 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 15:53:40,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:40,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1325558428, now seen corresponding path program 1 times [2020-12-23 15:53:40,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:40,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642897302] [2020-12-23 15:53:40,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:40,700 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:40,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415089120] [2020-12-23 15:53:40,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:41,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:53:41,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:41,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:53:41,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642897302] [2020-12-23 15:53:41,292 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:41,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415089120] [2020-12-23 15:53:41,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:41,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:53:41,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563767111] [2020-12-23 15:53:41,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:53:41,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:41,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:53:41,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:53:41,295 INFO L87 Difference]: Start difference. First operand 467 states and 610 transitions. Second operand 3 states. [2020-12-23 15:53:41,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:41,418 INFO L93 Difference]: Finished difference Result 951 states and 1247 transitions. [2020-12-23 15:53:41,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:53:41,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-12-23 15:53:41,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:41,422 INFO L225 Difference]: With dead ends: 951 [2020-12-23 15:53:41,423 INFO L226 Difference]: Without dead ends: 488 [2020-12-23 15:53:41,424 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 15:53:41,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-12-23 15:53:41,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 487. [2020-12-23 15:53:41,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2020-12-23 15:53:41,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 630 transitions. [2020-12-23 15:53:41,443 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 630 transitions. Word has length 97 [2020-12-23 15:53:41,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:41,444 INFO L481 AbstractCegarLoop]: Abstraction has 487 states and 630 transitions. [2020-12-23 15:53:41,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:53:41,444 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 630 transitions. [2020-12-23 15:53:41,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-23 15:53:41,452 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:41,452 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 15:53:41,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-23 15:53:41,667 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 15:53:41,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:41,668 INFO L82 PathProgramCache]: Analyzing trace with hash 948433376, now seen corresponding path program 1 times [2020-12-23 15:53:41,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:41,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963938157] [2020-12-23 15:53:41,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:41,693 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:41,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [566850681] [2020-12-23 15:53:41,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:42,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:53:42,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:42,187 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 15:53:42,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963938157] [2020-12-23 15:53:42,188 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:42,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566850681] [2020-12-23 15:53:42,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:42,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:53:42,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865357735] [2020-12-23 15:53:42,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:53:42,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:42,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:53:42,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:53:42,192 INFO L87 Difference]: Start difference. First operand 487 states and 630 transitions. Second operand 3 states. [2020-12-23 15:53:42,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:42,289 INFO L93 Difference]: Finished difference Result 787 states and 1024 transitions. [2020-12-23 15:53:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:53:42,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-12-23 15:53:42,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:42,293 INFO L225 Difference]: With dead ends: 787 [2020-12-23 15:53:42,294 INFO L226 Difference]: Without dead ends: 508 [2020-12-23 15:53:42,296 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 15:53:42,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-12-23 15:53:42,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 507. [2020-12-23 15:53:42,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-12-23 15:53:42,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 650 transitions. [2020-12-23 15:53:42,311 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 650 transitions. Word has length 97 [2020-12-23 15:53:42,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:42,313 INFO L481 AbstractCegarLoop]: Abstraction has 507 states and 650 transitions. [2020-12-23 15:53:42,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:53:42,314 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 650 transitions. [2020-12-23 15:53:42,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-23 15:53:42,316 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:42,316 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 15:53:42,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:42,530 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 15:53:42,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:42,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1352389214, now seen corresponding path program 1 times [2020-12-23 15:53:42,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:42,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885043937] [2020-12-23 15:53:42,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:42,554 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:42,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [264443122] [2020-12-23 15:53:42,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:42,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:53:42,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:42,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:53:42,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885043937] [2020-12-23 15:53:42,965 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:42,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264443122] [2020-12-23 15:53:42,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:42,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:53:42,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470090578] [2020-12-23 15:53:42,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:53:42,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:42,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:53:42,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:42,967 INFO L87 Difference]: Start difference. First operand 507 states and 650 transitions. Second operand 4 states. [2020-12-23 15:53:43,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:43,132 INFO L93 Difference]: Finished difference Result 1086 states and 1400 transitions. [2020-12-23 15:53:43,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:53:43,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 97 [2020-12-23 15:53:43,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:43,145 INFO L225 Difference]: With dead ends: 1086 [2020-12-23 15:53:43,145 INFO L226 Difference]: Without dead ends: 583 [2020-12-23 15:53:43,147 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 15:53:43,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2020-12-23 15:53:43,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 493. [2020-12-23 15:53:43,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2020-12-23 15:53:43,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 629 transitions. [2020-12-23 15:53:43,173 