/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_test1-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 15:53:25,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 15:53:25,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 15:53:25,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 15:53:25,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 15:53:25,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 15:53:25,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 15:53:25,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 15:53:25,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 15:53:25,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 15:53:25,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 15:53:25,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 15:53:25,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 15:53:25,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 15:53:25,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 15:53:25,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 15:53:25,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 15:53:25,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 15:53:25,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 15:53:25,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 15:53:25,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 15:53:25,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 15:53:25,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 15:53:25,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 15:53:25,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 15:53:25,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 15:53:25,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 15:53:25,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 15:53:25,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 15:53:25,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 15:53:25,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 15:53:25,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 15:53:25,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 15:53:25,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 15:53:25,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 15:53:25,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 15:53:25,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 15:53:25,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 15:53:25,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 15:53:25,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 15:53:25,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 15:53:25,312 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 15:53:25,353 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 15:53:25,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 15:53:25,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 15:53:25,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 15:53:25,358 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 15:53:25,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 15:53:25,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 15:53:25,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 15:53:25,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 15:53:25,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 15:53:25,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 15:53:25,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 15:53:25,361 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 15:53:25,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 15:53:25,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 15:53:25,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 15:53:25,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 15:53:25,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 15:53:25,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 15:53:25,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 15:53:25,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 15:53:25,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 15:53:25,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 15:53:25,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 15:53:25,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 15:53:25,364 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 15:53:25,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 15:53:25,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 15:53:25,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 15:53:25,876 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 15:53:25,877 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 15:53:25,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2020-12-23 15:53:25,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/533bd0299/8e3f66c059e54077a7e96d1c0a725009/FLAG22edba7f7 [2020-12-23 15:53:26,728 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 15:53:26,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2020-12-23 15:53:26,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/533bd0299/8e3f66c059e54077a7e96d1c0a725009/FLAG22edba7f7 [2020-12-23 15:53:26,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/533bd0299/8e3f66c059e54077a7e96d1c0a725009 [2020-12-23 15:53:26,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 15:53:26,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 15:53:26,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 15:53:26,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 15:53:26,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 15:53:26,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:53:26" (1/1) ... [2020-12-23 15:53:26,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa1d278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:26, skipping insertion in model container [2020-12-23 15:53:26,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:53:26" (1/1) ... [2020-12-23 15:53:26,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 15:53:27,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 15:53:27,630 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i[33021,33034] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],StructAccessExpression[IdentifierExpression[~user~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[60],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[56],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~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,] [2020-12-23 15:53:27,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 15:53:27,818 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 15:53:27,877 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_test1-1.i[33021,33034] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],StructAccessExpression[IdentifierExpression[~user~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[60],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[56],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~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,] [2020-12-23 15:53:27,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 15:53:28,106 INFO L208 MainTranslator]: Completed translation [2020-12-23 15:53:28,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:28 WrapperNode [2020-12-23 15:53:28,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 15:53:28,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 15:53:28,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 15:53:28,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 15:53:28,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:28" (1/1) ... [2020-12-23 15:53:28,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:28" (1/1) ... [2020-12-23 15:53:28,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 15:53:28,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 15:53:28,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 15:53:28,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 15:53:28,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:28" (1/1) ... [2020-12-23 15:53:28,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:28" (1/1) ... [2020-12-23 15:53:28,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:28" (1/1) ... [2020-12-23 15:53:28,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:28" (1/1) ... [2020-12-23 15:53:28,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:28" (1/1) ... [2020-12-23 15:53:28,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:28" (1/1) ... [2020-12-23 