/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-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/list-properties/list-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 05:29:53,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 05:29:53,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 05:29:53,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 05:29:53,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 05:29:53,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 05:29:53,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 05:29:53,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 05:29:53,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 05:29:53,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 05:29:53,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 05:29:53,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 05:29:53,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 05:29:53,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 05:29:53,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 05:29:53,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 05:29:53,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 05:29:53,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 05:29:53,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 05:29:53,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 05:29:53,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 05:29:53,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 05:29:53,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 05:29:53,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 05:29:53,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-07 05:29:53,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-07 05:29:53,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-07 05:29:53,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-07 05:29:53,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-07 05:29:53,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-07 05:29:53,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 05:29:53,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 05:29:53,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 05:29:53,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 05:29:53,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 05:29:53,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 05:29:53,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 05:29:53,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 05:29:53,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 05:29:53,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 05:29:53,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 05:29:53,300 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-01-07 05:29:53,328 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 05:29:53,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 05:29:53,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 05:29:53,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 05:29:53,330 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 05:29:53,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 05:29:53,331 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 05:29:53,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 05:29:53,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 05:29:53,331 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 05:29:53,332 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 05:29:53,332 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-01-07 05:29:53,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 05:29:53,332 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 05:29:53,332 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 05:29:53,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 05:29:53,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 05:29:53,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 05:29:53,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:29:53,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 05:29:53,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 05:29:53,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 05:29:53,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 05:29:53,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 05:29:53,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 05:29:53,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 05:29:53,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 05:29:53,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 05:29:53,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 05:29:53,794 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 05:29:53,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/list-1.i [2021-01-07 05:29:53,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/32e505957/1f7ff4c04e56449cb0dac51b82e13113/FLAG794222b7b [2021-01-07 05:29:54,503 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 05:29:54,504 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-properties/list-1.i [2021-01-07 05:29:54,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/32e505957/1f7ff4c04e56449cb0dac51b82e13113/FLAG794222b7b [2021-01-07 05:29:54,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/32e505957/1f7ff4c04e56449cb0dac51b82e13113 [2021-01-07 05:29:54,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 05:29:54,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 05:29:54,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 05:29:54,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 05:29:54,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 05:29:54,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:29:54" (1/1) ... [2021-01-07 05:29:54,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15fd3d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:29:54, skipping insertion in model container [2021-01-07 05:29:54,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:29:54" (1/1) ... [2021-01-07 05:29:54,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 05:29:54,870 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],StructAccessExpression[IdentifierExpression[~p~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~t~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~p~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],StructAccessExpression[IdentifierExpression[~p~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~t~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~p~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],StructAccessExpression[IdentifierExpression[~p~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] [2021-01-07 05:29:55,168 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/list-properties/list-1.i[23408,23421] [2021-01-07 05:29:55,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:29:55,183 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],StructAccessExpression[IdentifierExpression[~p~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~t~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~p~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],StructAccessExpression[IdentifierExpression[~p~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~t~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~p~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],StructAccessExpression[IdentifierExpression[~p~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] [2021-01-07 05:29:55,229 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/list-properties/list-1.i[23408,23421] [2021-01-07 05:29:55,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:29:55,299 INFO L208 MainTranslator]: Completed translation [2021-01-07 05:29:55,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:29:55 WrapperNode [2021-01-07 05:29:55,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 05:29:55,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 05:29:55,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 05:29:55,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 05:29:55,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:29:55" (1/1) ... [2021-01-07 05:29:55,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:29:55" (1/1) ... [2021-01-07 05:29:55,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 05:29:55,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 05:29:55,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 05:29:55,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 05:29:55,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:29:55" (1/1) ... [2021-01-07 05:29:55,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:29:55" (1/1) ... [2021-01-07 05:29:55,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:29:55" (1/1) ... [2021-01-07 05:29:55,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:29:55" (1/1) ... [2021-01-07 