/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 17:31:57,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 17:31:57,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 17:31:57,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 17:31:57,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 17:31:57,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 17:31:57,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 17:31:57,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 17:31:57,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 17:31:57,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 17:31:57,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 17:31:57,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 17:31:57,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 17:31:57,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 17:31:57,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 17:31:57,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 17:31:57,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 17:31:57,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 17:31:57,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 17:31:57,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 17:31:57,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 17:31:57,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 17:31:57,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 17:31:57,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 17:31:57,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 17:31:57,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 17:31:57,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 17:31:57,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 17:31:57,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 17:31:57,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 17:31:57,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 17:31:57,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 17:31:57,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 17:31:57,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 17:31:57,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 17:31:57,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 17:31:57,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 17:31:57,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 17:31:57,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 17:31:57,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 17:31:57,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 17:31:57,862 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-23 17:31:57,934 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 17:31:57,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 17:31:57,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 17:31:57,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 17:31:57,941 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 17:31:57,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 17:31:57,941 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-23 17:31:57,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 17:31:57,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 17:31:57,942 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-23 17:31:57,944 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-23 17:31:57,944 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-23 17:31:57,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 17:31:57,945 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-23 17:31:57,945 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 17:31:57,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 17:31:57,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 17:31:57,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 17:31:57,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 17:31:57,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 17:31:57,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 17:31:57,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 17:31:57,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 17:31:57,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 17:31:57,947 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 17:31:58,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 17:31:58,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 17:31:58,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 17:31:58,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 17:31:58,435 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 17:31:58,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2020-12-23 17:31:58,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/16c398d82/3d62e08df4cf4cc78cdddb05f4ac4f11/FLAG4e4efd1d6 [2020-12-23 17:31:59,298 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 17:31:59,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2020-12-23 17:31:59,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/16c398d82/3d62e08df4cf4cc78cdddb05f4ac4f11/FLAG4e4efd1d6 [2020-12-23 17:31:59,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/16c398d82/3d62e08df4cf4cc78cdddb05f4ac4f11 [2020-12-23 17:31:59,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 17:31:59,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 17:31:59,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 17:31:59,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 17:31:59,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 17:31:59,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:31:59" (1/1) ... [2020-12-23 17:31:59,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b767fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:31:59, skipping insertion in model container [2020-12-23 17:31:59,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:31:59" (1/1) ... [2020-12-23 17:31:59,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 17:31:59,715 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_head~0,],base],StructAccessExpression[IdentifierExpression[~new_head~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[~new_head~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~new_head~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~new_head~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~new_head~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~head~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~head~0,] left hand side expression in assignment: lhs: VariableLHS[~head~1,] left hand side expression in assignment: lhs: VariableLHS[~head~1,] [2020-12-23 17:32:00,133 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i[23974,23987] [2020-12-23 17:32:00,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 17:32:00,153 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_head~0,],base],StructAccessExpression[IdentifierExpression[~new_head~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[~new_head~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~new_head~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~new_head~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~new_head~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~head~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~head~0,] left hand side expression in assignment: lhs: VariableLHS[~head~1,] left hand side expression in assignment: lhs: VariableLHS[~head~1,] [2020-12-23 17:32:00,258 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i[23974,23987] [2020-12-23 17:32:00,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 17:32:00,358 INFO L208 MainTranslator]: Completed translation [2020-12-23 17:32:00,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:32:00 WrapperNode [2020-12-23 17:32:00,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 17:32:00,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 17:32:00,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 17:32:00,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 17:32:00,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:32:00" (1/1) ... [2020-12-23 17:32:00,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:32:00" (1/1) ... [2020-12-23 17:32:00,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 17:32:00,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 17:32:00,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 17:32:00,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 17:32:00,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:32:00" (1/1) ... [2020-12-23 17:32:00,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:32:00" (1/1) ... [2020-12-23 17:32:00,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:32:00" (1/1) ... [2020-12-23 17:32:00,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:32:00" (1/1) ... [2020-12-23 17:32:00,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:32:00" (1/1) ... [2020-12-23 17:32:00,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:32:00" (1/1) ... [2020-12-23 17:32:00,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:32:00" (1/1) ... [2020-12-23 17:32:00,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 17:32:00,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 17:32:00,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 17:32:00,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 17:32:00,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:32:00" (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 17:32:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 17:32:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 17:32:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 17:32:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 17:32:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 17:32:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 17:32:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 17:32:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 17:32:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 17:32:00,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 17:32:01,507 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 17:32:01,508 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-23 17:32:01,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:32:01 BoogieIcfgContainer [2020-12-23 17:32:01,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 17:32:01,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 17:32:01,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 17:32:01,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 17:32:01,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 05:31:59" (1/3) ... [2020-12-23 17:32:01,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cf51fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:32:01, skipping insertion in model container [2020-12-23 17:32:01,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:32:00" (2/3) ... [2020-12-23 17:32:01,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cf51fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:32:01, skipping insertion in model container [2020-12-23 17:32:01,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:32:01" (3/3) ... [2020-12-23 17:32:01,524 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_nullified-2.i [2020-12-23 17:32:01,531 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 17:32:01,538 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 35 error locations. [2020-12-23 17:32:01,557 INFO L253 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2020-12-23 17:32:01,581 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 17:32:01,582 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-23 17:32:01,582 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 17:32:01,582 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 17:32:01,582 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 17:32:01,582 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 17:32:01,582 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 17:32:01,583 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 17:32:01,603 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-12-23 17:32:01,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-23 17:32:01,610 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:01,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-23 17:32:01,612 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:01,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:01,619 INFO L82 PathProgramCache]: Analyzing trace with hash 28699851, now seen corresponding path program 1 times [2020-12-23 17:32:01,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:01,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592910895] [2020-12-23 17:32:01,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:01,822 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 17:32:01,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592910895] [2020-12-23 17:32:01,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:32:01,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:32:01,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712352202] [2020-12-23 17:32:01,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:32:01,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:01,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:32:01,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:32:01,853 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 3 states. [2020-12-23 17:32:02,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:02,100 INFO L93 Difference]: Finished difference Result 141 states and 157 transitions. [2020-12-23 17:32:02,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:32:02,103 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-23 17:32:02,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:02,123 INFO L225 Difference]: With dead ends: 141 [2020-12-23 17:32:02,124 INFO L226 Difference]: Without dead ends: 136 [2020-12-23 17:32:02,125 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 17:32:02,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-12-23 17:32:02,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 77. [2020-12-23 17:32:02,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-12-23 17:32:02,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2020-12-23 17:32:02,180 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 5 [2020-12-23 17:32:02,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:02,181 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2020-12-23 17:32:02,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:32:02,181 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2020-12-23 17:32:02,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-23 17:32:02,182 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:02,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-23 17:32:02,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 17:32:02,183 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:02,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:02,185 INFO L82 PathProgramCache]: Analyzing trace with hash 28699852, now seen corresponding path program 1 times [2020-12-23 17:32:02,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:02,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948475765] [2020-12-23 17:32:02,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:02,299 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 17:32:02,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948475765] [2020-12-23 17:32:02,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:32:02,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:32:02,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107138442] [2020-12-23 17:32:02,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:32:02,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:02,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:32:02,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:32:02,308 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand 3 states. [2020-12-23 17:32:02,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:02,503 INFO L93 Difference]: Finished difference Result 131 states and 146 transitions. [2020-12-23 17:32:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:32:02,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-23 17:32:02,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:02,505 INFO L225 Difference]: With dead ends: 131 [2020-12-23 17:32:02,506 INFO L226 Difference]: Without dead ends: 131 [2020-12-23 17:32:02,507 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 17:32:02,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-12-23 17:32:02,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 72. [2020-12-23 17:32:02,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-23 17:32:02,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2020-12-23 17:32:02,517 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 5 [2020-12-23 17:32:02,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:02,517 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2020-12-23 17:32:02,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:32:02,518 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2020-12-23 17:32:02,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 17:32:02,518 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:02,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 17:32:02,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 17:32:02,520 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:02,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:02,524 INFO L82 PathProgramCache]: Analyzing trace with hash 889665583, now seen corresponding path program 1 times [2020-12-23 17:32:02,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:02,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686967652] [2020-12-23 17:32:02,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:02,593 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 17:32:02,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686967652] [2020-12-23 17:32:02,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:32:02,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 17:32:02,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101223644] [2020-12-23 17:32:02,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:32:02,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:02,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:32:02,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:32:02,597 INFO L87 Difference]: Start difference. First operand 72 states and 80 transitions. Second operand 3 states. [2020-12-23 17:32:02,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:02,610 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2020-12-23 17:32:02,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:32:02,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-23 17:32:02,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:02,613 INFO L225 Difference]: With dead ends: 84 [2020-12-23 17:32:02,613 INFO L226 Difference]: Without dead ends: 84 [2020-12-23 17:32:02,613 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 17:32:02,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-23 17:32:02,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 73. [2020-12-23 17:32:02,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-12-23 17:32:02,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 81 transitions. [2020-12-23 17:32:02,622 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 81 transitions. Word has length 6 [2020-12-23 17:32:02,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:02,623 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 81 transitions. [2020-12-23 17:32:02,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:32:02,623 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 81 transitions. [2020-12-23 17:32:02,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 17:32:02,624 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:02,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:02,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 17:32:02,624 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:02,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:02,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1228392914, now seen corresponding path program 1 times [2020-12-23 17:32:02,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:02,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781295906] [2020-12-23 