/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/forester-heap/sll-circular-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 16:44:05,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 16:44:05,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 16:44:05,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 16:44:05,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 16:44:05,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 16:44:05,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 16:44:05,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 16:44:05,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 16:44:05,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 16:44:05,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 16:44:05,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 16:44:05,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 16:44:05,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 16:44:05,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 16:44:05,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 16:44:05,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 16:44:05,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 16:44:05,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 16:44:05,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 16:44:05,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 16:44:05,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 16:44:05,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 16:44:05,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 16:44:05,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 16:44:05,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 16:44:05,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 16:44:05,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 16:44:05,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 16:44:05,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 16:44:05,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 16:44:05,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 16:44:05,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 16:44:05,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 16:44:05,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 16:44:05,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 16:44:05,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 16:44:05,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 16:44:05,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 16:44:05,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 16:44:05,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 16:44:05,167 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-64bit-Automizer_Default.epf [2020-12-23 16:44:05,196 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 16:44:05,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 16:44:05,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 16:44:05,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 16:44:05,198 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 16:44:05,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 16:44:05,199 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-23 16:44:05,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 16:44:05,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 16:44:05,200 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-23 16:44:05,200 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-23 16:44:05,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 16:44:05,200 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-23 16:44:05,200 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 16:44:05,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 16:44:05,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 16:44:05,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 16:44:05,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 16:44:05,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 16:44:05,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 16:44:05,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 16:44:05,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 16:44:05,203 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 16:44:05,203 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 16:44:05,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 16:44:05,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 16:44:05,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 16:44:05,613 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 16:44:05,614 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 16:44:05,615 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-circular-2.i [2020-12-23 16:44:05,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/b0a7118bd/98c23ad10fd64aad8eb99389b0a86e29/FLAGa2f4a78d6 [2020-12-23 16:44:06,500 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 16:44:06,500 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-circular-2.i [2020-12-23 16:44:06,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/b0a7118bd/98c23ad10fd64aad8eb99389b0a86e29/FLAGa2f4a78d6 [2020-12-23 16:44:06,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/b0a7118bd/98c23ad10fd64aad8eb99389b0a86e29 [2020-12-23 16:44:06,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 16:44:06,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 16:44:06,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 16:44:06,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 16:44:06,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 16:44:06,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:44:06" (1/1) ... [2020-12-23 16:44:06,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aba32b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:06, skipping insertion in model container [2020-12-23 16:44:06,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:44:06" (1/1) ... [2020-12-23 16:44:06,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 16:44:06,885 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head~0,],base],StructAccessExpression[IdentifierExpression[~head~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~head~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],StructAccessExpression[IdentifierExpression[~x~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],StructAccessExpression[IdentifierExpression[~x~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~state~0,] left hand side expression in assignment: lhs: VariableLHS[~state~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] [2020-12-23 16:44:07,244 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/forester-heap/sll-circular-2.i[22324,22337] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 16:44:07,251 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/forester-heap/sll-circular-2.i[22430,22443] [2020-12-23 16:44:07,254 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/forester-heap/sll-circular-2.i[22554,22567] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~head~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 16:44:07,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:44:07,272 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head~0,],base],StructAccessExpression[IdentifierExpression[~head~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~head~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],StructAccessExpression[IdentifierExpression[~x~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],StructAccessExpression[IdentifierExpression[~x~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~state~0,] left hand side expression in assignment: lhs: VariableLHS[~state~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] [2020-12-23 16:44:07,314 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/forester-heap/sll-circular-2.i[22324,22337] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 16:44:07,316 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/forester-heap/sll-circular-2.i[22430,22443] [2020-12-23 16:44:07,318 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/forester-heap/sll-circular-2.i[22554,22567] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~head~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 16:44:07,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:44:07,383 INFO L208 MainTranslator]: Completed translation [2020-12-23 16:44:07,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:07 WrapperNode [2020-12-23 16:44:07,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 16:44:07,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 16:44:07,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 16:44:07,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 16:44:07,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:07" (1/1) ... [2020-12-23 16:44:07,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:07" (1/1) ... [2020-12-23 16:44:07,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 16:44:07,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 16:44:07,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 16:44:07,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 16:44:07,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:07" (1/1) ... [2020-12-23 16:44:07,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:07" (1/1) ... [2020-12-23 16:44:07,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:07" (1/1) ... [2020-12-23 16:44:07,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:07" (1/1) ... [2020-12-23 16:44:07,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:07" (1/1) ... [2020-12-23 16:44:07,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:07" (1/1) ... [2020-12-23 16:44:07,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:07" (1/1) ... [2020-12-23 16:44:07,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 