/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 04:16:37,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 04:16:37,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 04:16:37,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 04:16:37,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 04:16:37,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 04:16:37,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 04:16:37,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 04:16:37,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 04:16:37,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 04:16:37,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 04:16:37,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 04:16:37,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 04:16:37,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 04:16:37,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 04:16:37,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 04:16:37,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 04:16:37,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 04:16:37,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 04:16:37,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 04:16:37,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 04:16:37,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 04:16:37,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 04:16:37,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 04:16:37,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-07 04:16:37,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-07 04:16:37,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-07 04:16:37,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-07 04:16:37,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-07 04:16:37,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-07 04:16:37,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 04:16:37,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 04:16:37,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 04:16:37,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 04:16:37,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 04:16:37,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 04:16:37,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 04:16:37,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 04:16:37,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 04:16:37,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 04:16:37,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 04:16:37,547 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 04:16:37,595 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 04:16:37,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 04:16:37,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 04:16:37,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 04:16:37,598 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 04:16:37,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 04:16:37,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 04:16:37,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 04:16:37,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-07 04:16:37,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 04:16:37,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-07 04:16:37,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-07 04:16:37,599 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 04:16:37,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-07 04:16:37,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 04:16:37,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 04:16:37,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 04:16:37,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 04:16:37,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 04:16:37,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 04:16:37,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-07 04:16:37,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 04:16:37,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 04:16:37,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-07 04:16:37,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 04:16:37,602 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 04:16:37,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 04:16:38,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 04:16:38,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 04:16:38,028 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 04:16:38,028 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 04:16:38,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-1.i [2021-01-07 04:16:38,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c67c04f98/f6b67c5ecd104252832883ad1eada086/FLAG309c76736 [2021-01-07 04:16:38,933 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 04:16:38,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-1.i [2021-01-07 04:16:38,970 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c67c04f98/f6b67c5ecd104252832883ad1eada086/FLAG309c76736 [2021-01-07 04:16:39,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c67c04f98/f6b67c5ecd104252832883ad1eada086 [2021-01-07 04:16:39,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 04:16:39,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 04:16:39,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 04:16:39,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 04:16:39,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 04:16:39,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 04:16:39" (1/1) ... [2021-01-07 04:16:39,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e1bd71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:16:39, skipping insertion in model container [2021-01-07 04:16:39,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 04:16:39" (1/1) ... [2021-01-07 04:16:39,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 04:16:39,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-07 04:16:39,652 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-1.i[33021,33034] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],StructAccessExpression[IdentifierExpression[~user~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[60],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[56],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~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 04:16:39,866 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-1.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 04:16:39,868 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-1.i[44245,44258] [2021-01-07 04:16:39,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 04:16:39,908 INFO L203 MainTranslator]: Completed pre-run [2021-01-07 04:16:39,944 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-1.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 04:16:40,007 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-1.