/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-MemCleanup-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/list-properties/list-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 04:55:33,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 04:55:33,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 04:55:33,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 04:55:33,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 04:55:33,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 04:55:33,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 04:55:33,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 04:55:33,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 04:55:33,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 04:55:33,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 04:55:33,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 04:55:33,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 04:55:33,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 04:55:33,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 04:55:33,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 04:55:33,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 04:55:33,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 04:55:33,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 04:55:33,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 04:55:33,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 04:55:33,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 04:55:33,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 04:55:33,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 04:55:33,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-07 04:55:33,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-07 04:55:33,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-07 04:55:33,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-07 04:55:33,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-07 04:55:33,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-07 04:55:33,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 04:55:33,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 04:55:33,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 04:55:33,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 04:55:33,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 04:55:33,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 04:55:33,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 04:55:33,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 04:55:33,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 04:55:33,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 04:55:33,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 04:55:33,617 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-64bit-Automizer_Default.epf [2021-01-07 04:55:33,647 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 04:55:33,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 04:55:33,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 04:55:33,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 04:55:33,650 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 04:55:33,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 04:55:33,651 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 04:55:33,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 04:55:33,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 04:55:33,651 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 04:55:33,652 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 04:55:33,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 04:55:33,652 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 04:55:33,652 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 04:55:33,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 04:55:33,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 04:55:33,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 04:55:33,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 04:55:33,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 04:55:33,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 04:55:33,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 04:55:33,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 04:55:33,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 04:55:33,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 04:55:34,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 04:55:34,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 04:55:34,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 04:55:34,053 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 04:55:34,053 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 04:55:34,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/list-2.i [2021-01-07 04:55:34,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7ed64078b/78cfe2c9426f48b48a3c19eda59c3629/FLAG868edc8dd [2021-01-07 04:55:34,808 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 04:55:34,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-properties/list-2.i [2021-01-07 04:55:34,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7ed64078b/78cfe2c9426f48b48a3c19eda59c3629/FLAG868edc8dd [2021-01-07 04:55:35,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7ed64078b/78cfe2c9426f48b48a3c19eda59c3629 [2021-01-07 04:55:35,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 04:55:35,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 04:55:35,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 04:55:35,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 04:55:35,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 04:55:35,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 04:55:35" (1/1) ... [2021-01-07 04:55:35,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6461b556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:35, skipping insertion in model container [2021-01-07 04:55:35,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 04:55:35" (1/1) ... [2021-01-07 04:55:35,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 04:55:35,164 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 04:55:35,553 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-2.i[23408,23421] [2021-01-07 04:55:35,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 04:55:35,582 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 04:55:35,674 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-2.i[23408,23421] [2021-01-07 04:55:35,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 04:55:35,774 INFO L208 MainTranslator]: Completed translation [2021-01-07 04:55:35,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:35 WrapperNode [2021-01-07 04:55:35,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 04:55:35,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 04:55:35,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 04:55:35,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 04:55:35,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:35" (1/1) ... [2021-01-07 04:55:35,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:35" (1/1) ... [2021-01-07 04:55:35,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 04:55:35,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 04:55:35,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 04:55:35,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 04:55:35,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:35" (1/1) ... [2021-01-07 04:55:35,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:35" (1/1) ... [2021-01-07 04:55:35,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:35" (1/1) ... [2021-01-07 04:55:35,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:35" (1/1) ... [2021-01-07 04:55:35,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:35" (1/1) ... [2021-01-07 04:55:35,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:35" (1/1) ... [2021-01-07 04:55:35,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:35" (1/1) ... [2021-01-07 04:55:35,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 04:55:35,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 04:55:35,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 04:55:35,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 04:55:35,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 04:55:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-07 04:55:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-07 04:55:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-07 04:55:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-07 04:55:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 