/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_JEN_test2-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 16:09:48,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 16:09:48,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 16:09:48,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-23 16:09:48,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 16:09:48,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 16:09:48,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 16:09:48,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 16:09:48,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 16:09:48,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 16:09:48,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 16:09:48,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 16:09:48,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 16:09:48,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 16:09:48,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 16:09:48,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 16:09:48,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 16:09:48,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 16:09:48,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 16:09:48,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 16:09:48,375 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 16:09:48,402 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 16:09:48,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 16:09:48,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 16:09:48,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 16:09:48,405 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 16:09:48,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 16:09:48,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 16:09:48,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 16:09:48,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 16:09:48,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 16:09:48,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 16:09:48,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 16:09:48,407 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 16:09:48,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 16:09:48,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 16:09:48,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 16:09:48,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 16:09:48,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 16:09:48,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 16:09:48,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 16:09:48,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 16:09:48,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 16:09:48,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 16:09:48,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 16:09:48,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 16:09:48,410 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 16:09:48,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 16:09:48,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 16:09:48,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 16:09:48,847 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 16:09:48,848 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 16:09:48,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2020-12-23 16:09:48,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d48306b7d/d87b425edcdc413b9f5bb3643cdb858a/FLAGce7e0dc0c [2020-12-23 16:09:49,696 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 16:09:49,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2020-12-23 16:09:49,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d48306b7d/d87b425edcdc413b9f5bb3643cdb858a/FLAGce7e0dc0c [2020-12-23 16:09:49,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d48306b7d/d87b425edcdc413b9f5bb3643cdb858a [2020-12-23 16:09:49,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 16:09:49,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 16:09:49,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 16:09:49,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 16:09:49,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 16:09:49,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:09:49" (1/1) ... [2020-12-23 16:09:49,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9297125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:49, skipping insertion in model container [2020-12-23 16:09:49,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:09:49" (1/1) ... [2020-12-23 16:09:49,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 16:09:49,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 16:09:50,503 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_JEN_test2-1.i[37019,37032] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],StructAccessExpression[IdentifierExpression[~user~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[60],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[56],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem37,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem37,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem38,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem38,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem39,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem39,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem40,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem40,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem41,],base],StructAccessExpression[IdentifierExpression[#t~mem41,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem43,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem43,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem56,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem56,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem57,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem57,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_bkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem69,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem69,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_ha_head~0,],base],StructAccessExpression[IdentifierExpression[~_ha_head~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_new_buckets~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem81,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem81,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem91,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem91,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_hh_nxt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_newbkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem117,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem117,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],base],StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem125,],base],StructAccessExpression[IdentifierExpression[#t~mem125,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem126,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem126,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem136,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem136,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~1,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~1,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_bkt~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] [2020-12-23 16:09:50,672 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_JEN_test2-1.i[47352,47365] [2020-12-23 16:09:50,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:09:50,693 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 16:09:50,733 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_JEN_test2-1.i[37019,37032] left hand side expression in assignment: address: