/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 15:58:11,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 15:58:11,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 15:58:11,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-23 15:58:11,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 15:58:11,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 15:58:11,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 15:58:11,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 15:58:11,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 15:58:11,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 15:58:11,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 15:58:11,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 15:58:11,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 15:58:11,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 15:58:11,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 15:58:11,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 15:58:11,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 15:58:11,725 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 15:58:11,754 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 15:58:11,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 15:58:11,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 15:58:11,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 15:58:11,757 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 15:58:11,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 15:58:11,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 15:58:11,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 15:58:11,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 15:58:11,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 15:58:11,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 15:58:11,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 15:58:11,759 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 15:58:11,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 15:58:11,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 15:58:11,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 15:58:11,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 15:58:11,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 15:58:11,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 15:58:11,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 15:58:11,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 15:58:11,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 15:58:11,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 15:58:11,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 15:58:11,761 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 15:58:11,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 15:58:12,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 15:58:12,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 15:58:12,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 15:58:12,280 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 15:58:12,281 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 15:58:12,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2020-12-23 15:58:12,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6fe8b4aad/3e67a59dd7ae49a09edf7d427a7b450d/FLAG8c662a471 [2020-12-23 15:58:13,260 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 15:58:13,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2020-12-23 15:58:13,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6fe8b4aad/3e67a59dd7ae49a09edf7d427a7b450d/FLAG8c662a471 [2020-12-23 15:58:13,374 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6fe8b4aad/3e67a59dd7ae49a09edf7d427a7b450d [2020-12-23 15:58:13,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 15:58:13,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 15:58:13,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 15:58:13,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 15:58:13,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 15:58:13,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:58:13" (1/1) ... [2020-12-23 15:58:13,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ab5ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:58:13, skipping insertion in model container [2020-12-23 15:58:13,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:58:13" (1/1) ... [2020-12-23 15:58:13,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 15:58:13,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 15:58:14,350 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44118,44131] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~alt_malloc_sizes~0,GLOBAL],[IdentifierExpression[#t~post33,]]] [2020-12-23 15:58:14,369 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44660,44673] 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~mem70,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem70,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem71,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem71,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem72,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem72,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem73,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem73,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem74,],base],StructAccessExpression[IdentifierExpression[#t~mem74,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem76,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem76,],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~mem88,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem88,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem89,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem89,],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~mem101,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem101,],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~mem112,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem112,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem122,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem122,],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~mem148,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem148,],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~mem158,],base],StructAccessExpression[IdentifierExpression[#t~mem158,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem159,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem159,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem169,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem169,],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~mem224,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem224,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem229,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem229,],offset],IdentifierExpression[#t~mem231,]]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem235,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem235,],offset],IdentifierExpression[#t~mem237,]]]]] 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~mem249,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem249,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem252,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem252,],offset]]]] [2020-12-23 15:58:14,531 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56247,56260] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] [2020-12-23 15:58:14,533 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56368,56381] [2020-12-23 15:58:14,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 15:58:14,559 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 15:58:14,620 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44118,44131] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#alt_malloc_sizes~0,GLOBAL],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#alt_malloc_sizes~0,GLOBAL],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[#t~post33,]]]]] [2020-12-23 15:58:14,630 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44660,44673] 