17:32:02,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:02,770 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 17:32:02,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781295906] [2020-12-23 17:32:02,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:32:02,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 17:32:02,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724867282] [2020-12-23 17:32:02,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:32:02,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:02,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:32:02,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:32:02,773 INFO L87 Difference]: Start difference. First operand 73 states and 81 transitions. Second operand 3 states. [2020-12-23 17:32:02,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:02,813 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2020-12-23 17:32:02,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:32:02,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-23 17:32:02,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:02,815 INFO L225 Difference]: With dead ends: 81 [2020-12-23 17:32:02,816 INFO L226 Difference]: Without dead ends: 81 [2020-12-23 17:32:02,817 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 17:32:02,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-12-23 17:32:02,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2020-12-23 17:32:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-23 17:32:02,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2020-12-23 17:32:02,831 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 11 [2020-12-23 17:32:02,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:02,834 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2020-12-23 17:32:02,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:32:02,834 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2020-12-23 17:32:02,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 17:32:02,835 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:02,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:02,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 17:32:02,835 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:02,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:02,836 INFO L82 PathProgramCache]: Analyzing trace with hash -91353250, now seen corresponding path program 1 times [2020-12-23 17:32:02,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:02,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504965363] [2020-12-23 17:32:02,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:02,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:32:02,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504965363] [2020-12-23 17:32:02,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603137675] [2020-12-23 17:32:02,945 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 17:32:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:03,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 17:32:03,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:32:03,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:32:03,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:32:03,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-23 17:32:03,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098766773] [2020-12-23 17:32:03,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:32:03,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:03,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:32:03,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:32:03,131 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 5 states. [2020-12-23 17:32:03,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:03,162 INFO L93 Difference]: Finished difference Result 93 states and 102 transitions. [2020-12-23 17:32:03,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:32:03,163 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-23 17:32:03,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:03,164 INFO L225 Difference]: With dead ends: 93 [2020-12-23 17:32:03,164 INFO L226 Difference]: Without dead ends: 93 [2020-12-23 17:32:03,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:32:03,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-12-23 17:32:03,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 82. [2020-12-23 17:32:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-23 17:32:03,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2020-12-23 17:32:03,172 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 15 [2020-12-23 17:32:03,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:03,172 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2020-12-23 17:32:03,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:32:03,173 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2020-12-23 17:32:03,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-23 17:32:03,173 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:03,174 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:03,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:03,389 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:03,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:03,391 INFO L82 PathProgramCache]: Analyzing trace with hash 965941251, now seen corresponding path program 1 times [2020-12-23 17:32:03,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:03,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450613415] [2020-12-23 17:32:03,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:03,493 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:32:03,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450613415] [2020-12-23 17:32:03,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404420781] [2020-12-23 17:32:03,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:03,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 17:32:03,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:32:03,637 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 17:32:03,638 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:03,642 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:03,642 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:03,643 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:32:03,690 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:03,691 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 28 [2020-12-23 17:32:03,695 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:03,740 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-23 17:32:03,742 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:32:03,743 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-12-23 17:32:03,765 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:32:03,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:32:03,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 4 [2020-12-23 17:32:03,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080121878] [2020-12-23 17:32:03,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:32:03,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:03,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:32:03,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:32:03,769 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 5 states. [2020-12-23 17:32:03,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:03,936 INFO L93 Difference]: Finished difference Result 113 states and 123 transitions. [2020-12-23 17:32:03,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:32:03,937 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-12-23 17:32:03,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:03,938 INFO L225 Difference]: With dead ends: 113 [2020-12-23 17:32:03,938 INFO L226 Difference]: Without dead ends: 113 [2020-12-23 17:32:03,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:32:03,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-12-23 17:32:03,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 81. [2020-12-23 17:32:03,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-12-23 17:32:03,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-12-23 17:32:03,947 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 20 [2020-12-23 17:32:03,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:03,948 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-12-23 17:32:03,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:32:03,948 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-12-23 17:32:03,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-23 17:32:03,949 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:03,949 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:04,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:04,164 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:04,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:04,166 INFO L82 PathProgramCache]: Analyzing trace with hash 965941252, now seen corresponding path program 1 times [2020-12-23 17:32:04,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:04,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866624357] [2020-12-23 17:32:04,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:04,350 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:32:04,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866624357] [2020-12-23 17:32:04,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812124041] [2020-12-23 17:32:04,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:04,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-23 17:32:04,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:32:04,476 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 17:32:04,477 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:04,483 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:04,484 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:04,484 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-23 17:32:04,553 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:04,554 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 28 [2020-12-23 17:32:04,559 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:04,580 INFO L625 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2020-12-23 17:32:04,582 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:32:04,582 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2020-12-23 17:32:04,624 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:32:04,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:32:04,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2020-12-23 17:32:04,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225277559] [2020-12-23 17:32:04,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 17:32:04,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:04,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 17:32:04,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:32:04,628 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 7 states. [2020-12-23 17:32:04,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:04,859 INFO L93 Difference]: Finished difference Result 112 states and 122 transitions. [2020-12-23 17:32:04,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:32:04,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-12-23 17:32:04,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:04,862 INFO L225 Difference]: With dead ends: 112 [2020-12-23 17:32:04,862 INFO L226 Difference]: Without dead ends: 112 [2020-12-23 17:32:04,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:32:04,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-12-23 17:32:04,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 80. [2020-12-23 17:32:04,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-23 17:32:04,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2020-12-23 17:32:04,870 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 20 [2020-12-23 17:32:04,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:04,870 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2020-12-23 17:32:04,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 17:32:04,871 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2020-12-23 17:32:04,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-23 17:32:04,872 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:04,872 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:05,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:05,087 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:05,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:05,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1824203505, now seen corresponding path program 2 times [2020-12-23 17:32:05,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:05,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511462649] [2020-12-23 17:32:05,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:05,187 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:32:05,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511462649] [2020-12-23 17:32:05,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025146816] [2020-12-23 17:32:05,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:05,295 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 17:32:05,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:32:05,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 17:32:05,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:32:05,383 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:32:05,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:32:05,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-12-23 17:32:05,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370810343] [2020-12-23 17:32:05,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 17:32:05,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:05,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 17:32:05,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:32:05,386 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 8 states. [2020-12-23 17:32:05,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:05,532 INFO L93 Difference]: Finished difference Result 99 states and 106 transitions. [2020-12-23 17:32:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 17:32:05,533 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-12-23 17:32:05,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:05,534 INFO L225 Difference]: With dead ends: 99 [2020-12-23 17:32:05,534 INFO L226 Difference]: Without dead ends: 99 [2020-12-23 17:32:05,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-12-23 17:32:05,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-12-23 17:32:05,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2020-12-23 17:32:05,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-12-23 17:32:05,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2020-12-23 17:32:05,540 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 24 [2020-12-23 17:32:05,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:05,541 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2020-12-23 17:32:05,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 17:32:05,541 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2020-12-23 17:32:05,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-23 17:32:05,542 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:05,542 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:05,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:05,756 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:05,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:05,758 INFO L82 PathProgramCache]: Analyzing trace with hash -675464308, now seen corresponding path program 1 times [2020-12-23 17:32:05,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:05,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820211982] [2020-12-23 17:32:05,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:05,841 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-23 17:32:05,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820211982] [2020-12-23 17:32:05,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:32:05,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 17:32:05,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244297139] [2020-12-23 17:32:05,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 17:32:05,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:05,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 17:32:05,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:32:05,844 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand 6 states. [2020-12-23 17:32:06,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:06,061 INFO L93 Difference]: Finished difference Result 111 states and 120 transitions. [2020-12-23 17:32:06,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 17:32:06,062 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-12-23 17:32:06,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:06,063 INFO L225 Difference]: With dead ends: 111 [2020-12-23 17:32:06,063 INFO L226 Difference]: Without dead ends: 111 [2020-12-23 17:32:06,063 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:32:06,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-12-23 17:32:06,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 85. [2020-12-23 17:32:06,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-12-23 17:32:06,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2020-12-23 17:32:06,068 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 35 [2020-12-23 17:32:06,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:06,069 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2020-12-23 17:32:06,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 17:32:06,069 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2020-12-23 17:32:06,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-23 17:32:06,070 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:06,070 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:06,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 17:32:06,071 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:06,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:06,071 INFO L82 PathProgramCache]: Analyzing trace with hash -675464307, now seen corresponding path program 1 times [2020-12-23 17:32:06,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:06,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457284989] [2020-12-23 17:32:06,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:06,161 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:32:06,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457284989] [2020-12-23 17:32:06,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141039873] [2020-12-23 17:32:06,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:06,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 17:32:06,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:32:06,368 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:32:06,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:32:06,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-12-23 17:32:06,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379807654] [2020-12-23 17:32:06,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 17:32:06,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:06,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 17:32:06,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:32:06,371 INFO L87 Difference]: Start difference. First operand 85 states and 95 transitions. Second operand 7 states. [2020-12-23 17:32:06,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:06,397 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2020-12-23 17:32:06,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:32:06,398 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-12-23 17:32:06,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:06,399 INFO L225 Difference]: With dead ends: 104 [2020-12-23 17:32:06,399 INFO L226 Difference]: Without dead ends: 104 [2020-12-23 17:32:06,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:32:06,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-12-23 17:32:06,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 95. [2020-12-23 17:32:06,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-12-23 17:32:06,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 105 transitions. [2020-12-23 17:32:06,404 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 