IdentifierExpression[~#i~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],StructAccessExpression[IdentifierExpression[~user~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[60],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[56],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem42,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem42,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem43,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem43,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem44,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem44,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem45,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem45,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem46,],base],StructAccessExpression[IdentifierExpression[#t~mem46,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem48,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem48,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem61,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem61,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem62,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem62,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_bkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem74,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem74,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_ha_head~0,],base],StructAccessExpression[IdentifierExpression[~_ha_head~0,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~#_he_new_buckets~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem88,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem88,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem98,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem98,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_hh_nxt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_newbkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem125,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem125,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],base],StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem133,],base],StructAccessExpression[IdentifierExpression[#t~mem133,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem135,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem135,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem145,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem145,],offset]]]] left hand side expression in assignment: address: IdentifierExpression[~#i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~1,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~1,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_bkt~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] [2020-12-23 16:09:50,854 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_JEN_test2-1.i[47352,47365] [2020-12-23 16:09:50,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:09:51,001 INFO L208 MainTranslator]: Completed translation [2020-12-23 16:09:51,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51 WrapperNode [2020-12-23 16:09:51,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 16:09:51,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 16:09:51,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 16:09:51,007 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 16:09:51,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ... [2020-12-23 16:09:51,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ... [2020-12-23 16:09:51,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 16:09:51,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 16:09:51,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 16:09:51,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 16:09:51,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ... [2020-12-23 16:09:51,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ... [2020-12-23 16:09:51,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ... [2020-12-23 16:09:51,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ... [2020-12-23 16:09:51,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ... [2020-12-23 16:09:51,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ... [2020-12-23 16:09:51,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ... [2020-12-23 16:09:51,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 16:09:51,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 16:09:51,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 16:09:51,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 16:09:51,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 16:09:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 16:09:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-12-23 16:09:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 16:09:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 16:09:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 16:09:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 16:09:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 16:09:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 16:09:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 16:09:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 16:09:51,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 16:09:53,494 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 16:09:53,494 INFO L299 CfgBuilder]: Removed 76 assume(true) statements. [2020-12-23 16:09:53,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:09:53 BoogieIcfgContainer [2020-12-23 16:09:53,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 16:09:53,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 16:09:53,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 16:09:53,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 16:09:53,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:09:49" (1/3) ... [2020-12-23 16:09:53,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3489221f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:09:53, skipping insertion in model container [2020-12-23 16:09:53,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:09:51" (2/3) ... [2020-12-23 16:09:53,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3489221f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:09:53, skipping insertion in model container [2020-12-23 16:09:53,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:09:53" (3/3) ... [2020-12-23 16:09:53,506 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test2-1.i [2020-12-23 16:09:53,513 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 16:09:53,518 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-23 16:09:53,537 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-23 16:09:53,563 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 16:09:53,564 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 16:09:53,564 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 16:09:53,564 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 16:09:53,564 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 16:09:53,565 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 16:09:53,565 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 16:09:53,565 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 16:09:53,586 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2020-12-23 16:09:53,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 16:09:53,592 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:09:53,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:09:53,593 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:09:53,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:09:53,600 INFO L82 PathProgramCache]: Analyzing trace with hash 239231399, now seen corresponding path program 1 times [2020-12-23 16:09:53,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:09:53,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535827052] [2020-12-23 16:09:53,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:09:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:09:53,778 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 16:09:53,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535827052] [2020-12-23 16:09:53,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:09:53,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 16:09:53,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252368365] [2020-12-23 16:09:53,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 16:09:53,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:09:53,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 16:09:53,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 16:09:53,805 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 2 states. [2020-12-23 16:09:53,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:09:53,848 INFO L93 Difference]: Finished