16:44:07,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 16:44:07,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 16:44:07,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 16:44:07,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 16:44:07,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 16:44:07,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 16:44:07,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 16:44:07,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 16:44:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 16:44:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 16:44:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 16:44:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 16:44:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 16:44:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 16:44:08,341 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 16:44:08,342 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-23 16:44:08,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:44:08 BoogieIcfgContainer [2020-12-23 16:44:08,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 16:44:08,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 16:44:08,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 16:44:08,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 16:44:08,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:44:06" (1/3) ... [2020-12-23 16:44:08,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3980eea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:44:08, skipping insertion in model container [2020-12-23 16:44:08,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:07" (2/3) ... [2020-12-23 16:44:08,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3980eea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:44:08, skipping insertion in model container [2020-12-23 16:44:08,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:44:08" (3/3) ... [2020-12-23 16:44:08,353 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-circular-2.i [2020-12-23 16:44:08,361 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 16:44:08,367 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 46 error locations. [2020-12-23 16:44:08,391 INFO L253 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2020-12-23 16:44:08,416 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 16:44:08,416 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-23 16:44:08,416 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 16:44:08,417 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 16:44:08,417 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 16:44:08,417 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 16:44:08,417 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 16:44:08,417 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 16:44:08,439 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states. [2020-12-23 16:44:08,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 16:44:08,447 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:08,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 16:44:08,449 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:08,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:08,456 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2020-12-23 16:44:08,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:08,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113382409] [2020-12-23 16:44:08,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:08,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:08,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113382409] [2020-12-23 16:44:08,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:08,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 16:44:08,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494767207] [2020-12-23 16:44:08,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:44:08,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:08,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:44:08,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:44:08,685 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 3 states. [2020-12-23 16:44:08,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:08,821 INFO L93 Difference]: Finished difference Result 107 states and 114 transitions. [2020-12-23 16:44:08,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:44:08,824 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 16:44:08,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:08,835 INFO L225 Difference]: With dead ends: 107 [2020-12-23 16:44:08,836 INFO L226 Difference]: Without dead ends: 105 [2020-12-23 16:44:08,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:44:08,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-12-23 16:44:08,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 95. [2020-12-23 16:44:08,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-12-23 16:44:08,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 101 transitions. [2020-12-23 16:44:08,889 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 101 transitions. Word has length 3 [2020-12-23 16:44:08,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:08,890 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 101 transitions. [2020-12-23 16:44:08,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:44:08,890 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 101 transitions. [2020-12-23 16:44:08,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 16:44:08,890 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:08,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 16:44:08,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 16:44:08,892 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:08,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:08,893 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-12-23 16:44:08,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:08,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197831754] [2020-12-23 16:44:08,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:08,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197831754] [2020-12-23 16:44:08,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:08,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 16:44:08,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58548717] [2020-12-23 16:44:08,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:44:08,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:08,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:44:08,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:44:08,984 INFO L87 Difference]: Start difference. First operand 95 states and 101 transitions. Second operand 3 states. [2020-12-23 16:44:09,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:09,089 INFO L93 Difference]: Finished difference Result 103 states and 109 transitions. [2020-12-23 16:44:09,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:44:09,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 16:44:09,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:09,092 INFO L225 Difference]: With dead ends: 103 [2020-12-23 16:44:09,092 INFO L226 Difference]: Without dead ends: 103 [2020-12-23 16:44:09,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:44:09,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-12-23 16:44:09,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 91. [2020-12-23 16:44:09,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-12-23 16:44:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 97 transitions. [2020-12-23 16:44:09,104 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 97 transitions. Word has length 3 [2020-12-23 16:44:09,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:09,104 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 97 transitions. [2020-12-23 16:44:09,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:44:09,104 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 97 transitions. [2020-12-23 16:44:09,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 16:44:09,105 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:09,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:09,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 16:44:09,106 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:09,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:09,107 INFO L82 PathProgramCache]: Analyzing trace with hash 59263651, now seen corresponding path program 1 times [2020-12-23 16:44:09,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:09,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015265280] [2020-12-23 16:44:09,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:09,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:09,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015265280] [2020-12-23 16:44:09,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:09,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:44:09,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694180208] [2020-12-23 16:44:09,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:44:09,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:09,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:44:09,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:44:09,210 INFO L87 Difference]: Start difference. First operand 91 states and 97 transitions. Second operand 4 states. [2020-12-23 16:44:09,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:09,405 INFO L93 Difference]: Finished difference Result 89 states and 96 transitions. [2020-12-23 16:44:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 16:44:09,410 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-23 16:44:09,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:09,416 INFO L225 Difference]: With dead ends: 89 [2020-12-23 16:44:09,418 INFO L226 