/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_test7-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 04:25:27,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 04:25:27,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 04:25:27,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-01-07 04:25:27,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 04:25:27,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 04:25:27,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 04:25:27,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 04:25:27,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 04:25:27,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 04:25:27,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 04:25:27,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 04:25:27,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 04:25:27,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 04:25:27,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 04:25:27,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 04:25:27,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-07 04:25:27,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 04:25:27,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 04:25:27,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 04:25:27,134 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-07 04:25:27,196 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 04:25:27,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 04:25:27,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 04:25:27,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 04:25:27,199 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 04:25:27,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 04:25:27,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 04:25:27,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 04:25:27,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-07 04:25:27,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 04:25:27,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-07 04:25:27,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-07 04:25:27,202 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 04:25:27,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-07 04:25:27,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 04:25:27,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 04:25:27,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 04:25:27,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 04:25:27,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 04:25:27,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 04:25:27,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-07 04:25:27,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 04:25:27,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 04:25:27,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-07 04:25:27,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 04:25:27,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 04:25:27,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 04:25:27,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 04:25:27,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 04:25:27,700 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 04:25:27,700 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 04:25:27,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-2.i [2021-01-07 04:25:27,791 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e6dd17596/825802cc8a194edcbe89752581de9a4a/FLAG5b7a9cbc7 [2021-01-07 04:25:28,523 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 04:25:28,524 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-2.i [2021-01-07 04:25:28,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e6dd17596/825802cc8a194edcbe89752581de9a4a/FLAG5b7a9cbc7 [2021-01-07 04:25:28,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e6dd17596/825802cc8a194edcbe89752581de9a4a [2021-01-07 04:25:28,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 04:25:28,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 04:25:28,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 04:25:28,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 04:25:28,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 04:25:28,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 04:25:28" (1/1) ... [2021-01-07 04:25:28,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a334dd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:25:28, skipping insertion in model container [2021-01-07 04:25:28,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 04:25:28" (1/1) ... [2021-01-07 04:25:28,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 04:25:28,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-07 04:25:29,350 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_test7-2.i[33021,33034] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],StructAccessExpression[IdentifierExpression[~user~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[60],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[56],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem35,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem35,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem36,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem36,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem37,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem37,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem38,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem38,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem39,],base],StructAccessExpression[IdentifierExpression[#t~mem39,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem41,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem41,],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~mem54,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem54,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem55,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem55,],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~mem67,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem67,],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~mem79,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem79,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem89,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem89,],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~mem115,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem115,],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~mem123,],base],StructAccessExpression[IdentifierExpression[#t~mem123,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem124,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem124,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem134,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem134,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~1,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~1,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_bkt~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem187,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem187,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem192,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem192,],offset],IdentifierExpression[#t~mem194,]]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem198,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem198,],offset],IdentifierExpression[#t~mem200,]]]]] left hand side expression in assignment: lhs: VariableLHS[~_hd_bkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_hd_head~0,],base],StructAccessExpression[IdentifierExpression[~_hd_head~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem212,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem212,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem215,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem215,],offset]]]] [2021-01-07 04:25:29,589 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_test7-2.i[44124,44137] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] [2021-01-07 04:25:29,591 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_test7-2.i[44245,44258] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem233,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem233,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem238,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem238,],offset],IdentifierExpression[#t~mem240,]]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem244,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem244,],offset],IdentifierExpression[#t~mem246,]]]]] left