15:53:28,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:28" (1/1) ... [2020-12-23 15:53:28,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 15:53:28,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 15:53:28,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 15:53:28,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 15:53:28,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:28" (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 15:53:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 15:53:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 15:53:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 15:53:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 15:53:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 15:53:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 15:53:28,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 15:53:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 15:53:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 15:53:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 15:53:29,999 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 15:53:29,999 INFO L299 CfgBuilder]: Removed 63 assume(true) statements. [2020-12-23 15:53:30,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:53:30 BoogieIcfgContainer [2020-12-23 15:53:30,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 15:53:30,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 15:53:30,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 15:53:30,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 15:53:30,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:53:26" (1/3) ... [2020-12-23 15:53:30,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712074cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:53:30, skipping insertion in model container [2020-12-23 15:53:30,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:53:28" (2/3) ... [2020-12-23 15:53:30,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712074cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:53:30, skipping insertion in model container [2020-12-23 15:53:30,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:53:30" (3/3) ... [2020-12-23 15:53:30,011 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test1-1.i [2020-12-23 15:53:30,018 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 15:53:30,025 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-23 15:53:30,046 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-23 15:53:30,074 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 15:53:30,075 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 15:53:30,075 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 15:53:30,075 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 15:53:30,075 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 15:53:30,076 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 15:53:30,076 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 15:53:30,076 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 15:53:30,097 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2020-12-23 15:53:30,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 15:53:30,103 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:30,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:53:30,104 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 15:53:30,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:30,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1407226647, now seen corresponding path program 1 times [2020-12-23 15:53:30,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:30,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095241260] [2020-12-23 15:53:30,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:30,287 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 15:53:30,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095241260] [2020-12-23 15:53:30,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:30,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 15:53:30,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49753338] [2020-12-23 15:53:30,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 15:53:30,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:30,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 15:53:30,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 15:53:30,315 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 2 states. [2020-12-23 15:53:30,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:30,353 INFO L93 Difference]: Finished difference Result 274 states and 440 transitions. [2020-12-23 15:53:30,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 15:53:30,354 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-23 15:53:30,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:30,369 INFO L225 Difference]: With dead ends: 274 [2020-12-23 15:53:30,369 INFO L226 Difference]: Without dead ends: 134 [2020-12-23 15:53:30,374 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 15:53:30,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-12-23 15:53:30,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-12-23 15:53:30,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-12-23 15:53:30,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 172 transitions. [2020-12-23 15:53:30,426 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 172 transitions. Word has length 8 [2020-12-23 15:53:30,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:30,426 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 172 transitions. [2020-12-23 15:53:30,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 15:53:30,426 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 172 transitions. [2020-12-23 15:53:30,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 15:53:30,427 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:30,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:53:30,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 15:53:30,428 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 15:53:30,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:30,429 INFO L82 PathProgramCache]: Analyzing trace with hash 569968710, now seen corresponding path program 1 times [2020-12-23 15:53:30,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:30,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418242149] [2020-12-23 15:53:30,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:30,489 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 15:53:30,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418242149] [2020-12-23 15:53:30,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:30,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:53:30,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258305532] [2020-12-23 15:53:30,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:53:30,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:30,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:53:30,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:53:30,493 INFO L87 Difference]: Start difference. First operand 134 states and 172 transitions. Second operand 3 states. [2020-12-23 15:53:30,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:30,557 INFO L93 Difference]: Finished difference Result 266 states and 342 transitions. [2020-12-23 15:53:30,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:53:30,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-23 15:53:30,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:30,563 INFO L225 Difference]: With dead ends: 266 [2020-12-23 15:53:30,563 INFO L226 Difference]: Without dead ends: 221 [2020-12-23 15:53:30,565 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 15:53:30,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-12-23 15:53:30,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 135. [2020-12-23 15:53:30,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-12-23 15:53:30,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 173 transitions. [2020-12-23 15:53:30,596 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 173 transitions. Word has length 8 [2020-12-23 15:53:30,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:30,600 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 173 transitions. [2020-12-23 15:53:30,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:53:30,600 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 173 transitions. [2020-12-23 15:53:30,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-23 15:53:30,603 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:30,604 