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 04:16:40,009 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-1.i[44245,44258] [2021-01-07 04:16:40,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 04:16:40,132 INFO L208 MainTranslator]: Completed translation [2021-01-07 04:16:40,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:16:40 WrapperNode [2021-01-07 04:16:40,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 04:16:40,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 04:16:40,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 04:16:40,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 04:16:40,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:16:40" (1/1) ... [2021-01-07 04:16:40,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:16:40" (1/1) ... [2021-01-07 04:16:40,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 04:16:40,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 04:16:40,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 04:16:40,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 04:16:40,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:16:40" (1/1) ... [2021-01-07 04:16:40,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:16:40" (1/1) ... [2021-01-07 04:16:40,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:16:40" (1/1) ... [2021-01-07 04:16:40,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:16:40" (1/1) ... [2021-01-07 04:16:40,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:16:40" (1/1) ... [2021-01-07 04:16:40,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:16:40" (1/1) ... [2021-01-07 04:16:40,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:16:40" (1/1) ... [2021-01-07 04:16:40,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 04:16:40,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 04:16:40,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 04:16:40,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 04:16:40,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:16:40" (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 04:16:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-07 04:16:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-07 04:16:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-07 04:16:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-07 04:16:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 04:16:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-01-07 04:16:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-01-07 04:16:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-07 04:16:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 04:16:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 04:16:40,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 04:16:42,535 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 04:16:42,535 INFO L299 CfgBuilder]: Removed 73 assume(true) statements. [2021-01-07 04:16:42,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 04:16:42 BoogieIcfgContainer [2021-01-07 04:16:42,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 04:16:42,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 04:16:42,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 04:16:42,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 04:16:42,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 04:16:39" (1/3) ... [2021-01-07 04:16:42,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5ed7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 04:16:42, skipping insertion in model container [2021-01-07 04:16:42,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:16:40" (2/3) ... [2021-01-07 04:16:42,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5ed7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 04:16:42, skipping insertion in model container [2021-01-07 04:16:42,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 04:16:42" (3/3) ... [2021-01-07 04:16:42,547 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test7-1.i [2021-01-07 04:16:42,554 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 04:16:42,560 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-07 04:16:42,581 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-01-07 04:16:42,612 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 04:16:42,612 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-07 04:16:42,612 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 04:16:42,612 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 04:16:42,612 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 04:16:42,613 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 04:16:42,613 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 04:16:42,613 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 04:16:42,635 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2021-01-07 04:16:42,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-07 04:16:42,641 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:42,642 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:16:42,643 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:42,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:42,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1366407864, now seen corresponding path program 1 times [2021-01-07 04:16:42,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:42,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780274404] [2021-01-07 04:16:42,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:16:42,843 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 04:16:42,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780274404] [2021-01-07 04:16:42,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:16:42,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 04:16:42,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175542477] [2021-01-07 04:16:42,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-07 04:16:42,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:16:42,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-07 04:16:42,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 04:16:42,870 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 2 states. [2021-01-07 04:16:42,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:16:42,918 INFO L93 Difference]: Finished difference Result 361 states and 609 transitions. [2021-01-07 04:16:42,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-07 04:16:42,919 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-01-07 04:16:42,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:16:42,933 INFO L225 Difference]: With dead ends: 361 [2021-01-07 04:16:42,933 INFO L226 Difference]: Without dead ends: 177 [2021-01-07 04:16:42,938 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 04:16:42,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-01-07 04:16:42,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2021-01-07 04:16:42,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2021-01-07 04:16:42,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 232 transitions. [2021-01-07 04:16:42,992 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 232 transitions. Word has length 8 [2021-01-07 04:16:42,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:16:42,992 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 232 transitions. [2021-01-07 04:16:42,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-07 04:16:42,993 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 232 transitions. [2021-01-07 04:16:42,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-07 04:16:42,993 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:42,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:16:42,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 04:16:42,994 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:42,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:42,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1136278917, now seen corresponding path program 1 times [2021-01-07 04:16:42,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:42,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10677305] [2021-01-07 04:16:42,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:16:43,127 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 04:16:43,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10677305] [2021-01-07 04:16:43,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:16:43,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:16:43,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175355804] [2021-01-07 