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~mem76,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem76,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem77,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem77,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem78,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem78,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem79,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem79,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem80,],base],StructAccessExpression[IdentifierExpression[#t~mem80,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem82,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem82,],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~mem94,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem94,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem95,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem95,],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~mem107,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem107,],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~mem120,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem120,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem130,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem130,],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~mem157,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem157,],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~mem167,],base],StructAccessExpression[IdentifierExpression[#t~mem167,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem169,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem169,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem179,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem179,],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~mem236,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem236,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem241,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem241,],offset],IdentifierExpression[#t~mem243,]]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem247,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem247,],offset],IdentifierExpression[#t~mem249,]]]]] 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~mem261,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem261,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem264,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem264,],offset]]]] [2020-12-23 15:58:14,823 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56247,56260] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] [2020-12-23 15:58:14,825 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56368,56381] [2020-12-23 15:58:14,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 15:58:15,001 INFO L208 MainTranslator]: Completed translation [2020-12-23 15:58:15,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:58:15 WrapperNode [2020-12-23 15:58:15,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 15:58:15,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 15:58:15,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 15:58:15,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 15:58:15,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:58:15" (1/1) ... [2020-12-23 15:58:15,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:58:15" (1/1) ... [2020-12-23 15:58:15,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 15:58:15,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 15:58:15,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 15:58:15,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 15:58:15,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:58:15" (1/1) ... [2020-12-23 15:58:15,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:58:15" (1/1) ... [2020-12-23 15:58:15,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:58:15" (1/1) ... [2020-12-23 15:58:15,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:58:15" (1/1) ... [2020-12-23 15:58:15,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:58:15" (1/1) ... [2020-12-23 15:58:15,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:58:15" (1/1) ... [2020-12-23 15:58:15,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:58:15" (1/1) ... [2020-12-23 15:58:15,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 15:58:15,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 15:58:15,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 15:58:15,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 15:58:15,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:58:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 15:58:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 15:58:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-12-23 15:58:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 15:58:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 15:58:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 15:58:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 15:58:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 15:58:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 15:58:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 15:58:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 15:58:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 15:58:17,626 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 15:58:17,626 INFO L299 CfgBuilder]: Removed 111 assume(true) statements. [2020-12-23 15:58:17,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:58:17 BoogieIcfgContainer [2020-12-23 15:58:17,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 15:58:17,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 15:58:17,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 15:58:17,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 15:58:17,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:58:13" (1/3) ... [2020-12-23 15:58:17,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7185a626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:58:17, skipping insertion in model container [2020-12-23 15:58:17,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:58:15" (2/3) ... [2020-12-23 15:58:17,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7185a626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:58:17, skipping insertion in model container [2020-12-23 15:58:17,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:58:17" (3/3) ... [2020-12-23 15:58:17,642 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-1.i [2020-12-23 15:58:17,649 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 15:58:17,662 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-12-23 15:58:17,683 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-12-23 15:58:17,714 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 15:58:17,714 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 15:58:17,714 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 15:58:17,715 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 15:58:17,715 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 15:58:17,715 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 15:58:17,715 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 15:58:17,715 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 15:58:17,740 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2020-12-23 15:58:17,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 15:58:17,746 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:58:17,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:58:17,748 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:58:17,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:58:17,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1030621672, now seen corresponding path program 1 times [2020-12-23 15:58:17,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:58:17,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597887756] [2020-12-23 15:58:17,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:58:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:58:17,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:58:17,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597887756] [2020-12-23 15:58:17,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:58:17,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 15:58:17,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034669034] [2020-12-23 15:58:17,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 15:58:17,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:58:17,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 15:58:17,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 15:58:17,999 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 2 states. [2020-12-23 15:58:18,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:58:18,077 INFO L93 Difference]: Finished difference Result 466 states and 739 transitions. [2020-12-23 15:58:18,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 15:58:18,078 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-23 15:58:18,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:58:18,094 INFO L225 Difference]: With dead ends: 466 [2020-12-23 15:58:18,094 INFO L226 Difference]: Without dead ends: 227 [2020-12-23 15:58:18,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 