/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-ext-properties/test-0504_1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 17:09:25,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 17:09:25,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 17:09:25,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 17:09:25,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 17:09:25,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 17:09:25,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 17:09:25,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 17:09:25,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 17:09:25,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 17:09:25,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 17:09:25,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 17:09:25,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 17:09:25,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 17:09:25,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 17:09:25,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 17:09:25,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 17:09:25,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 17:09:25,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 17:09:25,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 17:09:25,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 17:09:25,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 17:09:25,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 17:09:25,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 17:09:25,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 17:09:25,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 17:09:25,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 17:09:25,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 17:09:25,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 17:09:25,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 17:09:25,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 17:09:25,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 17:09:25,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 17:09:25,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 17:09:25,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 17:09:25,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 17:09:25,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 17:09:25,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 17:09:25,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 17:09:25,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 17:09:25,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 17:09:25,237 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 17:09:25,303 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 17:09:25,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 17:09:25,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 17:09:25,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 17:09:25,311 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 17:09:25,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 17:09:25,312 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-23 17:09:25,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 17:09:25,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 17:09:25,313 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-23 17:09:25,314 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-23 17:09:25,315 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-23 17:09:25,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 17:09:25,316 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-23 17:09:25,316 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 17:09:25,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 17:09:25,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 17:09:25,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 17:09:25,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 17:09:25,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 17:09:25,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 17:09:25,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 17:09:25,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 17:09:25,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 17:09:25,319 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 17:09:25,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 17:09:25,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 17:09:25,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 17:09:25,893 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 17:09:25,894 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 17:09:25,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/test-0504_1.i [2020-12-23 17:09:25,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/04d1e6dd3/c9dddb75acbd4816bf6ffbda35766f19/FLAG7bcf45631 [2020-12-23 17:09:26,854 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 17:09:26,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0504_1.i [2020-12-23 17:09:26,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/04d1e6dd3/c9dddb75acbd4816bf6ffbda35766f19/FLAG7bcf45631 [2020-12-23 17:09:27,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/04d1e6dd3/c9dddb75acbd4816bf6ffbda35766f19 [2020-12-23 17:09:27,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 17:09:27,151 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 17:09:27,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 17:09:27,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 17:09:27,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 17:09:27,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:09:27" (1/1) ... [2020-12-23 17:09:27,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@668990bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:27, skipping insertion in model container [2020-12-23 17:09:27,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:09:27" (1/1) ... [2020-12-23 17:09:27,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 17:09:27,258 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],StructAccessExpression[IdentifierExpression[~x~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~y~0,],base],StructAccessExpression[IdentifierExpression[~y~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem14,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem14,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~y~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~y~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~y~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~y~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],StructAccessExpression[IdentifierExpression[~x~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~c2~0,] left hand side expression in assignment: lhs: VariableLHS[~first~0,] left hand side expression in assignment: lhs: VariableLHS[~last~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~last~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[~last~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~last~0,] left hand side expression in assignment: lhs: VariableLHS[~first~0,] left hand side expression in assignment: lhs: VariableLHS[~y~1,] [2020-12-23 17:09:27,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 17:09:27,663 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],StructAccessExpression[IdentifierExpression[~x~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~y~0,],base],StructAccessExpression[IdentifierExpression[~y~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem14,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem14,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~y~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~y~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~y~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~y~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],StructAccessExpression[IdentifierExpression[~x~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~c2~0,] left hand side expression in assignment: lhs: VariableLHS[~first~0,] left hand side expression in assignment: lhs: VariableLHS[~last~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~last~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[~last~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~last~0,] left hand side expression in assignment: lhs: VariableLHS[~first~0,] left hand side expression in assignment: lhs: VariableLHS[~y~1,] [2020-12-23 17:09:27,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 17:09:27,791 INFO L208 MainTranslator]: Completed translation [2020-12-23 17:09:27,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:27 WrapperNode [2020-12-23 17:09:27,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 17:09:27,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 17:09:27,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 17:09:27,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 17:09:27,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:27" (1/1) ... [2020-12-23 17:09:27,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:27" (1/1) ... [2020-12-23 17:09:27,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 17:09:27,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 17:09:27,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 17:09:27,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 17:09:27,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:27" (1/1) ... [2020-12-23 17:09:27,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:27" (1/1) ... [2020-12-23 17:09:27,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:27" (1/1) ... [2020-12-23 17:09:27,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:27" (1/1) ... [2020-12-23 17:09:27,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:27" (1/1) ... [2020-12-23 17:09:27,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:27" (1/1) ... [2020-12-23 17:09:27,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:27" (1/1) ... [2020-12-23 17:09:27,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 17:09:27,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 17:09:27,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 17:09:27,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 17:09:27,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:27" (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 17:09:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 17:09:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 17:09:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 17:09:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 17:09:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 17:09:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 17:09:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 17:09:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 17:09:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 17:09:28,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 17:09:28,841 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 17:09:28,841 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 17:09:28,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:09:28 BoogieIcfgContainer [2020-12-23 17:09:28,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 17:09:28,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 17:09:28,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 17:09:28,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 17:09:28,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 05:09:27" (1/3) ... [2020-12-23 17:09:28,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af6629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:09:28, skipping insertion in model container [2020-12-23 17:09:28,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:27" (2/3) ... [2020-12-23 17:09:28,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af6629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:09:28, skipping insertion in model container [2020-12-23 17:09:28,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:09:28" (3/3) ... [2020-12-23 17:09:28,857 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0504_1.i [2020-12-23 17:09:28,871 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 17:09:28,885 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 43 error locations. [2020-12-23 17:09:28,927 INFO L253 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2020-12-23 17:09:28,975 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 17:09:28,975 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-23 17:09:28,975 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 17:09:28,976 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 17:09:28,976 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 17:09:28,976 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 17:09:28,976 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 17:09:28,977 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 17:09:29,007 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2020-12-23 17:09:29,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-23 17:09:29,017 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:29,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-23 17:09:29,019 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:29,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:29,027 INFO L82 PathProgramCache]: Analyzing trace with hash 28793288, now seen corresponding path program 1 times [2020-12-23 17:09:29,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:29,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902385868] [2020-12-23 17:09:29,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:29,302 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 17:09:29,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902385868] [2020-12-23 17:09:29,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:29,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:09:29,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630820375] [2020-12-23 17:09:29,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 17:09:29,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:29,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 17:09:29,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 17:09:29,347 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 2 states. [2020-12-23 17:09:29,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:29,385 INFO L93 Difference]: Finished difference Result 94 states and 101 transitions. [2020-12-23 17:09:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 17:09:29,390 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-12-23 17:09:29,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:29,414 INFO L225 Difference]: With dead ends: 94 [2020-12-23 17:09:29,415 INFO L226 Difference]: Without dead ends: 92 [2020-12-23 17:09:29,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 17:09:29,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-12-23 17:09:29,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-12-23 17:09:29,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-12-23 17:09:29,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2020-12-23 17:09:29,488 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 99 transitions. Word has length 5 [2020-12-23 17:09:29,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:29,489 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 99 transitions. [2020-12-23 17:09:29,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 17:09:29,489 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 99 transitions. [2020-12-23 17:09:29,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 17:09:29,490 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:29,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:29,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 17:09:29,491 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:29,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:29,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1806850220, now seen corresponding path program 1 times [2020-12-23 17:09:29,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:29,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378537911] [2020-12-23 17:09:29,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:29,569 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 17:09:29,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378537911] [2020-12-23 17:09:29,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:29,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 17:09:29,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191133903] [2020-12-23 17:09:29,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:09:29,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:29,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:09:29,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:09:29,576 INFO L87 Difference]: Start difference. First operand 92 states and 99 transitions. Second operand 3 states. [2020-12-23 17:09:29,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:29,614 INFO L93 Difference]: Finished difference Result 99 states and 107 transitions. [2020-12-23 17:09:29,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:09:29,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-23 17:09:29,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:29,618 INFO L225 Difference]: With dead ends: 99 [2020-12-23 17:09:29,618 INFO L226 Difference]: Without dead ends: 99 [2020-12-23 17:09:29,619 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 17:09:29,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-12-23 17:09:29,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 96. [2020-12-23 17:09:29,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-23 17:09:29,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2020-12-23 17:09:29,634 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 7 [2020-12-23 17:09:29,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:29,634 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2020-12-23 17:09:29,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:09:29,635 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2020-12-23 17:09:29,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 17:09:29,636 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:29,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:29,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 17:09:29,637 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:29,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:29,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1806849231, now seen corresponding path program 1 times [2020-12-23 17:09:29,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:29,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125284928] [2020-12-23 17:09:29,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:29,702 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 17:09:29,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125284928] [2020-12-23 17:09:29,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:29,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:09:29,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132644769] [2020-12-23 17:09:29,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:09:29,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:29,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:09:29,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:09:29,706 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand 3 states. [2020-12-23 17:09:29,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:29,877 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions. [2020-12-23 17:09:29,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:09:29,878 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-23 17:09:29,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:29,882 INFO L225 Difference]: With dead ends: 121 [2020-12-23 17:09:29,882 INFO L226 Difference]: Without dead ends: 121 [2020-12-23 17:09:29,883 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 17:09:29,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-12-23 17:09:29,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 88. [2020-12-23 17:09:29,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-23 17:09:29,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2020-12-23 17:09:29,896 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 7 [2020-12-23 17:09:29,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:29,896 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2020-12-23 17:09:29,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:09:29,896 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2020-12-23 17:09:29,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 17:09:29,899 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:29,900 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:29,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 17:09:29,900 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:29,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:29,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1806849232, now seen corresponding path program 1 times [2020-12-23 17:09:29,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:29,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665604250] [2020-12-23 17:09:29,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:29,990 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 17:09:29,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665604250] [2020-12-23 