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 15:53:30,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 15:53:30,604 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 15:53:30,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:30,605 INFO L82 PathProgramCache]: Analyzing trace with hash -781067853, now seen corresponding path program 1 times [2020-12-23 15:53:30,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:30,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025059336] [2020-12-23 15:53:30,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:30,648 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:30,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [404505470] [2020-12-23 15:53:30,649 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 15:53:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:30,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:53:30,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:30,991 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 15:53:30,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025059336] [2020-12-23 15:53:30,992 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:30,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404505470] [2020-12-23 15:53:30,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:30,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:53:30,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085172233] [2020-12-23 15:53:30,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:53:30,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:30,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:53:30,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:53:30,995 INFO L87 Difference]: Start difference. First operand 135 states and 173 transitions. Second operand 3 states. [2020-12-23 15:53:31,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:31,082 INFO L93 Difference]: Finished difference Result 288 states and 374 transitions. [2020-12-23 15:53:31,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:53:31,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2020-12-23 15:53:31,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:31,084 INFO L225 Difference]: With dead ends: 288 [2020-12-23 15:53:31,084 INFO L226 Difference]: Without dead ends: 156 [2020-12-23 15:53:31,086 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 15:53:31,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-12-23 15:53:31,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 155. [2020-12-23 15:53:31,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-12-23 15:53:31,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 193 transitions. [2020-12-23 15:53:31,106 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 193 transitions. Word has length 59 [2020-12-23 15:53:31,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:31,107 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 193 transitions. [2020-12-23 15:53:31,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:53:31,107 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 193 transitions. [2020-12-23 15:53:31,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-23 15:53:31,111 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:31,111 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 15:53:31,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-23 15:53:31,325 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 15:53:31,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:31,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1269877969, now seen corresponding path program 1 times [2020-12-23 15:53:31,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:31,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885176910] [2020-12-23 15:53:31,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:31,365 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:31,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1388906537] [2020-12-23 15:53:31,366 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 15:53:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:31,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:53:31,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:31,617 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 15:53:31,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885176910] [2020-12-23 15:53:31,618 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:31,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388906537] [2020-12-23 15:53:31,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:31,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:53:31,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79826865] [2020-12-23 15:53:31,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:53:31,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:31,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:53:31,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:31,621 INFO L87 Difference]: Start difference. First operand 155 states and 193 transitions. Second operand 4 states. [2020-12-23 15:53:31,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:31,722 INFO L93 Difference]: Finished difference Result 299 states and 375 transitions. [2020-12-23 15:53:31,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:53:31,722 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-12-23 15:53:31,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:31,725 INFO L225 Difference]: With dead ends: 299 [2020-12-23 15:53:31,725 INFO L226 Difference]: Without dead ends: 147 [2020-12-23 15:53:31,730 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 15:53:31,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-12-23 15:53:31,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2020-12-23 15:53:31,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-12-23 15:53:31,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 172 transitions. [2020-12-23 15:53:31,759 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 172 transitions. Word has length 59 [2020-12-23 15:53:31,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:31,760 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 172 transitions. [2020-12-23 15:53:31,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:53:31,760 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 172 transitions. [2020-12-23 15:53:31,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-23 15:53:31,762 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:31,762 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 15:53:31,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:31,964 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 15:53:31,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:31,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1890386365, now seen corresponding path program 1 times [2020-12-23 15:53:31,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:31,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030883217] [2020-12-23 15:53:31,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:32,004 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:32,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [64976342] [2020-12-23 15:53:32,005 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 15:53:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:32,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:53:32,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:32,333 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 15:53:32,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030883217] [2020-12-23 15:53:32,334 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:32,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64976342] [2020-12-23 15:53:32,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:53:32,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-12-23 15:53:32,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590425606] [2020-12-23 15:53:32,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:53:32,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:32,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:53:32,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:32,338 INFO L87 Difference]: Start difference. First operand 141 states and 172 transitions. Second operand 4 states. [2020-12-23 15:53:32,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:32,388 INFO L93 Difference]: Finished difference Result 371 states and 453 transitions. [2020-12-23 