15:58:18,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-12-23 15:58:18,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2020-12-23 15:58:18,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-12-23 15:58:18,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 285 transitions. [2020-12-23 15:58:18,172 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 285 transitions. Word has length 8 [2020-12-23 15:58:18,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:58:18,173 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 285 transitions. [2020-12-23 15:58:18,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 15:58:18,173 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 285 transitions. [2020-12-23 15:58:18,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 15:58:18,173 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:58:18,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:58:18,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 15:58:18,177 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:58:18,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:58:18,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1260005844, now seen corresponding path program 1 times [2020-12-23 15:58:18,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:58:18,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987757543] [2020-12-23 15:58:18,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:58:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:58:18,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:58:18,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987757543] [2020-12-23 15:58:18,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:58:18,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:58:18,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386060545] [2020-12-23 15:58:18,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:58:18,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:58:18,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:58:18,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:58:18,330 INFO L87 Difference]: Start difference. First operand 227 states and 285 transitions. Second operand 4 states. [2020-12-23 15:58:18,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:58:18,915 INFO L93 Difference]: Finished difference Result 479 states and 601 transitions. [2020-12-23 15:58:18,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:58:18,916 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-23 15:58:18,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:58:18,919 INFO L225 Difference]: With dead ends: 479 [2020-12-23 15:58:18,919 INFO L226 Difference]: Without dead ends: 369 [2020-12-23 15:58:18,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:58:18,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-12-23 15:58:18,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 229. [2020-12-23 15:58:18,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-12-23 15:58:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 287 transitions. [2020-12-23 15:58:18,946 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 287 transitions. Word has length 10 [2020-12-23 15:58:18,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:58:18,947 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 287 transitions. [2020-12-23 15:58:18,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:58:18,947 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 287 transitions. [2020-12-23 15:58:18,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-23 15:58:18,948 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:58:18,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:58:18,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 15:58:18,949 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:58:18,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:58:18,950 INFO L82 PathProgramCache]: Analyzing trace with hash -602340381, now seen corresponding path program 1 times [2020-12-23 15:58:18,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:58:18,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553752978] [2020-12-23 15:58:18,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:58:18,981 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:58:18,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2109274362] [2020-12-23 15:58:18,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:58:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:58:19,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:58:19,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:58:19,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:58:19,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553752978] [2020-12-23 15:58:19,255 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:58:19,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109274362] [2020-12-23 15:58:19,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:58:19,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:58:19,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942070431] [2020-12-23 15:58:19,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:58:19,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:58:19,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:58:19,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:58:19,258 INFO L87 Difference]: Start difference. First operand 229 states and 287 transitions. Second operand 3 states. [2020-12-23 15:58:19,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:58:19,367 INFO L93 Difference]: Finished difference Result 475 states and 601 transitions. [2020-12-23 15:58:19,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:58:19,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-12-23 15:58:19,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:58:19,369 INFO L225 Difference]: With dead ends: 475 [2020-12-23 15:58:19,369 INFO L226 Difference]: Without dead ends: 250 [2020-12-23 15:58:19,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:58:19,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-12-23 15:58:19,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 249. [2020-12-23 15:58:19,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-12-23 15:58:19,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 307 transitions. [2020-12-23 15:58:19,385 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 307 transitions. Word has length 44 [2020-12-23 15:58:19,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:58:19,386 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 307 transitions. [2020-12-23 15:58:19,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:58:19,386 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 307 transitions. [2020-12-23 15:58:19,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-23 15:58:19,388 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:58:19,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:58:19,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-23 15:58:19,603 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:58:19,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:58:19,604 INFO L82 PathProgramCache]: Analyzing trace with hash -821195099, now seen corresponding path program 1 times [2020-12-23 15:58:19,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:58:19,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031978539] [2020-12-23 15:58:19,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:58:19,660 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:58:19,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689611481] [2020-12-23 15:58:19,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:58:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:58:19,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:58:19,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:58:19,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:58:19,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031978539] [2020-12-23 15:58:19,929 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:58:19,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689611481] [2020-12-23 15:58:19,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:58:19,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:58:19,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635168968] [2020-12-23 15:58:19,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:58:19,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:58:19,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:58:19,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:58:19,934 INFO L87 Difference]: Start difference. First