hand side expression in assignment: lhs: VariableLHS[~_hd_bkt~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_hd_head~1,],base],StructAccessExpression[IdentifierExpression[~_hd_head~1,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem258,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem258,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem261,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem261,],offset]]]] [2021-01-07 04:25:29,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 04:25:29,620 INFO L203 MainTranslator]: Completed pre-run [2021-01-07 04:25:29,654 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_test7-2.i[33021,33034] left hand side expression in assignment: address: IdentifierExpression[~#i~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],StructAccessExpression[IdentifierExpression[~user~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[60],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[56],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem40,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem40,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem41,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem41,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem42,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem42,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem43,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem43,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem44,],base],StructAccessExpression[IdentifierExpression[#t~mem44,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem46,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem46,],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~mem59,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem59,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem60,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem60,],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~mem72,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem72,],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~mem86,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem86,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem96,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem96,],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~mem123,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem123,],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~mem131,],base],StructAccessExpression[IdentifierExpression[#t~mem131,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem133,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem133,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem143,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem143,],offset]]]] left hand side expression in assignment: address: IdentifierExpression[~#i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~1,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~1,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_bkt~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem198,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem198,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem203,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem203,],offset],IdentifierExpression[#t~mem205,]]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem209,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem209,],offset],IdentifierExpression[#t~mem211,]]]]] left hand side expression in assignment: lhs: VariableLHS[~_hd_bkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_hd_head~0,],base],StructAccessExpression[IdentifierExpression[~_hd_head~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem223,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem223,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem226,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem226,],offset]]]] [2021-01-07 04:25:29,812 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_test7-2.i[44124,44137] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] [2021-01-07 04:25:29,813 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_test7-2.i[44245,44258] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem244,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem244,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem249,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem249,],offset],IdentifierExpression[#t~mem251,]]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem255,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem255,],offset],IdentifierExpression[#t~mem257,]]]]] left hand side expression in assignment: lhs: VariableLHS[~_hd_bkt~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_hd_head~1,],base],StructAccessExpression[IdentifierExpression[~_hd_head~1,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem269,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem269,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem272,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem272,],offset]]]] [2021-01-07 04:25:29,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 04:25:29,902 INFO L208 MainTranslator]: Completed translation [2021-01-07 04:25:29,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:25:29 WrapperNode [2021-01-07 04:25:29,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 04:25:29,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 04:25:29,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 04:25:29,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 04:25:29,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:25:29" (1/1) ... [2021-01-07 04:25:29,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:25:29" (1/1) ... [2021-01-07 04:25:30,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 04:25:30,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 04:25:30,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 04:25:30,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 04:25:30,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:25:29" (1/1) ... [2021-01-07 04:25:30,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:25:29" (1/1) ... [2021-01-07 04:25:30,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:25:29" (1/1) ... [2021-01-07 04:25:30,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:25:29" (1/1) ... [2021-01-07 04:25:30,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:25:29" (1/1) ... [2021-01-07 04:25:30,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:25:29" (1/1) ... [2021-01-07 04:25:30,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:25:29" (1/1) ... [2021-01-07 04:25:30,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 04:25:30,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 04:25:30,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 04:25:30,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 04:25:30,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:25:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 04:25:30,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-07 04:25:30,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-07 04:25:30,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-07 04:25:30,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-07 04:25:30,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 04:25:30,382 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-01-07 04:25:30,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-01-07 04:25:30,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-07 04:25:30,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 04:25:30,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 04:25:30,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 04:25:32,814 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 04:25:32,814 INFO L299 CfgBuilder]: Removed 82 assume(true) statements. [2021-01-07 04:25:32,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 04:25:32 BoogieIcfgContainer [2021-01-07 04:25:32,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 04:25:32,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 04:25:32,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 04:25:32,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 04:25:32,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 04:25:28" (1/3) ... [2021-01-07 04:25:32,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c352c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 