05:29:55,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:29:55" (1/1) ... [2021-01-07 05:29:55,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:29:55" (1/1) ... [2021-01-07 05:29:55,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:29:55" (1/1) ... [2021-01-07 05:29:55,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 05:29:55,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 05:29:55,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 05:29:55,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 05:29:55,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:29:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:29:55,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-07 05:29:55,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-07 05:29:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-07 05:29:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-07 05:29:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 05:29:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-01-07 05:29:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 05:29:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 05:29:55,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 05:29:56,397 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 05:29:56,398 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-01-07 05:29:56,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:29:56 BoogieIcfgContainer [2021-01-07 05:29:56,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 05:29:56,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 05:29:56,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 05:29:56,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 05:29:56,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 05:29:54" (1/3) ... [2021-01-07 05:29:56,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6989b438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:29:56, skipping insertion in model container [2021-01-07 05:29:56,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:29:55" (2/3) ... [2021-01-07 05:29:56,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6989b438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:29:56, skipping insertion in model container [2021-01-07 05:29:56,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:29:56" (3/3) ... [2021-01-07 05:29:56,416 INFO L111 eAbstractionObserver]: Analyzing ICFG list-1.i [2021-01-07 05:29:56,423 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 05:29:56,428 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 26 error locations. [2021-01-07 05:29:56,447 INFO L253 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2021-01-07 05:29:56,469 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 05:29:56,469 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 05:29:56,469 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 05:29:56,470 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 05:29:56,470 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 05:29:56,470 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 05:29:56,470 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 05:29:56,470 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 05:29:56,487 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2021-01-07 05:29:56,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-07 05:29:56,494 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:29:56,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:29:56,496 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2021-01-07 05:29:56,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:29:56,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1807795398, now seen corresponding path program 1 times [2021-01-07 05:29:56,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:29:56,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803988801] [2021-01-07 05:29:56,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:29:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:29:56,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:29:56,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803988801] [2021-01-07 05:29:56,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:29:56,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:29:56,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16170782] [2021-01-07 05:29:56,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-07 05:29:56,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:29:56,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-07 05:29:56,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 05:29:56,711 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 2 states. [2021-01-07 05:29:56,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:29:56,730 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2021-01-07 05:29:56,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-07 05:29:56,732 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2021-01-07 05:29:56,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:29:56,742 INFO L225 Difference]: With dead ends: 66 [2021-01-07 05:29:56,742 INFO L226 Difference]: Without dead ends: 61 [2021-01-07 05:29:56,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 05:29:56,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-01-07 05:29:56,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-01-07 05:29:56,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2021-01-07 05:29:56,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2021-01-07 05:29:56,791 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 7 [2021-01-07 05:29:56,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:29:56,791 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2021-01-07 05:29:56,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-07 05:29:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2021-01-07 05:29:56,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-07 05:29:56,792 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:29:56,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:29:56,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 05:29:56,793 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2021-01-07 05:29:56,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:29:56,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1807769772, now seen corresponding path program 1 times [2021-01-07 05:29:56,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:29:56,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924594606] [2021-01-07 05:29:56,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:29:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:29:56,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:29:56,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924594606] [2021-01-07 05:29:56,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:29:56,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:29:56,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720422117] [2021-01-07 05:29:56,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 05:29:56,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:29:56,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 05:29:56,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 05:29:56,879 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 4 states. [2021-01-07 05:29:57,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:29:57,112 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2021-01-07 05:29:57,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 05:29:57,113 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-07 05:29:57,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:29:57,115 INFO L225 Difference]: With dead ends: 68 [2021-01-07 05:29:57,115 INFO L226 Difference]: Without dead ends: 68 [2021-01-07 05:29:57,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:29:57,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-01-07 05:29:57,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 63. [2021-01-07 05:29:57,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-01-07 05:29:57,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2021-01-07 05:29:57,129 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 7 [2021-01-07 05:29:57,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:29:57,129 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2021-01-07 05:29:57,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 05:29:57,130 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2021-01-07 05:29:57,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-07 05:29:57,130 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:29:57,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:29:57,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 05:29:57,131 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2021-01-07 