difference Result 352 states and 584 transitions. [2020-12-23 16:09:53,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 16:09:53,850 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-23 16:09:53,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:09:53,862 INFO L225 Difference]: With dead ends: 352 [2020-12-23 16:09:53,863 INFO L226 Difference]: Without dead ends: 173 [2020-12-23 16:09:53,867 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 16:09:53,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-12-23 16:09:53,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2020-12-23 16:09:53,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-12-23 16:09:53,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 225 transitions. [2020-12-23 16:09:53,951 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 225 transitions. Word has length 9 [2020-12-23 16:09:53,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:09:53,951 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 225 transitions. [2020-12-23 16:09:53,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 16:09:53,952 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 225 transitions. [2020-12-23 16:09:53,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-23 16:09:53,956 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:09:53,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:09:53,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 16:09:53,957 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:09:53,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:09:53,959 INFO L82 PathProgramCache]: Analyzing trace with hash 627334177, now seen corresponding path program 1 times [2020-12-23 16:09:53,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:09:53,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653741214] [2020-12-23 16:09:53,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:09:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:09:54,101 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 16:09:54,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653741214] [2020-12-23 16:09:54,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:09:54,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:09:54,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495928188] [2020-12-23 16:09:54,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:09:54,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:09:54,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:09:54,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:09:54,106 INFO L87 Difference]: Start difference. First operand 173 states and 225 transitions. Second operand 4 states. [2020-12-23 16:09:54,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:09:54,612 INFO L93 Difference]: Finished difference Result 377 states and 490 transitions. [2020-12-23 16:09:54,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:09:54,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-12-23 16:09:54,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:09:54,616 INFO L225 Difference]: With dead ends: 377 [2020-12-23 16:09:54,616 INFO L226 Difference]: Without dead ends: 294 [2020-12-23 16:09:54,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:09:54,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-12-23 16:09:54,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 175. [2020-12-23 16:09:54,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-12-23 16:09:54,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 227 transitions. [2020-12-23 16:09:54,634 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 227 transitions. Word has length 44 [2020-12-23 16:09:54,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:09:54,634 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 227 transitions. [2020-12-23 16:09:54,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:09:54,634 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 227 transitions. [2020-12-23 16:09:54,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-23 16:09:54,638 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:09:54,638 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:09:54,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 16:09:54,639 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:09:54,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:09:54,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1103505073, now seen corresponding path program 1 times [2020-12-23 16:09:54,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:09:54,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538468448] [2020-12-23 16:09:54,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:09:54,679 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:09:54,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2016353135] [2020-12-23 16:09:54,680 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 16:09:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:09:54,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:09:54,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:09:55,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:09:55,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538468448] [2020-12-23 16:09:55,053 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:09:55,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016353135] [2020-12-23 16:09:55,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:09:55,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:09:55,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732791240] [2020-12-23 16:09:55,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:09:55,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:09:55,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:09:55,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:09:55,056 INFO L87 Difference]: Start difference. First operand 175 states and 227 transitions. Second operand 3 states. [2020-12-23 16:09:55,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:09:55,152 INFO L93 Difference]: Finished difference Result 367 states and 481 transitions. [2020-12-23 16:09:55,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:09:55,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-12-23 16:09:55,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:09:55,154 INFO L225 Difference]: With dead ends: 367 [2020-12-23 16:09:55,154 INFO L226 Difference]: Without dead ends: 196 [2020-12-23 16:09:55,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 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 16:09:55,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-12-23 16:09:55,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 195. [2020-12-23 16:09:55,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-12-23 16:09:55,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 247 transitions. [2020-12-23 16:09:55,166 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 247 transitions. Word has length 96 [2020-12-23 16:09:55,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:09:55,166 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 247 transitions. [2020-12-23 16:09:55,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:09:55,167 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 247 transitions. [2020-12-23 16:09:55,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-23 16:09:55,170 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:09:55,170 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:09:55,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-23 16:09:55,385 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:09:55,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:09:55,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1343744819, now seen corresponding path program 1 times [2020-12-23 16:09:55,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:09:55,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569632255] [2020-12-23 16:09:55,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:09:55,409 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:09:55,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [844816875] [2020-12-23 16:09:55,410 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 