04:55:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-01-07 04:55:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 04:55:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 04:55:36,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 04:55:36,682 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 04:55:36,682 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-01-07 04:55:36,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 04:55:36 BoogieIcfgContainer [2021-01-07 04:55:36,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 04:55:36,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 04:55:36,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 04:55:36,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 04:55:36,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 04:55:35" (1/3) ... [2021-01-07 04:55:36,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a861dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 04:55:36, skipping insertion in model container [2021-01-07 04:55:36,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:35" (2/3) ... [2021-01-07 04:55:36,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a861dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 04:55:36, skipping insertion in model container [2021-01-07 04:55:36,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 04:55:36" (3/3) ... [2021-01-07 04:55:36,694 INFO L111 eAbstractionObserver]: Analyzing ICFG list-2.i [2021-01-07 04:55:36,701 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 04:55:36,707 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 26 error locations. [2021-01-07 04:55:36,730 INFO L253 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2021-01-07 04:55:36,756 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 04:55:36,756 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 04:55:36,756 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 04:55:36,756 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 04:55:36,757 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 04:55:36,757 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 04:55:36,757 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 04:55:36,757 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 04:55:36,775 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2021-01-07 04:55:36,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-07 04:55:36,783 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:55:36,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:55:36,784 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 04:55:36,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:55:36,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1807795398, now seen corresponding path program 1 times [2021-01-07 04:55:36,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:55:36,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691139015] [2021-01-07 04:55:36,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:55:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:55:36,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:55:36,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691139015] [2021-01-07 04:55:36,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:55:36,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 04:55:36,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181612029] [2021-01-07 04:55:36,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-07 04:55:36,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:55:36,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-07 04:55:36,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 04:55:36,998 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 2 states. [2021-01-07 04:55:37,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:55:37,016 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2021-01-07 04:55:37,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-07 04:55:37,018 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2021-01-07 04:55:37,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:55:37,030 INFO L225 Difference]: With dead ends: 66 [2021-01-07 04:55:37,030 INFO L226 Difference]: Without dead ends: 61 [2021-01-07 04:55:37,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 04:55:37,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-01-07 04:55:37,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-01-07 04:55:37,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2021-01-07 04:55:37,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2021-01-07 04:55:37,073 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 7 [2021-01-07 04:55:37,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:55:37,074 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2021-01-07 04:55:37,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-07 04:55:37,074 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2021-01-07 04:55:37,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-07 04:55:37,075 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:55:37,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:55:37,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 04:55:37,076 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 04:55:37,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:55:37,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1807769772, now seen corresponding path program 1 times [2021-01-07 04:55:37,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:55:37,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296523217] [2021-01-07 04:55:37,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:55:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:55:37,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:55:37,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296523217] [2021-01-07 04:55:37,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:55:37,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:55:37,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080117802] [2021-01-07 04:55:37,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:55:37,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:55:37,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:55:37,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:55:37,230 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 4 states. [2021-01-07 04:55:37,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:55:37,562 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2021-01-07 04:55:37,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:55:37,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-07 04:55:37,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:55:37,570 INFO L225 Difference]: With dead ends: 68 [2021-01-07 04:55:37,570 INFO L226 Difference]: Without dead ends: 68 [2021-01-07 04:55:37,571 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 04:55:37,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-01-07 04:55:37,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 63. [2021-01-07 04:55:37,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-01-07 04:55:37,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2021-01-07 04:55:37,594 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 7 [2021-01-07 04:55:37,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:55:37,595 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2021-01-07 04:55:37,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:55:37,597 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2021-01-07 04:55:37,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-07 04:55:37,598 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:55:37,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:55:37,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 04:55:37,599 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 04:55:37,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:55:37,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1807769773, now seen corresponding path program 1 times [2021-01-07 04:55:37,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:55:37,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672293295] [2021-01-07 04:55:37,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:55:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:55:37,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:55:37,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672293295] [2021-01-07 04:55:37,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:55:37,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:55:37,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176714842] [2021-01-07 