operand 249 states and 307 transitions. Second operand 4 states. [2020-12-23 15:58:20,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:58:20,046 INFO L93 Difference]: Finished difference Result 487 states and 603 transitions. [2020-12-23 15:58:20,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:58:20,047 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-12-23 15:58:20,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:58:20,048 INFO L225 Difference]: With dead ends: 487 [2020-12-23 15:58:20,049 INFO L226 Difference]: Without dead ends: 242 [2020-12-23 15:58:20,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:58:20,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-12-23 15:58:20,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 235. [2020-12-23 15:58:20,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-12-23 15:58:20,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 286 transitions. [2020-12-23 15:58:20,069 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 286 transitions. Word has length 44 [2020-12-23 15:58:20,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:58:20,070 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 286 transitions. [2020-12-23 15:58:20,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:58:20,070 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 286 transitions. [2020-12-23 15:58:20,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-23 15:58:20,074 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:58:20,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:58:20,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:58:20,289 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:58:20,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:58:20,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1704043945, now seen corresponding path program 1 times [2020-12-23 15:58:20,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:58:20,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034688460] [2020-12-23 15:58:20,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:58:20,312 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:58:20,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721903580] [2020-12-23 15:58:20,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:58:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:58:20,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-23 15:58:20,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:58:20,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:58:20,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034688460] [2020-12-23 15:58:20,659 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:58:20,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721903580] [2020-12-23 15:58:20,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:58:20,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 15:58:20,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130279005] [2020-12-23 15:58:20,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 15:58:20,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:58:20,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 15:58:20,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 15:58:20,662 INFO L87 Difference]: Start difference. First operand 235 states and 286 transitions. Second operand 6 states. [2020-12-23 15:58:21,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:58:21,484 INFO L93 Difference]: Finished difference Result 447 states and 550 transitions. [2020-12-23 15:58:21,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 15:58:21,485 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-12-23 15:58:21,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:58:21,488 INFO L225 Difference]: With dead ends: 447 [2020-12-23 15:58:21,488 INFO L226 Difference]: Without dead ends: 445 [2020-12-23 15:58:21,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-23 15:58:21,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-12-23 15:58:21,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 233. [2020-12-23 15:58:21,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-12-23 15:58:21,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 284 transitions. [2020-12-23 15:58:21,504 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 284 transitions. Word has length 44 [2020-12-23 15:58:21,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:58:21,505 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 284 transitions. [2020-12-23 15:58:21,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 15:58:21,506 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 284 transitions. [2020-12-23 15:58:21,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 15:58:21,510 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:58:21,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:58:21,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:58:21,712 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:58:21,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:58:21,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1088553020, now seen corresponding path program 1 times [2020-12-23 15:58:21,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:58:21,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030315372] [2020-12-23 15:58:21,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:58:21,749 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:58:21,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1196410401] [2020-12-23 15:58:21,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:58:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:58:22,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 15:58:22,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:58:22,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:58:22,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030315372] [2020-12-23 15:58:22,221 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:58:22,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196410401] [2020-12-23 15:58:22,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:58:22,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:58:22,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320570392] [2020-12-23 15:58:22,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 15:58:22,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:58:22,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 15:58:22,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:58:22,226 INFO L87 Difference]: Start difference. First operand 233 states and 284 transitions. Second operand 5 states. [2020-12-23 15:58:22,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:58:22,377 INFO L93 Difference]: Finished difference Result 940 states and 1155 transitions. [2020-12-23 15:58:22,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 15:58:22,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-12-23 15:58:22,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:58:22,382 INFO L225 Difference]: With dead ends: 940 [2020-12-23 15:58:22,382 INFO L226 Difference]: Without dead ends: 711 [2020-12-23 15:58:22,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:58:22,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2020-12-23 15:58:22,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 325. [2020-12-23 15:58:22,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2020-12-23 15:58:22,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 395 transitions. [2020-12-23 15:58:22,405 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 395 transitions. Word has length 51 [2020-12-23 15:58:22,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:58:22,406 INFO L481 AbstractCegarLoop]: Abstraction has 325 states and 395 transitions. [2020-12-23 15:58:22,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 15:58:22,407 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 395 transitions. [2020-12-23 15:58:22,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 15:58:22,410 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:58:22,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:58:22,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:58:22,624 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:58:22,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:58:22,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1193587178, now seen corresponding path program 1 times [2020-12-23 15:58:22,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:58:22,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312040806] [2020-12-23 15:58:22,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:58:22,674 