/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 16:00:13,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 16:00:13,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 16:00:13,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 16:00:13,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 16:00:13,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 16:00:13,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 16:00:13,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 16:00:13,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 16:00:13,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 16:00:13,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 16:00:13,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 16:00:13,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 16:00:13,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 16:00:13,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 16:00:13,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 16:00:13,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 16:00:13,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 16:00:13,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 16:00:13,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 16:00:13,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 16:00:13,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 16:00:13,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 16:00:13,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 16:00:13,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 16:00:13,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 16:00:13,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 16:00:13,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 16:00:13,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 16:00:13,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 16:00:13,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 16:00:13,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 16:00:13,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 16:00:13,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 16:00:13,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 16:00:13,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 16:00:13,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 16:00:13,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 16:00:13,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 16:00:13,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 16:00:13,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 16:00:13,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 16:00:13,178 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 16:00:13,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 16:00:13,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 16:00:13,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 16:00:13,181 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 16:00:13,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 16:00:13,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 16:00:13,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 16:00:13,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 16:00:13,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 16:00:13,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 16:00:13,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 16:00:13,183 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 16:00:13,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 16:00:13,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 16:00:13,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 16:00:13,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 16:00:13,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 16:00:13,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 16:00:13,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 16:00:13,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 16:00:13,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 16:00:13,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 16:00:13,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 16:00:13,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 16:00:13,185 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 16:00:13,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 16:00:13,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 16:00:13,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 16:00:13,586 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 16:00:13,587 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 16:00:13,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2020-12-23 16:00:13,675 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a430e7e09/9a431339d6f6459c8cdec48e0da272bb/FLAGbe159475d [2020-12-23 16:00:14,418 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 16:00:14,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2020-12-23 16:00:14,439 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a430e7e09/9a431339d6f6459c8cdec48e0da272bb/FLAGbe159475d [2020-12-23 16:00:14,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a430e7e09/9a431339d6f6459c8cdec48e0da272bb [2020-12-23 16:00:14,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 16:00:14,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 16:00:14,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 16:00:14,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 16:00:14,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 16:00:14,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:00:14" (1/1) ... [2020-12-23 16:00:14,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a334dd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:14, skipping insertion in model container [2020-12-23 16:00:14,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:00:14" (1/1) ... [2020-12-23 16:00:14,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 16:00:14,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 16:00:15,193 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],StructAccessExpression[IdentifierExpression[~user~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[60],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[56],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem37,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem37,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem38,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem38,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem39,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem39,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem40,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem40,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem41,],base],StructAccessExpression[IdentifierExpression[#t~mem41,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem43,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem43,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem56,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem56,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem57,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem57,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_bkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem69,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem69,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_ha_head~0,],base],StructAccessExpression[IdentifierExpression[~_ha_head~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_new_buckets~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem81,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem81,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem91,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem91,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_hh_nxt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_newbkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem117,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem117,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],base],StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem125,],base],StructAccessExpression[IdentifierExpression[#t~mem125,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem126,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem126,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem136,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem136,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] [2020-12-23 16:00:15,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:00:15,307 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 16:00:15,362 