15:53:32,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:53:32,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-12-23 15:53:32,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:32,392 INFO L225 Difference]: With dead ends: 371 [2020-12-23 15:53:32,393 INFO L226 Difference]: Without dead ends: 326 [2020-12-23 15:53:32,396 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 15:53:32,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-12-23 15:53:32,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 234. [2020-12-23 15:53:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-12-23 15:53:32,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 285 transitions. [2020-12-23 15:53:32,416 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 285 transitions. Word has length 59 [2020-12-23 15:53:32,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:32,418 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 285 transitions. [2020-12-23 15:53:32,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:53:32,418 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 285 transitions. [2020-12-23 15:53:32,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-23 15:53:32,429 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:32,430 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 15:53:32,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:32,645 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 15:53:32,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:32,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1357916902, now seen corresponding path program 2 times [2020-12-23 15:53:32,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:32,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052395254] [2020-12-23 15:53:32,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:32,668 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:32,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2011507061] [2020-12-23 15:53:32,669 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 15:53:32,810 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 15:53:32,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:53:32,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 15:53:32,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:33,122 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 15:53:33,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052395254] [2020-12-23 15:53:33,123 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:33,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011507061] [2020-12-23 15:53:33,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:33,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:53:33,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409060021] [2020-12-23 15:53:33,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:53:33,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:33,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:53:33,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:33,126 INFO L87 Difference]: Start difference. First operand 234 states and 285 transitions. Second operand 4 states. [2020-12-23 15:53:33,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:33,407 INFO L93 Difference]: Finished difference Result 410 states and 504 transitions. [2020-12-23 15:53:33,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:53:33,408 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2020-12-23 15:53:33,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:33,410 INFO L225 Difference]: With dead ends: 410 [2020-12-23 15:53:33,410 INFO L226 Difference]: Without dead ends: 232 [2020-12-23 15:53:33,411 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 15:53:33,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-12-23 15:53:33,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2020-12-23 15:53:33,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-12-23 15:53:33,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 282 transitions. [2020-12-23 15:53:33,421 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 282 transitions. Word has length 110 [2020-12-23 15:53:33,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:33,422 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 282 transitions. [2020-12-23 15:53:33,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:53:33,422 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 282 transitions. [2020-12-23 15:53:33,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-23 15:53:33,423 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:33,423 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 15:53:33,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:33,638 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 15:53:33,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:33,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1177328342, now seen corresponding path program 1 times [2020-12-23 15:53:33,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:33,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832682321] [2020-12-23 15:53:33,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:33,659 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:33,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1371968743] [2020-12-23 15:53:33,660 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 15:53:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:33,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:53:33,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:34,004 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 15:53:34,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832682321] [2020-12-23 15:53:34,004 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:34,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371968743] [2020-12-23 15:53:34,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:53:34,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:53:34,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677898240] [2020-12-23 15:53:34,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:53:34,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:34,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:53:34,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:53:34,007 INFO L87 Difference]: Start difference. First operand 232 states and 282 transitions. Second operand 3 states. [2020-12-23 15:53:34,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:34,035 INFO L93 Difference]: Finished difference Result 418 states and 516 transitions. [2020-12-23 15:53:34,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:53:34,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-12-23 15:53:34,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:34,038 INFO L225 Difference]: With dead ends: 418 [2020-12-23 15:53:34,038 INFO L226 Difference]: Without dead ends: 236 [2020-12-23 15:53:34,040 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 15:53:34,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-12-23 15:53:34,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2020-12-23 15:53:34,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-12-23 15:53:34,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 286 transitions. [2020-12-23 15:53:34,049 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 286 transitions. Word has length 117 [2020-12-23 15:53:34,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:34,049 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 286 transitions. [2020-12-23 15:53:34,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:53:34,050 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 286 transitions. [2020-12-23 15:53:34,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-12-23 15:53:34,051 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:34,051 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 15:53:34,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-23 15:53:34,265 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 15:53:34,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:34,266 INFO L82 PathProgramCache]: Analyzing trace with hash 375393205, now seen corresponding path program 1 times [2020-12-23 15:53:34,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:34,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747987364] [2020-12-23 15:53:34,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:34,284 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:34,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832578672] [2020-12-23 