16:09:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:09:55,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:09:55,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:09:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 16:09:55,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569632255] [2020-12-23 16:09:55,791 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:09:55,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844816875] [2020-12-23 16:09:55,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:09:55,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:09:55,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535116031] [2020-12-23 16:09:55,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:09:55,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:09:55,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:09:55,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:09:55,794 INFO L87 Difference]: Start difference. First operand 195 states and 247 transitions. Second operand 3 states. [2020-12-23 16:09:55,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:09:55,899 INFO L93 Difference]: Finished difference Result 298 states and 384 transitions. [2020-12-23 16:09:55,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:09:55,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-12-23 16:09:55,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:09:55,902 INFO L225 Difference]: With dead ends: 298 [2020-12-23 16:09:55,902 INFO L226 Difference]: Without dead ends: 216 [2020-12-23 16:09:55,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 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 16:09:55,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-12-23 16:09:55,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 215. [2020-12-23 16:09:55,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-12-23 16:09:55,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 267 transitions. [2020-12-23 16:09:55,920 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 267 transitions. Word has length 96 [2020-12-23 16:09:55,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:09:55,922 INFO L481 AbstractCegarLoop]: Abstraction has 215 states and 267 transitions. [2020-12-23 16:09:55,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:09:55,922 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 267 transitions. [2020-12-23 16:09:55,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-23 16:09:55,932 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:09:55,933 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:09:56,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:09:56,148 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:09:56,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:09:56,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1663949871, now seen corresponding path program 1 times [2020-12-23 16:09:56,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:09:56,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658458174] [2020-12-23 16:09:56,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:09:56,171 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:09:56,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1741499754] [2020-12-23 16:09:56,172 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 16:09:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:09:56,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:09:56,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:09:56,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:09:56,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658458174] [2020-12-23 16:09:56,553 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:09:56,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741499754] [2020-12-23 16:09:56,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:09:56,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:09:56,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025758065] [2020-12-23 16:09:56,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:09:56,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:09:56,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:09:56,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:09:56,556 INFO L87 Difference]: Start difference. First operand 215 states and 267 transitions. Second operand 4 states. [2020-12-23 16:09:56,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:09:56,653 INFO L93 Difference]: Finished difference Result 418 states and 522 transitions. [2020-12-23 16:09:56,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:09:56,654 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 96 [2020-12-23 16:09:56,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:09:56,656 INFO L225 Difference]: With dead ends: 418 [2020-12-23 16:09:56,656 INFO L226 Difference]: Without dead ends: 207 [2020-12-23 16:09:56,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 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 16:09:56,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-12-23 16:09:56,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 201. [2020-12-23 16:09:56,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-12-23 16:09:56,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 246 transitions. [2020-12-23 16:09:56,664 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 246 transitions. Word has length 96 [2020-12-23 16:09:56,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:09:56,665 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 246 transitions. [2020-12-23 16:09:56,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:09:56,665 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 246 transitions. [2020-12-23 16:09:56,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-23 16:09:56,666 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:09:56,666 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:09:56,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:09:56,882 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:09:56,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:09:56,883 INFO L82 PathProgramCache]: Analyzing trace with hash 569918303, now seen corresponding path program 1 times [2020-12-23 16:09:56,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:09:56,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634215706] [2020-12-23 16:09:56,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:09:56,912 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:09:56,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843363680] [2020-12-23 16:09:56,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:09:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:09:57,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:09:57,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:09:57,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 16:09:57,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634215706] [2020-12-23 16:09:57,253 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:09:57,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843363680] [2020-12-23 16:09:57,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:09:57,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:09:57,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352406852] [2020-12-23 16:09:57,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:09:57,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:09:57,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:09:57,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:09:57,255 INFO L87 Difference]: Start difference. First operand 201 states and 246 transitions. Second operand 4 states. [2020-12-23 16:09:57,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:09:57,349 INFO L93 Difference]: Finished difference Result 295 states and 364 transitions. [2020-12-23 16:09:57,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:09:57,349 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 96 [2020-12-23 16:09:57,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:09:57,351 INFO L225 Difference]: With dead ends: 295 [2020-12-23 16:09:57,351 INFO L226 Difference]: Without dead ends: 193 [2020-12-23 16:09:57,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 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 16:09:57,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-12-23 