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],StructAccessExpression[IdentifierExpression[~user~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[60],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[56],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem37,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem37,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem38,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem38,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem39,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem39,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem40,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem40,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem41,],base],StructAccessExpression[IdentifierExpression[#t~mem41,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem43,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem43,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem56,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem56,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem57,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem57,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_bkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem69,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem69,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_ha_head~0,],base],StructAccessExpression[IdentifierExpression[~_ha_head~0,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~#_he_new_buckets~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem83,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem83,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem93,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem93,],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~mem120,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem120,],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~mem128,],base],StructAccessExpression[IdentifierExpression[#t~mem128,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem130,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem130,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem140,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem140,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] [2020-12-23 16:00:15,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:00:15,660 INFO L208 MainTranslator]: Completed translation [2020-12-23 16:00:15,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:15 WrapperNode [2020-12-23 16:00:15,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 16:00:15,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 16:00:15,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 16:00:15,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 16:00:15,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:15" (1/1) ... [2020-12-23 16:00:15,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:15" (1/1) ... [2020-12-23 16:00:15,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 16:00:15,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 16:00:15,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 16:00:15,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 16:00:15,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:15" (1/1) ... [2020-12-23 16:00:15,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:15" (1/1) ... [2020-12-23 16:00:15,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:15" (1/1) ... [2020-12-23 16:00:15,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:15" (1/1) ... [2020-12-23 16:00:15,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:15" (1/1) ... [2020-12-23 16:00:15,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:15" (1/1) ... [2020-12-23 16:00:15,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:15" (1/1) ... [2020-12-23 16:00:15,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 16:00:15,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 16:00:15,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 16:00:15,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 16:00:15,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 16:00:16,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 16:00:16,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 16:00:16,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 16:00:16,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 16:00:16,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 16:00:16,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 16:00:16,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 16:00:16,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 16:00:16,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 16:00:16,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 16:00:17,523 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 16:00:17,526 INFO L299 CfgBuilder]: Removed 63 assume(true) statements. [2020-12-23 16:00:17,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:00:17 BoogieIcfgContainer [2020-12-23 16:00:17,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 16:00:17,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 16:00:17,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 16:00:17,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 16:00:17,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:00:14" (1/3) ... [2020-12-23 16:00:17,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b5ebfa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:00:17, skipping insertion in model container [2020-12-23 16:00:17,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:00:15" (2/3) ... [2020-12-23 16:00:17,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b5ebfa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:00:17, skipping insertion in model container [2020-12-23 16:00:17,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:00:17" (3/3) ... [2020-12-23 16:00:17,539 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test1-1.i [2020-12-23 16:00:17,545 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 16:00:17,551 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-23 16:00:17,569 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-23 16:00:17,597 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 16:00:17,597 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 16:00:17,597 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 16:00:17,597 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 16:00:17,597 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 16:00:17,598 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 16:00:17,598 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 16:00:17,598 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 16:00:17,617 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2020-12-23 16:00:17,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 16:00:17,623 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:00:17,623 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:00:17,624 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:00:17,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:00:17,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1407226647, now seen corresponding path program 1 times [2020-12-23 16:00:17,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:00:17,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925991792] [2020-12-23 16:00:17,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:00:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:00:17,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:00:17,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925991792] [2020-12-23 16:00:17,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:00:17,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 16:00:17,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569566169] [2020-12-23 16:00:17,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 16:00:17,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:00:17,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 16:00:17,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 16:00:17,811 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 2 states. [2020-12-23 16:00:17,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:00:17,885 INFO L93 Difference]: Finished difference Result 274 states and 440 transitions. [2020-12-23 16:00:17,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 16:00:17,887 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-23 16:00:17,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:00:17,900 INFO L225 Difference]: With dead ends: 274 [2020-12-23 16:00:17,900 INFO L226 Difference]: Without dead ends: 134 [2020-12-23 16:00:17,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 16:00:17,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-12-23 16:00:17,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-12-23 16:00:17,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-12-23 16:00:17,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 172 transitions. [2020-12-23 16:00:17,955 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 172 transitions. Word has length 8 [2020-12-23 16:00:17,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:00:17,956 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 172 transitions. [2020-12-23 16:00:17,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 