Difference]: Without dead ends: 89 [2020-12-23 16:44:09,419 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 [2020-12-23 16:44:09,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-23 16:44:09,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 80. [2020-12-23 16:44:09,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-23 16:44:09,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2020-12-23 16:44:09,430 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 8 [2020-12-23 16:44:09,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:09,430 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2020-12-23 16:44:09,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:44:09,431 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2020-12-23 16:44:09,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 16:44:09,431 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:09,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:09,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 16:44:09,434 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:09,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:09,435 INFO L82 PathProgramCache]: Analyzing trace with hash 59263652, now seen corresponding path program 1 times [2020-12-23 16:44:09,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:09,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391008465] [2020-12-23 16:44:09,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:09,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:09,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391008465] [2020-12-23 16:44:09,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:09,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:44:09,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53896004] [2020-12-23 16:44:09,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:44:09,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:09,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:44:09,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:44:09,510 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand 4 states. [2020-12-23 16:44:09,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:09,673 INFO L93 Difference]: Finished difference Result 99 states and 106 transitions. [2020-12-23 16:44:09,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:44:09,674 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-23 16:44:09,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:09,675 INFO L225 Difference]: With dead ends: 99 [2020-12-23 16:44:09,675 INFO L226 Difference]: Without dead ends: 99 [2020-12-23 16:44:09,676 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 [2020-12-23 16:44:09,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-12-23 16:44:09,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 85. [2020-12-23 16:44:09,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-12-23 16:44:09,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 92 transitions. [2020-12-23 16:44:09,684 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 92 transitions. Word has length 8 [2020-12-23 16:44:09,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:09,684 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 92 transitions. [2020-12-23 16:44:09,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:44:09,685 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions. [2020-12-23 16:44:09,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 16:44:09,685 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:09,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:09,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 16:44:09,686 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:09,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:09,687 INFO L82 PathProgramCache]: Analyzing trace with hash 292159341, now seen corresponding path program 1 times [2020-12-23 16:44:09,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:09,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147946919] [2020-12-23 16:44:09,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:09,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:09,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147946919] [2020-12-23 16:44:09,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:09,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 16:44:09,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856570370] [2020-12-23 16:44:09,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 16:44:09,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:09,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 16:44:09,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 16:44:09,817 INFO L87 Difference]: Start difference. First operand 85 states and 92 transitions. Second operand 6 states. [2020-12-23 16:44:10,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:10,101 INFO L93 Difference]: Finished difference Result 135 states and 145 transitions. [2020-12-23 16:44:10,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 16:44:10,102 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-23 16:44:10,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:10,103 INFO L225 Difference]: With dead ends: 135 [2020-12-23 16:44:10,103 INFO L226 Difference]: Without dead ends: 135 [2020-12-23 16:44:10,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-23 16:44:10,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-12-23 16:44:10,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 84. [2020-12-23 16:44:10,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-23 16:44:10,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2020-12-23 16:44:10,112 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 11 [2020-12-23 16:44:10,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:10,112 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2020-12-23 16:44:10,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 16:44:10,112 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2020-12-23 16:44:10,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 16:44:10,113 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:10,113 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:10,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 16:44:10,114 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:10,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:10,115 INFO L82 PathProgramCache]: Analyzing trace with hash 292159342, now seen corresponding path program 1 times [2020-12-23 16:44:10,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:10,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295190497] [2020-12-23 16:44:10,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:10,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:10,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295190497] [2020-12-23 16:44:10,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:10,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 16:44:10,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138961320] [2020-12-23 16:44:10,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 16:44:10,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:10,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 16:44:10,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 16:44:10,265 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand 6 states. [2020-12-23 16:44:10,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:10,639 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2020-12-23 16:44:10,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 16:44:10,640 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-23 16:44:10,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:10,641 INFO L225 Difference]: With dead ends: 133 [2020-12-23 16:44:10,641 INFO L226 Difference]: Without dead ends: 133 [2020-12-23 16:44:10,641 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 [2020-12-23 16:44:10,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-12-23 16:44:10,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 74. [2020-12-23 16:44:10,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-23 16:44:10,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 80 transitions. [2020-12-23 16:44:10,647 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 80 transitions. Word has length 11 [2020-12-23 16:44:10,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:10,647 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 80 transitions. [2020-12-23 16:44:10,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 16:44:10,648 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 80 transitions. [2020-12-23 16:44:10,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 16:44:10,648 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:10,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:10,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 16:44:10,649 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:10,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:10,650 INFO L82 PathProgramCache]: Analyzing trace with hash 459370694, now seen corresponding path program 1 times [2020-12-23 16:44:10,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:10,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136390912] [2020-12-23 16:44:10,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:10,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:10,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136390912] [2020-12-23 16:44:10,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:10,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 16:44:10,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526675993] [2020-12-23 16:44:10,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 16:44:10,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:10,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 