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:58:22,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1251599226] [2020-12-23 15:58:22,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:58:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:58:22,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 15:58:22,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:58:22,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:58:22,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312040806] [2020-12-23 15:58:22,991 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:58:22,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251599226] [2020-12-23 15:58:22,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:58:22,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:58:22,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347845887] [2020-12-23 15:58:22,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:58:22,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:58:22,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:58:22,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:58:22,993 INFO L87 Difference]: Start difference. First operand 325 states and 395 transitions. Second operand 3 states. [2020-12-23 15:58:23,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:58:23,134 INFO L93 Difference]: Finished difference Result 686 states and 832 transitions. [2020-12-23 15:58:23,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:58:23,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-12-23 15:58:23,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:58:23,136 INFO L225 Difference]: With dead ends: 686 [2020-12-23 15:58:23,136 INFO L226 Difference]: Without dead ends: 365 [2020-12-23 15:58:23,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:58:23,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-12-23 15:58:23,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 336. [2020-12-23 15:58:23,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-12-23 15:58:23,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 412 transitions. [2020-12-23 15:58:23,153 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 412 transitions. Word has length 54 [2020-12-23 15:58:23,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:58:23,153 INFO L481 AbstractCegarLoop]: Abstraction has 336 states and 412 transitions. [2020-12-23 15:58:23,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:58:23,153 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 412 transitions. [2020-12-23 15:58:23,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-23 15:58:23,154 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:58:23,154 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:58:23,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-23 15:58:23,370 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:58:23,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:58:23,371 INFO L82 PathProgramCache]: Analyzing trace with hash 901612414, now seen corresponding path program 1 times [2020-12-23 15:58:23,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:58:23,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673722812] [2020-12-23 15:58:23,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:58:23,390 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:58:23,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1638530516] [2020-12-23 15:58:23,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:58:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:58:23,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 15:58:23,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:58:23,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:58:23,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673722812] [2020-12-23 15:58:23,721 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:58:23,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638530516] [2020-12-23 15:58:23,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:58:23,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:58:23,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073251982] [2020-12-23 15:58:23,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:58:23,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:58:23,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:58:23,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:58:23,729 INFO L87 Difference]: Start difference. First operand 336 states and 412 transitions. Second operand 4 states. [2020-12-23 15:58:23,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:58:23,879 INFO L93 Difference]: Finished difference Result 626 states and 773 transitions. [2020-12-23 15:58:23,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:58:23,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2020-12-23 15:58:23,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:58:23,882 INFO L225 Difference]: With dead ends: 626 [2020-12-23 15:58:23,883 INFO L226 Difference]: Without dead ends: 342 [2020-12-23 15:58:23,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:58:23,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-12-23 15:58:23,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 336. [2020-12-23 15:58:23,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-12-23 15:58:23,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 411 transitions. [2020-12-23 15:58:23,899 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 411 transitions. Word has length 78 [2020-12-23 15:58:23,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:58:23,900 INFO L481 AbstractCegarLoop]: Abstraction has 336 states and 411 transitions. [2020-12-23 15:58:23,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:58:23,900 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 411 transitions. [2020-12-23 15:58:23,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-23 15:58:23,901 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:58:23,901 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:58:24,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:58:24,107 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:58:24,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:58:24,108 INFO L82 PathProgramCache]: Analyzing trace with hash -611683268, now seen corresponding path program 1 times [2020-12-23 15:58:24,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:58:24,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512652631] [2020-12-23 15:58:24,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:58:24,135 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:58:24,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301334716] [2020-12-23 15:58:24,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:58:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:58:24,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:58:24,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:58:24,468 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 15:58:24,469 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 15:58:24,472 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 15:58:24,473 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 15:58:24,473 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-12-23 15:58:24,490 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 [2020-12-23 15:58:24,491 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 15:58:24,492 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 15:58:24,493 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 15:58:24,493 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-12-23 15:58:24,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 15:58:24,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512652631] [2020-12-23 15:58:24,547 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:58:24,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301334716] [2020-12-23 15:58:24,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:58:24,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:58:24,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318525771] [2020-12-23 15:58:24,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:58:24,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:58:24,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:58:24,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:58:24,550 INFO L87 Difference]: Start difference. First operand 336 states and 411 transitions. Second operand 4 states. [2020-12-23 15:58:24,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:58:24,944 INFO L93 Difference]: Finished difference Result 447 states and 551 transitions. [2020-12-23 