16:00:17,956 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 172 transitions. [2020-12-23 16:00:17,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 16:00:17,957 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:00:17,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:00:17,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 16:00:17,958 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:00:17,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:00:17,959 INFO L82 PathProgramCache]: Analyzing trace with hash 569968710, now seen corresponding path program 1 times [2020-12-23 16:00:17,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:00:17,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689035416] [2020-12-23 16:00:17,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:00:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:00:18,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:00:18,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689035416] [2020-12-23 16:00:18,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:00:18,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:00:18,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019074689] [2020-12-23 16:00:18,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:00:18,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:00:18,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:00:18,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:00:18,080 INFO L87 Difference]: Start difference. First operand 134 states and 172 transitions. Second operand 3 states. [2020-12-23 16:00:18,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:00:18,153 INFO L93 Difference]: Finished difference Result 266 states and 342 transitions. [2020-12-23 16:00:18,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:00:18,156 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-23 16:00:18,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:00:18,160 INFO L225 Difference]: With dead ends: 266 [2020-12-23 16:00:18,160 INFO L226 Difference]: Without dead ends: 221 [2020-12-23 16:00:18,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:00:18,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-12-23 16:00:18,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 135. [2020-12-23 16:00:18,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-12-23 16:00:18,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 173 transitions. [2020-12-23 16:00:18,195 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 173 transitions. Word has length 8 [2020-12-23 16:00:18,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:00:18,195 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 173 transitions. [2020-12-23 16:00:18,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:00:18,196 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 173 transitions. [2020-12-23 16:00:18,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-23 16:00:18,202 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:00:18,202 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:00:18,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 16:00:18,203 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:00:18,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:00:18,204 INFO L82 PathProgramCache]: Analyzing trace with hash -781067853, now seen corresponding path program 1 times [2020-12-23 16:00:18,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:00:18,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947229895] [2020-12-23 16:00:18,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:00:18,256 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:00:18,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509508331] [2020-12-23 16:00:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:00:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:00:18,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:00:18,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:00:18,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:00:18,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947229895] [2020-12-23 16:00:18,677 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:00:18,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509508331] [2020-12-23 16:00:18,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:00:18,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:00:18,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208025276] [2020-12-23 16:00:18,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:00:18,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:00:18,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:00:18,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:00:18,681 INFO L87 Difference]: Start difference. First operand 135 states and 173 transitions. Second operand 3 states. [2020-12-23 16:00:18,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:00:18,780 INFO L93 Difference]: Finished difference Result 288 states and 374 transitions. [2020-12-23 16:00:18,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:00:18,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2020-12-23 16:00:18,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:00:18,782 INFO L225 Difference]: With dead ends: 288 [2020-12-23 16:00:18,783 INFO L226 Difference]: Without dead ends: 156 [2020-12-23 16:00:18,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:00:18,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-12-23 16:00:18,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 155. [2020-12-23 16:00:18,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-12-23 16:00:18,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 193 transitions. [2020-12-23 16:00:18,794 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 193 transitions. Word has length 59 [2020-12-23 16:00:18,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:00:18,794 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 193 transitions. [2020-12-23 16:00:18,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:00:18,795 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 193 transitions. [2020-12-23 16:00:18,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-23 16:00:18,797 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:00:18,797 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:00:19,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-23 16:00:19,009 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:00:19,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:00:19,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1269877969, now seen corresponding path program 1 times [2020-12-23 16:00:19,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:00:19,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888834034] [2020-12-23 16:00:19,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:00:19,044 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:00:19,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [651158313] [2020-12-23 16:00:19,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:00:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:00:19,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:00:19,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:00:19,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:00:19,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888834034] [2020-12-23 16:00:19,326 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:00:19,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651158313] [2020-12-23 16:00:19,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:00:19,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:00:19,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374167225] [2020-12-23 16:00:19,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:00:19,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:00:19,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:00:19,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:00:19,328 INFO L87 Difference]: Start difference. First operand 155 states and 193 transitions. Second operand 4 states. [2020-12-23 16:00:19,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:00:19,421 INFO L93 Difference]: Finished difference Result 299 states and 375 transitions. [2020-12-23 16:00:19,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:00:19,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-12-23 16:00:19,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:00:19,423 INFO L225 Difference]: With dead ends: 299 [2020-12-23 16:00:19,423 INFO L226 Difference]: Without dead ends: 147 [2020-12-23 16:00:19,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:00:19,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-12-23 16:00:19,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2020-12-23 16:00:19,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-12-23 16:00:19,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 172 