04:25:32, skipping insertion in model container [2021-01-07 04:25:32,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:25:29" (2/3) ... [2021-01-07 04:25:32,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c352c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 04:25:32, skipping insertion in model container [2021-01-07 04:25:32,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 04:25:32" (3/3) ... [2021-01-07 04:25:32,826 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test7-2.i [2021-01-07 04:25:32,834 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 04:25:32,840 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-07 04:25:32,861 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-01-07 04:25:32,891 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 04:25:32,892 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-07 04:25:32,892 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 04:25:32,892 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 04:25:32,892 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 04:25:32,892 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 04:25:32,893 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 04:25:32,893 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 04:25:32,914 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2021-01-07 04:25:32,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-07 04:25:32,920 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:32,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:25:32,922 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:32,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:32,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1366407864, now seen corresponding path program 1 times [2021-01-07 04:25:32,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:32,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193327240] [2021-01-07 04:25:32,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:25:33,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:25:33,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193327240] [2021-01-07 04:25:33,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:25:33,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 04:25:33,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518905226] [2021-01-07 04:25:33,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-07 04:25:33,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:25:33,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-07 04:25:33,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 04:25:33,138 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 2 states. [2021-01-07 04:25:33,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:25:33,195 INFO L93 Difference]: Finished difference Result 419 states and 707 transitions. [2021-01-07 04:25:33,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-07 04:25:33,197 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-01-07 04:25:33,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:25:33,211 INFO L225 Difference]: With dead ends: 419 [2021-01-07 04:25:33,211 INFO L226 Difference]: Without dead ends: 177 [2021-01-07 04:25:33,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 04:25:33,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-01-07 04:25:33,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2021-01-07 04:25:33,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2021-01-07 04:25:33,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 232 transitions. [2021-01-07 04:25:33,273 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 232 transitions. Word has length 8 [2021-01-07 04:25:33,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:25:33,274 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 232 transitions. [2021-01-07 04:25:33,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-07 04:25:33,274 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 232 transitions. [2021-01-07 04:25:33,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-07 04:25:33,275 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:33,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:25:33,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 04:25:33,276 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:33,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:33,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1136278917, now seen corresponding path program 1 times [2021-01-07 04:25:33,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:33,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251819911] [2021-01-07 04:25:33,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:25:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:25:33,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251819911] [2021-01-07 04:25:33,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:25:33,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:25:33,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370190709] [2021-01-07 04:25:33,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:25:33,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:25:33,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:25:33,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:25:33,429 INFO L87 Difference]: Start difference. First operand 177 states and 232 transitions. Second operand 4 states. [2021-01-07 04:25:34,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:25:34,076 INFO L93 Difference]: Finished difference Result 382 states and 501 transitions. [2021-01-07 04:25:34,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:25:34,078 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-01-07 04:25:34,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:25:34,086 INFO L225 Difference]: With dead ends: 382 [2021-01-07 04:25:34,086 INFO L226 Difference]: Without dead ends: 295 [2021-01-07 04:25:34,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 04:25:34,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-01-07 04:25:34,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 179. [2021-01-07 04:25:34,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2021-01-07 04:25:34,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 234 transitions. [2021-01-07 04:25:34,131 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 234 transitions. Word has length 10 [2021-01-07 04:25:34,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:25:34,131 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 234 transitions. [2021-01-07 04:25:34,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:25:34,132 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 234 transitions. [2021-01-07 04:25:34,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-07 04:25:34,135 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:34,135 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] [2021-01-07 04:25:34,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 04:25:34,136 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:34,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:34,137 INFO L82 PathProgramCache]: Analyzing trace with hash -2095912151, now seen corresponding path program 1 times [2021-01-07 04:25:34,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:34,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564759601] [2021-01-07 04:25:34,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:34,195 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:25:34,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234366039] [2021-01-07 04:25:34,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:25:34,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:25:34,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:25:34,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:25:34,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564759601] [2021-01-07 04:25:34,666 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:25:34,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234366039] [2021-01-07 04:25:34,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:25:34,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:25:34,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558736436] [2021-01-07 04:25:34,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 04:25:34,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:25:34,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 04:25:34,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:25:34,669 INFO L87 Difference]: Start difference. First operand 179 states and 234 transitions. Second operand 3 states. [2021-01-07 04:25:34,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:25:34,788 INFO L93 Difference]: Finished difference Result 375 states and 495 transitions. [2021-01-07 04:25:34,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:25:34,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2021-01-07 04:25:34,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:25:34,791 INFO L225 Difference]: With dead ends: 375 [2021-01-07 04:25:34,791 INFO L226 Difference]: Without dead ends: 200 [2021-01-07 04:25:34,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:25:34,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-01-07 04:25:34,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 199. [2021-01-07 04:25:34,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2021-01-07 04:25:34,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 254 transitions. [2021-01-07 04:25:34,804 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 254 transitions. Word has length 62 [2021-01-07 04:25:34,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:25:34,804 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 254 transitions. [2021-01-07 04:25:34,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 04:25:34,804 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 254 transitions. [2021-01-07 04:25:34,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-07 04:25:34,807 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:34,807 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] [2021-01-07 04:25:35,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-01-07 04:25:35,022 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:35,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:35,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1305568807, now seen corresponding path program 1 times [2021-01-07 04:25:35,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:35,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167021596] [2021-01-07 04:25:35,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:35,072 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:25:35,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [711327877] [2021-01-07 04:25:35,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:25:35,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:25:35,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:25:35,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:25:35,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167021596] [2021-01-07 04:25:35,427 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:25:35,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711327877] [2021-01-07 04:25:35,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:25:35,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:25:35,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766287136] [2021-01-07 04:25:35,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:25:35,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:25:35,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:25:35,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:25:35,431 INFO L87 Difference]: Start difference. First operand 199 states and 254 transitions. Second operand 4 states. [2021-01-07 04:25:35,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:25:35,544 INFO L93 Difference]: Finished difference Result 386 states and 496 transitions. [2021-01-07 04:25:35,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:25:35,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2021-01-07 04:25:35,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:25:35,547 INFO L225 Difference]: With dead ends: 386 [2021-01-07 04:25:35,547 INFO L226 Difference]: Without dead ends: 191 [2021-01-07 04:25:35,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 04:25:35,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-01-07 04:25:35,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 185. [2021-01-07 04:25:35,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2021-01-07 04:25:35,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 233 transitions. [2021-01-07 04:25:35,568 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 233 transitions. Word has length 62 [2021-01-07 04:25:35,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:25:35,569 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 233 transitions. [2021-01-07 04:25:35,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:25:35,569 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 233 transitions. [2021-01-07 04:25:35,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-07 04:25:35,574 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:35,574 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] [2021-01-07 04:25:35,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:35,792 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:35,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:35,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1777715509, now seen corresponding path program 1 times [2021-01-07 04:25:35,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:35,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054145234] [2021-01-07 04:25:35,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:35,832 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:25:35,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885911506] [2021-01-07 04:25:35,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:25:36,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjunts are in the unsatisfiable core [2021-01-07 04:25:36,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:25:36,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:25:36,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054145234] [2021-01-07 04:25:36,221 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:25:36,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885911506] [2021-01-07 04:25:36,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:25:36,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:25:36,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635144671] [2021-01-07 04:25:36,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 04:25:36,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:25:36,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 04:25:36,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:25:36,224 INFO L87 Difference]: Start difference. First operand 185 states and 233 transitions. Second operand 3 states. [2021-01-07 04:25:36,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:25:36,342 INFO L93 Difference]: Finished difference Result 479 states and 602 transitions. [2021-01-07 04:25:36,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:25:36,343 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2021-01-07 04:25:36,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:25:36,346 INFO L225 Difference]: With dead ends: 479 [2021-01-07 04:25:36,346 INFO L226 Difference]: Without dead ends: 298 [2021-01-07 04:25:36,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:25:36,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-01-07 04:25:36,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 291. [2021-01-07 04:25:36,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2021-01-07 04:25:36,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 366 transitions. [2021-01-07 04:25:36,359 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 366 transitions. Word has length 62 [2021-01-07 04:25:36,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:25:36,360 INFO L481 AbstractCegarLoop]: Abstraction has 291 states and 366 transitions. [2021-01-07 04:25:36,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 04:25:36,360 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 366 transitions. [2021-01-07 04:25:36,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-07 04:25:36,362 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:36,362 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] [2021-01-07 04:25:36,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:36,576 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:36,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:36,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1300403396, now seen corresponding path program 1 times [2021-01-07 04:25:36,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:36,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738432112] [2021-01-07 