16:09:57,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 187. [2020-12-23 16:09:57,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-12-23 16:09:57,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 225 transitions. [2020-12-23 16:09:57,358 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 225 transitions. Word has length 96 [2020-12-23 16:09:57,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:09:57,358 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 225 transitions. [2020-12-23 16:09:57,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:09:57,359 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 225 transitions. [2020-12-23 16:09:57,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-23 16:09:57,360 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:09:57,360 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:09:57,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:09:57,575 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:09:57,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:09:57,576 INFO L82 PathProgramCache]: Analyzing trace with hash -312930543, now seen corresponding path program 1 times [2020-12-23 16:09:57,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:09:57,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191324055] [2020-12-23 16:09:57,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:09:57,596 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:09:57,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2124909750] [2020-12-23 16:09:57,597 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 16:09:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:09:57,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 16:09:57,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:09:57,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:09:57,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191324055] [2020-12-23 16:09:57,953 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:09:57,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124909750] [2020-12-23 16:09:57,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:09:57,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:09:57,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936067481] [2020-12-23 16:09:57,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:09:57,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:09:57,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:09:57,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:09:57,956 INFO L87 Difference]: Start difference. First operand 187 states and 225 transitions. Second operand 3 states. [2020-12-23 16:09:58,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:09:58,015 INFO L93 Difference]: Finished difference Result 486 states and 579 transitions. [2020-12-23 16:09:58,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:09:58,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-12-23 16:09:58,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:09:58,018 INFO L225 Difference]: With dead ends: 486 [2020-12-23 16:09:58,018 INFO L226 Difference]: Without dead ends: 303 [2020-12-23 16:09:58,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 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 16:09:58,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-12-23 16:09:58,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 291. [2020-12-23 16:09:58,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-12-23 16:09:58,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 350 transitions. [2020-12-23 16:09:58,028 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 350 transitions. Word has length 96 [2020-12-23 16:09:58,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:09:58,029 INFO L481 AbstractCegarLoop]: Abstraction has 291 states and 350 transitions. [2020-12-23 16:09:58,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:09:58,029 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 350 transitions. [2020-12-23 16:09:58,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-23 16:09:58,030 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:09:58,030 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:09:58,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-23 16:09:58,244 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:09:58,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:09:58,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1090926304, now seen corresponding path program 1 times [2020-12-23 16:09:58,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:09:58,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386240913] [2020-12-23 16:09:58,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:09:58,264 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:09:58,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1205929938] [2020-12-23 16:09:58,265 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 16:09:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:09:58,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:09:58,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:09:58,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:09:58,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386240913] [2020-12-23 16:09:58,609 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:09:58,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205929938] [2020-12-23 16:09:58,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:09:58,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:09:58,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072958283] [2020-12-23 16:09:58,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:09:58,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:09:58,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:09:58,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:09:58,612 INFO L87 Difference]: Start difference. First operand 291 states and 350 transitions. Second operand 3 states. [2020-12-23 16:09:58,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:09:58,665 INFO L93 Difference]: Finished difference Result 536 states and 651 transitions. [2020-12-23 16:09:58,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:09:58,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-12-23 16:09:58,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:09:58,667 INFO L225 Difference]: With dead ends: 536 [2020-12-23 16:09:58,668 INFO L226 Difference]: Without dead ends: 293 [2020-12-23 16:09:58,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 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 16:09:58,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-12-23 16:09:58,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2020-12-23 16:09:58,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-12-23 16:09:58,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 352 transitions. [2020-12-23 16:09:58,679 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 352 transitions. Word has length 103 [2020-12-23 16:09:58,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:09:58,680 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 352 transitions. [2020-12-23 16:09:58,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:09:58,680 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 352 transitions. [2020-12-23 16:09:58,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-23 16:09:58,681 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:09:58,681 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:09:58,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:09:58,896 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:09:58,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:09:58,897 INFO L82 PathProgramCache]: Analyzing trace with hash 77446145, now seen corresponding path program 1 times [2020-12-23 16:09:58,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:09:58,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110213176] [2020-12-23 16:09:58,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:09:58,927 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:09:58,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992209278] [2020-12-23 16:09:58,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:09:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:09:59,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 