transitions. [2020-12-23 16:00:19,432 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 172 transitions. Word has length 59 [2020-12-23 16:00:19,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:00:19,433 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 172 transitions. [2020-12-23 16:00:19,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:00:19,433 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 172 transitions. [2020-12-23 16:00:19,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-23 16:00:19,435 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:00:19,435 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:00:19,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:00:19,650 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:00:19,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:00:19,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1890386365, now seen corresponding path program 1 times [2020-12-23 16:00:19,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:00:19,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351766659] [2020-12-23 16:00:19,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:00:19,668 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:00:19,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2112246842] [2020-12-23 16:00:19,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:00:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:00:19,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:00:19,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:00:19,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:00:19,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351766659] [2020-12-23 16:00:19,959 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:00:19,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112246842] [2020-12-23 16:00:19,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:00:19,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-12-23 16:00:19,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922113981] [2020-12-23 16:00:19,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:00:19,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:00:19,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:00:19,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:00:19,962 INFO L87 Difference]: Start difference. First operand 141 states and 172 transitions. Second operand 4 states. [2020-12-23 16:00:19,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:00:19,996 INFO L93 Difference]: Finished difference Result 371 states and 453 transitions. [2020-12-23 16:00:19,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:00:19,997 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-12-23 16:00:19,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:00:19,999 INFO L225 Difference]: With dead ends: 371 [2020-12-23 16:00:19,999 INFO L226 Difference]: Without dead ends: 326 [2020-12-23 16:00:20,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:00:20,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-12-23 16:00:20,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 234. [2020-12-23 16:00:20,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-12-23 16:00:20,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 285 transitions. [2020-12-23 16:00:20,012 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 285 transitions. Word has length 59 [2020-12-23 16:00:20,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:00:20,012 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 285 transitions. [2020-12-23 16:00:20,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:00:20,012 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 285 transitions. [2020-12-23 16:00:20,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-23 16:00:20,015 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:00:20,015 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:00:20,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:00:20,226 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:00:20,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:00:20,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1357916902, now seen corresponding path program 2 times [2020-12-23 16:00:20,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:00:20,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686905697] [2020-12-23 16:00:20,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:00:20,247 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:00:20,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1863081464] [2020-12-23 16:00:20,249 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:00:20,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 16:00:20,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 16:00:20,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 16:00:20,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:00:20,574 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-12-23 16:00:20,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686905697] [2020-12-23 16:00:20,575 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:00:20,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863081464] [2020-12-23 16:00:20,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:00:20,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:00:20,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299696614] [2020-12-23 16:00:20,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:00:20,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:00:20,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:00:20,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:00:20,578 INFO L87 Difference]: Start difference. First operand 234 states and 285 transitions. Second operand 4 states. [2020-12-23 16:00:20,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:00:20,759 INFO L93 Difference]: Finished difference Result 410 states and 504 transitions. [2020-12-23 16:00:20,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:00:20,759 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2020-12-23 16:00:20,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:00:20,761 INFO L225 Difference]: With dead ends: 410 [2020-12-23 16:00:20,761 INFO L226 Difference]: Without dead ends: 232 [2020-12-23 16:00:20,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:00:20,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-12-23 16:00:20,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2020-12-23 16:00:20,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-12-23 16:00:20,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 282 transitions. [2020-12-23 16:00:20,771 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 282 transitions. Word has length 110 [2020-12-23 16:00:20,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:00:20,772 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 282 transitions. [2020-12-23 16:00:20,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:00:20,772 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 282 transitions. [2020-12-23 16:00:20,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-23 16:00:20,774 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:00:20,774 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:00:20,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:00:20,990 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:00:20,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:00:20,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1177328342, now seen corresponding path program 1 times [2020-12-23 16:00:20,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:00:20,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310472690] [2020-12-23 16:00:20,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:00:21,028 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:00:21,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [273792777] [2020-12-23 16:00:21,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:00:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:00:21,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:00:21,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:00:21,401 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-12-23 16:00:21,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310472690] [2020-12-23 16:00:21,402 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:00:21,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273792777] [2020-12-23 16:00:21,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:00:21,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:00:21,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848712976] [2020-12-23 16:00:21,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:00:21,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:00:21,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:00:21,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:00:21,404 INFO L87 Difference]: Start difference. First operand 232 states and 282 