04:16:43,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:16:43,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:16:43,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:16:43,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:16:43,132 INFO L87 Difference]: Start difference. First operand 177 states and 232 transitions. Second operand 4 states. [2021-01-07 04:16:43,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:16:43,625 INFO L93 Difference]: Finished difference Result 382 states and 501 transitions. [2021-01-07 04:16:43,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:16:43,626 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-01-07 04:16:43,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:16:43,629 INFO L225 Difference]: With dead ends: 382 [2021-01-07 04:16:43,629 INFO L226 Difference]: Without dead ends: 295 [2021-01-07 04:16:43,631 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 04:16:43,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-01-07 04:16:43,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 179. [2021-01-07 04:16:43,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2021-01-07 04:16:43,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 234 transitions. [2021-01-07 04:16:43,648 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 234 transitions. Word has length 10 [2021-01-07 04:16:43,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:16:43,648 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 234 transitions. [2021-01-07 04:16:43,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:16:43,648 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 234 transitions. [2021-01-07 04:16:43,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-07 04:16:43,651 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:43,651 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 04:16:43,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 04:16:43,652 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:43,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:43,653 INFO L82 PathProgramCache]: Analyzing trace with hash -2095912151, now seen corresponding path program 1 times [2021-01-07 04:16:43,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:43,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645741410] [2021-01-07 04:16:43,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:43,679 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:16:43,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [667227940] [2021-01-07 04:16:43,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:16:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:16:43,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:16:43,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:16:44,014 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 04:16:44,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645741410] [2021-01-07 04:16:44,015 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:16:44,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667227940] [2021-01-07 04:16:44,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:16:44,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:16:44,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392001583] [2021-01-07 04:16:44,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 04:16:44,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:16:44,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 04:16:44,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:16:44,022 INFO L87 Difference]: Start difference. First operand 179 states and 234 transitions. Second operand 3 states. [2021-01-07 04:16:44,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:16:44,121 INFO L93 Difference]: Finished difference Result 375 states and 495 transitions. [2021-01-07 04:16:44,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:16:44,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2021-01-07 04:16:44,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:16:44,125 INFO L225 Difference]: With dead ends: 375 [2021-01-07 04:16:44,126 INFO L226 Difference]: Without dead ends: 200 [2021-01-07 04:16:44,132 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 04:16:44,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-01-07 04:16:44,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 199. [2021-01-07 04:16:44,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2021-01-07 04:16:44,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 254 transitions. [2021-01-07 04:16:44,162 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 254 transitions. Word has length 62 [2021-01-07 04:16:44,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:16:44,162 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 254 transitions. [2021-01-07 04:16:44,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 04:16:44,163 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 254 transitions. [2021-01-07 04:16:44,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-07 04:16:44,170 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:44,171 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 04:16:44,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-01-07 04:16:44,387 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:44,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:44,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1305568807, now seen corresponding path program 1 times [2021-01-07 04:16:44,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:44,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921840550] [2021-01-07 04:16:44,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:44,411 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:16:44,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1646550301] [2021-01-07 04:16:44,412 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 04:16:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:16:44,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:16:44,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:16:44,703 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 04:16:44,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921840550] [2021-01-07 04:16:44,704 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:16:44,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646550301] [2021-01-07 04:16:44,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:16:44,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:16:44,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685907809] [2021-01-07 04:16:44,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:16:44,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:16:44,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:16:44,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:16:44,709 INFO L87 Difference]: Start difference. First operand 199 states and 254 transitions. Second operand 4 states. [2021-01-07 04:16:44,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:16:44,805 INFO L93 Difference]: Finished difference Result 386 states and 496 transitions. [2021-01-07 04:16:44,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:16:44,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2021-01-07 04:16:44,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:16:44,807 INFO L225 Difference]: With dead ends: 386 [2021-01-07 04:16:44,807 INFO L226 Difference]: Without dead ends: 191 [2021-01-07 04:16:44,809 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 04:16:44,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-01-07 04:16:44,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 185. [2021-01-07 04:16:44,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2021-01-07 04:16:44,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 