/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_test1-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 15:53:26,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 15:53:26,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 15:53:26,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-23 15:53:26,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 15:53:26,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 15:53:26,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 15:53:26,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 15:53:26,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 15:53:26,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 15:53:26,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 15:53:26,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 15:53:26,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 15:53:26,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 15:53:26,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 15:53:26,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 15:53:26,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 15:53:26,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 15:53:26,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 15:53:26,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 15:53:26,575 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 15:53:26,610 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 15:53:26,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 15:53:26,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 15:53:26,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 15:53:26,616 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 15:53:26,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 15:53:26,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 15:53:26,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 15:53:26,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 15:53:26,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 15:53:26,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 15:53:26,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 15:53:26,619 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 15:53:26,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 15:53:26,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 15:53:26,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 15:53:26,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 15:53:26,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 15:53:26,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 15:53:26,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 15:53:26,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 15:53:26,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 15:53:26,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 15:53:26,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 15:53:26,628 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 15:53:26,628 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 15:53:27,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 15:53:27,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 15:53:27,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 15:53:27,099 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 15:53:27,100 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 15:53:27,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i [2020-12-23 15:53:27,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/79eeb4208/f2a9422e5c6a4775b46497f2cf534ec8/FLAGac8548005 [2020-12-23 15:53:28,176 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 15:53:28,177 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i [2020-12-23 15:53:28,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/79eeb4208/f2a9422e5c6a4775b46497f2cf534ec8/FLAGac8548005 [2020-12-23 15:53:28,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/79eeb4208/f2a9422e5c6a4775b46497f2cf534ec8 [2020-12-23 15:53:28,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 15:53:28,367 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 15:53:28,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 15:53:28,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 15:53:28,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 15:53:28,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:53:28" (1/1) ... [2020-12-23 15:53:28,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32d06b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:28, skipping insertion in model container [2020-12-23 15:53:28,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:53:28" (1/1) ... [2020-12-23 15:53:28,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 15:53:28,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 15:53:29,024 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_test1-2.i[33021,33034] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],StructAccessExpression[IdentifierExpression[~user~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[60],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[56],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem37,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem37,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem38,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem38,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem39,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem39,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem40,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem40,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem41,],base],StructAccessExpression[IdentifierExpression[#t~mem41,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem43,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem43,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem56,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem56,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem57,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem57,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_bkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem69,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem69,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_ha_head~0,],base],StructAccessExpression[IdentifierExpression[~_ha_head~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_new_buckets~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem81,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem81,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem91,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem91,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_hh_nxt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_newbkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem117,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem117,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],base],StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem125,],base],StructAccessExpression[IdentifierExpression[#t~mem125,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem126,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem126,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem136,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem136,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem152,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem152,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem157,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem157,],offset],IdentifierExpression[#t~mem159,]]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem163,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem163,],offset],IdentifierExpression[#t~mem165,]]]]] 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~mem177,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem177,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem180,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem180,],offset]]]] [2020-12-23 15:53:29,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 15:53:29,186 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 15:53:29,223 