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 629 transitions. Word has length 97 [2020-12-23 15:53:43,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:43,173 INFO L481 AbstractCegarLoop]: Abstraction has 493 states and 629 transitions. [2020-12-23 15:53:43,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:53:43,173 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 629 transitions. [2020-12-23 15:53:43,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-23 15:53:43,175 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:43,175 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 15:53:43,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:43,390 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 15:53:43,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:43,391 INFO L82 PathProgramCache]: Analyzing trace with hash 881478960, now seen corresponding path program 1 times [2020-12-23 15:53:43,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:43,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422723969] [2020-12-23 15:53:43,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:43,424 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:43,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1023694489] [2020-12-23 15:53:43,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:43,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:53:43,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:43,959 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 15:53:43,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422723969] [2020-12-23 15:53:43,959 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:43,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023694489] [2020-12-23 15:53:43,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:43,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:53:43,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410066864] [2020-12-23 15:53:43,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:53:43,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:43,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:53:43,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:43,962 INFO L87 Difference]: Start difference. First operand 493 states and 629 transitions. Second operand 4 states. [2020-12-23 15:53:44,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:44,082 INFO L93 Difference]: Finished difference Result 761 states and 972 transitions. [2020-12-23 15:53:44,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:53:44,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 97 [2020-12-23 15:53:44,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:44,086 INFO L225 Difference]: With dead ends: 761 [2020-12-23 15:53:44,087 INFO L226 Difference]: Without dead ends: 480 [2020-12-23 15:53:44,088 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 15:53:44,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-12-23 15:53:44,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 479. [2020-12-23 15:53:44,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-12-23 15:53:44,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 608 transitions. [2020-12-23 15:53:44,104 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 608 transitions. Word has length 97 [2020-12-23 15:53:44,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:44,105 INFO L481 AbstractCegarLoop]: Abstraction has 479 states and 608 transitions. [2020-12-23 15:53:44,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:53:44,105 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 608 transitions. [2020-12-23 15:53:44,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-23 15:53:44,106 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:44,107 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 15:53:44,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:44,324 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 15:53:44,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:44,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1427704734, now seen corresponding path program 1 times [2020-12-23 15:53:44,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:44,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831159198] [2020-12-23 15:53:44,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:44,365 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:44,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938557609] [2020-12-23 15:53:44,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:44,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 15:53:44,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:44,795 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:53:44,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831159198] [2020-12-23 15:53:44,796 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:44,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938557609] [2020-12-23 15:53:44,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:44,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:53:44,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417983364] [2020-12-23 15:53:44,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:53:44,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:44,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:53:44,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:53:44,799 INFO L87 Difference]: Start difference. First operand 479 states and 608 transitions. Second operand 3 states. [2020-12-23 15:53:44,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:44,891 INFO L93 Difference]: Finished difference Result 1231 states and 1562 transitions. [2020-12-23 15:53:44,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:53:44,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-12-23 15:53:44,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:44,896 INFO L225 Difference]: With dead ends: 1231 [2020-12-23 15:53:44,896 INFO L226 Difference]: Without dead ends: 756 [2020-12-23 15:53:44,897 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 15:53:44,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-12-23 15:53:44,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 721. [2020-12-23 15:53:44,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 721 states. [2020-12-23 15:53:44,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 930 transitions. [2020-12-23 15:53:44,920 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 930 transitions. Word has length 97 [2020-12-23 15:53:44,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:44,920 INFO L481 AbstractCegarLoop]: Abstraction has 721 states and 930 transitions. [2020-12-23 15:53:44,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:53:44,920 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 930 transitions. [2020-12-23 15:53:44,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-12-23 15:53:44,922 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:44,922 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 15:53:45,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-23 15:53:45,134 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 15:53:45,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:45,136 INFO L82 PathProgramCache]: Analyzing trace with hash -371205377, now seen corresponding path program 1 times [2020-12-23 15:53:45,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:45,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835682242] [2020-12-23 15:53:45,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:45,179 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:45,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378445347] [2020-12-23 15:53:45,179 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 15:53:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:45,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:53:45,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:45,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:53:45,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835682242] [2020-12-23 15:53:45,658 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:45,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378445347] [2020-12-23 15:53:45,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:45,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:53:45,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216235394] [2020-12-23 15:53:45,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:53:45,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:45,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:53:45,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:53:45,664 INFO L87 Difference]: Start difference. First operand 721 states and 930 transitions. Second operand 3 states. [2020-12-23 15:53:45,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:45,724 INFO L93 Difference]: Finished