04:55:37,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:55:37,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:55:37,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:55:37,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:55:37,732 INFO L87 Difference]: Start difference. First operand 63 states and 73 transitions. Second operand 4 states. [2021-01-07 04:55:38,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:55:38,030 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2021-01-07 04:55:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:55:38,032 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-07 04:55:38,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:55:38,033 INFO L225 Difference]: With dead ends: 88 [2021-01-07 04:55:38,033 INFO L226 Difference]: Without dead ends: 88 [2021-01-07 04:55:38,033 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 04:55:38,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-01-07 04:55:38,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 77. [2021-01-07 04:55:38,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2021-01-07 04:55:38,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2021-01-07 04:55:38,042 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 7 [2021-01-07 04:55:38,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:55:38,042 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2021-01-07 04:55:38,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:55:38,042 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2021-01-07 04:55:38,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-07 04:55:38,043 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:55:38,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:55:38,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-07 04:55:38,058 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 04:55:38,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:55:38,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1014157433, now seen corresponding path program 1 times [2021-01-07 04:55:38,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:55:38,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956246386] [2021-01-07 04:55:38,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:55:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:55:38,175 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 04:55:38,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956246386] [2021-01-07 04:55:38,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:55:38,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-07 04:55:38,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151978114] [2021-01-07 04:55:38,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 04:55:38,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:55:38,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 04:55:38,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 04:55:38,179 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand 6 states. [2021-01-07 04:55:38,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:55:38,483 INFO L93 Difference]: Finished difference Result 116 states and 123 transitions. [2021-01-07 04:55:38,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 04:55:38,484 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-01-07 04:55:38,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:55:38,489 INFO L225 Difference]: With dead ends: 116 [2021-01-07 04:55:38,490 INFO L226 Difference]: Without dead ends: 116 [2021-01-07 04:55:38,490 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 04:55:38,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-01-07 04:55:38,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 80. [2021-01-07 04:55:38,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2021-01-07 04:55:38,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2021-01-07 04:55:38,513 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 15 [2021-01-07 04:55:38,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:55:38,514 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2021-01-07 04:55:38,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 04:55:38,517 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2021-01-07 04:55:38,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-07 04:55:38,518 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:55:38,518 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:55:38,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-07 04:55:38,519 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 04:55:38,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:55:38,519 INFO L82 PathProgramCache]: Analyzing trace with hash -2016970849, now seen corresponding path program 1 times [2021-01-07 04:55:38,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:55:38,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894806410] [2021-01-07 04:55:38,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:55:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:55:38,678 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 04:55:38,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894806410] [2021-01-07 04:55:38,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:55:38,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-07 04:55:38,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355011218] [2021-01-07 04:55:38,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 04:55:38,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:55:38,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 04:55:38,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 04:55:38,682 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 6 states. [2021-01-07 04:55:39,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:55:39,129 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2021-01-07 04:55:39,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 04:55:39,130 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-01-07 04:55:39,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:55:39,132 INFO L225 Difference]: With dead ends: 105 [2021-01-07 04:55:39,132 INFO L226 Difference]: Without dead ends: 105 [2021-01-07 04:55:39,132 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 04:55:39,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-01-07 04:55:39,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 83. [2021-01-07 04:55:39,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2021-01-07 04:55:39,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 94 transitions. [2021-01-07 04:55:39,139 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 94 transitions. Word has length 15 [2021-01-07 04:55:39,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:55:39,140 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 94 transitions. [2021-01-07 04:55:39,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 04:55:39,140 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 94 transitions. [2021-01-07 04:55:39,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-07 04:55:39,141 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:55:39,141 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:55:39,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-07 04:55:39,141 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 04:55:39,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:55:39,142 INFO L82 PathProgramCache]: Analyzing trace with hash -2016970848, now seen corresponding path program 1 times [2021-01-07 04:55:39,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:55:39,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521486388] [2021-01-07 04:55:39,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:55:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:55:39,302 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 04:55:39,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521486388] [2021-01-07 04:55:39,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:55:39,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-07 04:55:39,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867693345] [2021-01-07 04:55:39,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 04:55:39,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:55:39,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 04:55:39,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 04:55:39,305 INFO L87 Difference]: Start difference. First operand 83 states and 94 transitions. Second operand 6 