17:09:29,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:29,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:09:29,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593155484] [2020-12-23 17:09:29,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:09:29,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:30,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:09:30,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:09:30,000 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand 3 states. [2020-12-23 17:09:30,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:30,137 INFO L93 Difference]: Finished difference Result 129 states and 145 transitions. [2020-12-23 17:09:30,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:09:30,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-23 17:09:30,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:30,140 INFO L225 Difference]: With dead ends: 129 [2020-12-23 17:09:30,140 INFO L226 Difference]: Without dead ends: 129 [2020-12-23 17:09:30,145 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 17:09:30,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-12-23 17:09:30,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 90. [2020-12-23 17:09:30,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-12-23 17:09:30,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 104 transitions. [2020-12-23 17:09:30,166 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 104 transitions. Word has length 7 [2020-12-23 17:09:30,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:30,166 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 104 transitions. [2020-12-23 17:09:30,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:09:30,167 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 104 transitions. [2020-12-23 17:09:30,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 17:09:30,172 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:30,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:30,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 17:09:30,173 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:30,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:30,174 INFO L82 PathProgramCache]: Analyzing trace with hash 177781672, now seen corresponding path program 1 times [2020-12-23 17:09:30,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:30,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797258058] [2020-12-23 17:09:30,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:30,251 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 17:09:30,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797258058] [2020-12-23 17:09:30,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:30,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:09:30,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904900663] [2020-12-23 17:09:30,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:09:30,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:30,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:09:30,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:09:30,265 INFO L87 Difference]: Start difference. First operand 90 states and 104 transitions. Second operand 3 states. [2020-12-23 17:09:30,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:30,365 INFO L93 Difference]: Finished difference Result 92 states and 105 transitions. [2020-12-23 17:09:30,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:09:30,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-23 17:09:30,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:30,369 INFO L225 Difference]: With dead ends: 92 [2020-12-23 17:09:30,369 INFO L226 Difference]: Without dead ends: 89 [2020-12-23 17:09:30,370 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 17:09:30,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-23 17:09:30,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-12-23 17:09:30,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-12-23 17:09:30,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 102 transitions. [2020-12-23 17:09:30,400 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 102 transitions. Word has length 8 [2020-12-23 17:09:30,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:30,401 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 102 transitions. [2020-12-23 17:09:30,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:09:30,401 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 102 transitions. [2020-12-23 17:09:30,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-23 17:09:30,402 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:30,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:30,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 17:09:30,403 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:30,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:30,407 INFO L82 PathProgramCache]: Analyzing trace with hash 875833349, now seen corresponding path program 1 times [2020-12-23 17:09:30,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:30,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114619953] [2020-12-23 17:09:30,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:30,578 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 17:09:30,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114619953] [2020-12-23 17:09:30,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:30,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 17:09:30,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178231480] [2020-12-23 17:09:30,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 17:09:30,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:30,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 17:09:30,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 17:09:30,586 INFO L87 Difference]: Start difference. First operand 89 states and 102 transitions. Second operand 4 states. [2020-12-23 17:09:30,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:30,746 INFO L93 Difference]: Finished difference Result 119 states and 134 transitions. [2020-12-23 17:09:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:09:30,746 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-23 17:09:30,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:30,749 INFO L225 Difference]: With dead ends: 119 [2020-12-23 17:09:30,750 INFO L226 Difference]: Without dead ends: 119 [2020-12-23 17:09:30,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 17:09:30,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-12-23 17:09:30,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 79. [2020-12-23 17:09:30,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-12-23 17:09:30,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2020-12-23 17:09:30,774 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 17 [2020-12-23 17:09:30,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:30,775 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2020-12-23 17:09:30,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 17:09:30,775 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2020-12-23 17:09:30,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 17:09:30,776 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:30,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:30,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 17:09:30,784 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:30,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:30,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1380999357, now seen corresponding path program 1 times [2020-12-23 17:09:30,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:30,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155472684] [2020-12-23 17:09:30,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:30,876 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 17:09:30,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155472684] [2020-12-23 17:09:30,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:30,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 17:09:30,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193031906] [2020-12-23 17:09:30,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:09:30,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:30,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:09:30,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:09:30,880 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 3 states. [2020-12-23 17:09:30,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:30,894 INFO L93 Difference]: Finished difference Result 112 states and 122 transitions. [2020-12-23 17:09:30,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:09:30,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-23 17:09:30,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:30,895 INFO L225 Difference]: With dead ends: 112 [2020-12-23 17:09:30,896 INFO L226 Difference]: Without dead ends: 112 [2020-12-23 17:09:30,896 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 17:09:30,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-12-23 17:09:30,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 102. [2020-12-23 17:09:30,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-12-23 17:09:30,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2020-12-23 17:09:30,901 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 18 [2020-12-23 17:09:30,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:30,902 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2020-12-23 17:09:30,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:09:30,902 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2020-12-23 17:09:30,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 17:09:30,903 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:30,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:30,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 17:09:30,904 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:30,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:30,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1381030048, now seen corresponding path program 1 times [2020-12-23 17:09:30,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:30,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915399331] [2020-12-23 17:09:30,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:30,982 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 17:09:30,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915399331] [2020-12-23 17:09:30,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:30,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:09:30,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899120092] [2020-12-23 17:09:30,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:09:30,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:30,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:09:30,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:09:30,988 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand 3 states. [2020-12-23 17:09:31,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:31,093 INFO L93 Difference]: Finished difference Result 98 states and 114 transitions. [2020-12-23 17:09:31,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:09:31,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-23 17:09:31,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:31,095 INFO L225 Difference]: With dead ends: 98 [2020-12-23 17:09:31,095 INFO L226 Difference]: Without dead ends: 98 [2020-12-23 17:09:31,096 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 17:09:31,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-12-23 17:09:31,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-12-23 17:09:31,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-12-23 17:09:31,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 114 transitions. [2020-12-23 17:09:31,103 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 114 transitions. Word has length 18 [2020-12-23 17:09:31,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:31,104 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 114 transitions. [2020-12-23 17:09:31,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:09:31,104 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 114 transitions. [2020-12-23 17:09:31,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 17:09:31,105 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:31,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:31,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 17:09:31,108 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:31,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:31,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1381030049, now seen corresponding path program 1 times [2020-12-23 17:09:31,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:31,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537514042] [2020-12-23 17:09:31,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:31,218 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 17:09:31,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537514042] [2020-12-23 17:09:31,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:31,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:09:31,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640042998] [2020-12-23 17:09:31,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:09:31,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:31,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:09:31,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:09:31,223 INFO L87 Difference]: Start difference. First operand 98 states and 114 transitions. Second operand 3 states. [2020-12-23 17:09:31,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:31,293 INFO L93 Difference]: Finished difference Result 94 states and 106 transitions. [2020-12-23 17:09:31,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:09:31,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-23 17:09:31,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:31,295 INFO L225 Difference]: With dead ends: 94 [2020-12-23 17:09:31,295 INFO L226 Difference]: Without dead ends: 94 [2020-12-23 17:09:31,296 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 17:09:31,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-12-23 17:09:31,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2020-12-23 17:09:31,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-23 17:09:31,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 106 transitions. [2020-12-23 17:09:31,301 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 106 transitions. Word has length 18 [2020-12-23 17:09:31,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:31,301 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 106 transitions. [2020-12-23 17:09:31,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:09:31,302 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 106 transitions. [2020-12-23 17:09:31,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 17:09:31,303 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:31,303 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:31,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 17:09:31,303 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:31,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:31,304 INFO L82 PathProgramCache]: Analyzing trace with hash 774470346, now seen corresponding path program 1 times [2020-12-23 17:09:31,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:31,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870605988] [2020-12-23 17:09:31,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:31,396 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 17:09:31,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870605988] [2020-12-23 17:09:31,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:31,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 17:09:31,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659078037] [2020-12-23 17:09:31,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 17:09:31,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:31,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 17:09:31,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:09:31,401 INFO L87 Difference]: Start difference. First operand 94 states and 106 transitions. Second operand 6 states. [2020-12-23 17:09:31,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:31,635 INFO L93 Difference]: Finished difference Result 168 states and 190 transitions. [2020-12-23 17:09:31,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 17:09:31,636 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-12-23 17:09:31,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:31,637 INFO L225 Difference]: With dead ends: 168 [2020-12-23 17:09:31,638 INFO L226 Difference]: Without dead ends: 168 [2020-12-23 17:09:31,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:09:31,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-12-23 17:09:31,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 112. [2020-12-23 17:09:31,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-12-23 17:09:31,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 130 transitions. [2020-12-23 17:09:31,643 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 130 transitions. Word has length 21 [2020-12-23 17:09:31,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:31,644 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 130 transitions. [2020-12-23 17:09:31,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 17:09:31,644 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 130 transitions. [2020-12-23 17:09:31,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 17:09:31,645 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:31,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:31,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 17:09:31,646 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:31,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:31,647 INFO L82 PathProgramCache]: Analyzing trace with hash 774470347, now seen corresponding path program 1 times [2020-12-23 17:09:31,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:31,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535956865] [2020-12-23 17:09:31,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:31,890 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 17:09:31,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535956865] [2020-12-23 17:09:31,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:31,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 17:09:31,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335020723] [2020-12-23 17:09:31,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 17:09:31,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:31,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 17:09:31,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:09:31,899 INFO L87 Difference]: Start difference. First operand 112 states and 130 transitions. Second operand 9 states. [2020-12-23 17:09:32,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:32,514 INFO L93 Difference]: Finished difference Result 225 states and 250 transitions. [2020-12-23 17:09:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 17:09:32,515 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-23 17:09:32,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:32,519 INFO L225 Difference]: With dead ends: 225 [2020-12-23 17:09:32,519 INFO L226 Difference]: Without dead ends: 225 [2020-12-23 17:09:32,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2020-12-23 17:09:32,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-12-23 17:09:32,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 112. [2020-12-23 17:09:32,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-12-23 17:09:32,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 128 transitions. [2020-12-23 17:09:32,526 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 128 transitions. Word has length 21 [2020-12-23 17:09:32,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:32,528 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 128 transitions. [2020-12-23 17:09:32,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 17:09:32,528 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 128 transitions. [2020-12-23 17:09:32,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 17:09:32,531 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:32,531 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:32,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 17:09:32,532 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:32,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:32,532 INFO L82 PathProgramCache]: Analyzing trace with hash -181494867, now seen corresponding path program 1 times [2020-12-23 17:09:32,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:32,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878253636] [2020-12-23 17:09:32,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:32,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878253636] [2020-12-23 17:09:32,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:32,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 17:09:32,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815723456] [2020-12-23 17:09:32,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 17:09:32,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:32,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 17:09:32,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 17:09:32,615 INFO L87 Difference]: Start difference. First operand 