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_test1-2.i[33021,33034] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],StructAccessExpression[IdentifierExpression[~user~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[60],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[56],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem37,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem37,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem38,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem38,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem39,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem39,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem40,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem40,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem41,],base],StructAccessExpression[IdentifierExpression[#t~mem41,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem43,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem43,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem56,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem56,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem57,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem57,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_bkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem69,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem69,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_ha_head~0,],base],StructAccessExpression[IdentifierExpression[~_ha_head~0,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~#_he_new_buckets~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem83,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem83,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem93,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem93,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_hh_nxt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_newbkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem120,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem120,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],base],StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem128,],base],StructAccessExpression[IdentifierExpression[#t~mem128,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem130,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem130,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem140,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem140,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem156,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem156,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem161,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem161,],offset],IdentifierExpression[#t~mem163,]]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem167,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem167,],offset],IdentifierExpression[#t~mem169,]]]]] 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~mem181,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem181,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem184,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem184,],offset]]]] [2020-12-23 15:53:29,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 15:53:29,525 INFO L208 MainTranslator]: Completed translation [2020-12-23 15:53:29,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:29 WrapperNode [2020-12-23 15:53:29,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 15:53:29,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 15:53:29,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 15:53:29,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 15:53:29,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:29" (1/1) ... [2020-12-23 15:53:29,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:29" (1/1) ... [2020-12-23 15:53:29,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 15:53:29,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 15:53:29,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 15:53:29,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 15:53:29,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:29" (1/1) ... [2020-12-23 15:53:29,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:29" (1/1) ... [2020-12-23 15:53:29,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:29" (1/1) ... [2020-12-23 15:53:29,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:29" (1/1) ... [2020-12-23 15:53:29,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:29" (1/1) ... [2020-12-23 15:53:29,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:29" (1/1) ... [2020-12-23 15:53:29,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:29" (1/1) ... [2020-12-23 15:53:29,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 15:53:29,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 15:53:29,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 15:53:29,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 15:53:29,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 15:53:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 15:53:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 15:53:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 15:53:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 15:53:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 15:53:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 15:53:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 15:53:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 15:53:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 15:53:29,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 15:53:31,710 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 15:53:31,711 INFO L299 CfgBuilder]: Removed 72 assume(true) statements. [2020-12-23 15:53:31,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:53:31 BoogieIcfgContainer [2020-12-23 15:53:31,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 15:53:31,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 15:53:31,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 15:53:31,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 15:53:31,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:53:28" (1/3) ... [2020-12-23 15:53:31,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697d11a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:53:31, skipping insertion in model container [2020-12-23 15:53:31,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:29" (2/3) ... [2020-12-23 15:53:31,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697d11a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:53:31, skipping insertion in model container [2020-12-23 15:53:31,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:53:31" (3/3) ... [2020-12-23 15:53:31,724 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test1-2.i [2020-12-23 15:53:31,731 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 15:53:31,738 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-23 15:53:31,759 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-23 15:53:31,790 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 15:53:31,791 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 15:53:31,791 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 15:53:31,791 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 15:53:31,791 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 15:53:31,791 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 15:53:31,791 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 15:53:31,792 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 15:53:31,815 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2020-12-23 15:53:31,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 15:53:31,822 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:31,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:53:31,823 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:53:31,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:31,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1407226647, now seen corresponding path program 1 times [2020-12-23 15:53:31,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:31,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575765338] [2020-12-23 15:53:31,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:32,016 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 15:53:32,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575765338] [2020-12-23 15:53:32,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:32,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 15:53:32,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944314043] [2020-12-23 15:53:32,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 15:53:32,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:32,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 15:53:32,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 15:53:32,045 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 2 states. [2020-12-23 15:53:32,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:32,090 INFO L93 Difference]: Finished difference Result 332 states and 538 transitions. [2020-12-23 15:53:32,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 15:53:32,092 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-23 15:53:32,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:32,107 INFO L225 Difference]: With dead ends: 332 [2020-12-23 15:53:32,107 INFO L226 Difference]: Without dead ends: 134 [2020-12-23 15:53:32,112 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 15:53:32,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-12-23 15:53:32,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-12-23 15:53:32,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-12-23 15:53:32,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 