16:44:10,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-23 16:44:10,785 INFO L87 Difference]: Start difference. First operand 74 states and 80 transitions. Second operand 8 states. [2020-12-23 16:44:11,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:11,101 INFO L93 Difference]: Finished difference Result 162 states and 173 transitions. [2020-12-23 16:44:11,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 16:44:11,102 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-12-23 16:44:11,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:11,103 INFO L225 Difference]: With dead ends: 162 [2020-12-23 16:44:11,103 INFO L226 Difference]: Without dead ends: 162 [2020-12-23 16:44:11,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-12-23 16:44:11,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-12-23 16:44:11,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 80. [2020-12-23 16:44:11,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-23 16:44:11,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2020-12-23 16:44:11,114 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 12 [2020-12-23 16:44:11,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:11,115 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2020-12-23 16:44:11,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 16:44:11,115 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2020-12-23 16:44:11,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 16:44:11,116 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:11,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:11,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 16:44:11,119 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:11,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:11,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1355593788, now seen corresponding path program 1 times [2020-12-23 16:44:11,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:11,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556967585] [2020-12-23 16:44:11,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:11,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:11,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556967585] [2020-12-23 16:44:11,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:11,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 16:44:11,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937232632] [2020-12-23 16:44:11,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 16:44:11,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:11,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 16:44:11,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-23 16:44:11,301 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 8 states. [2020-12-23 16:44:11,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:11,652 INFO L93 Difference]: Finished difference Result 123 states and 132 transitions. [2020-12-23 16:44:11,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 16:44:11,652 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-12-23 16:44:11,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:11,653 INFO L225 Difference]: With dead ends: 123 [2020-12-23 16:44:11,653 INFO L226 Difference]: Without dead ends: 123 [2020-12-23 16:44:11,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-12-23 16:44:11,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-12-23 16:44:11,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 82. [2020-12-23 16:44:11,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-23 16:44:11,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2020-12-23 16:44:11,659 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 13 [2020-12-23 16:44:11,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:11,659 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2020-12-23 16:44:11,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 16:44:11,659 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2020-12-23 16:44:11,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 16:44:11,660 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:11,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:11,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 16:44:11,661 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:11,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:11,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1355593789, now seen corresponding path program 1 times [2020-12-23 16:44:11,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:11,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539533905] [2020-12-23 16:44:11,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:11,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:11,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539533905] [2020-12-23 16:44:11,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:11,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 16:44:11,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662374538] [2020-12-23 16:44:11,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 16:44:11,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:11,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 16:44:11,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-23 16:44:11,888 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 8 states. [2020-12-23 16:44:12,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:12,393 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2020-12-23 16:44:12,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 16:44:12,394 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-12-23 16:44:12,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:12,395 INFO L225 Difference]: With dead ends: 156 [2020-12-23 16:44:12,395 INFO L226 Difference]: Without dead ends: 156 [2020-12-23 16:44:12,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-12-23 16:44:12,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-12-23 16:44:12,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 94. [2020-12-23 16:44:12,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-23 16:44:12,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 108 transitions. [2020-12-23 16:44:12,401 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 108 transitions. Word has length 13 [2020-12-23 16:44:12,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:12,401 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 108 transitions. [2020-12-23 16:44:12,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 16:44:12,401 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 108 transitions. [2020-12-23 16:44:12,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 16:44:12,402 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:12,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:12,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 16:44:12,403 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:12,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:12,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1082869388, now seen corresponding path program 1 times [2020-12-23 16:44:12,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:12,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104702035] [2020-12-23 16:44:12,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:12,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:12,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104702035] [2020-12-23 16:44:12,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:12,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 16:44:12,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589303102] [2020-12-23 16:44:12,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 16:44:12,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:12,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 16:44:12,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-23 16:44:12,546 INFO L87 Difference]: Start difference. First operand 94 states and 108 transitions. Second operand 9 states. [2020-12-23 16:44:13,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:13,008 INFO L93 Difference]: Finished difference Result 142 states and 153 transitions. [2020-12-23 16:44:13,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 16:44:13,009 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-12-23 16:44:13,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:13,010 INFO L225 Difference]: With dead ends: 142 [2020-12-23 16:44:13,010 INFO L226 Difference]: Without dead ends: 142 [2020-12-23 16:44:13,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-12-23 16:44:13,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-12-23 16:44:13,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 94. [2020-12-23 16:44:13,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-23 16:44:13,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 107 transitions. [2020-12-23 16:44:13,015 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 107 transitions. Word has length 16 [2020-12-23 16:44:13,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:13,015 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 107 transitions. [2020-12-23 16:44:13,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 16:44:13,016 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 107 transitions. [2020-12-23 16:44:13,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 16:44:13,016 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:13,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:13,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 16:44:13,017 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:13,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:13,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1082869387, now seen corresponding path program 1 times [2020-12-23 