112 states and 128 transitions. Second operand 4 states. [2020-12-23 17:09:32,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:32,795 INFO L93 Difference]: Finished difference Result 146 states and 162 transitions. [2020-12-23 17:09:32,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:09:32,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-12-23 17:09:32,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:32,797 INFO L225 Difference]: With dead ends: 146 [2020-12-23 17:09:32,797 INFO L226 Difference]: Without dead ends: 146 [2020-12-23 17:09:32,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:09:32,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-12-23 17:09:32,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 114. [2020-12-23 17:09:32,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-12-23 17:09:32,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2020-12-23 17:09:32,802 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 22 [2020-12-23 17:09:32,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:32,802 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2020-12-23 17:09:32,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 17:09:32,802 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2020-12-23 17:09:32,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 17:09:32,803 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:32,803 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:32,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 17:09:32,804 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:32,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:32,805 INFO L82 PathProgramCache]: Analyzing trace with hash -181494866, now seen corresponding path program 1 times [2020-12-23 17:09:32,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:32,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886404297] [2020-12-23 17:09:32,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:32,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:32,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886404297] [2020-12-23 17:09:32,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:32,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 17:09:32,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647930319] [2020-12-23 17:09:32,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 17:09:32,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:32,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 17:09:32,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 17:09:32,862 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand 4 states. [2020-12-23 17:09:33,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:33,004 INFO L93 Difference]: Finished difference Result 187 states and 217 transitions. [2020-12-23 17:09:33,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:09:33,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-12-23 17:09:33,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:33,006 INFO L225 Difference]: With dead ends: 187 [2020-12-23 17:09:33,006 INFO L226 Difference]: Without dead ends: 187 [2020-12-23 17:09:33,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:09:33,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-12-23 17:09:33,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 138. [2020-12-23 17:09:33,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-12-23 17:09:33,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 165 transitions. [2020-12-23 17:09:33,011 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 165 transitions. Word has length 22 [2020-12-23 17:09:33,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:33,012 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 165 transitions. [2020-12-23 17:09:33,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 17:09:33,012 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 165 transitions. [2020-12-23 17:09:33,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-23 17:09:33,013 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:33,013 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:33,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 17:09:33,013 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:33,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:33,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1331373881, now seen corresponding path program 1 times [2020-12-23 17:09:33,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:33,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120022130] [2020-12-23 17:09:33,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:33,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:33,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120022130] [2020-12-23 17:09:33,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263991657] [2020-12-23 17:09:33,051 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 17:09:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:33,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 17:09:33,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:09:33,238 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:33,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:09:33,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-12-23 17:09:33,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597105610] [2020-12-23 17:09:33,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 17:09:33,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:33,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 17:09:33,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:09:33,242 INFO L87 Difference]: Start difference. First operand 138 states and 165 transitions. Second operand 4 states. [2020-12-23 17:09:33,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:33,271 INFO L93 Difference]: Finished difference Result 138 states and 163 transitions. [2020-12-23 17:09:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:09:33,272 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-12-23 17:09:33,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:33,273 INFO L225 Difference]: With dead ends: 138 [2020-12-23 17:09:33,273 INFO L226 Difference]: Without dead ends: 138 [2020-12-23 17:09:33,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:09:33,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-12-23 17:09:33,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-12-23 17:09:33,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-12-23 17:09:33,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 163 transitions. [2020-12-23 17:09:33,281 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 163 transitions. Word has length 23 [2020-12-23 17:09:33,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:33,281 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 163 transitions. [2020-12-23 17:09:33,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 17:09:33,282 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 163 transitions. [2020-12-23 17:09:33,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-23 17:09:33,283 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:33,283 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:33,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-23 17:09:33,498 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:33,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:33,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1677094766, now seen corresponding path program 1 times [2020-12-23 17:09:33,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:33,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212988236] [2020-12-23 17:09:33,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:33,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:33,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212988236] [2020-12-23 17:09:33,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:33,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 17:09:33,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80655977] [2020-12-23 17:09:33,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:09:33,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:33,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:09:33,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:09:33,586 INFO L87 Difference]: Start difference. First operand 138 states and 163 transitions. Second operand 5 states. [2020-12-23 17:09:33,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:33,845 INFO L93 Difference]: Finished difference Result 185 states and 211 transitions. [2020-12-23 17:09:33,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 17:09:33,845 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-12-23 17:09:33,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:33,848 INFO L225 Difference]: With dead ends: 185 [2020-12-23 17:09:33,848 INFO L226 Difference]: Without dead ends: 185 [2020-12-23 17:09:33,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:09:33,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-12-23 17:09:33,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 148. [2020-12-23 17:09:33,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-12-23 17:09:33,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 182 transitions. [2020-12-23 17:09:33,860 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 182 transitions. Word has length 24 [2020-12-23 17:09:33,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:33,861 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 182 transitions. [2020-12-23 17:09:33,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:09:33,861 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 182 transitions. [2020-12-23 17:09:33,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-23 17:09:33,867 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:33,867 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:33,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 17:09:33,868 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:33,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:33,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1677094767, now seen corresponding path program 1 times [2020-12-23 17:09:33,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:33,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659941495] [2020-12-23 17:09:33,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:33,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:33,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659941495] [2020-12-23 17:09:33,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:33,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 17:09:33,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133138648] [2020-12-23 17:09:33,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:09:33,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:33,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:09:33,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:09:33,972 INFO L87 Difference]: Start difference. First operand 148 states and 182 transitions. Second operand 5 states. [2020-12-23 17:09:34,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:34,259 INFO L93 Difference]: Finished difference Result 238 states and 293 transitions. [2020-12-23 17:09:34,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:09:34,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-12-23 17:09:34,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:34,261 INFO L225 Difference]: With dead ends: 238 [2020-12-23 17:09:34,262 INFO L226 Difference]: Without dead ends: 238 [2020-12-23 17:09:34,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:09:34,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-12-23 17:09:34,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 166. [2020-12-23 17:09:34,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-12-23 17:09:34,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 215 transitions. [2020-12-23 17:09:34,269 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 215 transitions. Word has length 24 [2020-12-23 17:09:34,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:34,270 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 215 transitions. [2020-12-23 17:09:34,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:09:34,270 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 215 transitions. [2020-12-23 17:09:34,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-23 17:09:34,271 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:34,271 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:34,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 17:09:34,271 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:34,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:34,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1024288817, now seen corresponding path program 1 times [2020-12-23 17:09:34,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:34,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855998825] [2020-12-23 17:09:34,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:34,404 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:34,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855998825] [2020-12-23 17:09:34,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:34,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 17:09:34,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663571048] [2020-12-23 17:09:34,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 17:09:34,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:34,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 17:09:34,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:09:34,407 INFO L87 Difference]: Start difference. First operand 166 states and 215 transitions. Second operand 8 states. [2020-12-23 17:09:35,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:35,000 INFO L93 Difference]: Finished difference Result 263 states and 324 transitions. [2020-12-23 17:09:35,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 17:09:35,001 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-12-23 17:09:35,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:35,003 INFO L225 Difference]: With dead ends: 263 [2020-12-23 17:09:35,004 INFO L226 Difference]: Without dead ends: 263 [2020-12-23 17:09:35,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2020-12-23 17:09:35,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-12-23 17:09:35,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 176. [2020-12-23 17:09:35,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-12-23 17:09:35,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 229 transitions. [2020-12-23 17:09:35,017 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 229 transitions. Word has length 27 [2020-12-23 17:09:35,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:35,018 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 229 transitions. [2020-12-23 17:09:35,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 17:09:35,018 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 229 transitions. [2020-12-23 17:09:35,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-23 17:09:35,019 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:35,019 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:35,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 17:09:35,022 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:35,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:35,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1024288816, now seen corresponding path program 1 times [2020-12-23 17:09:35,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:35,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323180648] [2020-12-23 17:09:35,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:35,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:35,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323180648] [2020-12-23 17:09:35,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:35,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 17:09:35,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675964552] [2020-12-23 17:09:35,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 17:09:35,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:35,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 17:09:35,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:09:35,192 INFO L87 Difference]: Start difference. First operand 176 states and 229 transitions. Second operand 7 states. [2020-12-23 17:09:35,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:35,574 INFO L93 Difference]: Finished difference Result 238 states and 303 transitions. [2020-12-23 17:09:35,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 17:09:35,575 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-12-23 17:09:35,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:35,577 INFO L225 Difference]: With dead ends: 238 [2020-12-23 17:09:35,577 INFO L226 Difference]: Without dead ends: 238 [2020-12-23 17:09:35,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-12-23 17:09:35,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-12-23 17:09:35,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 175. [2020-12-23 17:09:35,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-12-23 17:09:35,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 226 transitions. [2020-12-23 17:09:35,593 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 226 transitions. Word has length 27 [2020-12-23 17:09:35,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:35,594 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 226 transitions. [2020-12-23 17:09:35,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 17:09:35,594 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 226 transitions. [2020-12-23 17:09:35,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-23 17:09:35,596 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:35,596 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:35,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 17:09:35,597 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:35,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:35,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1688183339, now seen corresponding path program 1 times [2020-12-23 17:09:35,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:35,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708929937] [2020-12-23 17:09:35,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:35,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:35,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708929937] [2020-12-23 17:09:35,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:35,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 17:09:35,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187500929] [2020-12-23 17:09:35,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:09:35,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:35,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:09:35,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:09:35,676 INFO L87 Difference]: Start difference. First operand 175 states and 226 transitions. Second operand 5 states. [2020-12-23 17:09:35,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:35,871 INFO L93 Difference]: Finished difference Result 205 states and 261 transitions. [2020-12-23 17:09:35,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:09:35,872 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-12-23 17:09:35,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:35,874 INFO L225 Difference]: With dead ends: 205 [2020-12-23 17:09:35,874 INFO L226 Difference]: Without dead ends: 205 [2020-12-23 17:09:35,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:09:35,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-12-23 17:09:35,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 193. [2020-12-23 17:09:35,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-12-23 17:09:35,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 261 transitions. [2020-12-23 17:09:35,880 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 261 transitions. Word has length 28 [2020-12-23 17:09:35,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:35,880 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 261 transitions. [2020-12-23 17:09:35,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:09:35,880 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 261 transitions. [2020-12-23 17:09:35,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-23 17:09:35,881 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:35,881 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:35,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 17:09:35,882 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:35,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:35,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1397370251, now seen corresponding path program 1 times [2020-12-23 17:09:35,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:35,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945967277] [2020-12-23 17:09:35,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:35,934 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:35,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945967277] [2020-12-23 17:09:35,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133995448] [2020-12-23 17:09:35,935 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 17:09:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:36,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 