difference Result 1400 states and 1809 transitions. [2020-12-23 15:53:45,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:53:45,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-12-23 15:53:45,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:45,729 INFO L225 Difference]: With dead ends: 1400 [2020-12-23 15:53:45,729 INFO L226 Difference]: Without dead ends: 727 [2020-12-23 15:53:45,731 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 15:53:45,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2020-12-23 15:53:45,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 727. [2020-12-23 15:53:45,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2020-12-23 15:53:45,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 936 transitions. [2020-12-23 15:53:45,752 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 936 transitions. Word has length 104 [2020-12-23 15:53:45,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:45,753 INFO L481 AbstractCegarLoop]: Abstraction has 727 states and 936 transitions. [2020-12-23 15:53:45,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:53:45,753 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 936 transitions. [2020-12-23 15:53:45,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-23 15:53:45,754 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:45,754 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 15:53:45,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:45,969 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 15:53:45,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:45,971 INFO L82 PathProgramCache]: Analyzing trace with hash -2085853600, now seen corresponding path program 1 times [2020-12-23 15:53:45,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:45,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694998259] [2020-12-23 15:53:45,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:45,990 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:45,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1957717606] [2020-12-23 15:53:45,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:46,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 15:53:46,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:46,486 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 15:53:46,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694998259] [2020-12-23 15:53:46,487 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:46,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957717606] [2020-12-23 15:53:46,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:53:46,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-12-23 15:53:46,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862491350] [2020-12-23 15:53:46,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:53:46,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:46,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:53:46,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:46,489 INFO L87 Difference]: Start difference. First operand 727 states and 936 transitions. Second operand 4 states. [2020-12-23 15:53:46,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:46,590 INFO L93 Difference]: Finished difference Result 1411 states and 1820 transitions. [2020-12-23 15:53:46,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:53:46,591 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 106 [2020-12-23 15:53:46,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:46,595 INFO L225 Difference]: With dead ends: 1411 [2020-12-23 15:53:46,595 INFO L226 Difference]: Without dead ends: 733 [2020-12-23 15:53:46,597 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 15:53:46,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2020-12-23 15:53:46,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2020-12-23 15:53:46,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-12-23 15:53:46,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 942 transitions. [2020-12-23 15:53:46,618 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 942 transitions. Word has length 106 [2020-12-23 15:53:46,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:46,619 INFO L481 AbstractCegarLoop]: Abstraction has 733 states and 942 transitions. [2020-12-23 15:53:46,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:53:46,619 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 942 transitions. [2020-12-23 15:53:46,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-23 15:53:46,621 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:46,621 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 15:53:46,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:46,836 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 15:53:46,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:46,837 INFO L82 PathProgramCache]: Analyzing trace with hash -462744993, now seen corresponding path program 2 times [2020-12-23 15:53:46,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:46,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249685877] [2020-12-23 15:53:46,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:46,855 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:46,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527924889] [2020-12-23 15:53:46,855 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 15:53:48,211 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 15:53:48,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:53:48,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 15:53:48,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:48,340 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-23 15:53:48,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249685877] [2020-12-23 15:53:48,341 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:48,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527924889] [2020-12-23 15:53:48,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:53:48,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-12-23 15:53:48,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842015180] [2020-12-23 15:53:48,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 15:53:48,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:48,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 15:53:48,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:53:48,343 INFO L87 Difference]: Start difference. First operand 733 states and 942 transitions. Second operand 5 states. [2020-12-23 15:53:48,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:48,466 INFO L93 Difference]: Finished difference Result 1422 states and 1831 transitions. [2020-12-23 15:53:48,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 15:53:48,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2020-12-23 15:53:48,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:48,471 INFO L225 Difference]: With dead ends: 1422 [2020-12-23 15:53:48,472 INFO L226 Difference]: Without dead ends: 739 [2020-12-23 15:53:48,473 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 15:53:48,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2020-12-23 15:53:48,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2020-12-23 15:53:48,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-12-23 15:53:48,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 948 transitions. [2020-12-23 15:53:48,497 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 948 transitions. Word has length 108 [2020-12-23 15:53:48,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:48,498 INFO L481 AbstractCegarLoop]: Abstraction has 739 states and 948 transitions. [2020-12-23 15:53:48,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 15:53:48,498 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 948 transitions. [2020-12-23 15:53:48,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-23 15:53:48,500 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:48,500 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 15:53:48,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-23 15:53:48,709 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 15:53:48,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:48,710 INFO L82 PathProgramCache]: Analyzing trace with hash 87417216, now seen corresponding path program 3 times [2020-12-23 15:53:48,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:48,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015648342] [2020-12-23 15:53:48,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:48,725 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:48,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49912011] [2020-12-23 15:53:48,726 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 15:53:50,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 15:53:50,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:53:50,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 