16:44:13,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:13,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661137773] [2020-12-23 16:44:13,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:13,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:13,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661137773] [2020-12-23 16:44:13,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:13,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 16:44:13,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620020091] [2020-12-23 16:44:13,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 16:44:13,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:13,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 16:44:13,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-23 16:44:13,219 INFO L87 Difference]: Start difference. First operand 94 states and 107 transitions. Second operand 8 states. [2020-12-23 16:44:13,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:13,597 INFO L93 Difference]: Finished difference Result 152 states and 163 transitions. [2020-12-23 16:44:13,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 16:44:13,597 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-12-23 16:44:13,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:13,599 INFO L225 Difference]: With dead ends: 152 [2020-12-23 16:44:13,599 INFO L226 Difference]: Without dead ends: 152 [2020-12-23 16:44:13,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-12-23 16:44:13,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-12-23 16:44:13,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 94. [2020-12-23 16:44:13,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-23 16:44:13,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 106 transitions. [2020-12-23 16:44:13,604 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 106 transitions. Word has length 16 [2020-12-23 16:44:13,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:13,604 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 106 transitions. [2020-12-23 16:44:13,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 16:44:13,604 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 106 transitions. [2020-12-23 16:44:13,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 16:44:13,607 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:13,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:13,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 16:44:13,607 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:13,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:13,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1174743413, now seen corresponding path program 1 times [2020-12-23 16:44:13,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:13,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353690934] [2020-12-23 16:44:13,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:13,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:13,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353690934] [2020-12-23 16:44:13,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:13,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 16:44:13,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211391097] [2020-12-23 16:44:13,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 16:44:13,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:13,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 16:44:13,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 16:44:13,657 INFO L87 Difference]: Start difference. First operand 94 states and 106 transitions. Second operand 6 states. [2020-12-23 16:44:13,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:13,859 INFO L93 Difference]: Finished difference Result 142 states and 156 transitions. [2020-12-23 16:44:13,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 16:44:13,859 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-23 16:44:13,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:13,860 INFO L225 Difference]: With dead ends: 142 [2020-12-23 16:44:13,861 INFO L226 Difference]: Without dead ends: 142 [2020-12-23 16:44:13,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-23 16:44:13,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-12-23 16:44:13,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 92. [2020-12-23 16:44:13,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-12-23 16:44:13,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 104 transitions. [2020-12-23 16:44:13,865 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 104 transitions. Word has length 16 [2020-12-23 16:44:13,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:13,865 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 104 transitions. [2020-12-23 16:44:13,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 16:44:13,865 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 104 transitions. [2020-12-23 16:44:13,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-23 16:44:13,866 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:13,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:13,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 16:44:13,867 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:13,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:13,867 INFO L82 PathProgramCache]: Analyzing trace with hash 790772532, now seen corresponding path program 1 times [2020-12-23 16:44:13,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:13,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446093203] [2020-12-23 16:44:13,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:13,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:13,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446093203] [2020-12-23 16:44:13,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:13,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 16:44:13,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526217931] [2020-12-23 16:44:13,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 16:44:13,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:13,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 16:44:13,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-23 16:44:13,984 INFO L87 Difference]: Start difference. First operand 92 states and 104 transitions. Second operand 8 states. [2020-12-23 16:44:14,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:14,314 INFO L93 Difference]: Finished difference Result 131 states and 145 transitions. [2020-12-23 16:44:14,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 16:44:14,314 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-12-23 16:44:14,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:14,315 INFO L225 Difference]: With dead ends: 131 [2020-12-23 16:44:14,316 INFO L226 Difference]: Without dead ends: 131 [2020-12-23 16:44:14,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-12-23 16:44:14,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-12-23 16:44:14,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 109. [2020-12-23 16:44:14,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-12-23 16:44:14,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 135 transitions. [2020-12-23 16:44:14,319 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 135 transitions. Word has length 17 [2020-12-23 16:44:14,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:14,320 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 135 transitions. [2020-12-23 16:44:14,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 16:44:14,320 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 135 transitions. [2020-12-23 16:44:14,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-23 16:44:14,321 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:14,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:14,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 16:44:14,321 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:14,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:14,322 INFO L82 PathProgramCache]: Analyzing trace with hash 790772533, now seen corresponding path program 1 times [2020-12-23 16:44:14,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:14,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492910131] [2020-12-23 16:44:14,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:14,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:14,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492910131] [2020-12-23 16:44:14,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:14,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 16:44:14,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711810493] [2020-12-23 16:44:14,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 16:44:14,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:14,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 16:44:14,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-23 16:44:14,447 INFO L87 Difference]: Start difference. First operand 109 states and 135 transitions. Second operand 8 states. [2020-12-23 16:44:14,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:14,838 INFO L93 Difference]: Finished difference Result 148 states and 162 transitions. [2020-12-23 16:44:14,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 16:44:14,842 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-12-23 16:44:14,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:14,844 INFO L225 Difference]: With dead ends: 148 [2020-12-23 16:44:14,844 INFO L226 Difference]: Without dead ends: 148 [2020-12-23 16:44:14,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-12-23 16:44:14,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-12-23 16:44:14,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 114. [2020-12-23 16:44:14,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-12-23 