233 transitions. [2021-01-07 04:16:44,817 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 233 transitions. Word has length 62 [2021-01-07 04:16:44,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:16:44,817 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 233 transitions. [2021-01-07 04:16:44,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:16:44,818 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 233 transitions. [2021-01-07 04:16:44,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-07 04:16:44,820 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:44,820 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 04:16:45,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:16:45,034 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:45,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:45,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1777715509, now seen corresponding path program 1 times [2021-01-07 04:16:45,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:45,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934385503] [2021-01-07 04:16:45,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:45,055 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:16:45,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1833791388] [2021-01-07 04:16:45,055 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 04:16:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:16:45,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjunts are in the unsatisfiable core [2021-01-07 04:16:45,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:16:45,329 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 04:16:45,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934385503] [2021-01-07 04:16:45,329 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:16:45,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833791388] [2021-01-07 04:16:45,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:16:45,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:16:45,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619129875] [2021-01-07 04:16:45,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 04:16:45,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:16:45,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 04:16:45,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:16:45,332 INFO L87 Difference]: Start difference. First operand 185 states and 233 transitions. Second operand 3 states. [2021-01-07 04:16:45,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:16:45,487 INFO L93 Difference]: Finished difference Result 479 states and 602 transitions. [2021-01-07 04:16:45,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:16:45,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2021-01-07 04:16:45,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:16:45,490 INFO L225 Difference]: With dead ends: 479 [2021-01-07 04:16:45,490 INFO L226 Difference]: Without dead ends: 298 [2021-01-07 04:16:45,491 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 04:16:45,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-01-07 04:16:45,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 291. [2021-01-07 04:16:45,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2021-01-07 04:16:45,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 366 transitions. [2021-01-07 04:16:45,502 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 366 transitions. Word has length 62 [2021-01-07 04:16:45,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:16:45,503 INFO L481 AbstractCegarLoop]: Abstraction has 291 states and 366 transitions. [2021-01-07 04:16:45,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 04:16:45,503 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 366 transitions. [2021-01-07 04:16:45,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-07 04:16:45,505 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:45,505 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 04:16:45,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:16:45,722 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:45,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:45,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1300403396, now seen corresponding path program 1 times [2021-01-07 04:16:45,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:45,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736040433] [2021-01-07 04:16:45,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:45,766 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:16:45,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234980997] [2021-01-07 04:16:45,769 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 04:16:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:16:45,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:16:45,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:16:46,066 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 04:16:46,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736040433] [2021-01-07 04:16:46,067 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:16:46,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234980997] [2021-01-07 04:16:46,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:16:46,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:16:46,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578512835] [2021-01-07 04:16:46,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 04:16:46,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:16:46,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 04:16:46,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:16:46,070 INFO L87 Difference]: Start difference. First operand 291 states and 366 transitions. Second operand 3 states. [2021-01-07 04:16:46,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:16:46,098 INFO L93 Difference]: Finished difference Result 536 states and 683 transitions. [2021-01-07 04:16:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:16:46,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2021-01-07 04:16:46,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:16:46,101 INFO L225 Difference]: With dead ends: 536 [2021-01-07 04:16:46,101 INFO L226 Difference]: Without dead ends: 293 [2021-01-07 04:16:46,103 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 04:16:46,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-01-07 04:16:46,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2021-01-07 04:16:46,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2021-01-07 04:16:46,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 368 transitions. [2021-01-07 04:16:46,114 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 368 transitions. Word has length 69 [2021-01-07 04:16:46,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:16:46,115 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 368 transitions. [2021-01-07 04:16:46,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 04:16:46,115 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 368 transitions. [2021-01-07 04:16:46,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-01-07 04:16:46,117 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:46,117 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 04:16:46,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:16:46,331 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:46,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:46,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1522577957, now seen corresponding path program 1 times [2021-01-07 04:16:46,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:46,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643431058] [2021-01-07 04:16:46,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:46,376 