15:53:50,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:50,296 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 15:53:50,297 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 15:53:50,304 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 15:53:50,308 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 15:53:50,309 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 15:53:50,313 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 15:53:50,314 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 15:53:50,315 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:18, output treesize:13 [2020-12-23 15:53:50,339 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 15:53:50,339 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 15:53:50,343 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 15:53:50,347 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 15:53:50,351 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 15:53:50,352 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 15:53:50,352 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:12 [2020-12-23 15:53:50,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 15:53:50,386 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 15:53:50,387 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 15:53:50,392 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 15:53:50,394 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 15:53:50,394 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:3 [2020-12-23 15:53:50,464 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 15:53:50,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015648342] [2020-12-23 15:53:50,465 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:50,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49912011] [2020-12-23 15:53:50,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:50,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 15:53:50,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782051663] [2020-12-23 15:53:50,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 15:53:50,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:50,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 15:53:50,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:53:50,467 INFO L87 Difference]: Start difference. First operand 739 states and 948 transitions. Second operand 5 states. [2020-12-23 15:53:51,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:51,559 INFO L93 Difference]: Finished difference Result 1382 states and 1772 transitions. [2020-12-23 15:53:51,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 15:53:51,559 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-12-23 15:53:51,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:51,564 INFO L225 Difference]: With dead ends: 1382 [2020-12-23 15:53:51,564 INFO L226 Difference]: Without dead ends: 739 [2020-12-23 15:53:51,571 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 15:53:51,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2020-12-23 15:53:51,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2020-12-23 15:53:51,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-12-23 15:53:51,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 947 transitions. [2020-12-23 15:53:51,600 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 947 transitions. Word has length 110 [2020-12-23 15:53:51,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:51,600 INFO L481 AbstractCegarLoop]: Abstraction has 739 states and 947 transitions. [2020-12-23 15:53:51,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 15:53:51,601 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 947 transitions. [2020-12-23 15:53:51,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 15:53:51,605 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:51,605 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 15:53:51,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:51,815 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 15:53:51,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:51,816 INFO L82 PathProgramCache]: Analyzing trace with hash -2117457625, now seen corresponding path program 1 times [2020-12-23 15:53:51,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:51,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789641817] [2020-12-23 15:53:51,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:51,856 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:51,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1332770039] [2020-12-23 15:53:51,856 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 15:53:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:52,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:53:52,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:52,380 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 15:53:52,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789641817] [2020-12-23 15:53:52,380 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:52,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332770039] [2020-12-23 15:53:52,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:52,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:53:52,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138628680] [2020-12-23 15:53:52,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:53:52,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:52,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:53:52,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:53:52,382 INFO L87 Difference]: Start difference. First operand 739 states and 947 transitions. Second operand 3 states. [2020-12-23 15:53:52,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:52,482 INFO L93 Difference]: Finished difference Result 1502 states and 1935 transitions. [2020-12-23 15:53:52,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:53:52,483 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-12-23 15:53:52,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:52,487 INFO L225 Difference]: With dead ends: 1502 [2020-12-23 15:53:52,487 INFO L226 Difference]: Without dead ends: 781 [2020-12-23 15:53:52,489 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 15:53:52,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2020-12-23 15:53:52,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 779. [2020-12-23 15:53:52,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 779 states. [2020-12-23 15:53:52,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 987 transitions. [2020-12-23 15:53:52,513 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 987 transitions. Word has length 157 [2020-12-23 15:53:52,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:52,513 INFO L481 AbstractCegarLoop]: Abstraction has 779 states and 987 transitions. [2020-12-23 15:53:52,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:53:52,513 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 987 transitions. [2020-12-23 15:53:52,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 15:53:52,515 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:52,515 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 15:53:52,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:52,729 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 15:53:52,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:52,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1572585051, now seen corresponding path program 1 times [2020-12-23 15:53:52,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:52,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500982802] [2020-12-23 15:53:52,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:52,753 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:52,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945105344] [2020-12-23 15:53:52,754 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 15:53:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:53,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:53:53,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:53,365 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 15:53:53,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500982802] [2020-12-23 15:53:53,366 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:53,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945105344] [2020-12-23 15:53:53,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:53,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:53:53,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357380908] [2020-12-23 15:53:53,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:53:53,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:53,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:53:53,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:53,368 INFO L87 Difference]: Start difference. First operand 779 states and 987 