16:44:14,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2020-12-23 16:44:14,848 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 17 [2020-12-23 16:44:14,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:14,848 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2020-12-23 16:44:14,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 16:44:14,849 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2020-12-23 16:44:14,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-23 16:44:14,849 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:14,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:14,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 16:44:14,850 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:14,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:14,850 INFO L82 PathProgramCache]: Analyzing trace with hash 9020823, now seen corresponding path program 1 times [2020-12-23 16:44:14,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:14,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258261858] [2020-12-23 16:44:14,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:15,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:15,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258261858] [2020-12-23 16:44:15,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:15,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 16:44:15,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402895523] [2020-12-23 16:44:15,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 16:44:15,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:15,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 16:44:15,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-23 16:44:15,005 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand 8 states. [2020-12-23 16:44:15,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:15,301 INFO L93 Difference]: Finished difference Result 144 states and 158 transitions. [2020-12-23 16:44:15,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 16:44:15,302 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2020-12-23 16:44:15,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:15,303 INFO L225 Difference]: With dead ends: 144 [2020-12-23 16:44:15,303 INFO L226 Difference]: Without dead ends: 144 [2020-12-23 16:44:15,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-12-23 16:44:15,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-23 16:44:15,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 115. [2020-12-23 16:44:15,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-23 16:44:15,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 141 transitions. [2020-12-23 16:44:15,307 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 141 transitions. Word has length 20 [2020-12-23 16:44:15,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:15,308 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 141 transitions. [2020-12-23 16:44:15,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 16:44:15,308 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 141 transitions. [2020-12-23 16:44:15,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-23 16:44:15,308 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:15,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:15,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 16:44:15,309 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:15,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:15,310 INFO L82 PathProgramCache]: Analyzing trace with hash 452720611, now seen corresponding path program 1 times [2020-12-23 16:44:15,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:15,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48423968] [2020-12-23 16:44:15,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:15,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:15,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48423968] [2020-12-23 16:44:15,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:15,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-23 16:44:15,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888818860] [2020-12-23 16:44:15,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 16:44:15,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:15,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 16:44:15,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-12-23 16:44:15,513 INFO L87 Difference]: Start difference. First operand 115 states and 141 transitions. Second operand 12 states. [2020-12-23 16:44:16,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:16,083 INFO L93 Difference]: Finished difference Result 138 states and 148 transitions. [2020-12-23 16:44:16,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 16:44:16,084 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 20 [2020-12-23 16:44:16,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:16,085 INFO L225 Difference]: With dead ends: 138 [2020-12-23 16:44:16,085 INFO L226 Difference]: Without dead ends: 138 [2020-12-23 16:44:16,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2020-12-23 16:44:16,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-12-23 16:44:16,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 115. [2020-12-23 16:44:16,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-23 16:44:16,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 140 transitions. [2020-12-23 16:44:16,091 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 140 transitions. Word has length 20 [2020-12-23 16:44:16,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:16,091 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 140 transitions. [2020-12-23 16:44:16,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 16:44:16,091 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 140 transitions. [2020-12-23 16:44:16,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-23 16:44:16,092 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:16,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:16,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 16:44:16,093 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:16,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:16,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1760332104, now seen corresponding path program 1 times [2020-12-23 16:44:16,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:16,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64375608] [2020-12-23 16:44:16,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:16,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:16,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64375608] [2020-12-23 16:44:16,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:16,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:44:16,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770977066] [2020-12-23 16:44:16,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:44:16,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:16,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:44:16,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:44:16,131 INFO L87 Difference]: Start difference. First operand 115 states and 140 transitions. Second operand 3 states. [2020-12-23 16:44:16,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:16,145 INFO L93 Difference]: Finished difference Result 181 states and 210 transitions. [2020-12-23 16:44:16,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:44:16,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-12-23 16:44:16,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:16,148 INFO L225 Difference]: With dead ends: 181 [2020-12-23 16:44:16,148 INFO L226 Difference]: Without dead ends: 181 [2020-12-23 16:44:16,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:44:16,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-12-23 16:44:16,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 127. [2020-12-23 16:44:16,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-12-23 16:44:16,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 154 transitions. [2020-12-23 16:44:16,156 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 154 transitions. Word has length 20 [2020-12-23 16:44:16,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:16,156 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 154 transitions. [2020-12-23 16:44:16,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:44:16,156 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 154 transitions. [2020-12-23 16:44:16,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 16:44:16,158 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:16,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:16,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 16:44:16,159 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:16,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:16,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1149064871, now seen corresponding path program 1 times [2020-12-23 16:44:16,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:16,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897342651] [2020-12-23 16:44:16,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:16,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:16,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897342651] [2020-12-23 16:44:16,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:16,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:44:16,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867910867] [2020-12-23 16:44:16,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 16:44:16,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:16,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 16:44:16,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:44:16,218 INFO L87 Difference]: Start difference. First operand 127 states and 154 