17:09:36,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:09:36,077 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:36,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:09:36,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2020-12-23 17:09:36,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315900995] [2020-12-23 17:09:36,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:09:36,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:36,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:09:36,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:09:36,080 INFO L87 Difference]: Start difference. First operand 193 states and 261 transitions. Second operand 5 states. [2020-12-23 17:09:36,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:36,126 INFO L93 Difference]: Finished difference Result 247 states and 325 transitions. [2020-12-23 17:09:36,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:09:36,127 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-12-23 17:09:36,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:36,129 INFO L225 Difference]: With dead ends: 247 [2020-12-23 17:09:36,129 INFO L226 Difference]: Without dead ends: 247 [2020-12-23 17:09:36,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 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 17:09:36,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2020-12-23 17:09:36,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 231. [2020-12-23 17:09:36,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-12-23 17:09:36,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 323 transitions. [2020-12-23 17:09:36,139 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 323 transitions. Word has length 31 [2020-12-23 17:09:36,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:36,139 INFO L481 AbstractCegarLoop]: Abstraction has 231 states and 323 transitions. [2020-12-23 17:09:36,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:09:36,139 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 323 transitions. [2020-12-23 17:09:36,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-23 17:09:36,140 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:36,140 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:36,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:09:36,356 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:36,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:36,356 INFO L82 PathProgramCache]: Analyzing trace with hash 368804521, now seen corresponding path program 1 times [2020-12-23 17:09:36,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:36,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417986263] [2020-12-23 17:09:36,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:36,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417986263] [2020-12-23 17:09:36,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911674699] [2020-12-23 17:09:36,505 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 17:09:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:36,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-23 17:09:36,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:09:36,768 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:36,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:09:36,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2020-12-23 17:09:36,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378324074] [2020-12-23 17:09:36,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:09:36,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:36,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:09:36,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:09:36,770 INFO L87 Difference]: Start difference. First operand 231 states and 323 transitions. Second operand 10 states. [2020-12-23 17:09:37,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:37,201 INFO L93 Difference]: Finished difference Result 236 states and 327 transitions. [2020-12-23 17:09:37,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 17:09:37,203 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-12-23 17:09:37,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:37,204 INFO L225 Difference]: With dead ends: 236 [2020-12-23 17:09:37,205 INFO L226 Difference]: Without dead ends: 224 [2020-12-23 17:09:37,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-12-23 17:09:37,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-12-23 17:09:37,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-12-23 17:09:37,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-12-23 17:09:37,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 315 transitions. [2020-12-23 17:09:37,211 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 315 transitions. Word has length 32 [2020-12-23 17:09:37,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:37,212 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 315 transitions. [2020-12-23 17:09:37,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:09:37,212 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 315 transitions. [2020-12-23 17:09:37,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-23 17:09:37,212 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:37,212 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-12-23 17:09:37,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:09:37,428 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:37,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:37,429 INFO L82 PathProgramCache]: Analyzing trace with hash -917642468, now seen corresponding path program 1 times [2020-12-23 17:09:37,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:37,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945165390] [2020-12-23 17:09:37,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:37,544 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:37,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945165390] [2020-12-23 17:09:37,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300942237] [2020-12-23 17:09:37,546 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 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 17:09:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:37,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 17:09:37,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:09:37,688 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 17:09:37,690 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:37,693 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:37,694 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:37,694 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:09:37,738 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:37,738 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 17:09:37,745 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:37,762 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-23 17:09:37,781 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 17:09:37,782 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-12-23 17:09:37,809 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:37,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:09:37,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 4 [2020-12-23 17:09:37,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207209956] [2020-12-23 17:09:37,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:09:37,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:37,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:09:37,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:09:37,814 INFO L87 Difference]: Start difference. First operand 224 states and 315 transitions. Second operand 5 states. [2020-12-23 17:09:37,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:37,996 INFO L93 Difference]: Finished difference Result 245 states and 332 transitions. [2020-12-23 17:09:37,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:09:37,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-12-23 17:09:37,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:37,999 INFO L225 Difference]: With dead ends: 245 [2020-12-23 17:09:37,999 INFO L226 Difference]: Without dead ends: 245 [2020-12-23 17:09:38,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 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 17:09:38,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-12-23 17:09:38,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 223. [2020-12-23 17:09:38,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-12-23 17:09:38,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 313 transitions. [2020-12-23 17:09:38,010 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 313 transitions. Word has length 33 [2020-12-23 17:09:38,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:38,010 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 313 transitions. [2020-12-23 17:09:38,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:09:38,011 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 313 transitions. [2020-12-23 17:09:38,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-23 17:09:38,011 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:38,011 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-12-23 17:09:38,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:09:38,226 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:38,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:38,228 INFO L82 PathProgramCache]: Analyzing trace with hash -917642467, now seen corresponding path program 1 times [2020-12-23 17:09:38,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:38,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147303106] [2020-12-23 17:09:38,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:38,314 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:38,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147303106] [2020-12-23 17:09:38,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818580824] [2020-12-23 17:09:38,318 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 17:09:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:38,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-23 17:09:38,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:09:38,461 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 17:09:38,462 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:38,468 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:38,469 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:38,469 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-23 17:09:38,545 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:38,545 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 17:09:38,549 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:38,571 INFO L625 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2020-12-23 17:09:38,573 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:38,573 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2020-12-23 17:09:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:38,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:09:38,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6] total 6 [2020-12-23 17:09:38,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104749625] [2020-12-23 17:09:38,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 17:09:38,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:38,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 17:09:38,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:09:38,683 INFO L87 Difference]: Start difference. First operand 223 states and 313 transitions. Second operand 7 states. [2020-12-23 17:09:38,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:38,876 INFO L93 Difference]: Finished difference Result 308 states and 431 transitions. [2020-12-23 17:09:38,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:09:38,877 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-12-23 17:09:38,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:38,879 INFO L225 Difference]: With dead ends: 308 [2020-12-23 17:09:38,879 INFO L226 Difference]: Without dead ends: 308 [2020-12-23 17:09:38,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:09:38,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-12-23 17:09:38,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 242. [2020-12-23 17:09:38,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-12-23 17:09:38,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 337 transitions. [2020-12-23 17:09:38,888 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 337 transitions. Word has length 33 [2020-12-23 17:09:38,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:38,888 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 337 transitions. [2020-12-23 17:09:38,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 17:09:38,889 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 337 transitions. [2020-12-23 17:09:38,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-23 17:09:38,889 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:38,890 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:39,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-12-23 17:09:39,105 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:39,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:39,106 INFO L82 PathProgramCache]: Analyzing trace with hash -499896363, now seen corresponding path program 1 times [2020-12-23 17:09:39,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:39,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930298210] [2020-12-23 17:09:39,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:39,133 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:09:39,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1576412238] [2020-12-23 17:09:39,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:09:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:39,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 17:09:39,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:09:39,266 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 17:09:39,267 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:39,269 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:39,270 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:39,270 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:09:39,317 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:09:39,318 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:39,324 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:39,326 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 17:09:39,326 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:9 [2020-12-23 17:09:39,368 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:39,369 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 16 treesize of output 44 [2020-12-23 17:09:39,371 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:39,389 INFO L625 ElimStorePlain]: treesize reduction 26, result has 36.6 percent of original size [2020-12-23 17:09:39,391 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:39,391 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2020-12-23 17:09:39,480 INFO L348 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2020-12-23 17:09:39,481 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 20 [2020-12-23 17:09:39,483 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:39,490 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:39,494 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 17:09:39,494 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:26 [2020-12-23 17:09:39,577 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:39,578 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 24 [2020-12-23 17:09:39,580 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:39,584 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:39,586 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:09:39,586 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:33, output treesize:11 [2020-12-23 17:09:39,607 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:39,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930298210] [2020-12-23 17:09:39,608 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:09:39,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576412238] [2020-12-23 17:09:39,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:09:39,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-23 17:09:39,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739210073] [2020-12-23 17:09:39,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 17:09:39,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:39,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 17:09:39,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:09:39,611 INFO L87 Difference]: Start difference. First operand 242 states and 337 transitions. Second operand 8 states. [2020-12-23 17:09:39,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:39,960 INFO L93 Difference]: Finished difference Result 261 states and 354 transitions. [2020-12-23 17:09:39,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 17:09:39,961 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2020-12-23 17:09:39,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:39,963 INFO L225 Difference]: With dead ends: 261 [2020-12-23 17:09:39,963 INFO L226 Difference]: Without dead ends: 261 [2020-12-23 17:09:39,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-12-23 17:09:39,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-12-23 17:09:39,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 241. [2020-12-23 17:09:39,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-12-23 17:09:39,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 335 transitions. [2020-12-23 17:09:39,971 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 335 transitions. Word has length 35 [2020-12-23 17:09:39,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:39,971 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 335 transitions. [2020-12-23 17:09:39,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 17:09:39,971 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 335 transitions. [2020-12-23 17:09:39,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-23 17:09:39,972 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:39,972 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:40,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:09:40,188 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:40,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:40,189 INFO L82 PathProgramCache]: Analyzing trace with hash -499896362, now seen corresponding path program 1 times [2020-12-23 17:09:40,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:40,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129878681] [2020-12-23 17:09:40,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:40,204 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:09:40,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1158106283] [2020-12-23 17:09:40,205 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 17:09:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:40,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-23 17:09:40,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:09:40,344 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 17:09:40,345 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:40,347 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:40,348 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:40,349 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:09:40,419 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:09:40,420 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:40,432 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:40,438 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:09:40,439 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:40,451 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:40,453 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:40,453 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:38, output treesize:32 [2020-12-23 17:09:40,497 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:40,498 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 31 treesize of output 53 [2020-12-23 17:09:40,502 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:40,525 INFO L625 ElimStorePlain]: treesize reduction 26, result has 52.7 percent of original size [2020-12-23 17:09:40,526 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:40,527 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:29 [2020-12-23 17:09:40,605 INFO L348 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2020-12-23 17:09:40,605 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 20 [2020-12-23 17:09:40,607 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:40,622 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:40,658 INFO L348 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2020-12-23 17:09:40,658 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 21 [2020-12-23 17:09:40,660 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:40,672 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:40,675 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 17:09:40,676 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:59, output treesize:51 [2020-12-23 17:09:40,753 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:40,754 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 24 [2020-12-23 17:09:40,756 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:40,770 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:40,781 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:40,781 