transitions. Second operand 4 states. [2020-12-23 15:53:53,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:53,482 INFO L93 Difference]: Finished difference Result 1496 states and 1900 transitions. [2020-12-23 15:53:53,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:53:53,483 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 15:53:53,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:53,487 INFO L225 Difference]: With dead ends: 1496 [2020-12-23 15:53:53,487 INFO L226 Difference]: Without dead ends: 753 [2020-12-23 15:53:53,489 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 15:53:53,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2020-12-23 15:53:53,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 751. [2020-12-23 15:53:53,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-12-23 15:53:53,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 945 transitions. [2020-12-23 15:53:53,517 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 945 transitions. Word has length 157 [2020-12-23 15:53:53,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:53,517 INFO L481 AbstractCegarLoop]: Abstraction has 751 states and 945 transitions. [2020-12-23 15:53:53,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:53:53,517 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 945 transitions. [2020-12-23 15:53:53,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 15:53:53,520 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:53,520 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 15:53:53,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-23 15:53:53,735 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 15:53:53,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:53,736 INFO L82 PathProgramCache]: Analyzing trace with hash 94293941, now seen corresponding path program 1 times [2020-12-23 15:53:53,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:53,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226443010] [2020-12-23 15:53:53,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:53,761 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:53,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1308100344] [2020-12-23 15:53:53,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:54,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 15:53:54,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:54,316 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 15:53:54,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226443010] [2020-12-23 15:53:54,316 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:54,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308100344] [2020-12-23 15:53:54,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:54,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 15:53:54,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915514945] [2020-12-23 15:53:54,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 15:53:54,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:54,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 15:53:54,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:53:54,319 INFO L87 Difference]: Start difference. First operand 751 states and 945 transitions. Second operand 5 states. [2020-12-23 15:53:54,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:54,491 INFO L93 Difference]: Finished difference Result 2209 states and 2786 transitions. [2020-12-23 15:53:54,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 15:53:54,492 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-12-23 15:53:54,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:54,499 INFO L225 Difference]: With dead ends: 2209 [2020-12-23 15:53:54,500 INFO L226 Difference]: Without dead ends: 1496 [2020-12-23 15:53:54,501 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 15:53:54,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2020-12-23 15:53:54,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 797. [2020-12-23 15:53:54,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-12-23 15:53:54,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 995 transitions. [2020-12-23 15:53:54,535 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 995 transitions. Word has length 157 [2020-12-23 15:53:54,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:54,536 INFO L481 AbstractCegarLoop]: Abstraction has 797 states and 995 transitions. [2020-12-23 15:53:54,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 15:53:54,536 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 995 transitions. [2020-12-23 15:53:54,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 15:53:54,539 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:54,539 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 15:53:54,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-23 15:53:54,754 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 15:53:54,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:54,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1994860229, now seen corresponding path program 1 times [2020-12-23 15:53:54,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:54,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473729584] [2020-12-23 15:53:54,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:54,773 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:54,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [256110002] [2020-12-23 15:53:54,774 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 15:53:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:55,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 15:53:55,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:55,352 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 15:53:55,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473729584] [2020-12-23 15:53:55,353 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:55,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256110002] [2020-12-23 15:53:55,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:55,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:53:55,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403773852] [2020-12-23 15:53:55,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:53:55,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:55,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:53:55,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:55,356 INFO L87 Difference]: Start difference. First operand 797 states and 995 transitions. Second operand 4 states. [2020-12-23 15:53:55,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:55,435 INFO L93 Difference]: Finished difference Result 1503 states and 1887 transitions. [2020-12-23 15:53:55,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:53:55,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-12-23 15:53:55,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:55,439 INFO L225 Difference]: With dead ends: 1503 [2020-12-23 15:53:55,439 INFO L226 Difference]: Without dead ends: 733 [2020-12-23 15:53:55,442 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 15:53:55,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2020-12-23 15:53:55,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2020-12-23 15:53:55,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-12-23 15:53:55,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 917 transitions. [2020-12-23 15:53:55,468 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 917 transitions. Word has length 157 [2020-12-23 15:53:55,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:55,468 INFO L481 AbstractCegarLoop]: Abstraction has 733 states and 917 transitions. [2020-12-23 15:53:55,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:53:55,468 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 917 transitions. [2020-12-23 15:53:55,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 15:53:55,470 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:55,470 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 15:53:55,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-23 15:53:55,685 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 15:53:55,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:55,686 INFO L82 PathProgramCache]: Analyzing trace with hash 639166515, now seen corresponding path program 1 times [2020-12-23 15:53:55,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:55,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50980023] [2020-12-23 15:53:55,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:55,703 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:55,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1640004090] [2020-12-23 15:53:55,704 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 15:53:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:56,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 