172 transitions. [2020-12-23 15:53:32,165 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 172 transitions. Word has length 8 [2020-12-23 15:53:32,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:32,166 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 172 transitions. [2020-12-23 15:53:32,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 15:53:32,166 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 172 transitions. [2020-12-23 15:53:32,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 15:53:32,167 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:32,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:53:32,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 15:53:32,168 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:53:32,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:32,169 INFO L82 PathProgramCache]: Analyzing trace with hash 569968710, now seen corresponding path program 1 times [2020-12-23 15:53:32,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:32,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024655927] [2020-12-23 15:53:32,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:32,244 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 15:53:32,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024655927] [2020-12-23 15:53:32,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:32,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:53:32,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110672220] [2020-12-23 15:53:32,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:53:32,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:32,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:53:32,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:53:32,249 INFO L87 Difference]: Start difference. First operand 134 states and 172 transitions. Second operand 3 states. [2020-12-23 15:53:32,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:32,308 INFO L93 Difference]: Finished difference Result 266 states and 342 transitions. [2020-12-23 15:53:32,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:53:32,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-23 15:53:32,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:32,317 INFO L225 Difference]: With dead ends: 266 [2020-12-23 15:53:32,317 INFO L226 Difference]: Without dead ends: 221 [2020-12-23 15:53:32,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:53:32,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-12-23 15:53:32,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 135. [2020-12-23 15:53:32,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-12-23 15:53:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 173 transitions. [2020-12-23 15:53:32,350 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 173 transitions. Word has length 8 [2020-12-23 15:53:32,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:32,352 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 173 transitions. [2020-12-23 15:53:32,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:53:32,352 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 173 transitions. [2020-12-23 15:53:32,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-23 15:53:32,355 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:32,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:53:32,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 15:53:32,359 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:53:32,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:32,361 INFO L82 PathProgramCache]: Analyzing trace with hash -781067853, now seen corresponding path program 1 times [2020-12-23 15:53:32,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:32,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067652987] [2020-12-23 15:53:32,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:32,426 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:32,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857583057] [2020-12-23 15:53:32,426 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 15:53:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:32,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:53:32,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:32,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:53:32,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067652987] [2020-12-23 15:53:32,868 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:32,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857583057] [2020-12-23 15:53:32,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:32,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:53:32,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898147623] [2020-12-23 15:53:32,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:53:32,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:32,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:53:32,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:53:32,875 INFO L87 Difference]: Start difference. First operand 135 states and 173 transitions. Second operand 3 states. [2020-12-23 15:53:33,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:33,010 INFO L93 Difference]: Finished difference Result 288 states and 374 transitions. [2020-12-23 15:53:33,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:53:33,010 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2020-12-23 15:53:33,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:33,015 INFO L225 Difference]: With dead ends: 288 [2020-12-23 15:53:33,015 INFO L226 Difference]: Without dead ends: 156 [2020-12-23 15:53:33,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:53:33,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-12-23 15:53:33,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 155. [2020-12-23 15:53:33,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-12-23 15:53:33,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 193 transitions. [2020-12-23 15:53:33,046 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 193 transitions. Word has length 59 [2020-12-23 15:53:33,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:33,047 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 193 transitions. [2020-12-23 15:53:33,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:53:33,047 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 193 transitions. [2020-12-23 15:53:33,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-23 15:53:33,049 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:33,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:53:33,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-23 15:53:33,260 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:53:33,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:33,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1269877969, now seen corresponding path program 1 times [2020-12-23 15:53:33,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:33,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052021197] [2020-12-23 15:53:33,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:33,294 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:33,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [859156879] [2020-12-23 15:53:33,298 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 15:53:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:33,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:53:33,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:53:33,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052021197] [2020-12-23 15:53:33,572 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:33,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859156879] [2020-12-23 15:53:33,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:33,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:53:33,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989323108] [2020-12-23 15:53:33,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:53:33,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:33,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:53:33,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:33,574 INFO L87 Difference]: Start difference. First operand 155 states and 193 transitions. Second operand 4 states. [2020-12-23 15:53:33,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:33,662 INFO L93 Difference]: Finished difference Result 299 states and 375 transitions. [2020-12-23 15:53:33,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:53:33,663 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-12-23 15:53:33,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:33,664 INFO L225 Difference]: With dead ends: 299 [2020-12-23 15:53:33,665 INFO L226 Difference]: Without dead ends: 147 [2020-12-23 15:53:33,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:53:33,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-12-23 