04:25:36,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:36,598 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:25:36,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1495945236] [2021-01-07 04:25:36,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:25:36,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:25:36,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:25:36,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:25:36,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738432112] [2021-01-07 04:25:36,983 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:25:36,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495945236] [2021-01-07 04:25:36,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:25:36,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:25:36,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312874295] [2021-01-07 04:25:36,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 04:25:36,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:25:36,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 04:25:36,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:25:36,992 INFO L87 Difference]: Start difference. First operand 291 states and 366 transitions. Second operand 3 states. [2021-01-07 04:25:37,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:25:37,031 INFO L93 Difference]: Finished difference Result 536 states and 683 transitions. [2021-01-07 04:25:37,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:25:37,031 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2021-01-07 04:25:37,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:25:37,034 INFO L225 Difference]: With dead ends: 536 [2021-01-07 04:25:37,034 INFO L226 Difference]: Without dead ends: 293 [2021-01-07 04:25:37,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:25:37,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-01-07 04:25:37,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2021-01-07 04:25:37,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2021-01-07 04:25:37,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 368 transitions. [2021-01-07 04:25:37,050 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 368 transitions. Word has length 69 [2021-01-07 04:25:37,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:25:37,051 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 368 transitions. [2021-01-07 04:25:37,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 04:25:37,051 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 368 transitions. [2021-01-07 04:25:37,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-01-07 04:25:37,060 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:37,060 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:25:37,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:37,275 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:37,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:37,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1522577957, now seen corresponding path program 1 times [2021-01-07 04:25:37,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:37,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989060720] [2021-01-07 04:25:37,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:37,295 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:25:37,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844912001] [2021-01-07 04:25:37,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:25:37,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-07 04:25:37,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:25:37,654 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-07 04:25:37,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989060720] [2021-01-07 04:25:37,655 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:25:37,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844912001] [2021-01-07 04:25:37,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:25:37,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2021-01-07 04:25:37,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127312798] [2021-01-07 04:25:37,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:25:37,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:25:37,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:25:37,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:25:37,657 INFO L87 Difference]: Start difference. First operand 293 states and 368 transitions. Second operand 4 states. [2021-01-07 04:25:37,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:25:37,702 INFO L93 Difference]: Finished difference Result 540 states and 687 transitions. [2021-01-07 04:25:37,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:25:37,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2021-01-07 04:25:37,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:25:37,705 INFO L225 Difference]: With dead ends: 540 [2021-01-07 04:25:37,705 INFO L226 Difference]: Without dead ends: 295 [2021-01-07 04:25:37,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:25:37,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-01-07 04:25:37,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2021-01-07 04:25:37,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2021-01-07 04:25:37,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 370 transitions. [2021-01-07 04:25:37,717 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 370 transitions. Word has length 71 [2021-01-07 04:25:37,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:25:37,717 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 370 transitions. [2021-01-07 04:25:37,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:25:37,717 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 370 transitions. [2021-01-07 04:25:37,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-01-07 04:25:37,718 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:37,718 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] [2021-01-07 04:25:37,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-01-07 04:25:37,932 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:37,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:37,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1094780836, now seen corresponding path program 2 times [2021-01-07 04:25:37,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:37,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796774798] [2021-01-07 04:25:37,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:37,956 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:25:37,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [258593834] [2021-01-07 04:25:37,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:38,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-07 04:25:38,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 04:25:38,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:25:38,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:25:38,217 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-01-07 04:25:38,218 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 04:25:38,221 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 04:25:38,222 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 04:25:38,222 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2021-01-07 04:25:38,242 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-01-07 04:25:38,244 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 04:25:38,246 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 04:25:38,246 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 04:25:38,246 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2021-01-07 04:25:38,257 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-07 04:25:38,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796774798] [2021-01-07 04:25:38,258 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:25:38,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258593834] [2021-01-07 04:25:38,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:25:38,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:25:38,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383038118] [2021-01-07 04:25:38,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:25:38,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:25:38,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:25:38,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:25:38,260 INFO L87 Difference]: Start difference. First operand 295 states and 