15:53:56,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:56,317 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 15:53:56,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50980023] [2020-12-23 15:53:56,318 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:56,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640004090] [2020-12-23 15:53:56,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:53:56,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-23 15:53:56,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149595175] [2020-12-23 15:53:56,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 15:53:56,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:56,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 15:53:56,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 15:53:56,319 INFO L87 Difference]: Start difference. First operand 733 states and 917 transitions. Second operand 6 states. [2020-12-23 15:53:56,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:56,421 INFO L93 Difference]: Finished difference Result 1424 states and 1796 transitions. [2020-12-23 15:53:56,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 15:53:56,422 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-12-23 15:53:56,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:56,426 INFO L225 Difference]: With dead ends: 1424 [2020-12-23 15:53:56,427 INFO L226 Difference]: Without dead ends: 739 [2020-12-23 15:53:56,428 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 15:53:56,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2020-12-23 15:53:56,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2020-12-23 15:53:56,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-12-23 15:53:56,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 923 transitions. [2020-12-23 15:53:56,454 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 923 transitions. Word has length 157 [2020-12-23 15:53:56,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:56,455 INFO L481 AbstractCegarLoop]: Abstraction has 739 states and 923 transitions. [2020-12-23 15:53:56,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 15:53:56,455 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 923 transitions. [2020-12-23 15:53:56,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-12-23 15:53:56,457 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:56,457 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 15:53:56,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:56,673 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 15:53:56,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:56,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1050888114, now seen corresponding path program 2 times [2020-12-23 15:53:56,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:56,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456720511] [2020-12-23 15:53:56,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:56,705 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:56,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1295950777] [2020-12-23 15:53:56,709 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 15:54:05,447 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 15:54:05,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:54:05,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 15:54:05,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:05,639 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 15:54:05,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456720511] [2020-12-23 15:54:05,639 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:05,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295950777] [2020-12-23 15:54:05,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:54:05,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-23 15:54:05,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214644349] [2020-12-23 15:54:05,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 15:54:05,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:05,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 15:54:05,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 15:54:05,641 INFO L87 Difference]: Start difference. First operand 739 states and 923 transitions. Second operand 7 states. [2020-12-23 15:54:05,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:05,754 INFO L93 Difference]: Finished difference Result 1435 states and 1807 transitions. [2020-12-23 15:54:05,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 15:54:05,754 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 159 [2020-12-23 15:54:05,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:05,758 INFO L225 Difference]: With dead ends: 1435 [2020-12-23 15:54:05,758 INFO L226 Difference]: Without dead ends: 745 [2020-12-23 15:54:05,759 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 15:54:05,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2020-12-23 15:54:05,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 745. [2020-12-23 15:54:05,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-12-23 15:54:05,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 929 transitions. [2020-12-23 15:54:05,788 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 929 transitions. Word has length 159 [2020-12-23 15:54:05,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:05,788 INFO L481 AbstractCegarLoop]: Abstraction has 745 states and 929 transitions. [2020-12-23 15:54:05,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 15:54:05,789 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 929 transitions. [2020-12-23 15:54:05,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-12-23 15:54:05,791 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:05,791 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 15:54:05,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-23 15:54:05,992 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 15:54:05,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:05,993 INFO L82 PathProgramCache]: Analyzing trace with hash 770488787, now seen corresponding path program 3 times [2020-12-23 15:54:05,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:05,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879085591] [2020-12-23 15:54:05,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:06,012 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:06,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [791287334] [2020-12-23 15:54:06,012 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 15:54:06,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 15:54:06,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:54:06,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 15:54:06,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:06,705 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 15:54:06,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879085591] [2020-12-23 15:54:06,705 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:06,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791287334] [2020-12-23 15:54:06,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:54:06,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:54:06,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871746007] [2020-12-23 15:54:06,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:54:06,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:06,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:54:06,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:54:06,707 INFO L87 Difference]: Start difference. First operand 745 states and 929 transitions. Second operand 3 states. [2020-12-23 15:54:06,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:06,796 INFO L93 Difference]: Finished difference Result 1749 states and 2217 transitions. [2020-12-23 15:54:06,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:54:06,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-12-23 15:54:06,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:06,831 INFO L225 Difference]: With dead ends: 1749 [2020-12-23 15:54:06,831 INFO L226 Difference]: Without dead ends: 1063 [2020-12-23 15:54:06,833 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 15:54:06,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2020-12-23 15:54:06,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 906. [2020-12-23 15:54:06,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 906 states. [2020-12-23 15:54:06,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1156 transitions. [2020-12-23 15:54:06,869 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1156 transitions. Word has length 161 [2020-12-23 15:54:06,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:06,869 INFO L481 AbstractCegarLoop]: Abstraction has 906 states and 1156 transitions. [2020-12-23 15:54:06,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:54:06,870 