105 transitions. Word has length 35 [2020-12-23 17:32:06,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:06,405 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 105 transitions. [2020-12-23 17:32:06,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 17:32:06,405 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 105 transitions. [2020-12-23 17:32:06,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-23 17:32:06,406 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:06,406 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:06,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-23 17:32:06,621 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:06,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:06,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1118348420, now seen corresponding path program 2 times [2020-12-23 17:32:06,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:06,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724760059] [2020-12-23 17:32:06,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:06,763 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:32:06,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724760059] [2020-12-23 17:32:06,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810113017] [2020-12-23 17:32:06,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:06,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 17:32:06,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:32:06,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 17:32:06,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:32:06,978 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:32:06,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:32:06,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-23 17:32:06,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837493457] [2020-12-23 17:32:06,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 17:32:06,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:06,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 17:32:06,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:32:06,981 INFO L87 Difference]: Start difference. First operand 95 states and 105 transitions. Second operand 8 states. [2020-12-23 17:32:07,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:07,014 INFO L93 Difference]: Finished difference Result 105 states and 115 transitions. [2020-12-23 17:32:07,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 17:32:07,015 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-12-23 17:32:07,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:07,016 INFO L225 Difference]: With dead ends: 105 [2020-12-23 17:32:07,016 INFO L226 Difference]: Without dead ends: 105 [2020-12-23 17:32:07,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:32:07,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-12-23 17:32:07,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-12-23 17:32:07,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-12-23 17:32:07,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 115 transitions. [2020-12-23 17:32:07,020 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 115 transitions. Word has length 45 [2020-12-23 17:32:07,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:07,021 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 115 transitions. [2020-12-23 17:32:07,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 17:32:07,021 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 115 transitions. [2020-12-23 17:32:07,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-23 17:32:07,022 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:07,023 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:07,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:07,236 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:07,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:07,237 INFO L82 PathProgramCache]: Analyzing trace with hash -719682373, now seen corresponding path program 3 times [2020-12-23 17:32:07,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:07,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687414301] [2020-12-23 17:32:07,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:07,364 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-12-23 17:32:07,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687414301] [2020-12-23 17:32:07,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:32:07,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 17:32:07,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300512642] [2020-12-23 17:32:07,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 17:32:07,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:07,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 17:32:07,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:32:07,370 INFO L87 Difference]: Start difference. First operand 105 states and 115 transitions. Second operand 6 states. [2020-12-23 17:32:07,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:07,614 INFO L93 Difference]: Finished difference Result 140 states and 155 transitions. [2020-12-23 17:32:07,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:32:07,614 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-12-23 17:32:07,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:07,617 INFO L225 Difference]: With dead ends: 140 [2020-12-23 17:32:07,617 INFO L226 Difference]: Without dead ends: 140 [2020-12-23 17:32:07,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:32:07,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-12-23 17:32:07,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 131. [2020-12-23 17:32:07,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-12-23 17:32:07,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 148 transitions. [2020-12-23 17:32:07,625 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 148 transitions. Word has length 55 [2020-12-23 17:32:07,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:07,628 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 148 transitions. [2020-12-23 17:32:07,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 17:32:07,628 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 148 transitions. [2020-12-23 17:32:07,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-23 17:32:07,631 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:07,631 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:07,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 17:32:07,632 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:07,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:07,632 INFO L82 PathProgramCache]: Analyzing trace with hash 109308747, now seen corresponding path program 1 times [2020-12-23 17:32:07,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:07,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567297131] [2020-12-23 17:32:07,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:07,796 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-12-23 17:32:07,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567297131] [2020-12-23 17:32:07,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:32:07,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 17:32:07,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243068942] [2020-12-23 17:32:07,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 17:32:07,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:07,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 17:32:07,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:32:07,799 INFO L87 Difference]: Start difference. First operand 131 states and 148 transitions. Second operand 7 states. [2020-12-23 17:32:07,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:07,975 INFO L93 Difference]: Finished difference Result 137 states and 152 transitions. [2020-12-23 17:32:07,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:32:07,975 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2020-12-23 17:32:07,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:07,976 INFO L225 Difference]: With dead ends: 137 [2020-12-23 17:32:07,977 INFO L226 Difference]: Without dead ends: 137 [2020-12-23 17:32:07,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:32:07,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-12-23 17:32:07,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 131. [2020-12-23 17:32:07,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-12-23 17:32:07,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 147 transitions. [2020-12-23 17:32:07,984 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 147 transitions. Word has length 59 [2020-12-23 17:32:07,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:07,987 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 147 transitions. [2020-12-23 17:32:07,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 17:32:07,987 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 147 transitions. [2020-12-23 17:32:07,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-23 17:32:07,993 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:07,993 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:07,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 17:32:07,993 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:07,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:07,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1929263777, now seen corresponding path program 1 times [2020-12-23 17:32:07,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:07,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712388284] [2020-12-23 17:32:07,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:08,275 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 56 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-12-23 17:32:08,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712388284] [2020-12-23 17:32:08,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716444205] [2020-12-23 17:32:08,276 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:08,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-23 17:32:08,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:32:08,476 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 17:32:08,477 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,481 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:08,482 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,482 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:32:08,511 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:08,512 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 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 17:32:08,516 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:32:08,521 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,526 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:08,527 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,527 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2020-12-23 17:32:08,553 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 17:32:08,554 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,562 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:08,563 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,563 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2020-12-23 17:32:08,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,600 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-12-23 17:32:08,603 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,615 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:08,616 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,617 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2020-12-23 17:32:08,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,664 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2020-12-23 17:32:08,670 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,683 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:08,685 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,686 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2020-12-23 17:32:08,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,750 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2020-12-23 17:32:08,755 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,767 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:08,768 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,769 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:36 [2020-12-23 17:32:08,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,787 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2020-12-23 17:32:08,790 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,802 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:08,803 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,803 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:36 [2020-12-23 17:32:08,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:08,828 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2020-12-23 17:32:08,830 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,843 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:08,845 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:08,845 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:55, output treesize:32 [2020-12-23 17:32:09,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:09,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:09,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:09,010 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:09,010 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 13 [2020-12-23 17:32:09,013 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:09,019 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:09,021 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:09,022 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:39, output treesize:3 [2020-12-23 17:32:09,038 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 60 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-23 17:32:09,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:32:09,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 20 [2020-12-23 17:32:09,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531213983] [2020-12-23 17:32:09,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-23 17:32:09,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:09,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-23 17:32:09,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2020-12-23 17:32:09,041 INFO L87 Difference]: Start difference. First operand 131 states and 147 transitions. Second operand 20 states. [2020-12-23 17:32:10,066 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-23 17:32:10,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:10,598 INFO L93 Difference]: Finished difference Result 162 states and 176 transitions. [2020-12-23 17:32:10,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-23 17:32:10,599 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 63 [2020-12-23 17:32:10,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:10,600 INFO L225 Difference]: With dead ends: 162 [2020-12-23 17:32:10,601 INFO L226 Difference]: Without dead ends: 162 [2020-12-23 17:32:10,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 57 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2020-12-23 17:32:10,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-12-23 17:32:10,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 131. [2020-12-23 17:32:10,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-12-23 17:32:10,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 146 transitions. [2020-12-23 17:32:10,610 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 146 transitions. Word has length 63 [2020-12-23 17:32:10,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:10,610 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 146 transitions. [2020-12-23 17:32:10,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-23 17:32:10,611 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 146 transitions. [2020-12-23 17:32:10,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-23 17:32:10,614 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:10,614 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:10,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-23 17:32:10,829 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:10,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:10,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1264795644, now seen corresponding path program 1 times [2020-12-23 17:32:10,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:10,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367349215] [2020-12-23 17:32:10,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:11,211 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 50 proven. 32 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 17:32:11,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367349215] [2020-12-23 17:32:11,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244779892] [2020-12-23 17:32:11,212 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:11,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 32 conjunts are in the unsatisfiable core [2020-12-23 17:32:11,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:32:11,397 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 17:32:11,397 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,399 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:11,400 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,400 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:32:11,423 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:11,423 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 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 17:32:11,426 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:32:11,428 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,430 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:11,430 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,430 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2020-12-23 17:32:11,455 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-23 17:32:11,456 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,460 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:11,461 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,461 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2020-12-23 17:32:11,520 INFO L348 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2020-12-23 17:32:11,521 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:32:11,523 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,530 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:11,531 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,531 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2020-12-23 17:32:11,588 INFO L348 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2020-12-23 17:32:11,589 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 25 [2020-12-23 17:32:11,594 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,601 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:11,602 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,602 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:23 [2020-12-23 17:32:11,633 INFO L348 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2020-12-23 17:32:11,634 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 25 [2020-12-23 17:32:11,636 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,643 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:11,643 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,644 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:23 [2020-12-23 17:32:11,661 INFO L348 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2020-12-23 17:32:11,662 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 38 treesize of output 25 [2020-12-23 17:32:11,664 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,670 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:11,672 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,672 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:19 [2020-12-23 17:32:11,797 INFO L348 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2020-12-23 17:32:11,798 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 10 [2020-12-23 17:32:11,800 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,801 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:11,802 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:11,802 