05:29:57,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:29:57,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1807769773, now seen corresponding path program 1 times [2021-01-07 05:29:57,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:29:57,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838415154] [2021-01-07 05:29:57,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:29:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:29:57,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:29:57,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838415154] [2021-01-07 05:29:57,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:29:57,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:29:57,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943047675] [2021-01-07 05:29:57,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 05:29:57,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:29:57,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 05:29:57,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 05:29:57,224 INFO L87 Difference]: Start difference. First operand 63 states and 73 transitions. Second operand 4 states. [2021-01-07 05:29:57,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:29:57,490 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2021-01-07 05:29:57,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 05:29:57,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-07 05:29:57,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:29:57,493 INFO L225 Difference]: With dead ends: 88 [2021-01-07 05:29:57,493 INFO L226 Difference]: Without dead ends: 88 [2021-01-07 05:29:57,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:29:57,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-01-07 05:29:57,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 77. [2021-01-07 05:29:57,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2021-01-07 05:29:57,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2021-01-07 05:29:57,535 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 7 [2021-01-07 05:29:57,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:29:57,536 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2021-01-07 05:29:57,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 05:29:57,541 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2021-01-07 05:29:57,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-07 05:29:57,542 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:29:57,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:29:57,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-07 05:29:57,543 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2021-01-07 05:29:57,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:29:57,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1014157433, now seen corresponding path program 1 times [2021-01-07 05:29:57,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:29:57,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848256834] [2021-01-07 05:29:57,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:29:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:29:57,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:29:57,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848256834] [2021-01-07 05:29:57,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:29:57,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-07 05:29:57,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066870348] [2021-01-07 05:29:57,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 05:29:57,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:29:57,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 05:29:57,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 05:29:57,729 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand 6 states. [2021-01-07 05:29:58,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:29:58,070 INFO L93 Difference]: Finished difference Result 116 states and 123 transitions. [2021-01-07 05:29:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 05:29:58,071 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-01-07 05:29:58,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:29:58,077 INFO L225 Difference]: With dead ends: 116 [2021-01-07 05:29:58,078 INFO L226 Difference]: Without dead ends: 116 [2021-01-07 05:29:58,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:29:58,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-01-07 05:29:58,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 80. [2021-01-07 05:29:58,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2021-01-07 05:29:58,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2021-01-07 05:29:58,095 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 15 [2021-01-07 05:29:58,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:29:58,096 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2021-01-07 05:29:58,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 05:29:58,096 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2021-01-07 05:29:58,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-07 05:29:58,097 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:29:58,097 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:29:58,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-07 05:29:58,098 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2021-01-07 05:29:58,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:29:58,099 INFO L82 PathProgramCache]: Analyzing trace with hash -2016970849, now seen corresponding path program 1 times [2021-01-07 05:29:58,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:29:58,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801845519] [2021-01-07 05:29:58,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:29:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:29:58,187 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:29:58,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801845519] [2021-01-07 05:29:58,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:29:58,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-07 05:29:58,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465475793] [2021-01-07 05:29:58,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 05:29:58,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:29:58,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 05:29:58,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 05:29:58,190 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 6 states. [2021-01-07 05:29:58,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:29:58,528 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2021-01-07 05:29:58,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 05:29:58,529 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-01-07 05:29:58,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:29:58,530 INFO L225 Difference]: With dead ends: 105 [2021-01-07 05:29:58,531 INFO L226 Difference]: Without dead ends: 105 [2021-01-07 05:29:58,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-07 05:29:58,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-01-07 05:29:58,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 83. [2021-01-07 05:29:58,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2021-01-07 05:29:58,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 94 transitions. [2021-01-07 05:29:58,538 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 94 transitions. Word has length 15 [2021-01-07 05:29:58,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:29:58,538 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 94 transitions. [2021-01-07 05:29:58,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 05:29:58,539 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 94 transitions. [2021-01-07 05:29:58,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-07 05:29:58,540 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:29:58,540 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:29:58,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-07 05:29:58,540 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2021-01-07 05:29:58,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:29:58,541 INFO L82 PathProgramCache]: Analyzing trace with hash -2016970848, now seen corresponding path program 1 times [2021-01-07 05:29:58,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:29:58,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538522403] [2021-01-07 05:29:58,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:29:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:29:58,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:29:58,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538522403] [2021-01-07 05:29:58,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:29:58,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-07 