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1156 transitions. [2020-12-23 15:54:06,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-12-23 15:54:06,872 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:06,872 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 15:54:07,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-23 15:54:07,088 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 15:54:07,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:07,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1484056676, now seen corresponding path program 1 times [2020-12-23 15:54:07,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:07,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739037932] [2020-12-23 15:54:07,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:07,110 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:07,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1758317876] [2020-12-23 15:54:07,111 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 15:54:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:54:07,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 15:54:07,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:07,767 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 15:54:07,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739037932] [2020-12-23 15:54:07,768 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:07,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758317876] [2020-12-23 15:54:07,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:54:07,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-12-23 15:54:07,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80523739] [2020-12-23 15:54:07,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 15:54:07,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:07,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 15:54:07,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 15:54:07,769 INFO L87 Difference]: Start difference. First operand 906 states and 1156 transitions. Second operand 8 states. [2020-12-23 15:54:07,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:07,892 INFO L93 Difference]: Finished difference Result 1770 states and 2275 transitions. [2020-12-23 15:54:07,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 15:54:07,893 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 178 [2020-12-23 15:54:07,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:07,897 INFO L225 Difference]: With dead ends: 1770 [2020-12-23 15:54:07,897 INFO L226 Difference]: Without dead ends: 912 [2020-12-23 15:54:07,899 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 15:54:07,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-12-23 15:54:07,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 912. [2020-12-23 15:54:07,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 912 states. [2020-12-23 15:54:07,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1162 transitions. [2020-12-23 15:54:07,929 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1162 transitions. Word has length 178 [2020-12-23 15:54:07,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:07,930 INFO L481 AbstractCegarLoop]: Abstraction has 912 states and 1162 transitions. [2020-12-23 15:54:07,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 15:54:07,930 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1162 transitions. [2020-12-23 15:54:07,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-12-23 15:54:07,932 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:07,932 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 15:54:08,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:54:08,147 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 15:54:08,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:08,147 INFO L82 PathProgramCache]: Analyzing trace with hash -453644734, now seen corresponding path program 2 times [2020-12-23 15:54:08,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:08,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138857524] [2020-12-23 15:54:08,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:08,172 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:08,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1608392643] [2020-12-23 15:54:08,174 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 15:54:08,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 15:54:08,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:54:08,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 15:54:08,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:08,992 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 15:54:08,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138857524] [2020-12-23 15:54:08,992 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:08,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608392643] [2020-12-23 15:54:08,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:54:08,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 15:54:08,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491070469] [2020-12-23 15:54:08,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 15:54:08,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:08,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 15:54:08,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-23 15:54:08,994 INFO L87 Difference]: Start difference. First operand 912 states and 1162 transitions. Second operand 9 states. [2020-12-23 15:54:09,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:09,126 INFO L93 Difference]: Finished difference Result 1781 states and 2286 transitions. [2020-12-23 15:54:09,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 15:54:09,127 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 182 [2020-12-23 15:54:09,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:09,131 INFO L225 Difference]: With dead ends: 1781 [2020-12-23 15:54:09,132 INFO L226 Difference]: Without dead ends: 918 [2020-12-23 15:54:09,133 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 15:54:09,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2020-12-23 15:54:09,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 918. [2020-12-23 15:54:09,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2020-12-23 15:54:09,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1168 transitions. [2020-12-23 15:54:09,171 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1168 transitions. Word has length 182 [2020-12-23 15:54:09,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:09,171 INFO L481 AbstractCegarLoop]: Abstraction has 918 states and 1168 transitions. [2020-12-23 15:54:09,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 15:54:09,171 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1168 transitions. [2020-12-23 15:54:09,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-12-23 15:54:09,173 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:09,174 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 15:54:09,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:54:09,388 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 15:54:09,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:09,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1986963428, now seen corresponding path program 3 times [2020-12-23 15:54:09,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:09,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260194041] [2020-12-23 15:54:09,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:09,410 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:09,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [759453965] [2020-12-23 15:54:09,410 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 15:54:09,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 15:54:09,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:54:09,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 15:54:09,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:10,319 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 15:54:10,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260194041] [2020-12-23 15:54:10,319 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:10,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759453965] [2020-12-23 15:54:10,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:54:10,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:54:10,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788187166] [2020-12-23 15:54:10,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:54:10,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:10,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:54:10,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:54:10,322 INFO L87 Difference]: Start difference. First operand 918 states and 1168 transitions. Second operand 4 states. [2020-12-23 15:54:10,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:10,908 