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:28, output treesize:3 [2020-12-23 17:32:11,820 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 60 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-23 17:32:11,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:32:11,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 21 [2020-12-23 17:32:11,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915781400] [2020-12-23 17:32:11,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-12-23 17:32:11,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:11,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-12-23 17:32:11,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2020-12-23 17:32:11,822 INFO L87 Difference]: Start difference. First operand 131 states and 146 transitions. Second operand 21 states. [2020-12-23 17:32:12,603 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-23 17:32:12,779 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-23 17:32:12,929 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-12-23 17:32:13,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:13,548 INFO L93 Difference]: Finished difference Result 162 states and 175 transitions. [2020-12-23 17:32:13,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-23 17:32:13,549 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 65 [2020-12-23 17:32:13,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:13,551 INFO L225 Difference]: With dead ends: 162 [2020-12-23 17:32:13,551 INFO L226 Difference]: Without dead ends: 162 [2020-12-23 17:32:13,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 61 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=279, Invalid=981, Unknown=0, NotChecked=0, Total=1260 [2020-12-23 17:32:13,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-12-23 17:32:13,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 131. [2020-12-23 17:32:13,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-12-23 17:32:13,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 145 transitions. [2020-12-23 17:32:13,556 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 145 transitions. Word has length 65 [2020-12-23 17:32:13,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:13,556 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 145 transitions. [2020-12-23 17:32:13,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-12-23 17:32:13,556 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 145 transitions. [2020-12-23 17:32:13,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-23 17:32:13,557 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:13,557 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:13,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-23 17:32:13,771 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:13,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:13,772 INFO L82 PathProgramCache]: Analyzing trace with hash -892543400, now seen corresponding path program 1 times [2020-12-23 17:32:13,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:13,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816997687] [2020-12-23 17:32:13,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:13,978 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 56 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-12-23 17:32:13,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816997687] [2020-12-23 17:32:13,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284241303] [2020-12-23 17:32:13,979 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:14,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 29 conjunts are in the unsatisfiable core [2020-12-23 17:32:14,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:32:14,211 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:14,212 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 17:32:14,215 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:32:14,216 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:32:14,218 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:14,224 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:14,225 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:14,226 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:12 [2020-12-23 17:32:14,285 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 13 treesize of output 9 [2020-12-23 17:32:14,286 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:14,295 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:14,296 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:14,296 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2020-12-23 17:32:14,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:14,338 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:32:14,340 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:14,351 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:14,352 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:14,353 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:33 [2020-12-23 17:32:14,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:14,436 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:14,436 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 110 [2020-12-23 17:32:14,442 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-23 17:32:14,443 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:32:14,445 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:14,456 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:14,459 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 17:32:14,459 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:61, output treesize:51 [2020-12-23 17:32:14,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:14,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:14,775 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:14,776 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 81 [2020-12-23 17:32:14,779 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:32:14,781 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 17:32:14,782 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 17:32:14,786 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 17:32:14,790 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-23 17:32:14,803 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:14,806 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:32:14,808 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 17:32:14,808 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:63, output treesize:16 [2020-12-23 17:32:14,911 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 60 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-23 17:32:14,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:32:14,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2020-12-23 17:32:14,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126590310] [2020-12-23 17:32:14,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-12-23 17:32:14,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:14,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-12-23 17:32:14,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2020-12-23 17:32:14,914 INFO L87 Difference]: Start difference. First operand 131 states and 145 transitions. Second operand 25 states. [2020-12-23 17:32:17,204 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-12-23 17:32:17,428 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-12-23 17:32:17,683 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2020-12-23 17:32:17,939 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-12-23 17:32:18,350 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-12-23 17:32:18,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:18,706 INFO L93 Difference]: Finished difference Result 149 states and 158 transitions. [2020-12-23 17:32:18,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-23 17:32:18,707 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 66 [2020-12-23 17:32:18,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:18,708 INFO L225 Difference]: With dead ends: 149 [2020-12-23 17:32:18,708 INFO L226 Difference]: Without dead ends: 145 [2020-12-23 17:32:18,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 56 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=346, Invalid=1460, Unknown=0, NotChecked=0, Total=1806 [2020-12-23 17:32:18,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-12-23 17:32:18,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 117. [2020-12-23 17:32:18,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-12-23 17:32:18,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 127 transitions. [2020-12-23 17:32:18,713 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 127 transitions. Word has length 66 [2020-12-23 17:32:18,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:18,714 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 127 transitions. [2020-12-23 17:32:18,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-12-23 17:32:18,714 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 127 transitions. [2020-12-23 17:32:18,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 17:32:18,714 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:18,715 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:18,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-23 17:32:18,929 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:18,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:18,929 INFO L82 PathProgramCache]: Analyzing trace with hash 8707913, now seen corresponding path program 1 times [2020-12-23 17:32:18,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:18,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799266695] [2020-12-23 17:32:18,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:19,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:19,257 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 50 proven. 32 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 17:32:19,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799266695] [2020-12-23 17:32:19,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389524586] [2020-12-23 17:32:19,258 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:19,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 28 conjunts are in the unsatisfiable core [2020-12-23 17:32:19,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:32:19,487 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:19,487 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 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 17:32:19,489 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:32:19,491 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:32:19,493 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:19,497 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:19,498 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:19,498 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2020-12-23 17:32:19,528 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-23 17:32:19,529 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:19,536 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:19,537 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:19,537 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:17 [2020-12-23 17:32:19,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:19,568 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-23 17:32:19,570 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:19,576 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:19,577 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:19,577 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:17 [2020-12-23 17:32:19,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:19,586 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-23 17:32:19,587 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:19,594 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:19,595 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:19,595 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:17 [2020-12-23 17:32:19,606 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-23 17:32:19,608 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:19,614 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:19,616 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:19,616 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:13 [2020-12-23 17:32:19,815 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-23 17:32:19,817 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:19,818 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:19,819 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 17:32:19,819 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2020-12-23 17:32:19,829 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 56 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-12-23 17:32:19,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:32:19,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-12-23 17:32:19,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069569072] [2020-12-23 17:32:19,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-12-23 17:32:19,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:19,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-12-23 17:32:19,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2020-12-23 17:32:19,832 INFO L87 Difference]: Start difference. First operand 117 states and 127 transitions. Second operand 21 states. [2020-12-23 17:32:20,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:20,590 INFO L93 Difference]: Finished difference Result 143 states and 152 transitions. [2020-12-23 17:32:20,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 17:32:20,591 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 67 [2020-12-23 17:32:20,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:20,592 INFO L225 Difference]: With dead ends: 143 [2020-12-23 17:32:20,593 INFO L226 Difference]: Without dead ends: 143 [2020-12-23 17:32:20,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2020-12-23 17:32:20,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-12-23 17:32:20,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 117. [2020-12-23 17:32:20,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-12-23 17:32:20,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 126 transitions. [2020-12-23 17:32:20,597 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 126 transitions. Word has length 67 [2020-12-23 17:32:20,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:20,598 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 126 transitions. [2020-12-23 17:32:20,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-12-23 17:32:20,598 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 126 transitions. [2020-12-23 17:32:20,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-23 17:32:20,598 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:20,599 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:20,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-23 17:32:20,814 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:20,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:20,815 INFO L82 PathProgramCache]: Analyzing trace with hash -221625277, now seen corresponding path program 1 times [2020-12-23 17:32:20,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:20,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583002075] [2020-12-23 17:32:20,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:21,130 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 50 proven. 33 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 17:32:21,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583002075] [2020-12-23 17:32:21,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052172866] [2020-12-23 17:32:21,131 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:21,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 32 conjunts are in the unsatisfiable core [2020-12-23 17:32:21,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:32:21,312 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 17:32:21,312 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:21,315 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:21,315 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:21,315 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:32:21,348 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:21,349 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-23 17:32:21,351 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:32:21,353 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:21,360 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:21,361 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:21,361 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2020-12-23 17:32:21,399 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-23 17:32:21,402 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:21,412 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:21,412 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:21,413 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2020-12-23 17:32:21,469 INFO L348 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2020-12-23 17:32:21,470 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:32:21,471 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:21,483 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:21,486 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:21,487 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:33 [2020-12-23 17:32:21,619 INFO L348 Elim1Store]: treesize reduction 12, result has 87.9 percent of original size [2020-12-23 17:32:21,620 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 56 treesize of output 111 [2020-12-23 17:32:21,626 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-23 17:32:21,626 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:32:21,628 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:21,639 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:21,640 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 17:32:21,640 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:61, output treesize:51 [2020-12-23 17:32:21,996 INFO L348 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2020-12-23 17:32:21,997 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 54 [2020-12-23 17:32:22,000 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:22,007 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:22,008 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:32:22,009 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:60, output treesize:15 [2020-12-23 17:32:22,114 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 70 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-23 17:32:22,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:32:22,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2020-12-23 17:32:22,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675123701] [2020-12-23 17:32:22,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-23 17:32:22,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:22,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-23 17:32:22,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2020-12-23 17:32:22,116 INFO L87 Difference]: Start difference. First operand 117 states and 126 transitions. Second operand 22 states. [2020-12-23 17:32:23,379 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-12-23 17:32:23,621 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-12-23 17:32:23,908 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2020-12-23 17:32:24,095 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2020-12-23 17:32:24,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:24,468 INFO L93 Difference]: Finished difference Result 145 states and 154 transitions. [2020-12-23 17:32:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-23 17:32:24,469 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 69 [2020-12-23 17:32:24,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:24,471 INFO L225 Difference]: With dead ends: 145 [2020-12-23 17:32:24,471 INFO L226 Difference]: Without dead ends: 145 [2020-12-23 17:32:24,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2020-12-23 17:32:24,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-12-23 17:32:24,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 119. [2020-12-23 17:32:24,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-12-23 17:32:24,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2020-12-23 17:32:24,476 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 69 [2020-12-23 17:32:24,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:24,476 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 129 transitions. [2020-12-23 17:32:24,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-12-23 17:32:24,477 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 129 transitions. [2020-12-23 17:32:24,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-23 17:32:24,477 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:24,477 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:24,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-23 17:32:24,690 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:24,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:24,691 INFO L82 PathProgramCache]: Analyzing trace with hash -221625276, now seen corresponding path program 1 times [2020-12-23 17:32:24,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:24,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274467596] [2020-12-23 17:32:24,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:25,121 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 60 proven. 