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:16:46,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1238716611] [2021-01-07 04:16:46,376 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 04:16:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:16:46,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-07 04:16:46,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:16:46,627 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 04:16:46,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643431058] [2021-01-07 04:16:46,628 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:16:46,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238716611] [2021-01-07 04:16:46,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:16:46,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2021-01-07 04:16:46,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282573563] [2021-01-07 04:16:46,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:16:46,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:16:46,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:16:46,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:16:46,630 INFO L87 Difference]: Start difference. First operand 293 states and 368 transitions. Second operand 4 states. [2021-01-07 04:16:46,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:16:46,669 INFO L93 Difference]: Finished difference Result 540 states and 687 transitions. [2021-01-07 04:16:46,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:16:46,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2021-01-07 04:16:46,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:16:46,671 INFO L225 Difference]: With dead ends: 540 [2021-01-07 04:16:46,672 INFO L226 Difference]: Without dead ends: 295 [2021-01-07 04:16:46,673 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 04:16:46,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-01-07 04:16:46,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2021-01-07 04:16:46,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2021-01-07 04:16:46,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 370 transitions. [2021-01-07 04:16:46,683 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 370 transitions. Word has length 71 [2021-01-07 04:16:46,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:16:46,683 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 370 transitions. [2021-01-07 04:16:46,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:16:46,683 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 370 transitions. [2021-01-07 04:16:46,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-01-07 04:16:46,684 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:46,685 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 04:16:46,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-01-07 04:16:46,900 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:46,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:46,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1094780836, now seen corresponding path program 2 times [2021-01-07 04:16:46,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:46,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632270061] [2021-01-07 04:16:46,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:46,926 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:16:46,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1223088355] [2021-01-07 04:16:46,927 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 04:16:47,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-07 04:16:47,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 04:16:47,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:16:47,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:16:47,177 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 04:16:47,178 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 04:16:47,182 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 04:16:47,187 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 04:16:47,188 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2021-01-07 04:16:47,208 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 04:16:47,209 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 04:16:47,211 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 04:16:47,212 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 04:16:47,213 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2021-01-07 04:16:47,223 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 04:16:47,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632270061] [2021-01-07 04:16:47,224 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:16:47,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223088355] [2021-01-07 04:16:47,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:16:47,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:16:47,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890152260] [2021-01-07 04:16:47,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:16:47,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:16:47,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:16:47,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:16:47,234 INFO L87 Difference]: Start difference. First operand 295 states and 370 transitions. Second operand 4 states. [2021-01-07 04:16:47,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:16:47,680 INFO L93 Difference]: Finished difference Result 383 states and 487 transitions. [2021-01-07 04:16:47,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:16:47,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 73 [2021-01-07 04:16:47,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:16:47,683 INFO L225 Difference]: With dead ends: 383 [2021-01-07 04:16:47,684 INFO L226 Difference]: Without dead ends: 379 [2021-01-07 04:16:47,684 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 04:16:47,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-01-07 04:16:47,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 297. [2021-01-07 04:16:47,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2021-01-07 04:16:47,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 372 transitions. [2021-01-07 04:16:47,697 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 372 transitions. Word has length 73 [2021-01-07 04:16:47,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:16:47,698 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 372 transitions. [2021-01-07 04:16:47,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:16:47,698 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 372 transitions. [2021-01-07 04:16:47,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-07 04:16:47,699 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:47,699 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 04:16:47,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:16:47,914 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:47,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:47,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1878713718, now seen corresponding path program 1 times [2021-01-07 04:16:47,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:47,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076471512] [2021-01-07 04:16:47,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:47,950 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:16:47,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [700752291] [2021-01-07 04:16:47,951 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 04:16:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:16:48,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:16:48,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:16:48,248 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 