INFO L93 Difference]: Finished difference Result 1509 states and 1921 transitions. [2020-12-23 15:54:10,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:54:10,908 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2020-12-23 15:54:10,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:10,912 INFO L225 Difference]: With dead ends: 1509 [2020-12-23 15:54:10,912 INFO L226 Difference]: Without dead ends: 732 [2020-12-23 15:54:10,914 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 15:54:10,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2020-12-23 15:54:10,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2020-12-23 15:54:10,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-12-23 15:54:10,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 909 transitions. [2020-12-23 15:54:10,947 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 909 transitions. Word has length 186 [2020-12-23 15:54:10,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:10,948 INFO L481 AbstractCegarLoop]: Abstraction has 732 states and 909 transitions. [2020-12-23 15:54:10,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:54:10,948 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 909 transitions. [2020-12-23 15:54:10,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-12-23 15:54:10,950 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:10,951 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 15:54:11,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:54:11,167 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 15:54:11,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:11,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1622468887, now seen corresponding path program 1 times [2020-12-23 15:54:11,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:11,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458517416] [2020-12-23 15:54:11,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:11,191 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:11,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1826004245] [2020-12-23 15:54:11,191 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 15:54:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:54:11,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-23 15:54:11,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:11,958 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 15:54:11,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458517416] [2020-12-23 15:54:11,959 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:11,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826004245] [2020-12-23 15:54:11,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:54:11,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-12-23 15:54:11,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276600598] [2020-12-23 15:54:11,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 15:54:11,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:11,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 15:54:11,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-23 15:54:11,961 INFO L87 Difference]: Start difference. First operand 732 states and 909 transitions. Second operand 10 states. [2020-12-23 15:54:12,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:12,088 INFO L93 Difference]: Finished difference Result 1418 states and 1775 transitions. [2020-12-23 15:54:12,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 15:54:12,089 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2020-12-23 15:54:12,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:12,092 INFO L225 Difference]: With dead ends: 1418 [2020-12-23 15:54:12,092 INFO L226 Difference]: Without dead ends: 736 [2020-12-23 15:54:12,093 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 15:54:12,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2020-12-23 15:54:12,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 736. [2020-12-23 15:54:12,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 736 states. [2020-12-23 15:54:12,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 913 transitions. [2020-12-23 15:54:12,122 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 913 transitions. Word has length 193 [2020-12-23 15:54:12,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:12,122 INFO L481 AbstractCegarLoop]: Abstraction has 736 states and 913 transitions. [2020-12-23 15:54:12,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 15:54:12,122 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 913 transitions. [2020-12-23 15:54:12,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-12-23 15:54:12,125 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:12,125 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 15:54:12,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-12-23 15:54:12,340 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 15:54:12,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:12,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1336921525, now seen corresponding path program 2 times [2020-12-23 15:54:12,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:12,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417112836] [2020-12-23 15:54:12,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:12,360 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:12,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1394108195] [2020-12-23 15:54:12,361 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 15:54:12,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 15:54:12,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:54:12,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 15:54:12,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:13,234 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 15:54:13,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417112836] [2020-12-23 15:54:13,234 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:13,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394108195] [2020-12-23 15:54:13,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:54:13,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-12-23 15:54:13,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874778506] [2020-12-23 15:54:13,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 15:54:13,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:13,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 15:54:13,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-23 15:54:13,236 INFO L87 Difference]: Start difference. First operand 736 states and 913 transitions. Second operand 11 states. [2020-12-23 15:54:13,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:13,420 INFO L93 Difference]: Finished difference Result 1425 states and 1782 transitions. [2020-12-23 15:54:13,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 15:54:13,421 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 197 [2020-12-23 15:54:13,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:13,425 INFO L225 Difference]: With dead ends: 1425 [2020-12-23 15:54:13,425 INFO L226 Difference]: Without dead ends: 740 [2020-12-23 15:54:13,426 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 15:54:13,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-12-23 15:54:13,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 740. [2020-12-23 15:54:13,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2020-12-23 15:54:13,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 917 transitions. [2020-12-23 15:54:13,458 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 917 transitions. Word has length 197 [2020-12-23 15:54:13,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:13,458 INFO L481 AbstractCegarLoop]: Abstraction has 740 states and 917 transitions. [2020-12-23 15:54:13,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 15:54:13,458 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 917 transitions. [2020-12-23 15:54:13,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-12-23 15:54:13,460 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:13,460 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 15:54:13,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-12-23 15:54:13,675 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 15:54:13,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:13,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1628837737, now seen corresponding path program 3 times [2020-12-23 15:54:13,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:13,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553232761] [2020-12-23 15:54:13,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:13,708 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:13,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [423053164] [2020-12-23 15:54:13,709 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