27 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-23 17:32:25,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274467596] [2020-12-23 17:32:25,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988642608] [2020-12-23 17:32:25,122 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:25,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 47 conjunts are in the unsatisfiable core [2020-12-23 17:32:25,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:32:25,392 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 17:32:25,393 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:25,400 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:25,401 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:25,401 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-23 17:32:25,505 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:25,505 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 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 17:32:25,507 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:32:25,508 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:25,516 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:25,517 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:25,517 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:14 [2020-12-23 17:32:25,555 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-23 17:32:25,556 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:25,568 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:25,572 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-23 17:32:25,573 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:25,588 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:25,589 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:25,589 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:32 [2020-12-23 17:32:25,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:25,637 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:32:25,638 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:25,657 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:25,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:25,664 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:32:25,665 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:25,682 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:25,683 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:25,684 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:58, output treesize:50 [2020-12-23 17:32:25,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:25,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:25,777 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:25,782 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 122 [2020-12-23 17:32:25,785 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:25,808 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:25,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:25,815 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 74 [2020-12-23 17:32:25,817 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:25,842 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:25,843 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:25,843 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:131, output treesize:111 [2020-12-23 17:32:26,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:26,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:26,318 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:32:26,319 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:32:26,324 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:26,324 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 53 [2020-12-23 17:32:26,326 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:26,354 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:26,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:26,359 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:32:26,360 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 28 [2020-12-23 17:32:26,362 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:26,376 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:26,380 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:26,381 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:135, output treesize:14 [2020-12-23 17:32:26,521 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 60 proven. 11 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-23 17:32:26,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:32:26,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2020-12-23 17:32:26,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093375475] [2020-12-23 17:32:26,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-12-23 17:32:26,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:26,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-12-23 17:32:26,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2020-12-23 17:32:26,524 INFO L87 Difference]: Start difference. First operand 119 states and 129 transitions. Second operand 28 states. [2020-12-23 17:32:27,352 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-12-23 17:32:27,558 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2020-12-23 17:32:27,941 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2020-12-23 17:32:29,518 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-12-23 17:32:29,749 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-12-23 17:32:30,044 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108 [2020-12-23 17:32:30,408 WARN L197 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 139 [2020-12-23 17:32:30,769 WARN L197 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 141 [2020-12-23 17:32:31,210 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 142 [2020-12-23 17:32:31,615 WARN L197 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 147 [2020-12-23 17:32:31,910 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-12-23 17:32:32,490 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 100 [2020-12-23 17:32:32,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:32,752 INFO L93 Difference]: Finished difference Result 179 states and 194 transitions. [2020-12-23 17:32:32,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-23 17:32:32,753 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 69 [2020-12-23 17:32:32,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:32,755 INFO L225 Difference]: With dead ends: 179 [2020-12-23 17:32:32,755 INFO L226 Difference]: Without dead ends: 179 [2020-12-23 17:32:32,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=386, Invalid=1594, Unknown=0, NotChecked=0, Total=1980 [2020-12-23 17:32:32,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-12-23 17:32:32,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 145. [2020-12-23 17:32:32,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-12-23 17:32:32,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 162 transitions. [2020-12-23 17:32:32,761 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 162 transitions. Word has length 69 [2020-12-23 17:32:32,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:32,761 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 162 transitions. [2020-12-23 17:32:32,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-12-23 17:32:32,761 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 162 transitions. [2020-12-23 17:32:32,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-23 17:32:32,762 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:32,762 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:32,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:32,976 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:32,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:32,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1069989460, now seen corresponding path program 1 times [2020-12-23 17:32:32,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:32,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904550669] [2020-12-23 17:32:32,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:33,107 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-12-23 17:32:33,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904550669] [2020-12-23 17:32:33,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498139734] [2020-12-23 17:32:33,108 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:33,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-23 17:32:33,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:32:33,340 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:32:33,356 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:32:33,358 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:32:33,369 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2020-12-23 17:32:33,370 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:33,374 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2020-12-23 17:32:33,376 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:33,388 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:33,391 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2020-12-23 17:32:33,393 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:33,395 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2020-12-23 17:32:33,397 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:33,401 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:33,402 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 17:32:33,403 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:59, output treesize:9 [2020-12-23 17:32:33,444 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-12-23 17:32:33,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:32:33,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2020-12-23 17:32:33,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663920209] [2020-12-23 17:32:33,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:32:33,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:33,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:32:33,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:32:33,447 INFO L87 Difference]: Start difference. First operand 145 states and 162 transitions. Second operand 10 states. [2020-12-23 17:32:33,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:33,733 INFO L93 Difference]: Finished difference Result 148 states and 161 transitions. [2020-12-23 17:32:33,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 17:32:33,734 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 73 [2020-12-23 17:32:33,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:33,735 INFO L225 Difference]: With dead ends: 148 [2020-12-23 17:32:33,735 INFO L226 Difference]: Without dead ends: 148 [2020-12-23 17:32:33,736 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-12-23 17:32:33,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-12-23 17:32:33,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 145. [2020-12-23 17:32:33,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-12-23 17:32:33,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 160 transitions. [2020-12-23 17:32:33,740 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 160 transitions. Word has length 73 [2020-12-23 17:32:33,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:33,741 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 160 transitions. [2020-12-23 17:32:33,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:32:33,741 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 160 transitions. [2020-12-23 17:32:33,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-23 17:32:33,741 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:33,742 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:33,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2020-12-23 17:32:33,946 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:33,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:33,948 INFO L82 PathProgramCache]: Analyzing trace with hash -215880728, now seen corresponding path program 1 times [2020-12-23 17:32:33,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:33,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664866619] [2020-12-23 17:32:33,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:34,654 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 67 proven. 37 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-23 17:32:34,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664866619] [2020-12-23 17:32:34,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306542296] [2020-12-23 17:32:34,654 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:34,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 68 conjunts are in the unsatisfiable core [2020-12-23 17:32:34,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:32:34,867 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 17:32:34,868 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:34,870 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:34,870 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:34,870 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:32:34,906 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:34,907 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-23 17:32:34,909 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:32:34,914 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:34,923 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:34,924 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:34,924 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:18 [2020-12-23 17:32:34,971 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 17:32:34,972 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:34,987 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:34,988 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:34,988 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2020-12-23 17:32:35,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,054 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-12-23 17:32:35,056 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,073 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:35,074 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,074 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:37 [2020-12-23 17:32:35,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,157 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2020-12-23 17:32:35,159 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,178 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:35,179 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,179 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2020-12-23 17:32:35,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,265 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2020-12-23 17:32:35,266 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,284 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:35,285 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,285 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:46 [2020-12-23 17:32:35,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,302 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2020-12-23 17:32:35,304 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,321 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:35,322 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,322 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:46 [2020-12-23 17:32:35,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,340 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2020-12-23 17:32:35,342 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,359 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:35,361 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:32:35,361 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:46 [2020-12-23 17:32:35,538 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:35,538 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2020-12-23 17:32:35,540 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:32:35,542 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:32:35,543 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,562 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:35,564 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,564 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:54, output treesize:39 [2020-12-23 17:32:35,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,644 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2020-12-23 17:32:35,645 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,665 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:35,666 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,666 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2020-12-23 17:32:35,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,744 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2020-12-23 17:32:35,746 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,766 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:35,767 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,768 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:55 [2020-12-23 17:32:35,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:35,854 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2020-12-23 17:32:35,856 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,880 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:35,882 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:35,882 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:64 [2020-12-23 17:32:35,972 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_19|, |v_#memory_$Pointer$.base_25|], 42=[|v_#memory_int_44|]} [2020-12-23 17:32:35,980 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-23 17:32:35,981 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:36,028 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:36,034 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-23 17:32:36,036 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:36,082 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:36,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,101 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2020-12-23 17:32:36,103 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:36,134 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:36,135 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:36,136 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:109, output treesize:82 [2020-12-23 17:32:36,243 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_20|, |v_#memory_$Pointer$.base_26|], 42=[|v_#memory_int_45|]} [2020-12-23 17:32:36,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,254 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:32:36,255 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:36,328 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:36,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,337 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:32:36,339 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:36,393 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:36,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,414 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2020-12-23 17:32:36,419 