15:58:24,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:58:24,945 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 79 [2020-12-23 15:58:24,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:58:24,948 INFO L225 Difference]: With dead ends: 447 [2020-12-23 15:58:24,948 INFO L226 Difference]: Without dead ends: 431 [2020-12-23 15:58:24,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:58:24,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-12-23 15:58:24,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 338. [2020-12-23 15:58:24,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-12-23 15:58:24,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 413 transitions. [2020-12-23 15:58:24,967 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 413 transitions. Word has length 79 [2020-12-23 15:58:24,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:58:24,969 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 413 transitions. [2020-12-23 15:58:24,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:58:24,969 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 413 transitions. [2020-12-23 15:58:24,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-23 15:58:24,970 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:58:24,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:58:25,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:58:25,186 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:58:25,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:58:25,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1201768388, now seen corresponding path program 1 times [2020-12-23 15:58:25,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:58:25,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236437507] [2020-12-23 15:58:25,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:58:25,218 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:58:25,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [700908] [2020-12-23 15:58:25,219 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 [2020-12-23 15:58:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:58:25,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-23 15:58:25,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:58:25,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:58:25,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236437507] [2020-12-23 15:58:25,535 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:58:25,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700908] [2020-12-23 15:58:25,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:58:25,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 15:58:25,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601520605] [2020-12-23 15:58:25,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 15:58:25,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:58:25,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 15:58:25,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:58:25,538 INFO L87 Difference]: Start difference. First operand 338 states and 413 transitions. Second operand 5 states. [2020-12-23 15:58:25,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:58:25,685 INFO L93 Difference]: Finished difference Result 626 states and 773 transitions. [2020-12-23 15:58:25,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 15:58:25,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2020-12-23 15:58:25,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:58:25,688 INFO L225 Difference]: With dead ends: 626 [2020-12-23 15:58:25,688 INFO L226 Difference]: Without dead ends: 340 [2020-12-23 15:58:25,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-23 15:58:25,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-12-23 15:58:25,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2020-12-23 15:58:25,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-12-23 15:58:25,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 415 transitions. [2020-12-23 15:58:25,711 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 415 transitions. Word has length 81 [2020-12-23 15:58:25,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:58:25,712 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 415 transitions. [2020-12-23 15:58:25,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 15:58:25,712 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 415 transitions. [2020-12-23 15:58:25,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-23 15:58:25,713 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:58:25,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:58:25,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-23 15:58:25,928 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:58:25,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:58:25,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1914773501, now seen corresponding path program 1 times [2020-12-23 15:58:25,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:58:25,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582231161] [2020-12-23 15:58:25,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:58:25,963 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:58:25,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1983940265] [2020-12-23 15:58:25,964 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 [2020-12-23 15:58:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:58:26,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-23 15:58:26,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:58:26,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 15:58:26,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582231161] [2020-12-23 15:58:26,287 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:58:26,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983940265] [2020-12-23 15:58:26,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:58:26,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-23 15:58:26,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114430718] [2020-12-23 15:58:26,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 15:58:26,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:58:26,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 15:58:26,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 15:58:26,290 INFO L87 Difference]: Start difference. First operand 340 states and 415 transitions. Second operand 6 states. [2020-12-23 15:58:26,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:58:26,436 INFO L93 Difference]: Finished difference Result 630 states and 777 transitions. [2020-12-23 15:58:26,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 15:58:26,436 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-12-23 15:58:26,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:58:26,438 INFO L225 Difference]: With dead ends: 630 [2020-12-23 15:58:26,438 INFO L226 Difference]: Without dead ends: 342 [2020-12-23 15:58:26,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-23 15:58:26,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-12-23 15:58:26,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2020-12-23 15:58:26,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-12-23 15:58:26,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 417 transitions. [2020-12-23 15:58:26,457 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 417 transitions. Word has length 83 [2020-12-23 15:58:26,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:58:26,458 INFO L481 AbstractCegarLoop]: Abstraction has 342 states and 417 transitions. [2020-12-23 15:58:26,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 15:58:26,458 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 417 transitions. [2020-12-23 15:58:26,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-23 15:58:26,459 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:58:26,459 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-23 15:58:26,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:58:26,673 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:58:26,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:58:26,674 INFO L82 PathProgramCache]: Analyzing trace with hash 931638948, now seen corresponding path program 2 times [2020-12-23 15:58:26,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:58:26,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104476753] [2020-12-23 15:58:26,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:58:26,693 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:58:26,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1381764917] [2020-12-23 15:58:26,694 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