15:53:33,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2020-12-23 15:53:33,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-12-23 15:53:33,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 172 transitions. [2020-12-23 15:53:33,674 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 172 transitions. Word has length 59 [2020-12-23 15:53:33,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:33,675 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 172 transitions. [2020-12-23 15:53:33,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:53:33,675 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 172 transitions. [2020-12-23 15:53:33,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-23 15:53:33,677 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:33,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:53:33,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:33,893 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:53:33,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:33,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1890386365, now seen corresponding path program 1 times [2020-12-23 15:53:33,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:33,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160844992] [2020-12-23 15:53:33,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:33,936 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:33,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1429117210] [2020-12-23 15:53:33,937 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 15:53:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:34,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:53:34,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:34,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 15:53:34,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160844992] [2020-12-23 15:53:34,266 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:34,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429117210] [2020-12-23 15:53:34,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:53:34,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-12-23 15:53:34,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134653268] [2020-12-23 15:53:34,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:53:34,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:34,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:53:34,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:34,271 INFO L87 Difference]: Start difference. First operand 141 states and 172 transitions. Second operand 4 states. [2020-12-23 15:53:34,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:34,315 INFO L93 Difference]: Finished difference Result 371 states and 453 transitions. [2020-12-23 15:53:34,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:53:34,316 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-12-23 15:53:34,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:34,318 INFO L225 Difference]: With dead ends: 371 [2020-12-23 15:53:34,318 INFO L226 Difference]: Without dead ends: 326 [2020-12-23 15:53:34,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:34,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-12-23 15:53:34,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 234. [2020-12-23 15:53:34,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-12-23 15:53:34,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 285 transitions. [2020-12-23 15:53:34,344 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 285 transitions. Word has length 59 [2020-12-23 15:53:34,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:34,346 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 285 transitions. [2020-12-23 15:53:34,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:53:34,346 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 285 transitions. [2020-12-23 15:53:34,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-23 15:53:34,358 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:34,359 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:53:34,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:34,574 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:53:34,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:34,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1357916902, now seen corresponding path program 2 times [2020-12-23 15:53:34,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:34,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054775866] [2020-12-23 15:53:34,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:34,600 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:34,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250498739] [2020-12-23 15:53:34,601 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:34,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 15:53:34,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:53:34,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 15:53:34,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:35,039 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-12-23 15:53:35,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054775866] [2020-12-23 15:53:35,040 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:35,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250498739] [2020-12-23 15:53:35,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:35,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:53:35,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834089957] [2020-12-23 15:53:35,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:53:35,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:35,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:53:35,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:35,042 INFO L87 Difference]: Start difference. First operand 234 states and 285 transitions. Second operand 4 states. [2020-12-23 15:53:35,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:35,320 INFO L93 Difference]: Finished difference Result 410 states and 504 transitions. [2020-12-23 15:53:35,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:53:35,321 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2020-12-23 15:53:35,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:35,323 INFO L225 Difference]: With dead ends: 410 [2020-12-23 15:53:35,323 INFO L226 Difference]: Without dead ends: 232 [2020-12-23 15:53:35,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:35,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-12-23 15:53:35,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2020-12-23 15:53:35,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-12-23 15:53:35,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 282 transitions. [2020-12-23 15:53:35,333 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 282 transitions. Word has length 110 [2020-12-23 15:53:35,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:35,333 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 282 transitions. [2020-12-23 15:53:35,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:53:35,334 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 282 transitions. [2020-12-23 15:53:35,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-23 15:53:35,335 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:35,335 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:53:35,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:35,549 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:53:35,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:35,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1177328342, now seen corresponding path program 1 times [2020-12-23 15:53:35,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:35,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897767934] [2020-12-23 15:53:35,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:35,570 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:35,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [930621210] [2020-12-23 15:53:35,570 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 15:53:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:35,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:53:35,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:36,055 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-12-23 15:53:36,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897767934] [2020-12-23 15:53:36,056 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:36,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930621210] [2020-12-23 15:53:36,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:36,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:53:36,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264793739] [2020-12-23 15:53:36,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:53:36,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:36,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:53:36,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:53:36,064 