04:16:48,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076471512] [2021-01-07 04:16:48,249 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:16:48,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700752291] [2021-01-07 04:16:48,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:16:48,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:16:48,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797022618] [2021-01-07 04:16:48,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 04:16:48,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:16:48,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 04:16:48,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:16:48,251 INFO L87 Difference]: Start difference. First operand 297 states and 372 transitions. Second operand 3 states. [2021-01-07 04:16:48,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:16:48,332 INFO L93 Difference]: Finished difference Result 487 states and 631 transitions. [2021-01-07 04:16:48,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:16:48,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2021-01-07 04:16:48,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:16:48,336 INFO L225 Difference]: With dead ends: 487 [2021-01-07 04:16:48,336 INFO L226 Difference]: Without dead ends: 339 [2021-01-07 04:16:48,337 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 04:16:48,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2021-01-07 04:16:48,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2021-01-07 04:16:48,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2021-01-07 04:16:48,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 412 transitions. [2021-01-07 04:16:48,350 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 412 transitions. Word has length 107 [2021-01-07 04:16:48,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:16:48,350 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 412 transitions. [2021-01-07 04:16:48,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 04:16:48,351 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 412 transitions. [2021-01-07 04:16:48,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-07 04:16:48,352 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:48,352 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 04:16:48,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:16:48,567 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:48,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:48,568 INFO L82 PathProgramCache]: Analyzing trace with hash 2096048526, now seen corresponding path program 1 times [2021-01-07 04:16:48,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:48,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817195956] [2021-01-07 04:16:48,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:48,587 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:16:48,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1123157296] [2021-01-07 04:16:48,588 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 04:16:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:16:48,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:16:48,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:16:48,893 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 04:16:48,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817195956] [2021-01-07 04:16:48,894 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:16:48,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123157296] [2021-01-07 04:16:48,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:16:48,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:16:48,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838652682] [2021-01-07 04:16:48,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:16:48,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:16:48,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:16:48,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:16:48,897 INFO L87 Difference]: Start difference. First operand 337 states and 412 transitions. Second operand 4 states. [2021-01-07 04:16:48,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:16:48,975 INFO L93 Difference]: Finished difference Result 502 states and 626 transitions. [2021-01-07 04:16:48,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:16:48,976 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2021-01-07 04:16:48,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:16:48,978 INFO L225 Difference]: With dead ends: 502 [2021-01-07 04:16:48,978 INFO L226 Difference]: Without dead ends: 314 [2021-01-07 04:16:48,979 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 04:16:48,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-01-07 04:16:48,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 309. [2021-01-07 04:16:48,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2021-01-07 04:16:48,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 370 transitions. [2021-01-07 04:16:48,993 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 370 transitions. Word has length 107 [2021-01-07 04:16:48,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:16:48,994 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 370 transitions. [2021-01-07 04:16:48,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:16:48,995 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 370 transitions. [2021-01-07 04:16:48,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-07 04:16:48,996 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:48,996 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 04:16:49,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-01-07 04:16:49,212 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:49,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:49,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1213199680, now seen corresponding path program 1 times [2021-01-07 04:16:49,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:49,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934017999] [2021-01-07 04:16:49,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:49,239 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:16:49,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [946526578] [2021-01-07 04:16:49,240 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 04:16:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:16:49,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 5 conjunts are in the unsatisfiable core [2021-01-07 04:16:49,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:16:49,560 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 04:16:49,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934017999] [2021-01-07 04:16:49,561 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:16:49,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946526578] [2021-01-07 04:16:49,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:16:49,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-01-07 04:16:49,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084914434] [2021-01-07 04:16:49,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 04:16:49,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:16:49,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 04:16:49,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-07 04:16:49,563 INFO L87 Difference]: Start difference. First operand 309 states and 370 transitions. Second operand 5 states. [2021-01-07 04:16:49,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:16:49,602 INFO L93 Difference]: Finished difference Result 572 states and 691 transitions. [2021-01-07 04:16:49,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 04:16:49,602 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2021-01-07 