05:29:58,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130806533] [2021-01-07 05:29:58,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 05:29:58,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:29:58,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 05:29:58,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 05:29:58,654 INFO L87 Difference]: Start difference. First operand 83 states and 94 transitions. Second operand 6 states. [2021-01-07 05:29:59,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:29:59,151 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2021-01-07 05:29:59,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 05:29:59,152 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-01-07 05:29:59,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:29:59,153 INFO L225 Difference]: With dead ends: 106 [2021-01-07 05:29:59,153 INFO L226 Difference]: Without dead ends: 106 [2021-01-07 05:29:59,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-07 05:29:59,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-01-07 05:29:59,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 74. [2021-01-07 05:29:59,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-01-07 05:29:59,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2021-01-07 05:29:59,159 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 15 [2021-01-07 05:29:59,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:29:59,159 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2021-01-07 05:29:59,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 05:29:59,160 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2021-01-07 05:29:59,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 05:29:59,161 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:29:59,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:29:59,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-07 05:29:59,161 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2021-01-07 05:29:59,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:29:59,162 INFO L82 PathProgramCache]: Analyzing trace with hash -399914149, now seen corresponding path program 1 times [2021-01-07 05:29:59,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:29:59,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561655892] [2021-01-07 05:29:59,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:29:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:29:59,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:29:59,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561655892] [2021-01-07 05:29:59,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:29:59,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-07 05:29:59,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520194751] [2021-01-07 05:29:59,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 05:29:59,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:29:59,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 05:29:59,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 05:29:59,282 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand 6 states. [2021-01-07 05:29:59,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:29:59,612 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2021-01-07 05:29:59,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 05:29:59,613 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-01-07 05:29:59,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:29:59,614 INFO L225 Difference]: With dead ends: 118 [2021-01-07 05:29:59,614 INFO L226 Difference]: Without dead ends: 118 [2021-01-07 05:29:59,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:29:59,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-01-07 05:29:59,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 78. [2021-01-07 05:29:59,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2021-01-07 05:29:59,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2021-01-07 05:29:59,620 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 17 [2021-01-07 05:29:59,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:29:59,620 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2021-01-07 05:29:59,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 05:29:59,621 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2021-01-07 05:29:59,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 05:29:59,622 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:29:59,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:29:59,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-07 05:29:59,622 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2021-01-07 05:29:59,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:29:59,623 INFO L82 PathProgramCache]: Analyzing trace with hash -399861594, now seen corresponding path program 1 times [2021-01-07 05:29:59,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:29:59,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601998499] [2021-01-07 05:29:59,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:29:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:29:59,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:29:59,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601998499] [2021-01-07 05:29:59,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:29:59,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-07 05:29:59,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676637132] [2021-01-07 05:29:59,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 05:29:59,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:29:59,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 05:29:59,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 05:29:59,698 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand 6 states. [2021-01-07 05:29:59,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:29:59,940 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2021-01-07 05:29:59,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 05:29:59,940 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-01-07 05:29:59,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:29:59,941 INFO L225 Difference]: With dead ends: 101 [2021-01-07 05:29:59,942 INFO L226 Difference]: Without dead ends: 101 [2021-01-07 05:29:59,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:29:59,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-01-07 05:29:59,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 78. [2021-01-07 05:29:59,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2021-01-07 05:29:59,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 87 transitions. [2021-01-07 05:29:59,947 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 87 transitions. Word has length 17 [2021-01-07 05:29:59,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:29:59,947 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 87 transitions. [2021-01-07 05:29:59,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 05:29:59,947 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2021-01-07 05:29:59,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 05:29:59,948 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:29:59,948 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:29:59,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-07 05:29:59,949 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2021-01-07 05:29:59,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:29:59,949 INFO L82 PathProgramCache]: Analyzing trace with hash -695675823, now seen corresponding path program 1 times [2021-01-07 05:29:59,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:29:59,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383746094] [2021-01-07 05:29:59,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:29:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:30:00,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:30:00,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383746094] [2021-01-07 05:30:00,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:30:00,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-07 05:30:00,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763203739] [2021-01-07 05:30:00,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 05:30:00,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:30:00,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 05:30:00,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 05:30:00,037 INFO L87 Difference]: Start difference. First operand 78 states and 87 transitions. Second operand 6 states. [2021-01-07 05:30:00,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:30:00,307 INFO L93 Difference]: Finished difference Result 84 states and 91 transitions. [2021-01-07 05:30:00,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 05:30:00,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-01-07 