states. [2021-01-07 04:55:39,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:55:39,870 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2021-01-07 04:55:39,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 04:55:39,871 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-01-07 04:55:39,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:55:39,872 INFO L225 Difference]: With dead ends: 106 [2021-01-07 04:55:39,872 INFO L226 Difference]: Without dead ends: 106 [2021-01-07 04:55:39,873 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 04:55:39,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-01-07 04:55:39,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 74. [2021-01-07 04:55:39,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-01-07 04:55:39,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2021-01-07 04:55:39,879 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 15 [2021-01-07 04:55:39,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:55:39,879 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2021-01-07 04:55:39,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 04:55:39,879 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2021-01-07 04:55:39,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 04:55:39,880 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:55:39,880 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 04:55:39,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-07 04:55:39,881 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 04:55:39,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:55:39,881 INFO L82 PathProgramCache]: Analyzing trace with hash -399914149, now seen corresponding path program 1 times [2021-01-07 04:55:39,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:55:39,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119702858] [2021-01-07 04:55:39,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:55:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:55:39,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:55:39,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119702858] [2021-01-07 04:55:39,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:55:39,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-07 04:55:39,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816657537] [2021-01-07 04:55:39,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 04:55:39,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:55:39,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 04:55:39,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 04:55:39,961 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand 6 states. [2021-01-07 04:55:40,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:55:40,255 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2021-01-07 04:55:40,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 04:55:40,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-01-07 04:55:40,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:55:40,258 INFO L225 Difference]: With dead ends: 118 [2021-01-07 04:55:40,258 INFO L226 Difference]: Without dead ends: 118 [2021-01-07 04:55:40,259 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 04:55:40,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-01-07 04:55:40,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 78. [2021-01-07 04:55:40,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2021-01-07 04:55:40,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2021-01-07 04:55:40,264 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 17 [2021-01-07 04:55:40,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:55:40,264 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2021-01-07 04:55:40,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 04:55:40,264 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2021-01-07 04:55:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 04:55:40,265 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:55:40,265 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 04:55:40,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-07 04:55:40,266 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 04:55:40,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:55:40,267 INFO L82 PathProgramCache]: Analyzing trace with hash -399861594, now seen corresponding path program 1 times [2021-01-07 04:55:40,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:55:40,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329081317] [2021-01-07 04:55:40,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:55:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:55:40,345 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 04:55:40,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329081317] [2021-01-07 04:55:40,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:55:40,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-07 04:55:40,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174114359] [2021-01-07 04:55:40,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 04:55:40,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:55:40,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 04:55:40,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 04:55:40,348 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand 6 states. [2021-01-07 04:55:40,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:55:40,617 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2021-01-07 04:55:40,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 04:55:40,618 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-01-07 04:55:40,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:55:40,619 INFO L225 Difference]: With dead ends: 101 [2021-01-07 04:55:40,619 INFO L226 Difference]: Without dead ends: 101 [2021-01-07 04:55:40,620 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 04:55:40,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-01-07 04:55:40,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 78. [2021-01-07 04:55:40,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2021-01-07 04:55:40,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 87 transitions. [2021-01-07 04:55:40,625 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 87 transitions. Word has length 17 [2021-01-07 04:55:40,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:55:40,625 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 87 transitions. [2021-01-07 04:55:40,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 04:55:40,625 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2021-01-07 04:55:40,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 04:55:40,626 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:55:40,626 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:55:40,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-07 04:55:40,627 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 04:55:40,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:55:40,627 INFO L82 PathProgramCache]: Analyzing trace with hash -695675823, now seen corresponding path program 1 times [2021-01-07 04:55:40,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:55:40,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746555513] [2021-01-07 04:55:40,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:55:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:55:40,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:55:40,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746555513] [2021-01-07 04:55:40,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:55:40,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-07 04:55:40,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424142760] [2021-01-07 04:55:40,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 04:55:40,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:55:40,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 04:55:40,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 04:55:40,723 INFO L87 Difference]: Start difference. First operand 78 states and 87 transitions. Second operand 6 states. [2021-01-07 04:55:41,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:55:41,008 INFO L93 Difference]: Finished difference Result 84 states and 91 transitions. [2021-01-07 04:55:41,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 04:55:41,009 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-01-07 04:55:41,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:55:41,010 INFO L225 Difference]: With dead ends: 84 [2021-01-07 04:55:41,010 INFO L226 Difference]: Without