04:16:49,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:16:49,604 INFO L225 Difference]: With dead ends: 572 [2021-01-07 04:16:49,604 INFO L226 Difference]: Without dead ends: 311 [2021-01-07 04:16:49,605 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 04:16:49,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-01-07 04:16:49,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2021-01-07 04:16:49,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2021-01-07 04:16:49,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 372 transitions. [2021-01-07 04:16:49,617 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 372 transitions. Word has length 107 [2021-01-07 04:16:49,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:16:49,618 INFO L481 AbstractCegarLoop]: Abstraction has 311 states and 372 transitions. [2021-01-07 04:16:49,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 04:16:49,618 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 372 transitions. [2021-01-07 04:16:49,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-07 04:16:49,619 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:49,619 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 04:16:49,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:16:49,835 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:49,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:49,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1565711905, now seen corresponding path program 2 times [2021-01-07 04:16:49,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:49,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888943739] [2021-01-07 04:16:49,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:49,853 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:16:49,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502173955] [2021-01-07 04:16:49,854 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 04:16:50,096 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-07 04:16:50,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 04:16:50,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-07 04:16:50,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:16:50,235 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 04:16:50,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888943739] [2021-01-07 04:16:50,235 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:16:50,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502173955] [2021-01-07 04:16:50,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:16:50,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-01-07 04:16:50,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442660646] [2021-01-07 04:16:50,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 04:16:50,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:16:50,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 04:16:50,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-07 04:16:50,238 INFO L87 Difference]: Start difference. First operand 311 states and 372 transitions. Second operand 6 states. [2021-01-07 04:16:50,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:16:50,285 INFO L93 Difference]: Finished difference Result 576 states and 695 transitions. [2021-01-07 04:16:50,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 04:16:50,286 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2021-01-07 04:16:50,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:16:50,289 INFO L225 Difference]: With dead ends: 576 [2021-01-07 04:16:50,289 INFO L226 Difference]: Without dead ends: 313 [2021-01-07 04:16:50,290 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 04:16:50,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2021-01-07 04:16:50,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2021-01-07 04:16:50,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2021-01-07 04:16:50,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 374 transitions. [2021-01-07 04:16:50,304 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 374 transitions. Word has length 109 [2021-01-07 04:16:50,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:16:50,304 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 374 transitions. [2021-01-07 04:16:50,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 04:16:50,304 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 374 transitions. [2021-01-07 04:16:50,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-01-07 04:16:50,306 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:50,306 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 04:16:50,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:16:50,521 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:50,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:50,521 INFO L82 PathProgramCache]: Analyzing trace with hash -383989728, now seen corresponding path program 3 times [2021-01-07 04:16:50,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:50,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271201403] [2021-01-07 04:16:50,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:50,560 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:16:50,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1895079001] [2021-01-07 04:16:50,561 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 04:16:50,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-01-07 04:16:50,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 04:16:50,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 9 conjunts are in the unsatisfiable core [2021-01-07 04:16:50,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:16:50,922 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 04:16:50,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271201403] [2021-01-07 04:16:50,922 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:16:50,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895079001] [2021-01-07 04:16:50,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:16:50,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:16:50,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295868616] [2021-01-07 04:16:50,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:16:50,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:16:50,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:16:50,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:16:50,925 INFO L87 Difference]: Start difference. First operand 313 states and 374 transitions. Second operand 4 states. [2021-01-07 04:16:51,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:16:51,307 INFO L93 Difference]: Finished difference Result 644 states and 770 transitions. [2021-01-07 04:16:51,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:16:51,307 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2021-01-07 04:16:51,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:16:51,310 INFO L225 Difference]: With dead ends: 644 [2021-01-07 04:16:51,310 INFO L226 Difference]: Without dead ends: 379 [2021-01-07 04:16:51,311 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 04:16:51,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-01-07 04:16:51,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 372. [2021-01-07 04:16:51,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2021-01-07 04:16:51,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 442 transitions. [2021-01-07 04:16:51,352 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 442 transitions. Word has length 111 [2021-01-07 04:16:51,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:16:51,352 INFO L481 AbstractCegarLoop]: Abstraction has 372 states and 442 transitions. [2021-01-07 04:16:51,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:16:51,353 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 