INFO L87 Difference]: Start difference. First operand 232 states and 282 transitions. Second operand 3 states. [2020-12-23 15:53:36,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:36,101 INFO L93 Difference]: Finished difference Result 418 states and 516 transitions. [2020-12-23 15:53:36,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:53:36,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-12-23 15:53:36,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:36,107 INFO L225 Difference]: With dead ends: 418 [2020-12-23 15:53:36,107 INFO L226 Difference]: Without dead ends: 236 [2020-12-23 15:53:36,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:53:36,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-12-23 15:53:36,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2020-12-23 15:53:36,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-12-23 15:53:36,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 286 transitions. [2020-12-23 15:53:36,126 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 286 transitions. Word has length 117 [2020-12-23 15:53:36,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:36,130 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 286 transitions. [2020-12-23 15:53:36,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:53:36,130 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 286 transitions. [2020-12-23 15:53:36,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-12-23 15:53:36,132 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:36,134 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:53:36,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-23 15:53:36,336 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:53:36,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:36,337 INFO L82 PathProgramCache]: Analyzing trace with hash 375393205, now seen corresponding path program 1 times [2020-12-23 15:53:36,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:36,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409662819] [2020-12-23 15:53:36,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:36,357 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:36,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [56155091] [2020-12-23 15:53:36,357 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 15:53:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:36,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 15:53:36,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:36,919 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-23 15:53:36,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409662819] [2020-12-23 15:53:36,920 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:36,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56155091] [2020-12-23 15:53:36,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:53:36,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-12-23 15:53:36,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338338720] [2020-12-23 15:53:36,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:53:36,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:36,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:53:36,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:36,923 INFO L87 Difference]: Start difference. First operand 236 states and 286 transitions. Second operand 4 states. [2020-12-23 15:53:36,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:36,963 INFO L93 Difference]: Finished difference Result 425 states and 523 transitions. [2020-12-23 15:53:36,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:53:36,964 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2020-12-23 15:53:36,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:36,966 INFO L225 Difference]: With dead ends: 425 [2020-12-23 15:53:36,966 INFO L226 Difference]: Without dead ends: 240 [2020-12-23 15:53:36,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:36,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-12-23 15:53:36,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2020-12-23 15:53:36,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-12-23 15:53:36,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 290 transitions. [2020-12-23 15:53:36,975 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 290 transitions. Word has length 119 [2020-12-23 15:53:36,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:36,975 INFO L481 AbstractCegarLoop]: Abstraction has 240 states and 290 transitions. [2020-12-23 15:53:36,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:53:36,976 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 290 transitions. [2020-12-23 15:53:36,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-12-23 15:53:36,977 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:36,977 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:53:37,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:37,192 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:53:37,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:37,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1447349194, now seen corresponding path program 2 times [2020-12-23 15:53:37,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:37,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040590630] [2020-12-23 15:53:37,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:37,226 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:37,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586896904] [2020-12-23 15:53:37,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:37,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 15:53:37,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:53:37,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 15:53:37,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:37,673 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-12-23 15:53:37,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040590630] [2020-12-23 15:53:37,674 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:37,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586896904] [2020-12-23 15:53:37,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:53:37,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-12-23 15:53:37,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750320491] [2020-12-23 15:53:37,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 15:53:37,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:37,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 15:53:37,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:53:37,676 INFO L87 Difference]: Start difference. First operand 240 states and 290 transitions. Second operand 5 states. [2020-12-23 15:53:37,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:37,721 INFO L93 Difference]: Finished difference Result 432 states and 530 transitions. [2020-12-23 15:53:37,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 15:53:37,722 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-12-23 15:53:37,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:37,724 INFO L225 Difference]: With dead ends: 432 [2020-12-23 15:53:37,724 INFO L226 Difference]: Without dead ends: 244 [2020-12-23 15:53:37,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:53:37,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-12-23 15:53:37,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2020-12-23 15:53:37,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-12-23 15:53:37,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 294 transitions. [2020-12-23 15:53:37,735 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 294 transitions. Word has length 121 [2020-12-23 15:53:37,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:37,735 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 294 transitions. [2020-12-23 15:53:37,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 15:53:37,736 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 294 transitions. [2020-12-23 15:53:37,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-12-23 15:53:37,737 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:37,737 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:53:37,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:37,952 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:53:37,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:37,954 INFO L82 PathProgramCache]: Analyzing trace with hash 414988629, now seen corresponding path program 3 times [2020-12-23 15:53:37,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:37,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045914528] [2020-12-23 15:53:37,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:37,987 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:37,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104931059] [2020-12-23 15:53:37,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true