transitions. Second operand 5 states. [2020-12-23 16:44:16,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:16,350 INFO L93 Difference]: Finished difference Result 128 states and 155 transitions. [2020-12-23 16:44:16,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 16:44:16,352 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-12-23 16:44:16,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:16,353 INFO L225 Difference]: With dead ends: 128 [2020-12-23 16:44:16,353 INFO L226 Difference]: Without dead ends: 128 [2020-12-23 16:44:16,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 16:44:16,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-12-23 16:44:16,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2020-12-23 16:44:16,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-12-23 16:44:16,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 151 transitions. [2020-12-23 16:44:16,358 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 151 transitions. Word has length 21 [2020-12-23 16:44:16,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:16,358 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 151 transitions. [2020-12-23 16:44:16,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 16:44:16,358 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 151 transitions. [2020-12-23 16:44:16,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 16:44:16,359 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:16,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:16,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 16:44:16,359 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:16,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:16,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1149064872, now seen corresponding path program 1 times [2020-12-23 16:44:16,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:16,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577805913] [2020-12-23 16:44:16,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:16,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:16,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577805913] [2020-12-23 16:44:16,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:16,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 16:44:16,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296923759] [2020-12-23 16:44:16,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 16:44:16,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:16,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 16:44:16,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-12-23 16:44:16,531 INFO L87 Difference]: Start difference. First operand 126 states and 151 transitions. Second operand 9 states. [2020-12-23 16:44:16,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:16,945 INFO L93 Difference]: Finished difference Result 157 states and 169 transitions. [2020-12-23 16:44:16,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 16:44:16,946 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-23 16:44:16,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:16,947 INFO L225 Difference]: With dead ends: 157 [2020-12-23 16:44:16,947 INFO L226 Difference]: Without dead ends: 157 [2020-12-23 16:44:16,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-12-23 16:44:16,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-12-23 16:44:16,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 126. [2020-12-23 16:44:16,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-12-23 16:44:16,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 150 transitions. [2020-12-23 16:44:16,952 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 150 transitions. Word has length 21 [2020-12-23 16:44:16,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:16,952 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 150 transitions. [2020-12-23 16:44:16,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 16:44:16,952 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 150 transitions. [2020-12-23 16:44:16,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 16:44:16,953 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:16,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:16,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 16:44:16,954 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:16,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:16,954 INFO L82 PathProgramCache]: Analyzing trace with hash 79083354, now seen corresponding path program 1 times [2020-12-23 16:44:16,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:16,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706635230] [2020-12-23 16:44:16,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:17,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:17,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706635230] [2020-12-23 16:44:17,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:17,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 16:44:17,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085206422] [2020-12-23 16:44:17,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 16:44:17,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:17,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 16:44:17,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-23 16:44:17,121 INFO L87 Difference]: Start difference. First operand 126 states and 150 transitions. Second operand 9 states. [2020-12-23 16:44:17,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:17,496 INFO L93 Difference]: Finished difference Result 144 states and 155 transitions. [2020-12-23 16:44:17,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 16:44:17,497 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-12-23 16:44:17,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:17,498 INFO L225 Difference]: With dead ends: 144 [2020-12-23 16:44:17,499 INFO L226 Difference]: Without dead ends: 144 [2020-12-23 16:44:17,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-12-23 16:44:17,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-23 16:44:17,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 126. [2020-12-23 16:44:17,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-12-23 16:44:17,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 149 transitions. [2020-12-23 16:44:17,503 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 149 transitions. Word has length 22 [2020-12-23 16:44:17,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:17,504 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 149 transitions. [2020-12-23 16:44:17,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 16:44:17,504 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 149 transitions. [2020-12-23 16:44:17,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-23 16:44:17,504 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:17,505 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:17,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 16:44:17,505 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:17,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:17,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1839091055, now seen corresponding path program 1 times [2020-12-23 16:44:17,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:17,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138506569] [2020-12-23 16:44:17,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:17,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:17,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138506569] [2020-12-23 16:44:17,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613972188] [2020-12-23 16:44:17,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:44:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:17,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-23 16:44:17,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:44:17,919 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-23 16:44:17,920 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 16:44:17,923 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 16:44:17,924 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 16:44:17,924 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 16:44:17,961 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 16:44:17,962 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-23 16:44:17,974 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 16:44:17,980 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 16:44:17,990 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 16:44:17,991 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 16:44:17,992 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:15 [2020-12-23 16:44:18,034 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 16:44:18,036 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 16:44:18,046 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 16:44:18,048 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 16:44:18,049 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:23 [2020-12-23 16:44:18,158 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 16:44:18,159 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 50 [2020-12-23 16:44:18,162 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 16:44:18,171 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 16:44:18,172 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 16:44:18,173 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:23 [2020-12-23 16:44:18,225 INFO L348 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2020-12-23 16:44:18,226 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 21 [2020-12-23 16:44:18,229 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 16:44:18,237 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 16:44:18,238 