442 transitions. [2021-01-07 04:16:51,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-01-07 04:16:51,354 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:51,354 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 04:16:51,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-01-07 04:16:51,568 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:51,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:51,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1107954682, now seen corresponding path program 1 times [2021-01-07 04:16:51,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:51,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675107494] [2021-01-07 04:16:51,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:51,588 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:16:51,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2007299288] [2021-01-07 04:16:51,589 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 04:16:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:16:51,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 7 conjunts are in the unsatisfiable core [2021-01-07 04:16:51,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:16:51,970 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 04:16:51,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675107494] [2021-01-07 04:16:51,971 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:16:51,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007299288] [2021-01-07 04:16:51,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:16:51,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-01-07 04:16:51,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537626940] [2021-01-07 04:16:51,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-07 04:16:51,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:16:51,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-07 04:16:51,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-01-07 04:16:51,973 INFO L87 Difference]: Start difference. First operand 372 states and 442 transitions. Second operand 7 states. [2021-01-07 04:16:52,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:16:52,035 INFO L93 Difference]: Finished difference Result 691 states and 827 transitions. [2021-01-07 04:16:52,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 04:16:52,036 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2021-01-07 04:16:52,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:16:52,038 INFO L225 Difference]: With dead ends: 691 [2021-01-07 04:16:52,038 INFO L226 Difference]: Without dead ends: 374 [2021-01-07 04:16:52,039 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 04:16:52,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-01-07 04:16:52,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2021-01-07 04:16:52,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2021-01-07 04:16:52,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 444 transitions. [2021-01-07 04:16:52,054 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 444 transitions. Word has length 118 [2021-01-07 04:16:52,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:16:52,055 INFO L481 AbstractCegarLoop]: Abstraction has 374 states and 444 transitions. [2021-01-07 04:16:52,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-07 04:16:52,055 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 444 transitions. [2021-01-07 04:16:52,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-01-07 04:16:52,056 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:52,057 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 04:16:52,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-01-07 04:16:52,274 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:52,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:52,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1744267321, now seen corresponding path program 2 times [2021-01-07 04:16:52,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:52,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215627103] [2021-01-07 04:16:52,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:52,295 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:16:52,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365664542] [2021-01-07 04:16:52,301 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 04:16:52,559 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-07 04:16:52,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 04:16:52,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-07 04:16:52,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:16:52,742 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 04:16:52,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215627103] [2021-01-07 04:16:52,743 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:16:52,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365664542] [2021-01-07 04:16:52,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:16:52,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-01-07 04:16:52,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057798494] [2021-01-07 04:16:52,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-07 04:16:52,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:16:52,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-07 04:16:52,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-01-07 04:16:52,745 INFO L87 Difference]: Start difference. First operand 374 states and 444 transitions. Second operand 8 states. [2021-01-07 04:16:52,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:16:52,800 INFO L93 Difference]: Finished difference Result 694 states and 830 transitions. [2021-01-07 04:16:52,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 04:16:52,801 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2021-01-07 04:16:52,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:16:52,803 INFO L225 Difference]: With dead ends: 694 [2021-01-07 04:16:52,803 INFO L226 Difference]: Without dead ends: 376 [2021-01-07 04:16:52,804 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 04:16:52,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-01-07 04:16:52,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2021-01-07 04:16:52,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2021-01-07 04:16:52,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 446 transitions. [2021-01-07 04:16:52,820 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 446 transitions. Word has length 120 [2021-01-07 04:16:52,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:16:52,820 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 446 transitions. [2021-01-07 04:16:52,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-07 04:16:52,820 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 446 transitions. [2021-01-07 04:16:52,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-01-07 04:16:52,821 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:16:52,822 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 04:16:53,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-01-07 04:16:53,036 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:16:53,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:16:53,037 INFO L82 PathProgramCache]: Analyzing trace with hash -994826982, now seen corresponding path program 3 times [2021-01-07 04:16:53,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:16:53,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086527470] [2021-01-07 04:16:53,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:16:53,052 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:16:53,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716270763] [2021-01-07 04:16:53,053 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