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:36,458 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:36,459 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:36,460 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:127, output treesize:100 [2020-12-23 17:32:36,594 INFO L443 ElimStorePlain]: Different costs {6=[|v_#memory_$Pointer$.offset_21|, |v_#memory_$Pointer$.base_27|], 42=[|v_#memory_int_46|]} [2020-12-23 17:32:36,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,601 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 151 [2020-12-23 17:32:36,604 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:36,660 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:36,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,693 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:36,693 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 182 treesize of output 179 [2020-12-23 17:32:36,696 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:36,759 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:36,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:36,787 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 105 [2020-12-23 17:32:36,789 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:36,837 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:36,840 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:36,841 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:247, output treesize:178 [2020-12-23 17:32:37,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:37,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:37,592 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:32:37,594 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:32:37,599 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:37,599 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 132 treesize of output 83 [2020-12-23 17:32:37,602 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:37,655 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:37,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:37,662 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:32:37,664 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 46 [2020-12-23 17:32:37,667 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:37,717 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:37,722 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:32:37,723 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:202, output treesize:67 [2020-12-23 17:32:38,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:38,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:38,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:38,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:38,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:38,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:38,027 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 22 [2020-12-23 17:32:38,032 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:38,046 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:38,052 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:38,053 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:74, output treesize:3 [2020-12-23 17:32:38,152 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 73 proven. 25 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-23 17:32:38,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:32:38,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 25] total 40 [2020-12-23 17:32:38,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223970225] [2020-12-23 17:32:38,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-12-23 17:32:38,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:38,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-12-23 17:32:38,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1413, Unknown=0, NotChecked=0, Total=1560 [2020-12-23 17:32:38,155 INFO L87 Difference]: Start difference. First operand 145 states and 160 transitions. Second operand 40 states. [2020-12-23 17:32:39,559 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2020-12-23 17:32:40,108 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2020-12-23 17:32:40,326 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-12-23 17:32:40,588 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2020-12-23 17:32:40,880 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2020-12-23 17:32:41,265 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2020-12-23 17:32:41,639 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 102 [2020-12-23 17:32:42,074 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 69 [2020-12-23 17:32:42,321 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 71 [2020-12-23 17:32:42,583 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2020-12-23 17:32:42,896 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 79 [2020-12-23 17:32:43,376 WARN L197 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 143 [2020-12-23 17:32:43,923 WARN L197 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 184 [2020-12-23 17:32:44,491 WARN L197 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 186 [2020-12-23 17:32:45,172 WARN L197 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 186 [2020-12-23 17:32:45,780 WARN L197 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 188 [2020-12-23 17:32:46,538 WARN L197 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 197 [2020-12-23 17:32:47,127 WARN L197 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 156 [2020-12-23 17:32:47,793 WARN L197 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 158 [2020-12-23 17:32:48,428 WARN L197 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 160 [2020-12-23 17:32:49,071 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 133 [2020-12-23 17:32:49,690 WARN L197 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 145 [2020-12-23 17:32:49,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:32:49,939 INFO L93 Difference]: Finished difference Result 173 states and 187 transitions. [2020-12-23 17:32:49,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-12-23 17:32:49,940 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 77 [2020-12-23 17:32:49,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:32:49,944 INFO L225 Difference]: With dead ends: 173 [2020-12-23 17:32:49,944 INFO L226 Difference]: Without dead ends: 173 [2020-12-23 17:32:49,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 61 SyntacticMatches, 8 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=911, Invalid=4201, Unknown=0, NotChecked=0, Total=5112 [2020-12-23 17:32:49,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-12-23 17:32:49,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 145. [2020-12-23 17:32:49,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-12-23 17:32:49,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 159 transitions. [2020-12-23 17:32:49,957 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 159 transitions. Word has length 77 [2020-12-23 17:32:49,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:32:49,957 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 159 transitions. [2020-12-23 17:32:49,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-12-23 17:32:49,957 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 159 transitions. [2020-12-23 17:32:49,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-23 17:32:49,958 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:32:49,958 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:32:50,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:50,167 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:32:50,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:32:50,168 INFO L82 PathProgramCache]: Analyzing trace with hash 323840077, now seen corresponding path program 1 times [2020-12-23 17:32:50,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:32:50,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724587398] [2020-12-23 17:32:50,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:32:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:50,881 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 65 proven. 41 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-23 17:32:50,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724587398] [2020-12-23 17:32:50,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225427318] [2020-12-23 17:32:50,882 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:32:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:32:51,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 69 conjunts are in the unsatisfiable core [2020-12-23 17:32:51,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:32:51,047 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 17:32:51,048 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,050 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:51,050 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,050 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:32:51,098 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:51,099 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-23 17:32:51,102 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:32:51,104 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,112 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:51,112 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,112 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:18 [2020-12-23 17:32:51,194 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-23 17:32:51,195 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,207 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:51,208 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,208 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2020-12-23 17:32:51,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:51,265 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:32:51,266 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,279 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:51,280 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,280 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:39 [2020-12-23 17:32:51,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:51,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:51,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:51,348 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2020-12-23 17:32:51,352 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,367 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:51,368 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,368 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:58, output treesize:39 [2020-12-23 17:32:51,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:51,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:51,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:51,380 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2020-12-23 17:32:51,381 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,394 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:51,395 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,395 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:58, output treesize:39 [2020-12-23 17:32:51,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:51,410 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 0 case distinctions, treesize of input 38 treesize of output 25 [2020-12-23 17:32:51,411 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,425 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:51,427 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:32:51,427 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:58, output treesize:39 [2020-12-23 17:32:51,585 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:51,586 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2020-12-23 17:32:51,588 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:32:51,589 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:32:51,591 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,607 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:51,609 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,609 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:44, output treesize:29 [2020-12-23 17:32:51,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:51,664 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 0 case distinctions, treesize of input 30 treesize of output 32 [2020-12-23 17:32:51,666 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,679 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:51,680 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,680 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2020-12-23 17:32:51,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:51,749 INFO L348 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2020-12-23 17:32:51,750 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 44 [2020-12-23 17:32:51,751 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,767 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:51,767 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,768 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:45 [2020-12-23 17:32:51,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:51,858 INFO L348 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2020-12-23 17:32:51,859 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 56 [2020-12-23 17:32:51,860 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,877 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:51,878 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,879 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:58, output treesize:54 [2020-12-23 17:32:51,948 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_22|, |v_#memory_$Pointer$.base_28|], 30=[|v_#memory_int_55|]} [2020-12-23 17:32:51,954 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-23 17:32:51,955 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:51,992 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:51,998 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-23 17:32:51,999 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:52,033 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:52,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,046 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2020-12-23 17:32:52,047 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:52,071 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:52,072 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:52,073 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:99, output treesize:72 [2020-12-23 17:32:52,177 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_23|, |v_#memory_$Pointer$.base_29|], 30=[|v_#memory_int_56|]} [2020-12-23 17:32:52,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,185 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:32:52,188 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:52,239 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:52,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,245 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:32:52,247 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:52,292 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:52,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,307 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2020-12-23 17:32:52,309 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:52,345 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:52,347 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:52,347 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:117, output treesize:90 [2020-12-23 17:32:52,485 INFO L443 ElimStorePlain]: Different costs {6=[|v_#memory_$Pointer$.base_30|, |v_#memory_$Pointer$.offset_24|], 30=[|v_#memory_int_57|]} [2020-12-23 17:32:52,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,543 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:52,543 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 173 treesize of output 216 [2020-12-23 17:32:52,551 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2020-12-23 17:32:52,552 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:32:52,554 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:52,605 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:52,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,611 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 128 [2020-12-23 17:32:52,616 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:52,667 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:52,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:52,684 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 83 [2020-12-23 17:32:52,685 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:52,725 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:52,726 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:52,727 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:225, output treesize:156 [2020-12-23 17:32:53,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:53,301 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:53,302 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 113 treesize of output 106 [2020-12-23 17:32:53,304 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:53,335 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:53,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:53,340 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 39 [2020-12-23 17:32:53,342 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:53,361 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:53,363 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:32:53,363 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:174, output treesize:54 [2020-12-23 17:32:53,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:32:53,617 INFO L348 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2020-12-23 17:32:53,617 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 19 [2020-12-23 17:32:53,620 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:32:53,628 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:32:53,630 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:32:53,630 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:63, output treesize:3 [2020-12-23 17:32:53,709 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 71 proven. 