05:30:00,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:30:00,308 INFO L225 Difference]: With dead ends: 84 [2021-01-07 05:30:00,309 INFO L226 Difference]: Without dead ends: 84 [2021-01-07 05:30:00,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-07 05:30:00,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-01-07 05:30:00,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2021-01-07 05:30:00,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2021-01-07 05:30:00,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2021-01-07 05:30:00,314 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 17 [2021-01-07 05:30:00,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:30:00,314 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2021-01-07 05:30:00,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 05:30:00,314 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2021-01-07 05:30:00,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 05:30:00,315 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:30:00,315 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:30:00,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-07 05:30:00,316 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2021-01-07 05:30:00,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:30:00,316 INFO L82 PathProgramCache]: Analyzing trace with hash -695675822, now seen corresponding path program 1 times [2021-01-07 05:30:00,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:30:00,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469315343] [2021-01-07 05:30:00,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:30:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:30:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:30:00,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469315343] [2021-01-07 05:30:00,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:30:00,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-07 05:30:00,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994315743] [2021-01-07 05:30:00,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 05:30:00,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:30:00,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 05:30:00,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 05:30:00,444 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 6 states. [2021-01-07 05:30:00,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:30:00,833 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2021-01-07 05:30:00,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 05:30:00,834 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-01-07 05:30:00,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:30:00,835 INFO L225 Difference]: With dead ends: 81 [2021-01-07 05:30:00,835 INFO L226 Difference]: Without dead ends: 81 [2021-01-07 05:30:00,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-07 05:30:00,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-01-07 05:30:00,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 64. [2021-01-07 05:30:00,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-01-07 05:30:00,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2021-01-07 05:30:00,839 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 17 [2021-01-07 05:30:00,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:30:00,839 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2021-01-07 05:30:00,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 05:30:00,840 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2021-01-07 05:30:00,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-07 05:30:00,840 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:30:00,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:30:00,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-07 05:30:00,841 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2021-01-07 05:30:00,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:30:00,842 INFO L82 PathProgramCache]: Analyzing trace with hash 487568356, now seen corresponding path program 1 times [2021-01-07 05:30:00,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:30:00,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467241061] [2021-01-07 05:30:00,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:30:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 05:30:00,857 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 05:30:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 05:30:00,868 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 05:30:00,893 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-07 05:30:00,894 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-07 05:30:00,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-07 05:30:00,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.01 05:30:00 BoogieIcfgContainer [2021-01-07 05:30:00,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-07 05:30:00,927 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-07 05:30:00,927 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-07 05:30:00,927 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-07 05:30:00,928 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:29:56" (3/4) ... [2021-01-07 05:30:00,932 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-01-07 05:30:00,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-07 05:30:00,934 INFO L168 Benchmark]: Toolchain (without parser) took 6131.82 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 124.5 MB in the beginning and 95.6 MB in the end (delta: 29.0 MB). Peak memory consumption was 60.9 MB. Max. memory is 8.0 GB. [2021-01-07 05:30:00,935 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 05:30:00,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.06 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 101.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:30:00,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.63 ms. Allocated memory is still 151.0 MB. Free memory was 101.8 MB in the beginning and 99.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:30:00,938 INFO L168 Benchmark]: Boogie Preprocessor took 36.66 ms. Allocated memory is still 151.0 MB. Free memory was 99.9 MB in the beginning and 98.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:30:00,938 INFO L168 Benchmark]: RCFGBuilder took 1005.80 ms. Allocated memory is still 151.0 MB. Free memory was 98.4 MB in the beginning and 108.2 MB in the end (delta: -9.8 MB). Peak memory consumption was 3.7 MB. Max. memory is 8.0 GB. [2021-01-07 05:30:00,939 INFO L168 Benchmark]: TraceAbstraction took 4518.84 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 107.6 MB in the beginning and 95.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 43.5 MB. Max. memory is 8.0 GB. [2021-01-07 05:30:00,940 INFO L168 Benchmark]: Witness Printer took 5.19 ms. Allocated memory is still 181.4 MB. Free memory is still 95.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 05:30:00,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 494.06 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 101.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 57.63 ms. Allocated memory is still 151.0 MB. Free memory was 101.8 MB in the beginning and 99.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.66 ms. Allocated memory is still 151.0 MB. Free memory was 99.9 MB in the beginning and 98.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1005.80 ms. Allocated memory is still 151.0 MB. Free memory was 98.4 MB in the beginning and 108.2 MB in the end (delta: -9.8 MB). Peak memory consumption was 3.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4518.84 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 107.6 MB in the beginning and 95.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 43.5 MB. Max. memory is 8.0 GB. * Witness Printer took 5.19 ms. Allocated memory is still 181.4 MB. Free memory is still 95.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 531]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 531. Possible FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) [L534] List t; [L535] List p = a; [L536] COND FALSE !(__VERIFIER_nondet_int()) [L543] COND FALSE !(__VERIFIER_nondet_int()) [L550] p->h = 3 [L551] p = a [L552] EXPR p->h [L552] COND FALSE !(p->h == 1) [L554] EXPR p->h [L554] COND FALSE !(p->h == 2) [L556] EXPR p->h [L556] COND FALSE !(p->h != 3) [L558] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 66 locations, 26 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.4s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 440 SDtfs, 687 SDslu, 796 SDs, 0 SdLazy, 1132 SolverSat, 107 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 194 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 7740 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...