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 33 treesize of output 25 [2020-12-23 17:09:40,784 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:40,793 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:40,795 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:09:40,796 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:65, output treesize:17 [2020-12-23 17:09:40,835 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:40,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129878681] [2020-12-23 17:09:40,836 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:09:40,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158106283] [2020-12-23 17:09:40,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:09:40,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 17:09:40,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769160635] [2020-12-23 17:09:40,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:09:40,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:40,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:09:40,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:09:40,839 INFO L87 Difference]: Start difference. First operand 241 states and 335 transitions. Second operand 10 states. [2020-12-23 17:09:41,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:41,524 INFO L93 Difference]: Finished difference Result 317 states and 440 transitions. [2020-12-23 17:09:41,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 17:09:41,525 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2020-12-23 17:09:41,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:41,527 INFO L225 Difference]: With dead ends: 317 [2020-12-23 17:09:41,527 INFO L226 Difference]: Without dead ends: 317 [2020-12-23 17:09:41,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2020-12-23 17:09:41,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-12-23 17:09:41,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 228. [2020-12-23 17:09:41,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-12-23 17:09:41,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 321 transitions. [2020-12-23 17:09:41,536 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 321 transitions. Word has length 35 [2020-12-23 17:09:41,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:41,536 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 321 transitions. [2020-12-23 17:09:41,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:09:41,537 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 321 transitions. [2020-12-23 17:09:41,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-23 17:09:41,537 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:41,537 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:41,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-12-23 17:09:41,752 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:41,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:41,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1032157181, now seen corresponding path program 1 times [2020-12-23 17:09:41,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:41,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032581994] [2020-12-23 17:09:41,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:41,768 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:09:41,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235005778] [2020-12-23 17:09:41,768 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 17:09:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:41,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-23 17:09:41,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:09:41,906 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:09:41,907 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:41,917 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:41,918 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:41,918 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2020-12-23 17:09:41,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:41,960 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 17:09:41,963 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:41,975 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:41,977 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:41,977 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2020-12-23 17:09:42,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:42,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:42,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:42,024 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-12-23 17:09:42,026 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:42,055 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:42,057 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:42,057 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:32 [2020-12-23 17:09:42,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:42,082 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 14 treesize of output 16 [2020-12-23 17:09:42,085 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:42,103 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:42,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:42,110 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 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 17:09:42,113 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:42,125 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:42,126 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:42,127 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:32 [2020-12-23 17:09:42,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:42,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:42,195 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 32 treesize of output 30 [2020-12-23 17:09:42,198 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:42,212 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:42,214 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:42,214 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:39 [2020-12-23 17:09:42,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:42,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:42,265 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2020-12-23 17:09:42,268 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:42,275 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:42,276 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 17:09:42,277 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:39, output treesize:16 [2020-12-23 17:09:42,395 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:42,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032581994] [2020-12-23 17:09:42,396 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:09:42,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235005778] [2020-12-23 17:09:42,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:09:42,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-12-23 17:09:42,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151234844] [2020-12-23 17:09:42,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 17:09:42,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:42,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 17:09:42,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:09:42,399 INFO L87 Difference]: Start difference. First operand 228 states and 321 transitions. Second operand 11 states. [2020-12-23 17:09:43,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:43,266 INFO L93 Difference]: Finished difference Result 344 states and 458 transitions. [2020-12-23 17:09:43,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 17:09:43,267 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36 [2020-12-23 17:09:43,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:43,270 INFO L225 Difference]: With dead ends: 344 [2020-12-23 17:09:43,270 INFO L226 Difference]: Without dead ends: 344 [2020-12-23 17:09:43,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-12-23 17:09:43,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-12-23 17:09:43,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 233. [2020-12-23 17:09:43,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-12-23 17:09:43,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 327 transitions. [2020-12-23 17:09:43,280 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 327 transitions. Word has length 36 [2020-12-23 17:09:43,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:43,281 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 327 transitions. [2020-12-23 17:09:43,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 17:09:43,281 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 327 transitions. [2020-12-23 17:09:43,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-23 17:09:43,281 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:43,282 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:43,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-12-23 17:09:43,497 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:43,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:43,497 INFO L82 PathProgramCache]: Analyzing trace with hash 234396292, now seen corresponding path program 1 times [2020-12-23 17:09:43,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:43,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770912259] [2020-12-23 17:09:43,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:43,510 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:09:43,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2116259356] [2020-12-23 17:09:43,511 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 17:09:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:43,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-23 17:09:43,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:09:43,723 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-23 17:09:43,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770912259] [2020-12-23 17:09:43,724 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:09:43,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116259356] [2020-12-23 17:09:43,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:43,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 17:09:43,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699717098] [2020-12-23 17:09:43,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 17:09:43,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:43,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 17:09:43,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:09:43,727 INFO L87 Difference]: Start difference. First operand 233 states and 327 transitions. Second operand 6 states. [2020-12-23 17:09:44,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:44,001 INFO L93 Difference]: Finished difference Result 249 states and 332 transitions. [2020-12-23 17:09:44,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 17:09:44,002 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-12-23 17:09:44,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:44,006 INFO L225 Difference]: With dead ends: 249 [2020-12-23 17:09:44,007 INFO L226 Difference]: Without dead ends: 249 [2020-12-23 17:09:44,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:09:44,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-12-23 17:09:44,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 233. [2020-12-23 17:09:44,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-12-23 17:09:44,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 325 transitions. [2020-12-23 17:09:44,015 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 325 transitions. Word has length 38 [2020-12-23 17:09:44,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:44,016 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 325 transitions. [2020-12-23 17:09:44,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 17:09:44,016 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 325 transitions. [2020-12-23 17:09:44,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-23 17:09:44,017 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:44,017 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:44,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-12-23 17:09:44,232 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:44,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:44,233 INFO L82 PathProgramCache]: Analyzing trace with hash -716826511, now seen corresponding path program 1 times [2020-12-23 17:09:44,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:44,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800317979] [2020-12-23 17:09:44,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:44,247 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:09:44,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1226581077] [2020-12-23 17:09:44,248 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 17:09:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:44,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 17:09:44,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:09:44,424 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-23 17:09:44,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800317979] [2020-12-23 17:09:44,424 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:09:44,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226581077] [2020-12-23 17:09:44,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:44,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 17:09:44,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683174434] [2020-12-23 17:09:44,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 17:09:44,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:44,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 17:09:44,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:09:44,427 INFO L87 Difference]: Start difference. First operand 233 states and 325 transitions. Second operand 6 states. [2020-12-23 17:09:44,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:44,582 INFO L93 Difference]: Finished difference Result 241 states and 321 transitions. [2020-12-23 17:09:44,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 17:09:44,583 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-12-23 17:09:44,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:44,585 INFO L225 Difference]: With dead ends: 241 [2020-12-23 17:09:44,585 INFO L226 Difference]: Without dead ends: 241 [2020-12-23 17:09:44,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:09:44,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-12-23 17:09:44,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 213. [2020-12-23 17:09:44,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-12-23 17:09:44,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 286 transitions. [2020-12-23 17:09:44,592 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 286 transitions. Word has length 41 [2020-12-23 17:09:44,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:44,592 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 286 transitions. [2020-12-23 17:09:44,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 17:09:44,593 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 286 transitions. [2020-12-23 17:09:44,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-23 17:09:44,593 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:44,594 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:44,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-12-23 17:09:44,808 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:44,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:44,809 INFO L82 PathProgramCache]: Analyzing trace with hash -716826470, now seen corresponding path program 1 times [2020-12-23 17:09:44,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:44,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662489051] [2020-12-23 17:09:44,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:44,824 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:09:44,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1788360222] [2020-12-23 17:09:44,824 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 17:09:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:44,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 20 conjunts are in the unsatisfiable core [2020-12-23 17:09:44,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:09:44,950 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 17:09:44,951 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:44,956 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:44,957 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:44,957 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-23 17:09:44,986 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:09:44,987 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:44,993 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:44,995 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 17:09:44,995 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2020-12-23 17:09:45,105 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:09:45,108 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:45,108 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 17 treesize of output 12 [2020-12-23 17:09:45,110 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:45,119 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:45,146 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 17:09:45,146 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:26, output treesize:5 [2020-12-23 17:09:45,179 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:45,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662489051] [2020-12-23 17:09:45,180 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:09:45,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788360222] [2020-12-23 17:09:45,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:45,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 17:09:45,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360898088] [2020-12-23 17:09:45,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 17:09:45,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:45,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 17:09:45,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:09:45,182 INFO L87 Difference]: Start difference. First operand 213 states and 286 transitions. Second operand 9 states. [2020-12-23 17:09:45,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:45,818 INFO L93 Difference]: Finished difference Result 266 states and 342 transitions. [2020-12-23 17:09:45,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 17:09:45,819 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2020-12-23 17:09:45,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:45,821 INFO L225 Difference]: With dead ends: 266 [2020-12-23 17:09:45,822 INFO L226 Difference]: Without dead ends: 266 [2020-12-23 17:09:45,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2020-12-23 17:09:45,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-12-23 17:09:45,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 222. [2020-12-23 17:09:45,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-12-23 17:09:45,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 299 transitions. [2020-12-23 17:09:45,830 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 299 transitions. Word has length 41 [2020-12-23 17:09:45,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:45,830 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 299 transitions. [2020-12-23 17:09:45,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 17:09:45,830 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 299 transitions. [2020-12-23 17:09:45,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-23 17:09:45,831 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:45,831 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:46,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-12-23 17:09:46,043 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:46,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:46,044 INFO L82 PathProgramCache]: Analyzing trace with hash -716826469, now seen corresponding path program 1 times [2020-12-23 17:09:46,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:46,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879733405] [2020-12-23 17:09:46,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:46,059 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:09:46,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1805311585] [2020-12-23 17:09:46,060 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 17:09:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:46,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 31 conjunts are in the unsatisfiable core [2020-12-23 17:09:46,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:09:46,193 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 17:09:46,194 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:46,203 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:46,204 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:46,205 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2020-12-23 17:09:46,263 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:09:46,264 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:46,283 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:46,290 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:09:46,291 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:46,309 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:46,311 