29 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-23 17:32:53,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:32:53,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25] total 41 [2020-12-23 17:32:53,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92561319] [2020-12-23 17:32:53,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-12-23 17:32:53,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:32:53,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-12-23 17:32:53,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1488, Unknown=0, NotChecked=0, Total=1640 [2020-12-23 17:32:53,712 INFO L87 Difference]: Start difference. First operand 145 states and 159 transitions. Second operand 41 states. [2020-12-23 17:32:54,822 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-12-23 17:32:55,480 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2020-12-23 17:32:55,714 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2020-12-23 17:32:55,965 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2020-12-23 17:32:56,284 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2020-12-23 17:32:56,677 WARN L197 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 99 [2020-12-23 17:32:56,918 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2020-12-23 17:32:57,204 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-12-23 17:32:57,495 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2020-12-23 17:32:57,806 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2020-12-23 17:32:58,148 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 78 [2020-12-23 17:32:58,837 WARN L197 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 141 [2020-12-23 17:33:03,893 WARN L197 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 180 [2020-12-23 17:33:09,014 WARN L197 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 210 DAG size of output: 182 [2020-12-23 17:33:20,167 WARN L197 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 182 [2020-12-23 17:33:25,311 WARN L197 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 212 DAG size of output: 184 [2020-12-23 17:33:32,442 WARN L197 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 214 DAG size of output: 186 [2020-12-23 17:33:49,717 WARN L197 SmtUtils]: Spent 5.14 s on a formula simplification. DAG size of input: 223 DAG size of output: 195 [2020-12-23 17:34:06,645 WARN L197 SmtUtils]: Spent 4.77 s on a formula simplification. DAG size of input: 191 DAG size of output: 167 [2020-12-23 17:34:17,630 WARN L197 SmtUtils]: Spent 4.82 s on a formula simplification. DAG size of input: 193 DAG size of output: 169 [2020-12-23 17:34:26,555 WARN L197 SmtUtils]: Spent 4.81 s on a formula simplification. DAG size of input: 195 DAG size of output: 171 [2020-12-23 17:34:33,459 WARN L197 SmtUtils]: Spent 4.78 s on a formula simplification. DAG size of input: 197 DAG size of output: 173 [2020-12-23 17:34:34,159 WARN L197 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 129 [2020-12-23 17:34:35,005 WARN L197 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 143 [2020-12-23 17:34:35,781 WARN L197 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 143 [2020-12-23 17:34:35,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:34:35,918 INFO L93 Difference]: Finished difference Result 173 states and 186 transitions. [2020-12-23 17:34:35,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-12-23 17:34:35,921 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 79 [2020-12-23 17:34:35,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:34:35,923 INFO L225 Difference]: With dead ends: 173 [2020-12-23 17:34:35,923 INFO L226 Difference]: Without dead ends: 173 [2020-12-23 17:34:35,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 64 SyntacticMatches, 7 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1262 ImplicationChecksByTransitivity, 74.0s TimeCoverageRelationStatistics Valid=976, Invalid=4556, Unknown=18, NotChecked=0, Total=5550 [2020-12-23 17:34:35,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-12-23 17:34:35,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 145. [2020-12-23 17:34:35,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-12-23 17:34:35,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 158 transitions. [2020-12-23 17:34:35,929 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 158 transitions. Word has length 79 [2020-12-23 17:34:35,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:34:35,929 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 158 transitions. [2020-12-23 17:34:35,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-12-23 17:34:35,939 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 158 transitions. [2020-12-23 17:34:35,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-23 17:34:35,940 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:34:35,940 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:34:36,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-12-23 17:34:36,141 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:34:36,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:34:36,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1110523695, now seen corresponding path program 1 times [2020-12-23 17:34:36,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:34:36,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962241337] [2020-12-23 17:34:36,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:34:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:34:36,812 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 34 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-23 17:34:36,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962241337] [2020-12-23 17:34:36,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008307886] [2020-12-23 17:34:36,813 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:34:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:34:36,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 63 conjunts are in the unsatisfiable core [2020-12-23 17:34:36,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:34:37,142 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:37,142 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-23 17:34:37,144 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:34:37,146 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:34:37,146 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:34:37,149 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:37,172 INFO L625 ElimStorePlain]: treesize reduction 10, result has 68.8 percent of original size [2020-12-23 17:34:37,173 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:34:37,173 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:22 [2020-12-23 17:34:37,285 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 13 treesize of output 9 [2020-12-23 17:34:37,286 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:37,303 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:37,304 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:34:37,304 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2020-12-23 17:34:37,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:37,394 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:34:37,395 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:37,434 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:37,437 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:34:37,437 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:43 [2020-12-23 17:34:37,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:37,592 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:37,593 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 115 [2020-12-23 17:34:37,597 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-23 17:34:37,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 17:34:37,599 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:37,620 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:37,622 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 17:34:37,622 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:77, output treesize:67 [2020-12-23 17:34:37,839 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:37,839 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 32 [2020-12-23 17:34:37,844 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:34:37,851 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:34:37,852 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:34:37,857 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:37,880 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:37,881 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:34:37,882 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:72, output treesize:65 [2020-12-23 17:34:37,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:38,075 INFO L348 Elim1Store]: treesize reduction 24, result has 68.4 percent of original size [2020-12-23 17:34:38,075 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 91 [2020-12-23 17:34:38,084 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:38,104 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:38,105 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 17:34:38,106 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:65 [2020-12-23 17:34:38,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:38,181 INFO L348 Elim1Store]: treesize reduction 28, result has 65.9 percent of original size [2020-12-23 17:34:38,182 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 93 [2020-12-23 17:34:38,186 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:38,207 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:38,209 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 17:34:38,209 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:84, output treesize:65 [2020-12-23 17:34:38,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:38,292 INFO L348 Elim1Store]: treesize reduction 28, result has 65.9 percent of original size [2020-12-23 17:34:38,293 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 93 [2020-12-23 17:34:38,296 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:38,315 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:38,317 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 17:34:38,317 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:84, output treesize:65 [2020-12-23 17:34:38,323 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_25|], 12=[|v_#memory_$Pointer$.base_37|]} [2020-12-23 17:34:38,329 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 13 treesize of output 9 [2020-12-23 17:34:38,330 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:38,357 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:38,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:38,406 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:38,406 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 124 [2020-12-23 17:34:38,410 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:38,441 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:38,442 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:34:38,442 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:91, output treesize:83 [2020-12-23 17:34:38,568 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_26|], 20=[|v_#memory_$Pointer$.base_38|]} [2020-12-23 17:34:38,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:38,576 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:34:38,578 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:38,623 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:38,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:38,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:38,690 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:38,691 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 77 treesize of output 152 [2020-12-23 17:34:38,695 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:38,735 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:38,737 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:34:38,737 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:109, output treesize:101 [2020-12-23 17:34:38,899 INFO L443 ElimStorePlain]: Different costs {6=[|v_#memory_$Pointer$.offset_27|], 30=[|v_#memory_$Pointer$.base_39|]} [2020-12-23 17:34:38,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:38,906 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 216 treesize of output 167 [2020-12-23 17:34:38,909 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:38,955 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:38,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:38,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:39,315 WARN L197 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-12-23 17:34:39,316 INFO L348 Elim1Store]: treesize reduction 32, result has 90.3 percent of original size [2020-12-23 17:34:39,316 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 198 treesize of output 374 [2020-12-23 17:34:39,330 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[16, 3, 2, 1] term [2020-12-23 17:34:39,330 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-23 17:34:39,332 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:39,375 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:39,377 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:34:39,378 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:235, output treesize:194 [2020-12-23 17:34:40,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:40,083 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 117 [2020-12-23 17:34:40,087 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:40,119 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:40,122 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:34:40,122 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:212, output treesize:131 [2020-12-23 17:34:40,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:40,728 WARN L197 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2020-12-23 17:34:40,729 INFO L348 Elim1Store]: treesize reduction 12, result has 93.9 percent of original size [2020-12-23 17:34:40,729 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 134 treesize of output 222 [2020-12-23 17:34:40,733 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:40,748 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:40,750 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 17:34:40,751 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:140, output treesize:15 [2020-12-23 17:34:40,904 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 60 proven. 32 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-23 17:34:40,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:34:40,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 40 [2020-12-23 17:34:40,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369688283] [2020-12-23 17:34:40,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-12-23 17:34:40,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:34:40,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-12-23 17:34:40,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1440, Unknown=0, NotChecked=0, Total=1560 [2020-12-23 17:34:40,906 INFO L87 Difference]: Start difference. First operand 145 states and 158 transitions. Second operand 40 states. [2020-12-23 17:34:42,224 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-12-23 17:34:42,467 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2020-12-23 17:34:42,785 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-12-23 17:34:43,090 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2020-12-23 17:34:43,354 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2020-12-23 17:34:43,685 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2020-12-23 17:34:44,146 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2020-12-23 17:34:44,516 WARN L197 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2020-12-23 17:34:44,964 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2020-12-23 17:34:45,535 WARN L197 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-12-23 17:34:45,914 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2020-12-23 17:34:46,903 WARN L197 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 147 [2020-12-23 17:34:48,147 WARN L197 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 209 DAG size of output: 183 [2020-12-23 17:34:49,501 WARN L197 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 213 DAG size of output: 185 [2020-12-23 17:34:51,264 WARN L197 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 233 DAG size of output: 209 [2020-12-23 17:34:52,359 WARN L197 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 182 [2020-12-23 17:34:53,499 WARN L197 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 209 DAG size of output: 187 [2020-12-23 17:34:54,805 WARN L197 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 149 [2020-12-23 17:34:55,586 WARN L197 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 123 [2020-12-23 17:34:56,254 WARN L197 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 125 [2020-12-23 17:34:56,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:34:56,270 INFO L93 Difference]: Finished difference Result 156 states and 165 transitions. [2020-12-23 17:34:56,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-23 17:34:56,271 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 80 [2020-12-23 17:34:56,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:34:56,272 INFO L225 Difference]: With dead ends: 156 [2020-12-23 17:34:56,273 INFO L226 Difference]: Without dead ends: 156 [2020-12-23 17:34:56,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 64 SyntacticMatches, 8 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=684, Invalid=3606, Unknown=0, NotChecked=0, Total=4290 [2020-12-23 17:34:56,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-12-23 17:34:56,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 131. [2020-12-23 17:34:56,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-12-23 17:34:56,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 140 transitions. [2020-12-23 17:34:56,278 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 140 transitions. Word has length 80 [2020-12-23 17:34:56,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:34:56,278 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 140 transitions. [2020-12-23 17:34:56,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-12-23 17:34:56,279 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 140 transitions. [2020-12-23 17:34:56,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-23 17:34:56,279 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:34:56,279 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:34:56,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:34:56,486 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:34:56,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:34:56,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1974245714, now seen corresponding path program 1 times [2020-12-23 17:34:56,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:34:56,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956103635] [2020-12-23 17:34:56,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:34:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:34:57,275 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 44 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-23 17:34:57,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956103635] [2020-12-23 17:34:57,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96616365] [2020-12-23 17:34:57,276 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:34:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:34:57,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 68 conjunts are in the unsatisfiable core [2020-12-23 17:34:57,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:34:57,471 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 17:34:57,472 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:57,475 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:57,475 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:34:57,475 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:34:57,510 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:57,511 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-23 17:34:57,513 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:34:57,515 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:57,525 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:57,526 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:34:57,527 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:18 [2020-12-23 17:34:57,630 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-23 17:34:57,631 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:57,646 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:57,647 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:34:57,647 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2020-12-23 17:34:57,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:57,748 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-23 17:34:57,750 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:57,770 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:57,771 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:34:57,772 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:30 [2020-12-23 17:34:57,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:57,788 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-23 17:34:57,789 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:57,808 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:57,809 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:34:57,810 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:30 [2020-12-23 17:34:57,827 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-12-23 17:34:57,829 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:57,851 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:57,852 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:34:57,853 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:49, output treesize:30 [2020-12-23 17:34:58,054 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:58,055 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2020-12-23 17:34:58,057 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:34:58,060 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:34:58,064 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,081 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:58,083 