15:53:34,285 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 15:53:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:53:34,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 15:53:34,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:34,715 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 15:53:34,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747987364] [2020-12-23 15:53:34,716 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:34,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832578672] [2020-12-23 15:53:34,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:53:34,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-12-23 15:53:34,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339208847] [2020-12-23 15:53:34,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:53:34,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:34,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:53:34,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:53:34,719 INFO L87 Difference]: Start difference. First operand 236 states and 286 transitions. Second operand 4 states. [2020-12-23 15:53:34,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:34,760 INFO L93 Difference]: Finished difference Result 425 states and 523 transitions. [2020-12-23 15:53:34,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:53:34,761 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2020-12-23 15:53:34,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:34,763 INFO L225 Difference]: With dead ends: 425 [2020-12-23 15:53:34,763 INFO L226 Difference]: Without dead ends: 240 [2020-12-23 15:53:34,764 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 15:53:34,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-12-23 15:53:34,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2020-12-23 15:53:34,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-12-23 15:53:34,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 290 transitions. [2020-12-23 15:53:34,775 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 290 transitions. Word has length 119 [2020-12-23 15:53:34,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:34,775 INFO L481 AbstractCegarLoop]: Abstraction has 240 states and 290 transitions. [2020-12-23 15:53:34,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:53:34,776 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 290 transitions. [2020-12-23 15:53:34,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-12-23 15:53:34,777 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:34,778 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 15:53:34,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:34,992 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 15:53:34,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:34,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1447349194, now seen corresponding path program 2 times [2020-12-23 15:53:34,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:34,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688898508] [2020-12-23 15:53:34,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:35,022 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:35,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1968342497] [2020-12-23 15:53:35,023 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 15:53:35,283 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 15:53:35,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:53:35,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 15:53:35,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:53:35,421 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 15:53:35,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688898508] [2020-12-23 15:53:35,422 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:53:35,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968342497] [2020-12-23 15:53:35,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:53:35,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-12-23 15:53:35,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303748398] [2020-12-23 15:53:35,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 15:53:35,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:53:35,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 15:53:35,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:53:35,425 INFO L87 Difference]: Start difference. First operand 240 states and 290 transitions. Second operand 5 states. [2020-12-23 15:53:35,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:53:35,470 INFO L93 Difference]: Finished difference Result 432 states and 530 transitions. [2020-12-23 15:53:35,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 15:53:35,470 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-12-23 15:53:35,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:53:35,472 INFO L225 Difference]: With dead ends: 432 [2020-12-23 15:53:35,473 INFO L226 Difference]: Without dead ends: 244 [2020-12-23 15:53:35,473 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 15:53:35,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-12-23 15:53:35,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2020-12-23 15:53:35,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-12-23 15:53:35,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 294 transitions. [2020-12-23 15:53:35,483 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 294 transitions. Word has length 121 [2020-12-23 15:53:35,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:53:35,483 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 294 transitions. [2020-12-23 15:53:35,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 15:53:35,483 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 294 transitions. [2020-12-23 15:53:35,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-12-23 15:53:35,485 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:53:35,485 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 15:53:35,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:53:35,699 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 15:53:35,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:53:35,700 INFO L82 PathProgramCache]: Analyzing trace with hash 414988629, now seen corresponding path program 3 times [2020-12-23 15:53:35,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:53:35,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339589251] [2020-12-23 15:53:35,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:53:35,720 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:53:35,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1756891441] [2020-12-23 15:53:35,721 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 [2020-12-23 15:54:44,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-23 15:54:44,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:54:44,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 15:54:44,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:45,033 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-23 15:54:45,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339589251] [2020-12-23 15:54:45,034 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:45,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756891441] [2020-12-23 15:54:45,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:54:45,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-12-23 15:54:45,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314848356] [2020-12-23 15:54:45,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 15:54:45,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:45,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 15:54:45,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:54:45,036 INFO L87 Difference]: Start difference. First operand 244 states and 294 transitions. Second operand 5 states. [2020-12-23 15:54:45,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:45,094 INFO L93 Difference]: Finished difference Result 486 states and 587 transitions. [2020-12-23 15:54:45,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 15:54:45,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2020-12-23 15:54:45,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:45,098 INFO L225 Difference]: With dead ends: 486 [2020-12-23 15:54:45,098 INFO L226 Difference]: Without dead ends: 441 [2020-12-23 15:54:45,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 119 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 