transitions. Second operand 3 states. [2020-12-23 16:00:21,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:00:21,430 INFO L93 Difference]: Finished difference Result 418 states and 516 transitions. [2020-12-23 16:00:21,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:00:21,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-12-23 16:00:21,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:00:21,432 INFO L225 Difference]: With dead ends: 418 [2020-12-23 16:00:21,432 INFO L226 Difference]: Without dead ends: 236 [2020-12-23 16:00:21,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:00:21,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-12-23 16:00:21,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2020-12-23 16:00:21,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-12-23 16:00:21,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 286 transitions. [2020-12-23 16:00:21,441 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 286 transitions. Word has length 117 [2020-12-23 16:00:21,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:00:21,441 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 286 transitions. [2020-12-23 16:00:21,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:00:21,441 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 286 transitions. [2020-12-23 16:00:21,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-12-23 16:00:21,443 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:00:21,443 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 16:00:21,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-23 16:00:21,657 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:00:21,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:00:21,658 INFO L82 PathProgramCache]: Analyzing trace with hash 375393205, now seen corresponding path program 1 times [2020-12-23 16:00:21,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:00:21,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472580136] [2020-12-23 16:00:21,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:00:21,690 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:00:21,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1003890886] [2020-12-23 16:00:21,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:00:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:00:21,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 16:00:21,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:00:22,084 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-23 16:00:22,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472580136] [2020-12-23 16:00:22,085 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:00:22,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003890886] [2020-12-23 16:00:22,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:00:22,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-12-23 16:00:22,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647548215] [2020-12-23 16:00:22,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:00:22,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:00:22,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:00:22,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:00:22,088 INFO L87 Difference]: Start difference. First operand 236 states and 286 transitions. Second operand 4 states. [2020-12-23 16:00:22,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:00:22,123 INFO L93 Difference]: Finished difference Result 425 states and 523 transitions. [2020-12-23 16:00:22,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:00:22,124 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2020-12-23 16:00:22,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:00:22,126 INFO L225 Difference]: With dead ends: 425 [2020-12-23 16:00:22,126 INFO L226 Difference]: Without dead ends: 240 [2020-12-23 16:00:22,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:00:22,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-12-23 16:00:22,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2020-12-23 16:00:22,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-12-23 16:00:22,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 290 transitions. [2020-12-23 16:00:22,136 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 290 transitions. Word has length 119 [2020-12-23 16:00:22,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:00:22,136 INFO L481 AbstractCegarLoop]: Abstraction has 240 states and 290 transitions. [2020-12-23 16:00:22,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:00:22,137 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 290 transitions. [2020-12-23 16:00:22,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-12-23 16:00:22,138 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:00:22,138 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:00:22,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:00:22,352 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:00:22,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:00:22,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1447349194, now seen corresponding path program 2 times [2020-12-23 16:00:22,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:00:22,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701964904] [2020-12-23 16:00:22,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:00:22,370 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:00:22,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1917524584] [2020-12-23 16:00:22,371 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:00:22,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 16:00:22,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 16:00:22,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 16:00:22,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:00:22,729 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-12-23 16:00:22,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701964904] [2020-12-23 16:00:22,729 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:00:22,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917524584] [2020-12-23 16:00:22,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:00:22,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-12-23 16:00:22,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004261527] [2020-12-23 16:00:22,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 16:00:22,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:00:22,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 16:00:22,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:00:22,732 INFO L87 Difference]: Start difference. First operand 240 states and 290 transitions. Second operand 5 states. [2020-12-23 16:00:22,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:00:22,781 INFO L93 Difference]: Finished difference Result 432 states and 530 transitions. [2020-12-23 16:00:22,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 16:00:22,782 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-12-23 16:00:22,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:00:22,784 INFO L225 Difference]: With dead ends: 432 [2020-12-23 16:00:22,784 INFO L226 Difference]: Without dead ends: 244 [2020-12-23 16:00:22,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:00:22,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-12-23 16:00:22,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2020-12-23 16:00:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-12-23 16:00:22,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 294 transitions. [2020-12-23 16:00:22,812 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 294 transitions. Word has length 121 [2020-12-23 16:00:22,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:00:22,812 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 294 transitions. [2020-12-23 16:00:22,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 16:00:22,812 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 294 transitions. [2020-12-23 16:00:22,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-12-23 16:00:22,814 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:00:22,814 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:00:23,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:00:23,031 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:00:23,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:00:23,032 INFO L82 PathProgramCache]: Analyzing trace with hash 414988629, now seen corresponding path program 3 times [2020-12-23 16:00:23,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:00:23,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167264306] [2020-12-23 16:00:23,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:00:23,049 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:00:23,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586264195] [2020-12-23 16:00:23,050 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 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