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 16:44:18,238 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:23 [2020-12-23 16:44:18,309 INFO L348 Elim1Store]: treesize reduction 38, result has 56.3 percent of original size [2020-12-23 16:44:18,310 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 78 [2020-12-23 16:44:18,319 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-23 16:44:18,320 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 16:44:18,322 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 16:44:18,328 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 16:44:18,330 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 16:44:18,330 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:59, output treesize:28 [2020-12-23 16:44:18,393 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 16:44:18,393 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 30 [2020-12-23 16:44:18,396 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 16:44:18,401 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 16:44:18,404 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 16:44:18,405 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:35, output treesize:4 [2020-12-23 16:44:18,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:18,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 16:44:18,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2020-12-23 16:44:18,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358603666] [2020-12-23 16:44:18,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-23 16:44:18,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:18,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-23 16:44:18,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-12-23 16:44:18,416 INFO L87 Difference]: Start difference. First operand 126 states and 149 transitions. Second operand 18 states. [2020-12-23 16:44:19,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:19,493 INFO L93 Difference]: Finished difference Result 230 states and 261 transitions. [2020-12-23 16:44:19,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 16:44:19,493 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 23 [2020-12-23 16:44:19,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:19,495 INFO L225 Difference]: With dead ends: 230 [2020-12-23 16:44:19,495 INFO L226 Difference]: Without dead ends: 230 [2020-12-23 16:44:19,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=157, Invalid=655, Unknown=0, NotChecked=0, Total=812 [2020-12-23 16:44:19,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-12-23 16:44:19,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 147. [2020-12-23 16:44:19,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-12-23 16:44:19,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 173 transitions. [2020-12-23 16:44:19,501 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 173 transitions. Word has length 23 [2020-12-23 16:44:19,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:19,502 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 173 transitions. [2020-12-23 16:44:19,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-23 16:44:19,502 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 173 transitions. [2020-12-23 16:44:19,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-23 16:44:19,502 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:19,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:19,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-12-23 16:44:19,717 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:19,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:19,718 INFO L82 PathProgramCache]: Analyzing trace with hash 902322333, now seen corresponding path program 1 times [2020-12-23 16:44:19,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:19,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633957011] [2020-12-23 16:44:19,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 16:44:19,735 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 16:44:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 16:44:19,759 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 16:44:19,798 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 16:44:19,798 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 16:44:19,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-23 16:44:19,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 04:44:19 BoogieIcfgContainer [2020-12-23 16:44:19,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 16:44:19,864 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 16:44:19,864 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 16:44:19,865 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 16:44:19,866 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:44:08" (3/4) ... [2020-12-23 16:44:19,869 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 16:44:19,947 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/forester-heap/sll-circular-2.i-witness.graphml [2020-12-23 16:44:19,947 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 16:44:19,948 INFO L168 Benchmark]: Toolchain (without parser) took 13166.76 ms. Allocated memory was 154.1 MB in the beginning and 270.5 MB in the end (delta: 116.4 MB). Free memory was 128.7 MB in the beginning and 149.9 MB in the end (delta: -21.2 MB). Peak memory consumption was 96.6 MB. Max. memory is 8.0 GB. [2020-12-23 16:44:19,948 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 154.1 MB. Free memory is still 128.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 16:44:19,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.19 ms. Allocated memory is still 154.1 MB. Free memory was 128.5 MB in the beginning and 106.1 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-12-23 16:44:19,952 INFO L168 Benchmark]: Boogie Procedure Inliner took 119.67 ms. Allocated memory is still 154.1 MB. Free memory was 106.1 MB in the beginning and 137.6 MB in the end (delta: -31.5 MB). Peak memory consumption was 4.8 MB. Max. memory is 8.0 GB. [2020-12-23 16:44:19,952 INFO L168 Benchmark]: Boogie Preprocessor took 70.87 ms. Allocated memory is still 154.1 MB. Free memory was 137.6 MB in the beginning and 135.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 16:44:19,953 INFO L168 Benchmark]: RCFGBuilder took 765.20 ms. Allocated memory is still 154.1 MB. Free memory was 135.7 MB in the beginning and 103.2 MB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. [2020-12-23 16:44:19,956 INFO L168 Benchmark]: TraceAbstraction took 11518.46 ms. Allocated memory was 154.1 MB in the beginning and 270.5 MB in the end (delta: 116.4 MB). Free memory was 103.2 MB in the beginning and 152.5 MB in the end (delta: -49.3 MB). Peak memory consumption was 67.6 MB. Max. memory is 8.0 GB. [2020-12-23 16:44:19,956 INFO L168 Benchmark]: Witness Printer took 82.55 ms. Allocated memory is still 270.5 MB. Free memory was 152.5 MB in the beginning and 149.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 16:44:19,959 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 154.1 MB. Free memory is still 128.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 599.19 ms. Allocated memory is still 154.1 MB. Free memory was 128.5 MB in the beginning and 106.1 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 119.67 ms. Allocated memory is still 154.1 MB. Free memory was 106.1 MB in the beginning and 137.6 MB in the end (delta: -31.5 MB). Peak memory consumption was 4.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 70.87 ms. Allocated memory is still 154.1 MB. Free memory was 137.6 MB in the beginning and 135.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 765.20 ms. Allocated memory is still 154.1 MB. Free memory was 135.7 MB in the beginning and 103.2 MB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 11518.46 ms. Allocated memory was 154.1 MB in the beginning and 270.5 MB in the end (delta: 116.4 MB). Free memory was 103.2 MB in the beginning and 152.5 MB in the end (delta: -49.3 MB). Peak memory consumption was 67.6 MB. Max. memory is 8.0 GB. * Witness Printer took 82.55 ms. Allocated memory is still 270.5 MB. Free memory was 152.5 MB in the beginning and 149.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1032]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L996] SLL* head = malloc(sizeof(SLL)); [L997] head->next = head [L998] head->data = 0 [L1000] SLL* x = head; [L1001] int state = 1; [L1004] COND FALSE !(__VERIFIER_nondet_int()) [L1025] x->data = state [L1027] EXPR head->next [L1027] x = head->next [L1028] COND FALSE !(!(((void*)0) != x)) [L1030] EXPR x->data [L1030] COND TRUE x->data != 0 [L1032] EXPR x->next [L1032] EXPR x->next->data [L1032] EXPR x->next->data != 0 && x->data > x->next->data [L1032] EXPR x->data [L1032] EXPR x->next [L1032] EXPR x->next->data [L1032] EXPR x->next->data != 0 && x->data > x->next->data [L1032] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1032] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 101 locations, 46 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.3s, OverallIterations: 22, TraceHistogramMax: 2, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1363 SDtfs, 3560 SDslu, 4058 SDs, 0 SdLazy, 4431 SolverSat, 311 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 267 GetRequests, 60 SyntacticMatches, 5 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=21, 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, 21 MinimizatonAttempts, 792 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 358 NumberOfCodeBlocks, 358 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 312 ConstructedInterpolants, 1 QuantifiedInterpolants, 58375 SizeOfPredicates, 10 NumberOfNonLiveVariables, 136 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 22 InterpolantComputations, 20 PerfectInterpolantSequences, 0/4 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...