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,084 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:20 [2020-12-23 17:34:58,152 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-12-23 17:34:58,154 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,167 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:58,168 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,169 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2020-12-23 17:34:58,242 INFO L348 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2020-12-23 17:34:58,243 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 30 treesize of output 32 [2020-12-23 17:34:58,244 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,262 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:58,263 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,264 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2020-12-23 17:34:58,351 INFO L348 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2020-12-23 17:34:58,352 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2020-12-23 17:34:58,354 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,372 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:58,373 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,374 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:45 [2020-12-23 17:34:58,445 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_40|, |v_#memory_$Pointer$.offset_28|], 20=[|v_#memory_int_65|]} [2020-12-23 17:34:58,452 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-23 17:34:58,453 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,492 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:58,500 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-23 17:34:58,501 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,540 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:58,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:58,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:58,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:58,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:58,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:58,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:58,555 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2020-12-23 17:34:58,558 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,582 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:58,583 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,583 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:90, output treesize:63 [2020-12-23 17:34:58,674 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.base_41|, |v_#memory_$Pointer$.offset_29|], 20=[|v_#memory_int_66|]} [2020-12-23 17:34:58,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:58,685 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:34:58,686 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,740 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:58,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:58,748 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:34:58,749 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,798 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:58,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:58,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:58,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:58,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:58,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:58,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:58,814 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2020-12-23 17:34:58,816 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,847 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:58,848 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:34:58,849 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:108, output treesize:81 [2020-12-23 17:34:58,959 INFO L443 ElimStorePlain]: Different costs {6=[|v_#memory_$Pointer$.base_42|, |v_#memory_$Pointer$.offset_30|], 20=[|v_#memory_int_67|]} [2020-12-23 17:34:58,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:59,020 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:59,021 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 152 treesize of output 201 [2020-12-23 17:34:59,024 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-23 17:34:59,025 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:34:59,027 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:59,076 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:59,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:59,083 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 113 [2020-12-23 17:34:59,085 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:59,131 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:59,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:59,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:59,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:59,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:34:59,150 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 59 [2020-12-23 17:34:59,151 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:34:59,187 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:34:59,188 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:34:59,188 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:204, output treesize:135 [2020-12-23 17:35:00,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:00,041 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:00,042 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 95 [2020-12-23 17:35:00,044 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:00,085 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:00,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:00,092 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 30 [2020-12-23 17:35:00,096 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:00,121 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:00,123 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:35:00,124 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:163, output treesize:49 [2020-12-23 17:35:00,413 INFO L348 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2020-12-23 17:35:00,413 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 16 [2020-12-23 17:35:00,416 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:00,426 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:00,429 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:35:00,429 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:58, output treesize:3 [2020-12-23 17:35:00,492 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 70 proven. 32 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-23 17:35:00,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:35:00,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 25] total 41 [2020-12-23 17:35:00,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876242757] [2020-12-23 17:35:00,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-12-23 17:35:00,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:35:00,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-12-23 17:35:00,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1491, Unknown=0, NotChecked=0, Total=1640 [2020-12-23 17:35:00,494 INFO L87 Difference]: Start difference. First operand 131 states and 140 transitions. Second operand 41 states. [2020-12-23 17:35:01,616 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2020-12-23 17:35:01,856 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2020-12-23 17:35:02,158 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 58 [2020-12-23 17:35:02,577 WARN L197 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 96 [2020-12-23 17:35:02,840 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-12-23 17:35:03,113 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2020-12-23 17:35:03,428 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2020-12-23 17:35:03,725 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2020-12-23 17:35:04,057 WARN L197 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2020-12-23 17:35:04,286 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2020-12-23 17:35:04,589 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2020-12-23 17:35:05,265 WARN L197 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 134 [2020-12-23 17:35:06,212 WARN L197 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 170 [2020-12-23 17:35:07,155 WARN L197 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 174 [2020-12-23 17:35:08,115 WARN L197 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 170 [2020-12-23 17:35:09,129 WARN L197 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 172 [2020-12-23 17:35:10,104 WARN L197 SmtUtils]: Spent 893.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 174 [2020-12-23 17:35:11,267 WARN L197 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 212 DAG size of output: 184 [2020-12-23 17:35:12,032 WARN L197 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 159 [2020-12-23 17:35:12,854 WARN L197 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 161 [2020-12-23 17:35:13,645 WARN L197 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 163 [2020-12-23 17:35:14,509 WARN L197 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 136 [2020-12-23 17:35:15,167 WARN L197 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 119 [2020-12-23 17:35:15,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:35:15,209 INFO L93 Difference]: Finished difference Result 154 states and 163 transitions. [2020-12-23 17:35:15,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-23 17:35:15,211 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 81 [2020-12-23 17:35:15,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:35:15,212 INFO L225 Difference]: With dead ends: 154 [2020-12-23 17:35:15,212 INFO L226 Difference]: Without dead ends: 154 [2020-12-23 17:35:15,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 67 SyntacticMatches, 4 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1141 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=836, Invalid=3994, Unknown=0, NotChecked=0, Total=4830 [2020-12-23 17:35:15,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-12-23 17:35:15,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 131. [2020-12-23 17:35:15,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-12-23 17:35:15,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 139 transitions. [2020-12-23 17:35:15,218 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 139 transitions. Word has length 81 [2020-12-23 17:35:15,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:35:15,218 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 139 transitions. [2020-12-23 17:35:15,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-12-23 17:35:15,218 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 139 transitions. [2020-12-23 17:35:15,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-23 17:35:15,219 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:35:15,219 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:35:15,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-12-23 17:35:15,434 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:35:15,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:35:15,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1125408756, now seen corresponding path program 2 times [2020-12-23 17:35:15,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:35:15,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302932399] [2020-12-23 17:35:15,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:35:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:35:16,438 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 64 proven. 48 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-23 17:35:16,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302932399] [2020-12-23 17:35:16,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344388027] [2020-12-23 17:35:16,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:35:16,590 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 17:35:16,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:35:16,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 65 conjunts are in the unsatisfiable core [2020-12-23 17:35:16,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:35:16,619 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 17:35:16,620 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:16,623 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:16,623 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:35:16,624 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:35:16,638 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_38|], 3=[|v_#valid_67|]} [2020-12-23 17:35:16,642 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 17:35:16,643 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:16,656 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:16,682 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:16,683 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-23 17:35:16,684 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:35:16,686 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:16,699 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:16,700 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:35:16,700 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:23 [2020-12-23 17:35:16,839 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-23 17:35:16,840 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:16,858 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:16,859 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:35:16,860 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:35 [2020-12-23 17:35:16,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:16,943 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:35:16,944 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:16,966 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:16,967 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:35:16,967 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:48, output treesize:44 [2020-12-23 17:35:17,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:17,125 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:17,126 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 111 [2020-12-23 17:35:17,128 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-23 17:35:17,128 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:35:17,130 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:17,154 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:17,156 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 17:35:17,156 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:72, output treesize:62 [2020-12-23 17:35:17,357 INFO L443 ElimStorePlain]: Different costs {1=[|v_#length_39|], 6=[|v_#valid_68|]} [2020-12-23 17:35:17,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:17,365 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-12-23 17:35:17,371 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:17,415 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:17,485 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:17,485 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 99 [2020-12-23 17:35:17,488 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:35:17,494 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:35:17,496 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:17,547 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:17,550 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:35:17,550 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:85, output treesize:92 [2020-12-23 17:35:17,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:17,772 INFO L348 Elim1Store]: treesize reduction 24, result has 68.4 percent of original size [2020-12-23 17:35:17,773 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 92 [2020-12-23 17:35:17,777 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:17,831 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:17,834 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:35:17,834 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:107, output treesize:92 [2020-12-23 17:35:17,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:17,948 INFO L348 Elim1Store]: treesize reduction 28, result has 65.9 percent of original size [2020-12-23 17:35:17,948 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 94 [2020-12-23 17:35:17,951 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:18,002 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:18,005 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:35:18,006 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:111, output treesize:92 [2020-12-23 17:35:18,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:18,112 INFO L348 Elim1Store]: treesize reduction 28, result has 65.9 percent of original size [2020-12-23 17:35:18,113 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 94 [2020-12-23 17:35:18,117 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:18,171 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:18,173 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:35:18,174 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:111, output treesize:92 [2020-12-23 17:35:18,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:18,241 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:18,242 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 125 [2020-12-23 17:35:18,246 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:18,307 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:18,310 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:35:18,311 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:105, output treesize:101 [2020-12-23 17:35:18,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:18,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:18,539 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:18,539 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 78 treesize of output 153 [2020-12-23 17:35:18,544 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:18,612 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:18,615 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:35:18,616 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:114, output treesize:110 [2020-12-23 17:35:18,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:18,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:18,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:18,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:18,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:35:18,996 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-12-23 17:35:18,997 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:35:18,998 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 164 treesize of output 303 [2020-12-23 17:35:19,004 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:35:19,160 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-12-23 17:35:19,161 INFO L625 ElimStorePlain]: treesize reduction 20, result has 90.0 percent of original size [2020-12-23 17:35:19,164 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:35:19,167 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 17:35:19,169 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:35:19,176 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:35:19,176 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:186, output treesize:180 [2020-12-23 17:35:19,180 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:35:19,182 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 17:35:19,184 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:35:19,349 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:35:19,351 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 17:35:19,354 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 17:35:19,358 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 17:35:31,605 WARN L197 SmtUtils]: Spent 10.07 s on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 17:35:32,679 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:35:47,207 WARN L197 SmtUtils]: Spent 14.34 s on a formula simplification that was a NOOP. DAG size: 95 [2020-12-23 17:35:47,217 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:35:55,500 WARN L197 SmtUtils]: Spent 8.07 s on a formula simplification that was a NOOP. DAG size: 95