dead ends: 84 [2021-01-07 04:55:41,010 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 04:55:41,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-01-07 04:55:41,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2021-01-07 04:55:41,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2021-01-07 04:55:41,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2021-01-07 04:55:41,027 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 17 [2021-01-07 04:55:41,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:55:41,027 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2021-01-07 04:55:41,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 04:55:41,028 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2021-01-07 04:55:41,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 04:55:41,029 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:55:41,030 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:55:41,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-07 04:55:41,030 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 04:55:41,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:55:41,031 INFO L82 PathProgramCache]: Analyzing trace with hash -695675822, now seen corresponding path program 1 times [2021-01-07 04:55:41,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:55:41,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891383481] [2021-01-07 04:55:41,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:55:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:55:41,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:55:41,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891383481] [2021-01-07 04:55:41,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:55:41,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-07 04:55:41,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923156330] [2021-01-07 04:55:41,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 04:55:41,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:55:41,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 04:55:41,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 04:55:41,233 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 6 states. [2021-01-07 04:55:41,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:55:41,619 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2021-01-07 04:55:41,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 04:55:41,621 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-01-07 04:55:41,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:55:41,622 INFO L225 Difference]: With dead ends: 81 [2021-01-07 04:55:41,622 INFO L226 Difference]: Without dead ends: 81 [2021-01-07 04:55:41,622 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 04:55:41,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-01-07 04:55:41,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 64. [2021-01-07 04:55:41,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-01-07 04:55:41,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2021-01-07 04:55:41,625 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 17 [2021-01-07 04:55:41,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:55:41,626 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2021-01-07 04:55:41,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 04:55:41,626 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2021-01-07 04:55:41,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-07 04:55:41,627 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:55:41,627 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 04:55:41,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-07 04:55:41,627 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 04:55:41,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:55:41,628 INFO L82 PathProgramCache]: Analyzing trace with hash 487568356, now seen corresponding path program 1 times [2021-01-07 04:55:41,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:55:41,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921224980] [2021-01-07 04:55:41,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:55:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 04:55:41,657 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 04:55:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 04:55:41,676 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 04:55:41,702 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-07 04:55:41,702 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-07 04:55:41,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-07 04:55:41,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.01 04:55:41 BoogieIcfgContainer [2021-01-07 04:55:41,735 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-07 04:55:41,736 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-07 04:55:41,736 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-07 04:55:41,736 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-07 04:55:41,737 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 04:55:36" (3/4) ... [2021-01-07 04:55:41,739 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-01-07 04:55:41,791 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/list-properties/list-2.i-witness.graphml [2021-01-07 04:55:41,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-07 04:55:41,794 INFO L168 Benchmark]: Toolchain (without parser) took 6689.88 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 124.9 MB in the beginning and 111.1 MB in the end (delta: 13.8 MB). Peak memory consumption was 50.4 MB. Max. memory is 8.0 GB. [2021-01-07 04:55:41,794 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 04:55:41,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.90 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 102.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-01-07 04:55:41,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.56 ms. Allocated memory is still 151.0 MB. Free memory was 102.6 MB in the beginning and 100.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 04:55:41,796 INFO L168 Benchmark]: Boogie Preprocessor took 62.57 ms. Allocated memory is still 151.0 MB. Free memory was 100.7 MB in the beginning and 99.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-07 04:55:41,797 INFO L168 Benchmark]: RCFGBuilder took 735.50 ms. Allocated memory is still 151.0 MB. Free memory was 99.1 MB in the beginning and 109.8 MB in the end (delta: -10.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 8.0 GB. [2021-01-07 04:55:41,798 INFO L168 Benchmark]: TraceAbstraction took 5049.03 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 109.8 MB in the beginning and 113.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 32.3 MB. Max. memory is 8.0 GB. [2021-01-07 04:55:41,798 INFO L168 Benchmark]: Witness Printer took 55.46 ms. Allocated memory is still 186.6 MB. Free memory was 113.2 MB in the beginning and 111.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-07 04:55:41,802 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 669.90 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 102.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 107.56 ms. Allocated memory is still 151.0 MB. Free memory was 102.6 MB in the beginning and 100.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.57 ms. Allocated memory is still 151.0 MB. Free memory was 100.7 MB in the beginning and 99.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 735.50 ms. Allocated memory is still 151.0 MB. Free memory was 99.1 MB in the beginning and 109.8 MB in the end (delta: -10.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5049.03 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 109.8 MB in the beginning and 113.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 32.3 MB. Max. memory is 8.0 GB. * Witness Printer took 55.46 ms. Allocated memory is still 186.6 MB. Free memory was 113.2 MB in the beginning and 111.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 531]: not all allocated memory was freed not all allocated memory was freed We found a 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 == 2) [L554] EXPR p->h [L554] COND FALSE !(p->h == 1) [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: 4.9s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 3.3s, 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, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s 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, 0.8s 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 proved your program to be incorrect! Received shutdown request...