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:46,311 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:30 [2020-12-23 17:09:46,419 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 17 treesize of output 9 [2020-12-23 17:09:46,421 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:46,438 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:46,443 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 22 treesize of output 10 [2020-12-23 17:09:46,444 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:46,455 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:46,457 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:46,457 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:12 [2020-12-23 17:09:46,518 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:46,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879733405] [2020-12-23 17:09:46,518 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:09:46,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805311585] [2020-12-23 17:09:46,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:46,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-23 17:09:46,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597535613] [2020-12-23 17:09:46,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 17:09:46,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:46,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 17:09:46,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:09:46,521 INFO L87 Difference]: Start difference. First operand 222 states and 299 transitions. Second operand 11 states. [2020-12-23 17:09:47,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:47,447 INFO L93 Difference]: Finished difference Result 322 states and 414 transitions. [2020-12-23 17:09:47,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 17:09:47,448 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2020-12-23 17:09:47,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:47,450 INFO L225 Difference]: With dead ends: 322 [2020-12-23 17:09:47,451 INFO L226 Difference]: Without dead ends: 322 [2020-12-23 17:09:47,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2020-12-23 17:09:47,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-12-23 17:09:47,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 222. [2020-12-23 17:09:47,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-12-23 17:09:47,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 297 transitions. [2020-12-23 17:09:47,459 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 297 transitions. Word has length 41 [2020-12-23 17:09:47,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:47,459 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 297 transitions. [2020-12-23 17:09:47,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 17:09:47,460 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 297 transitions. [2020-12-23 17:09:47,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-23 17:09:47,460 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:47,461 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:47,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:09:47,675 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:47,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:47,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1675466949, now seen corresponding path program 1 times [2020-12-23 17:09:47,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:47,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828381850] [2020-12-23 17:09:47,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:47,691 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:09:47,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [320653647] [2020-12-23 17:09:47,691 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 17:09:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:47,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 17:09:47,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:09:47,836 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 7 treesize of output 3 [2020-12-23 17:09:47,837 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:47,839 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:47,839 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 17:09:47,840 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:7, output treesize:1 [2020-12-23 17:09:47,853 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 17:09:47,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828381850] [2020-12-23 17:09:47,854 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:09:47,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320653647] [2020-12-23 17:09:47,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:47,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 17:09:47,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904584763] [2020-12-23 17:09:47,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 17:09:47,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:47,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 17:09:47,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 17:09:47,856 INFO L87 Difference]: Start difference. First operand 222 states and 297 transitions. Second operand 4 states. [2020-12-23 17:09:47,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:47,966 INFO L93 Difference]: Finished difference Result 244 states and 320 transitions. [2020-12-23 17:09:47,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:09:47,967 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-12-23 17:09:47,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:47,968 INFO L225 Difference]: With dead ends: 244 [2020-12-23 17:09:47,969 INFO L226 Difference]: Without dead ends: 244 [2020-12-23 17:09:47,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:09:47,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-12-23 17:09:47,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 220. [2020-12-23 17:09:47,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-12-23 17:09:47,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 288 transitions. [2020-12-23 17:09:47,976 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 288 transitions. Word has length 43 [2020-12-23 17:09:47,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:47,976 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 288 transitions. [2020-12-23 17:09:47,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 17:09:47,976 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 288 transitions. [2020-12-23 17:09:47,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-23 17:09:47,977 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:47,977 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:48,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2020-12-23 17:09:48,193 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:48,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:48,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1675466948, now seen corresponding path program 1 times [2020-12-23 17:09:48,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:48,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918077328] [2020-12-23 17:09:48,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:48,209 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:09:48,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [780059739] [2020-12-23 17:09:48,210 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 17:09:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:48,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 33 conjunts are in the unsatisfiable core [2020-12-23 17:09:48,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:09:48,428 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:09:48,429 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:48,449 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:48,455 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 17:09:48,457 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:48,498 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:48,509 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:48,509 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:42, output treesize:36 [2020-12-23 17:09:48,648 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 23 treesize of output 15 [2020-12-23 17:09:48,649 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:48,668 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:48,671 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 33 treesize of output 17 [2020-12-23 17:09:48,673 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:48,683 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:48,686 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:48,686 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:50, output treesize:14 [2020-12-23 17:09:48,825 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:48,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918077328] [2020-12-23 17:09:48,825 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:09:48,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780059739] [2020-12-23 17:09:48,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:48,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-23 17:09:48,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505459160] [2020-12-23 17:09:48,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-23 17:09:48,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:48,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-23 17:09:48,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-12-23 17:09:48,827 INFO L87 Difference]: Start difference. First operand 220 states and 288 transitions. Second operand 14 states. [2020-12-23 17:09:50,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:50,891 INFO L93 Difference]: Finished difference Result 379 states and 471 transitions. [2020-12-23 17:09:50,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-23 17:09:50,893 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2020-12-23 17:09:50,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:50,896 INFO L225 Difference]: With dead ends: 379 [2020-12-23 17:09:50,896 INFO L226 Difference]: Without dead ends: 379 [2020-12-23 17:09:50,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=191, Invalid=565, Unknown=0, NotChecked=0, Total=756 [2020-12-23 17:09:50,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-12-23 17:09:50,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 228. [2020-12-23 17:09:50,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-12-23 17:09:50,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 298 transitions. [2020-12-23 17:09:50,910 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 298 transitions. Word has length 43 [2020-12-23 17:09:50,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:50,910 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 298 transitions. [2020-12-23 17:09:50,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-23 17:09:50,910 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 298 transitions. [2020-12-23 17:09:50,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-23 17:09:50,911 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:50,911 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:51,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:09:51,125 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:51,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:51,126 INFO L82 PathProgramCache]: Analyzing trace with hash 829486443, now seen corresponding path program 1 times [2020-12-23 17:09:51,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:51,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21611646] [2020-12-23 17:09:51,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:51,686 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:51,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21611646] [2020-12-23 17:09:51,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574458240] [2020-12-23 17:09:51,687 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 17:09:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:51,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 36 conjunts are in the unsatisfiable core [2020-12-23 17:09:51,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:09:51,816 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 17:09:51,819 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:51,824 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:51,825 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:51,825 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-23 17:09:51,861 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:09:51,862 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:51,873 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:51,874 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:51,875 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2020-12-23 17:09:51,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:51,917 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 17:09:51,920 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:51,932 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:51,933 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:51,933 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2020-12-23 17:09:51,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:51,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:51,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:51,990 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-12-23 17:09:51,992 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:52,005 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:52,006 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:52,007 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:28 [2020-12-23 17:09:52,125 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:52,125 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 17:09:52,128 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:09:52,138 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:52,160 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:52,161 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:52,161 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:40 [2020-12-23 17:09:52,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:52,242 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 17:09:52,253 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:52,275 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:52,277 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:52,278 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:49 [2020-12-23 17:09:52,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:52,365 INFO L348 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2020-12-23 17:09:52,365 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 17:09:52,368 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:52,407 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:52,408 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:52,408 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:58 [2020-12-23 17:09:52,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:52,514 INFO L348 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2020-12-23 17:09:52,515 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 46 treesize of output 54 [2020-12-23 17:09:52,518 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:52,555 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:52,556 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:52,557 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2020-12-23 17:09:52,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:52,700 INFO L348 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2020-12-23 17:09:52,701 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 66 [2020-12-23 17:09:52,704 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:52,750 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:52,751 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:52,752 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:78, output treesize:74 [2020-12-23 17:09:52,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:52,941 INFO L348 Elim1Store]: treesize reduction 188, result has 15.7 percent of original size [2020-12-23 17:09:52,941 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 69 [2020-12-23 17:09:52,945 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:52,989 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:52,990 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:09:52,991 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:74 [2020-12-23 17:09:53,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:53,130 INFO L348 Elim1Store]: treesize reduction 66, result has 48.8 percent of original size [2020-12-23 17:09:53,131 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 64 treesize of output 124 [2020-12-23 17:09:53,139 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:53,275 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-23 17:09:53,277 INFO L625 ElimStorePlain]: treesize reduction 30, result has 76.0 percent of original size [2020-12-23 17:09:53,278 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:09:53,279 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:09:53,281 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 17:09:53,282 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:87, output treesize:95 [2020-12-23 17:09:53,288 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:09:53,288 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:09:53,424 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:09:53,428 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 17:09:53,432 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:09:53,441 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 17:09:53,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:53,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:53,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:53,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:53,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:53,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:53,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:53,999 WARN L197 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 91 [2020-12-23 17:09:54,000 INFO L348 Elim1Store]: treesize reduction 22, result has 93.2 percent of original size [2020-12-23 17:09:54,001 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 133 treesize of output 364 [2020-12-23 17:09:54,015 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[17, 3, 2, 1] term [2020-12-23 17:09:54,015 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-23 17:09:54,019 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:54,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:54,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:54,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:54,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:54,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:54,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:54,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:54,249 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-12-23 17:09:54,250 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:54,251 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 124 treesize of output 256 [2020-12-23 17:09:54,258 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[14, 3, 2, 1] term [2020-12-23 17:09:54,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:09:54,262 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:54,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:54,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:54,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:54,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:54,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:54,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:54,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:54,438 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-12-23 17:09:54,439 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:54,440 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 106 treesize of output 256 [2020-12-23 17:09:54,456 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[14, 3, 2, 1] term [2020-12-23 17:09:54,456 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:09:54,459 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:54,573 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-23 17:09:54,573 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:09:54,580 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2020-12-23 17:09:54,581 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:397, output treesize:326 [2020-12-23 17:09:54,818 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-12-23 17:09:55,159 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-12-23 17:09:55,206 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:09:55,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:55,434 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2020-12-23 17:09:55,436 INFO L348 Elim1Store]: treesize reduction 66, result has 63.9 percent of original size [2020-12-23 17:09:55,436 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 7 new quantified variables, introduced 14 case distinctions, treesize of input 92 treesize of output 147 [2020-12-23 17:09:55,441 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:09:55,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:55,760 