370 transitions. Second operand 4 states. [2021-01-07 04:25:38,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:25:38,647 INFO L93 Difference]: Finished difference Result 383 states and 487 transitions. [2021-01-07 04:25:38,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:25:38,648 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 73 [2021-01-07 04:25:38,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:25:38,652 INFO L225 Difference]: With dead ends: 383 [2021-01-07 04:25:38,652 INFO L226 Difference]: Without dead ends: 379 [2021-01-07 04:25:38,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 04:25:38,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-01-07 04:25:38,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 297. [2021-01-07 04:25:38,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2021-01-07 04:25:38,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 372 transitions. [2021-01-07 04:25:38,666 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 372 transitions. Word has length 73 [2021-01-07 04:25:38,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:25:38,666 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 372 transitions. [2021-01-07 04:25:38,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:25:38,666 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 372 transitions. [2021-01-07 04:25:38,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-07 04:25:38,670 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:38,670 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:25:38,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:38,894 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:38,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:38,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1878713718, now seen corresponding path program 1 times [2021-01-07 04:25:38,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:38,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033998255] [2021-01-07 04:25:38,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:38,913 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:25:38,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [191813433] [2021-01-07 04:25:38,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:25:39,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:25:39,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:25:39,303 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-07 04:25:39,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033998255] [2021-01-07 04:25:39,303 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:25:39,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191813433] [2021-01-07 04:25:39,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:25:39,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:25:39,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247509178] [2021-01-07 04:25:39,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 04:25:39,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:25:39,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 04:25:39,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:25:39,306 INFO L87 Difference]: Start difference. First operand 297 states and 372 transitions. Second operand 3 states. [2021-01-07 04:25:39,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:25:39,409 INFO L93 Difference]: Finished difference Result 487 states and 631 transitions. [2021-01-07 04:25:39,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:25:39,409 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2021-01-07 04:25:39,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:25:39,412 INFO L225 Difference]: With dead ends: 487 [2021-01-07 04:25:39,412 INFO L226 Difference]: Without dead ends: 339 [2021-01-07 04:25:39,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:25:39,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2021-01-07 04:25:39,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2021-01-07 04:25:39,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2021-01-07 04:25:39,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 412 transitions. [2021-01-07 04:25:39,426 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 412 transitions. Word has length 107 [2021-01-07 04:25:39,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:25:39,426 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 412 transitions. [2021-01-07 04:25:39,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 04:25:39,426 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 412 transitions. [2021-01-07 04:25:39,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-07 04:25:39,427 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:39,428 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:25:39,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:39,643 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:39,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:39,644 INFO L82 PathProgramCache]: Analyzing trace with hash 2096048526, now seen corresponding path program 1 times [2021-01-07 04:25:39,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:39,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715751703] [2021-01-07 04:25:39,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:39,658 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:25:39,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1111478189] [2021-01-07 04:25:39,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:25:39,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:25:39,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:25:40,070 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-07 04:25:40,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715751703] [2021-01-07 04:25:40,071 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:25:40,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111478189] [2021-01-07 04:25:40,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:25:40,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:25:40,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084328953] [2021-01-07 04:25:40,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:25:40,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:25:40,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:25:40,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:25:40,074 INFO L87 Difference]: Start difference. First operand 337 states and 412 transitions. Second operand 4 states. [2021-01-07 04:25:40,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:25:40,168 INFO L93 Difference]: Finished difference Result 502 states and 626 transitions. [2021-01-07 04:25:40,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:25:40,169 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2021-01-07 04:25:40,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:25:40,171 INFO L225 Difference]: With dead ends: 502 [2021-01-07 04:25:40,172 INFO L226 Difference]: Without dead ends: 314 [2021-01-07 04:25:40,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 04:25:40,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-01-07 04:25:40,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 309. [2021-01-07 04:25:40,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2021-01-07 04:25:40,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 370 transitions. [2021-01-07 04:25:40,185 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 370 transitions. Word has length 107 [2021-01-07 04:25:40,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:25:40,185 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 370 transitions. [2021-01-07 04:25:40,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:25:40,186 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 370 transitions. [2021-01-07 04:25:40,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-07 04:25:40,187 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:40,187 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:25:40,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-01-07 04:25:40,401 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:40,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:40,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1213199680, now seen corresponding path program 1 times [2021-01-07 04:25:40,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:40,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306759680] [2021-01-07 04:25:40,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:40,460 