16:09:59,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:09:59,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 16:09:59,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110213176] [2020-12-23 16:09:59,268 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:09:59,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992209278] [2020-12-23 16:09:59,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:09:59,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-12-23 16:09:59,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699601844] [2020-12-23 16:09:59,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:09:59,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:09:59,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:09:59,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:09:59,270 INFO L87 Difference]: Start difference. First operand 293 states and 352 transitions. Second operand 4 states. [2020-12-23 16:09:59,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:09:59,308 INFO L93 Difference]: Finished difference Result 540 states and 655 transitions. [2020-12-23 16:09:59,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:09:59,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2020-12-23 16:09:59,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:09:59,310 INFO L225 Difference]: With dead ends: 540 [2020-12-23 16:09:59,311 INFO L226 Difference]: Without dead ends: 295 [2020-12-23 16:09:59,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 102 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 16:09:59,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-12-23 16:09:59,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2020-12-23 16:09:59,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-12-23 16:09:59,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 354 transitions. [2020-12-23 16:09:59,321 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 354 transitions. Word has length 105 [2020-12-23 16:09:59,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:09:59,322 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 354 transitions. [2020-12-23 16:09:59,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:09:59,322 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 354 transitions. [2020-12-23 16:09:59,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-23 16:09:59,323 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:09:59,323 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:09:59,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:09:59,538 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:09:59,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:09:59,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1213198784, now seen corresponding path program 2 times [2020-12-23 16:09:59,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:09:59,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780598943] [2020-12-23 16:09:59,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:09:59,568 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:09:59,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193510993] [2020-12-23 16:09:59,570 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:09:59,878 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 16:09:59,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 16:09:59,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 16:09:59,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:10:00,029 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-23 16:10:00,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780598943] [2020-12-23 16:10:00,030 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:10:00,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193510993] [2020-12-23 16:10:00,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:10:00,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-12-23 16:10:00,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67582941] [2020-12-23 16:10:00,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 16:10:00,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:10:00,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 16:10:00,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:10:00,032 INFO L87 Difference]: Start difference. First operand 295 states and 354 transitions. Second operand 5 states. [2020-12-23 16:10:00,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:10:00,079 INFO L93 Difference]: Finished difference Result 544 states and 659 transitions. [2020-12-23 16:10:00,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 16:10:00,080 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-12-23 16:10:00,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:10:00,082 INFO L225 Difference]: With dead ends: 544 [2020-12-23 16:10:00,082 INFO L226 Difference]: Without dead ends: 297 [2020-12-23 16:10:00,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:10:00,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-12-23 16:10:00,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2020-12-23 16:10:00,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-12-23 16:10:00,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 356 transitions. [2020-12-23 16:10:00,093 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 356 transitions. Word has length 107 [2020-12-23 16:10:00,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:10:00,093 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 356 transitions. [2020-12-23 16:10:00,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 16:10:00,093 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 356 transitions. [2020-12-23 16:10:00,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-23 16:10:00,094 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:10:00,095 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:10:00,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-23 16:10:00,311 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:10:00,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:10:00,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1565711009, now seen corresponding path program 3 times [2020-12-23 16:10:00,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:10:00,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273214323] [2020-12-23 16:10:00,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:10:00,326 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:10:00,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [117538632] [2020-12-23 16:10:00,327 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:10:00,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 16:10:00,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 16:10:00,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 16:10:00,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:10:00,796 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-23 16:10:00,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273214323] [2020-12-23 16:10:00,796 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:10:00,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117538632] [2020-12-23 16:10:00,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:10:00,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:10:00,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362330128] [2020-12-23 16:10:00,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:10:00,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:10:00,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:10:00,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:10:00,799 INFO L87 Difference]: Start difference. First operand 297 states and 356 transitions. Second operand 4 states. [2020-12-23 16:10:01,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:10:01,266 INFO L93 Difference]: Finished difference Result 486 states and 583 transitions. [2020-12-23 16:10:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:10:01,267 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2020-12-23 16:10:01,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:10:01,269 INFO L225 Difference]: With dead ends: 486 [2020-12-23 16:10:01,269 INFO L226 Difference]: Without dead ends: 237 [2020-12-23 16:10:01,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 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 