WARN L197 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 79 [2020-12-23 17:09:55,761 INFO L348 Elim1Store]: treesize reduction 66, result has 75.3 percent of original size [2020-12-23 17:09:55,762 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 115 treesize of output 234 [2020-12-23 17:09:55,771 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-23 17:09:55,772 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-23 17:09:55,773 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-23 17:09:55,775 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-23 17:09:55,776 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-23 17:09:55,777 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:09:55,778 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 17:09:55,779 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:09:55,785 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:09:55,787 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:09:55,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:09:55,957 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2020-12-23 17:09:55,958 INFO L348 Elim1Store]: treesize reduction 66, result has 63.9 percent of original size [2020-12-23 17:09:55,959 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 7 new quantified variables, introduced 14 case distinctions, treesize of input 106 treesize of output 147 [2020-12-23 17:09:55,966 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-23 17:09:55,967 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-23 17:09:55,969 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-23 17:09:55,970 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 17:09:55,970 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 17:09:55,977 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:09:56,094 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-12-23 17:09:56,095 INFO L625 ElimStorePlain]: treesize reduction 4, result has 95.3 percent of original size [2020-12-23 17:09:56,111 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2020-12-23 17:09:56,111 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:347, output treesize:46 [2020-12-23 17:09:56,343 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:56,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:09:56,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 26 [2020-12-23 17:09:56,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599061100] [2020-12-23 17:09:56,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-12-23 17:09:56,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:56,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-12-23 17:09:56,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2020-12-23 17:09:56,346 INFO L87 Difference]: Start difference. First operand 228 states and 298 transitions. Second operand 26 states. [2020-12-23 17:09:56,892 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-12-23 17:09:57,576 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2020-12-23 17:09:57,851 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-12-23 17:09:58,167 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-12-23 17:10:00,653 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2020-12-23 17:10:01,122 WARN L197 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 92 [2020-12-23 17:10:02,126 WARN L197 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 83 [2020-12-23 17:10:02,367 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-12-23 17:10:02,915 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2020-12-23 17:10:03,958 WARN L197 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 130 [2020-12-23 17:10:05,169 WARN L197 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 83 [2020-12-23 17:10:05,714 WARN L197 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 86 [2020-12-23 17:10:06,231 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 86 [2020-12-23 17:10:07,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:10:07,096 INFO L93 Difference]: Finished difference Result 310 states and 384 transitions. [2020-12-23 17:10:07,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 17:10:07,097 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 45 [2020-12-23 17:10:07,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:10:07,099 INFO L225 Difference]: With dead ends: 310 [2020-12-23 17:10:07,099 INFO L226 Difference]: Without dead ends: 310 [2020-12-23 17:10:07,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 36 SyntacticMatches, 7 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2020-12-23 17:10:07,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-12-23 17:10:07,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 246. [2020-12-23 17:10:07,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-12-23 17:10:07,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 321 transitions. [2020-12-23 17:10:07,108 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 321 transitions. Word has length 45 [2020-12-23 17:10:07,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:10:07,108 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 321 transitions. [2020-12-23 17:10:07,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-12-23 17:10:07,108 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 321 transitions. [2020-12-23 17:10:07,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-23 17:10:07,109 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:10:07,109 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:10:07,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2020-12-23 17:10:07,310 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:10:07,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:10:07,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1360903564, now seen corresponding path program 2 times [2020-12-23 17:10:07,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:10:07,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512290020] [2020-12-23 17:10:07,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:10:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:07,375 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 17:10:07,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512290020] [2020-12-23 17:10:07,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115785357] [2020-12-23 17:10:07,375 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 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 17:10:07,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 17:10:07,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 17:10:07,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 17:10:07,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:10:07,527 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 17:10:07,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:10:07,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-12-23 17:10:07,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320492387] [2020-12-23 17:10:07,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 17:10:07,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:10:07,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 17:10:07,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 17:10:07,529 INFO L87 Difference]: Start difference. First operand 246 states and 321 transitions. Second operand 4 states. [2020-12-23 17:10:07,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:10:07,619 INFO L93 Difference]: Finished difference Result 230 states and 293 transitions. [2020-12-23 17:10:07,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:10:07,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-12-23 17:10:07,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:10:07,621 INFO L225 Difference]: With dead ends: 230 [2020-12-23 17:10:07,621 INFO L226 Difference]: Without dead ends: 230 [2020-12-23 17:10:07,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:10:07,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-12-23 17:10:07,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 229. [2020-12-23 17:10:07,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-12-23 17:10:07,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 293 transitions. [2020-12-23 17:10:07,627 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 293 transitions. Word has length 46 [2020-12-23 17:10:07,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:10:07,639 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 293 transitions. [2020-12-23 17:10:07,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 17:10:07,642 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 293 transitions. [2020-12-23 17:10:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-23 17:10:07,642 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:10:07,642 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:10:07,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:10:07,851 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:10:07,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:10:07,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1178585278, now seen corresponding path program 1 times [2020-12-23 17:10:07,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:10:07,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877735972] [2020-12-23 17:10:07,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:10:07,869 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:10:07,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1688720670] [2020-12-23 17:10:07,870 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 17:10:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:07,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-23 17:10:07,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:10:07,990 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 17:10:07,991 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:07,997 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:07,998 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:07,999 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-12-23 17:10:08,030 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:10:08,031 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:08,040 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:08,041 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 17:10:08,042 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:16 [2020-12-23 17:10:08,135 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:08,136 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 17 treesize of output 21 [2020-12-23 17:10:08,138 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:08,140 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-23 17:10:08,156 INFO L625 ElimStorePlain]: treesize reduction 6, result has 71.4 percent of original size [2020-12-23 17:10:08,157 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 17:10:08,158 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2020-12-23 17:10:08,197 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:08,197 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 16 treesize of output 16 [2020-12-23 17:10:08,199 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:08,201 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-23 17:10:08,216 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:08,217 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:08,219 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 17:10:08,219 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:15 [2020-12-23 17:10:08,305 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:10:08,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877735972] [2020-12-23 17:10:08,306 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:10:08,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688720670] [2020-12-23 17:10:08,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:10:08,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-23 17:10:08,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724430026] [2020-12-23 17:10:08,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 17:10:08,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:10:08,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 17:10:08,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-12-23 17:10:08,308 INFO L87 Difference]: Start difference. First operand 229 states and 293 transitions. Second operand 12 states. [2020-12-23 17:10:09,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:10:09,155 INFO L93 Difference]: Finished difference Result 246 states and 301 transitions. [2020-12-23 17:10:09,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 17:10:09,156 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2020-12-23 17:10:09,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:10:09,158 INFO L225 Difference]: With dead ends: 246 [2020-12-23 17:10:09,158 INFO L226 Difference]: Without dead ends: 245 [2020-12-23 17:10:09,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2020-12-23 17:10:09,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-12-23 17:10:09,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 229. [2020-12-23 17:10:09,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-12-23 17:10:09,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 292 transitions. [2020-12-23 17:10:09,164 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 292 transitions. Word has length 46 [2020-12-23 17:10:09,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:10:09,164 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 292 transitions. [2020-12-23 17:10:09,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 17:10:09,164 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 292 transitions. [2020-12-23 17:10:09,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-23 17:10:09,165 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:10:09,165 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:10:09,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2020-12-23 17:10:09,366 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:10:09,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:10:09,367 INFO L82 PathProgramCache]: Analyzing trace with hash -2020813251, now seen corresponding path program 1 times [2020-12-23 17:10:09,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:10:09,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951156859] [2020-12-23 17:10:09,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:10:09,378 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:10:09,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1895058013] [2020-12-23 17:10:09,378 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 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 17:10:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:09,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 47 conjunts are in the unsatisfiable core [2020-12-23 17:10:09,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:10:09,516 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 17:10:09,517 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:09,521 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:09,522 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:09,522 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-23 17:10:09,536 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:10:09,537 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:09,545 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:09,546 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:09,546 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2020-12-23 17:10:09,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:09,568 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 17:10:09,570 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:09,581 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:09,582 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:09,582 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2020-12-23 17:10:09,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:09,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:09,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:09,612 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-12-23 17:10:09,613 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:09,626 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:09,627 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:09,627 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:28 [2020-12-23 17:10:09,657 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:09,658 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 17:10:09,659 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:09,700 INFO L625 ElimStorePlain]: treesize reduction 14, result has 72.0 percent of original size [2020-12-23 17:10:09,701 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:09,701 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:36 [2020-12-23 17:10:09,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:09,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:09,772 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:09,783 INFO L348 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2020-12-23 17:10:09,784 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 32 treesize of output 30 [2020-12-23 17:10:09,785 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:09,811 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:09,811 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:09,812 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:54, output treesize:50 [2020-12-23 17:10:09,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:09,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:09,919 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:09,995 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:09,995 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 5 case distinctions, treesize of input 49 treesize of output 143 [2020-12-23 17:10:10,000 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:10,112 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 35 [2020-12-23 17:10:10,113 INFO L625 ElimStorePlain]: treesize reduction 56, result has 53.7 percent of original size [2020-12-23 17:10:10,115 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:10,115 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:10,117 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 17:10:10,117 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:71, output treesize:65 [2020-12-23 17:10:10,119 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:10,119 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:10,169 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:10,170 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:10,207 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:10,208 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:10,209 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:10,210 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:10:10,211 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:10,212 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:10,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:10,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:10,248 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:10,257 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:10,279 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:10,279 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 3 case distinctions, treesize of input 37 treesize of output 68 [2020-12-23 17:10:10,281 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:10,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:10,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:10,316 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:10,327 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:10,348 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:10,348 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 3 case distinctions, treesize of input 37 treesize of output 68 [2020-12-23 17:10:10,351 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:10,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:10,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:10,367 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:10,375 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:10,444 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:10,444 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 7 case distinctions, treesize of input 46 treesize of output 150 [2020-12-23 17:10:10,449 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:10,777 WARN L197 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 41 [2020-12-23 17:10:10,778 INFO L625 ElimStorePlain]: treesize reduction 140, result has 56.7 percent of original size [2020-12-23 17:10:10,790 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 3 xjuncts. [2020-12-23 17:10:10,790 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:187, output treesize:183 [2020-12-23 17:10:10,981 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-12-23 17:10:10,992 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:10:10,992 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:10,994 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:10:11,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,031 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:11,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,051 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:11,104 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:11,104 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 