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:25:40,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [348598765] [2021-01-07 04:25:40,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:25:40,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 5 conjunts are in the unsatisfiable core [2021-01-07 04:25:40,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:25:40,830 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-07 04:25:40,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306759680] [2021-01-07 04:25:40,831 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:25:40,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348598765] [2021-01-07 04:25:40,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:25:40,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-01-07 04:25:40,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76239119] [2021-01-07 04:25:40,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 04:25:40,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:25:40,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 04:25:40,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-07 04:25:40,833 INFO L87 Difference]: Start difference. First operand 309 states and 370 transitions. Second operand 5 states. [2021-01-07 04:25:40,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:25:40,881 INFO L93 Difference]: Finished difference Result 572 states and 691 transitions. [2021-01-07 04:25:40,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 04:25:40,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2021-01-07 04:25:40,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:25:40,883 INFO L225 Difference]: With dead ends: 572 [2021-01-07 04:25:40,884 INFO L226 Difference]: Without dead ends: 311 [2021-01-07 04:25:40,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-07 04:25:40,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-01-07 04:25:40,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2021-01-07 04:25:40,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2021-01-07 04:25:40,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 372 transitions. [2021-01-07 04:25:40,901 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 372 transitions. Word has length 107 [2021-01-07 04:25:40,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:25:40,901 INFO L481 AbstractCegarLoop]: Abstraction has 311 states and 372 transitions. [2021-01-07 04:25:40,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 04:25:40,902 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 372 transitions. [2021-01-07 04:25:40,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-07 04:25:40,906 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:40,906 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:25:41,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:41,122 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:41,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:41,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1565711905, now seen corresponding path program 2 times [2021-01-07 04:25:41,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:41,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446482309] [2021-01-07 04:25:41,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:41,143 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:25:41,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [296867830] [2021-01-07 04:25:41,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:41,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-07 04:25:41,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 04:25:41,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-07 04:25:41,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:25:41,699 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-01-07 04:25:41,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446482309] [2021-01-07 04:25:41,700 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:25:41,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296867830] [2021-01-07 04:25:41,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:25:41,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-01-07 04:25:41,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301988248] [2021-01-07 04:25:41,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 04:25:41,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:25:41,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 04:25:41,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-07 04:25:41,703 INFO L87 Difference]: Start difference. First operand 311 states and 372 transitions. Second operand 6 states. [2021-01-07 04:25:41,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:25:41,763 INFO L93 Difference]: Finished difference Result 576 states and 695 transitions. [2021-01-07 04:25:41,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 04:25:41,764 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2021-01-07 04:25:41,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:25:41,766 INFO L225 Difference]: With dead ends: 576 [2021-01-07 04:25:41,766 INFO L226 Difference]: Without dead ends: 313 [2021-01-07 04:25:41,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-07 04:25:41,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2021-01-07 04:25:41,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2021-01-07 04:25:41,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2021-01-07 04:25:41,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 374 transitions. [2021-01-07 04:25:41,781 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 374 transitions. Word has length 109 [2021-01-07 04:25:41,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:25:41,781 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 374 transitions. [2021-01-07 04:25:41,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 04:25:41,782 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 374 transitions. [2021-01-07 04:25:41,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-01-07 04:25:41,783 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:41,783 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:25:41,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:41,995 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:41,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:41,996 INFO L82 PathProgramCache]: Analyzing trace with hash -383989728, now seen corresponding path program 3 times [2021-01-07 04:25:41,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:41,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140964457] [2021-01-07 04:25:41,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:42,012 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:25:42,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [124471734] [2021-01-07 04:25:42,013 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:42,352 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-01-07 04:25:42,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 04:25:42,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 9 conjunts are in the unsatisfiable core [2021-01-07 04:25:42,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:25:42,563 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-01-07 04:25:42,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140964457] [2021-01-07 04:25:42,564 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:25:42,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124471734] [2021-01-07 04:25:42,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:25:42,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:25:42,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141022851] [2021-01-07 04:25:42,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:25:42,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:25:42,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:25:42,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:25:42,566 INFO L87 Difference]: Start difference. First operand 313 states and 374 transitions. Second operand 4 states. [2021-01-07 04:25:42,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:25:42,940 INFO L93 Difference]: Finished difference Result 644 states and 770 transitions. [2021-01-07 04:25:42,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:25:42,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2021-01-07 04:25:42,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:25:42,943 INFO L225 Difference]: With dead ends: 644 [2021-01-07 04:25:42,943 INFO L226 Difference]: Without dead ends: 379 [2021-01-07 04:25:42,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 04:25:42,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-01-07 04:25:42,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 372. [2021-01-07 04:25:42,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2021-01-07 04:25:42,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 442 transitions. [2021-01-07 04:25:42,959 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 442 transitions. Word has length 111 [2021-01-07 04:25:42,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:25:42,960 INFO L481 AbstractCegarLoop]: Abstraction has 372 states and 442 transitions. [2021-01-07 04:25:42,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:25:42,960 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 442 transitions. [2021-01-07 04:25:42,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-01-07 04:25:42,961 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:42,962 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:25:43,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-01-07 04:25:43,176 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:43,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:43,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1107954682, now seen corresponding path program 1 times [2021-01-07 04:25:43,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:43,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108947253] [2021-01-07 04:25:43,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:43,194 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:25:43,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1409817081] [2021-01-07 04:25:43,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:25:43,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 7 conjunts are in the unsatisfiable core [2021-01-07 04:25:43,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:25:43,643 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-07 04:25:43,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108947253] [2021-01-07 04:25:43,644 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:25:43,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409817081] [2021-01-07 04:25:43,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:25:43,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-01-07 04:25:43,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118686652] [2021-01-07 04:25:43,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-07 04:25:43,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:25:43,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-07 04:25:43,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-01-07 04:25:43,646 INFO L87 Difference]: Start difference. First operand 372 states and 442 transitions. Second operand 7 states. [2021-01-07 04:25:43,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:25:43,709 INFO L93 Difference]: Finished difference Result 691 states and 827 transitions. [2021-01-07 04:25:43,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 04:25:43,709 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2021-01-07 04:25:43,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:25:43,712 INFO L225 Difference]: With dead ends: 691 [2021-01-07 04:25:43,712 INFO L226 Difference]: Without dead ends: 374 [2021-01-07 04:25:43,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-01-07 04:25:43,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-01-07 04:25:43,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2021-01-07 04:25:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2021-01-07 04:25:43,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 444 transitions. [2021-01-07 04:25:43,730 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 444 transitions. Word has length 118 [2021-01-07 04:25:43,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:25:43,731 INFO L481 AbstractCegarLoop]: Abstraction has 374 states and 444 transitions. [2021-01-07 04:25:43,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-07 04:25:43,731 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 444 transitions. [2021-01-07 04:25:43,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-01-07 04:25:43,732 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:43,733 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:25:43,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-01-07 04:25:43,948 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:43,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:43,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1744267321, now seen corresponding path program 2 times [2021-01-07 04:25:43,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:43,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164980121] [2021-01-07 04:25:43,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:43,965 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:25:43,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [434659157] [2021-01-07 04:25:43,966 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:25:44,285 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-07 04:25:44,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 04:25:44,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-07 04:25:44,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:25:44,446 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-01-07 04:25:44,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164980121] [2021-01-07 04:25:44,446 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:25:44,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434659157] [2021-01-07 04:25:44,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:25:44,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-01-07 04:25:44,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179529162] [2021-01-07 04:25:44,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-07 04:25:44,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:25:44,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-07 04:25:44,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-01-07 04:25:44,448 INFO L87 Difference]: Start difference. First operand 374 states and 444 transitions. Second operand 8 states. [2021-01-07 04:25:44,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:25:44,519 INFO L93 Difference]: Finished difference Result 694 states and 830 transitions. [2021-01-07 04:25:44,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 04:25:44,519 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2021-01-07 04:25:44,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:25:44,521 INFO L225 Difference]: With dead ends: 694 [2021-01-07 04:25:44,522 INFO L226 Difference]: Without dead ends: 376 [2021-01-07 04:25:44,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-01-07 04:25:44,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-01-07 04:25:44,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2021-01-07 04:25:44,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2021-01-07 04:25:44,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 446 transitions. [2021-01-07 04:25:44,538 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 446 transitions. Word has length 120 [2021-01-07 04:25:44,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:25:44,539 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 446 transitions. [2021-01-07 04:25:44,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-07 04:25:44,539 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 446 transitions. [2021-01-07 04:25:44,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-01-07 04:25:44,540 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:25:44,540 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:25:44,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-01-07 04:25:44,756 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:25:44,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:25:44,757 INFO L82 PathProgramCache]: Analyzing trace with hash -994826982, now seen corresponding path program 3 times [2021-01-07 04:25:44,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:25:44,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699913262] [2021-01-07 04:25:44,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:25:44,770 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:25:44,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [413337913] [2021-01-07 04:25:44,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true