15:54:45,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-12-23 15:54:45,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 343. [2020-12-23 15:54:45,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-12-23 15:54:45,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 413 transitions. [2020-12-23 15:54:45,114 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 413 transitions. Word has length 123 [2020-12-23 15:54:45,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:45,114 INFO L481 AbstractCegarLoop]: Abstraction has 343 states and 413 transitions. [2020-12-23 15:54:45,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 15:54:45,115 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 413 transitions. [2020-12-23 15:54:45,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-12-23 15:54:45,117 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:45,117 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:54:45,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-23 15:54:45,318 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:54:45,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:45,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1984379982, now seen corresponding path program 4 times [2020-12-23 15:54:45,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:45,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151173815] [2020-12-23 15:54:45,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:45,338 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:45,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [551895448] [2020-12-23 15:54:45,338 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:54:45,521 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 15:54:45,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:54:45,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 15:54:45,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:45,762 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-23 15:54:45,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151173815] [2020-12-23 15:54:45,763 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:45,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551895448] [2020-12-23 15:54:45,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:54:45,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-23 15:54:45,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186172932] [2020-12-23 15:54:45,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 15:54:45,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:45,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 15:54:45,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 15:54:45,764 INFO L87 Difference]: Start difference. First operand 343 states and 413 transitions. Second operand 6 states. [2020-12-23 15:54:45,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:45,822 INFO L93 Difference]: Finished difference Result 585 states and 706 transitions. [2020-12-23 15:54:45,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 15:54:45,823 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-12-23 15:54:45,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:45,826 INFO L225 Difference]: With dead ends: 585 [2020-12-23 15:54:45,827 INFO L226 Difference]: Without dead ends: 540 [2020-12-23 15:54:45,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 15:54:45,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-12-23 15:54:45,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 442. [2020-12-23 15:54:45,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-12-23 15:54:45,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 532 transitions. [2020-12-23 15:54:45,848 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 532 transitions. Word has length 174 [2020-12-23 15:54:45,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:45,849 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 532 transitions. [2020-12-23 15:54:45,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 15:54:45,849 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 532 transitions. [2020-12-23 15:54:45,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-12-23 15:54:45,852 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:45,852 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:54:46,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:54:46,065 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 15:54:46,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:46,067 INFO L82 PathProgramCache]: Analyzing trace with hash 331292853, now seen corresponding path program 5 times [2020-12-23 15:54:46,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:46,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356402969] [2020-12-23 15:54:46,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:46,088 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:46,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [147490741] [2020-12-23 15:54:46,088 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:54:46,342 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2020-12-23 15:54:46,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:54:46,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 15:54:46,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:46,601 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 109 proven. 6 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2020-12-23 15:54:46,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356402969] [2020-12-23 15:54:46,601 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:46,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147490741] [2020-12-23 15:54:46,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:54:46,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-23 15:54:46,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318718848] [2020-12-23 15:54:46,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 15:54:46,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:46,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 15:54:46,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 15:54:46,608 INFO L87 Difference]: Start difference. First operand 442 states and 532 transitions. Second operand 6 states. [2020-12-23 15:54:46,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:46,666 INFO L93 Difference]: Finished difference Result 839 states and 1021 transitions. [2020-12-23 15:54:46,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 15:54:46,667 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2020-12-23 15:54:46,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:46,670 INFO L225 Difference]: With dead ends: 839 [2020-12-23 15:54:46,670 INFO L226 Difference]: Without dead ends: 450 [2020-12-23 15:54:46,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 15:54:46,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-12-23 15:54:46,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2020-12-23 15:54:46,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-12-23 15:54:46,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 540 transitions. [2020-12-23 15:54:46,690 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 540 transitions. Word has length 225 [2020-12-23 15:54:46,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:46,690 INFO L481 AbstractCegarLoop]: Abstraction has 450 states and 540 transitions. [2020-12-23 15:54:46,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 15:54:46,690 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 540 transitions. [2020-12-23 15:54:46,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-12-23 15:54:46,693 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:46,694 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:54:46,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:54:46,908 INFO L429 AbstractCegarLoop]: === Iteration 13 === [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 15:54:46,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:46,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1136770102, now seen corresponding path program 6 times [2020-12-23 15:54:46,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:46,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348308979] [2020-12-23 15:54:46,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:46,928 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:46,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [747626819] [2020-12-23 15:54:46,929 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true