16:10:01,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-12-23 16:10:01,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2020-12-23 16:10:01,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-12-23 16:10:01,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 278 transitions. [2020-12-23 16:10:01,279 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 278 transitions. Word has length 109 [2020-12-23 16:10:01,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:10:01,279 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 278 transitions. [2020-12-23 16:10:01,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:10:01,279 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 278 transitions. [2020-12-23 16:10:01,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 16:10:01,281 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:10:01,281 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:10:01,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:10:01,499 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:10:01,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:10:01,500 INFO L82 PathProgramCache]: Analyzing trace with hash -2033164455, now seen corresponding path program 1 times [2020-12-23 16:10:01,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:10:01,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697830463] [2020-12-23 16:10:01,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:10:01,535 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:10:01,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [153518644] [2020-12-23 16:10:01,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:10:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:10:01,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 16:10:01,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:10:01,980 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 16:10:01,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697830463] [2020-12-23 16:10:01,980 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:10:01,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153518644] [2020-12-23 16:10:01,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:10:01,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-23 16:10:01,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128501800] [2020-12-23 16:10:01,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 16:10:01,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:10:01,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 16:10:01,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 16:10:01,983 INFO L87 Difference]: Start difference. First operand 237 states and 278 transitions. Second operand 6 states. [2020-12-23 16:10:02,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:10:02,034 INFO L93 Difference]: Finished difference Result 422 states and 500 transitions. [2020-12-23 16:10:02,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 16:10:02,034 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2020-12-23 16:10:02,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:10:02,036 INFO L225 Difference]: With dead ends: 422 [2020-12-23 16:10:02,036 INFO L226 Difference]: Without dead ends: 239 [2020-12-23 16:10:02,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 16:10:02,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-12-23 16:10:02,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-12-23 16:10:02,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-12-23 16:10:02,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 280 transitions. [2020-12-23 16:10:02,046 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 280 transitions. Word has length 116 [2020-12-23 16:10:02,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:10:02,047 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 280 transitions. [2020-12-23 16:10:02,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 16:10:02,047 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 280 transitions. [2020-12-23 16:10:02,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-23 16:10:02,048 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:10:02,048 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:10:02,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:10:02,262 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:10:02,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:10:02,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1107953786, now seen corresponding path program 2 times [2020-12-23 16:10:02,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:10:02,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563409042] [2020-12-23 16:10:02,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:10:02,287 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:10:02,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1958209014] [2020-12-23 16:10:02,289 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:10:03,513 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 16:10:03,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 16:10:03,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 16:10:03,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:10:03,695 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 16:10:03,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563409042] [2020-12-23 16:10:03,696 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:10:03,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958209014] [2020-12-23 16:10:03,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:10:03,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-23 16:10:03,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895489509] [2020-12-23 16:10:03,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 16:10:03,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:10:03,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 16:10:03,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 16:10:03,701 INFO L87 Difference]: Start difference. First operand 239 states and 280 transitions. Second operand 7 states. [2020-12-23 16:10:03,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:10:03,760 INFO L93 Difference]: Finished difference Result 425 states and 503 transitions. [2020-12-23 16:10:03,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 16:10:03,761 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2020-12-23 16:10:03,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:10:03,762 INFO L225 Difference]: With dead ends: 425 [2020-12-23 16:10:03,762 INFO L226 Difference]: Without dead ends: 241 [2020-12-23 16:10:03,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 16:10:03,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-12-23 16:10:03,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-12-23 16:10:03,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-12-23 16:10:03,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 282 transitions. [2020-12-23 16:10:03,782 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 282 transitions. Word has length 118 [2020-12-23 16:10:03,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:10:03,782 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 282 transitions. [2020-12-23 16:10:03,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 16:10:03,782 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 282 transitions. [2020-12-23 16:10:03,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-12-23 16:10:03,785 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:10:03,785 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:10:03,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-23 16:10:03,993 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:10:03,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:10:03,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1744266425, now seen corresponding path program 3 times [2020-12-23 16:10:03,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:10:03,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643565998] [2020-12-23 16:10:03,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:10:04,009 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:10:04,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [923514757] [2020-12-23 16:10:04,010 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true