89 [2020-12-23 17:10:11,107 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:11,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,118 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:11,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,128 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:11,149 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 26 [2020-12-23 17:10:11,151 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:11,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,247 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:11,249 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:11,374 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-12-23 17:10:11,375 INFO L348 Elim1Store]: treesize reduction 28, result has 76.3 percent of original size [2020-12-23 17:10:11,375 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 61 treesize of output 137 [2020-12-23 17:10:11,379 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:11,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,446 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:11,447 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:11,459 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:11,460 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 61 [2020-12-23 17:10:11,462 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:11,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,503 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:11,504 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:11,516 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:11,517 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 61 [2020-12-23 17:10:11,519 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:11,826 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 39 [2020-12-23 17:10:11,827 INFO L625 ElimStorePlain]: treesize reduction 268, result has 39.5 percent of original size [2020-12-23 17:10:11,829 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 3 xjuncts. [2020-12-23 17:10:11,829 INFO L244 ElimStorePlain]: Needed 6 recursive calls to eliminate 2 variables, input treesize:377, output treesize:175 [2020-12-23 17:10:11,878 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:10:11,880 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:11,885 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:11,886 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:10:11,889 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:11,890 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:10:11,892 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:11,893 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:10:11,897 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:11,900 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:11,901 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:10:11,903 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:10:11,910 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:11,912 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 17:10:11,916 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:11,917 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:10:11,920 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:11,927 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_34|], 20=[v_prenex_4, v_prenex_3], 30=[|v_#memory_$Pointer$.base_59|]} [2020-12-23 17:10:11,943 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:10:11,944 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:11,961 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:10:11,962 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:11,978 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:10:11,979 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:11,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:11,997 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 1 [2020-12-23 17:10:11,998 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:12,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:12,017 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 1 [2020-12-23 17:10:12,018 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:12,197 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-23 17:10:12,198 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:12,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:12,212 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:12,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:12,223 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:12,256 INFO L348 Elim1Store]: treesize reduction 12, result has 70.0 percent of original size [2020-12-23 17:10:12,257 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 70 [2020-12-23 17:10:12,259 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:12,497 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2020-12-23 17:10:12,499 INFO L625 ElimStorePlain]: treesize reduction 121, result has 56.3 percent of original size [2020-12-23 17:10:12,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:12,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:12,512 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:12,514 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:12,540 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:12,540 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 82 [2020-12-23 17:10:12,545 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:12,760 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-23 17:10:12,761 INFO L625 ElimStorePlain]: treesize reduction 40, result has 78.4 percent of original size [2020-12-23 17:10:12,761 INFO L515 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.base_59| vanished before elimination [2020-12-23 17:10:12,764 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 17:10:12,764 INFO L244 ElimStorePlain]: Needed 8 recursive calls to eliminate 6 variables, input treesize:465, output treesize:163 [2020-12-23 17:10:13,177 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:13,188 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 54 treesize of output 34 [2020-12-23 17:10:13,189 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:13,195 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 58 treesize of output 38 [2020-12-23 17:10:13,196 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:13,295 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:13,296 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 17:10:13,296 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:191, output treesize:145 [2020-12-23 17:10:13,610 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-12-23 17:10:13,614 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:13,616 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:13,624 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:13,865 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-12-23 17:10:13,872 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:13,905 INFO L443 ElimStorePlain]: Different costs {12=[v_prenex_7], 20=[|#memory_$Pointer$.base|]} [2020-12-23 17:10:13,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:13,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:13,914 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:13,915 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:13,927 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:13,927 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 5 new quantified variables, introduced 5 case distinctions, treesize of input 62 treesize of output 41 [2020-12-23 17:10:13,930 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:10:13,985 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:13,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:13,993 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:13,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:13,996 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:14,020 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:14,020 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 72 treesize of output 60 [2020-12-23 17:10:14,023 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:10:14,066 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:14,074 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2020-12-23 17:10:14,074 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:169, output treesize:31 [2020-12-23 17:10:14,264 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 17:10:14,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951156859] [2020-12-23 17:10:14,265 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:10:14,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895058013] [2020-12-23 17:10:14,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:10:14,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-12-23 17:10:14,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934637036] [2020-12-23 17:10:14,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 17:10:14,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:10:14,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 17:10:14,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2020-12-23 17:10:14,267 INFO L87 Difference]: Start difference. First operand 229 states and 292 transitions. Second operand 19 states. [2020-12-23 17:10:15,205 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-12-23 17:10:16,062 WARN L197 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-23 17:10:16,509 WARN L197 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-12-23 17:10:17,293 WARN L197 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2020-12-23 17:10:18,138 WARN L197 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2020-12-23 17:10:19,551 WARN L197 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2020-12-23 17:10:20,993 WARN L197 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 111 DAG size of output: 91 [2020-12-23 17:10:21,681 WARN L197 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-23 17:10:22,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:10:22,637 INFO L93 Difference]: Finished difference Result 347 states and 419 transitions. [2020-12-23 17:10:22,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-23 17:10:22,639 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 46 [2020-12-23 17:10:22,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:10:22,641 INFO L225 Difference]: With dead ends: 347 [2020-12-23 17:10:22,641 INFO L226 Difference]: Without dead ends: 347 [2020-12-23 17:10:22,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2020-12-23 17:10:22,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-12-23 17:10:22,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 260. [2020-12-23 17:10:22,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-12-23 17:10:22,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 330 transitions. [2020-12-23 17:10:22,648 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 330 transitions. Word has length 46 [2020-12-23 17:10:22,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:10:22,649 INFO L481 AbstractCegarLoop]: Abstraction has 260 states and 330 transitions. [2020-12-23 17:10:22,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 17:10:22,649 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 330 transitions. [2020-12-23 17:10:22,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-23 17:10:22,649 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:10:22,650 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:10:22,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2020-12-23 17:10:22,851 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:10:22,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:10:22,852 INFO L82 PathProgramCache]: Analyzing trace with hash -2020813250, now seen corresponding path program 1 times [2020-12-23 17:10:22,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:10:22,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876215967] [2020-12-23 17:10:22,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:10:22,865 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:10:22,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1603431174] [2020-12-23 17:10:22,866 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:10:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:22,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 56 conjunts are in the unsatisfiable core [2020-12-23 17:10:22,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:10:23,004 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:10:23,006 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:23,019 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:23,026 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:10:23,027 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:23,037 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:23,038 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:23,038 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2020-12-23 17:10:23,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:23,068 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 17:10:23,070 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:23,093 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:23,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:23,101 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 17:10:23,103 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:23,123 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:23,125 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:23,125 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:47, output treesize:39 [2020-12-23 17:10:23,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:23,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:23,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:23,178 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-12-23 17:10:23,180 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:23,212 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:23,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:23,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:23,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:23,225 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-12-23 17:10:23,227 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:23,247 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:23,248 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:23,249 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:77, output treesize:39 [2020-12-23 17:10:23,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:23,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:23,388 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:23,406 INFO L348 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2020-12-23 17:10:23,407 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 32 treesize of output 30 [2020-12-23 17:10:23,409 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:23,484 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:23,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:23,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:23,514 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:23,532 INFO L348 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2020-12-23 17:10:23,533 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 32 treesize of output 30 [2020-12-23 17:10:23,535 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:23,596 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:23,598 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:23,599 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:75, output treesize:67 [2020-12-23 17:10:23,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:23,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:23,861 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:23,999 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-12-23 17:10:24,000 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:24,000 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 5 case distinctions, treesize of input 70 treesize of output 156 [2020-12-23 17:10:24,005 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:24,359 WARN L197 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2020-12-23 17:10:24,360 INFO L625 ElimStorePlain]: treesize reduction 56, result has 62.9 percent of original size [2020-12-23 17:10:24,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:24,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:24,403 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:24,515 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-12-23 17:10:24,516 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:24,516 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 5 case distinctions, treesize of input 41 treesize of output 124 [2020-12-23 17:10:24,525 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:24,793 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 40 [2020-12-23 17:10:24,794 INFO L625 ElimStorePlain]: treesize reduction 66, result has 56.9 percent of original size [2020-12-23 17:10:24,795 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:10:24,795 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:24,799 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 17:10:24,799 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:109, output treesize:87 [2020-12-23 17:10:24,801 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:10:24,801 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:24,898 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:10:24,899 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:24,997 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:10:24,997 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:24,999 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:25,000 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:10:25,002 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:25,003 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:10:25,005 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:25,007 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:25,008 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:10:25,012 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:10:25,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:25,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:25,190 INFO L244 Elim1Store]: Index analysis took 147 ms [2020-12-23 17:10:25,239 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:25,283 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:25,382 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:25,382 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 7 case distinctions, treesize of input 46 treesize of output 150 [2020-12-23 17:10:25,390 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:25,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:25,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:25,436 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:25,447 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:25,480 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:25,481 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 3 case distinctions, treesize of input 46 treesize of output 71 [2020-12-23 17:10:25,484 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:25,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:25,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:25,513 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:25,521 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:25,557 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:25,557 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 3 case distinctions, treesize of input 44 treesize of output 71 [2020-12-23 17:10:25,561 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:26,446 WARN L197 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2020-12-23 17:10:26,448 INFO L625 ElimStorePlain]: treesize reduction 140, result has 64.6 percent of original size [2020-12-23 17:10:26,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:26,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:26,479 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:26,514 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:26,514 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 3 case distinctions, treesize of input 37 treesize of output 68 [2020-12-23 17:10:26,517 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:26,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:26,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:26,640 INFO L244 Elim1Store]: Index analysis took 103 ms [2020-12-23 17:10:26,671 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:26,701 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:26,810 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-23 17:10:26,811 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:26,811 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 7 case distinctions, treesize of input 46 treesize of output 150 [2020-12-23 17:10:26,814 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:26,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:26,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:26,834 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:26,867 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:26,868 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 3 case distinctions, treesize of input 37 treesize of output 68 [2020-12-23 17:10:26,870 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:27,382 WARN L197 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2020-12-23 17:10:27,383 INFO L625 ElimStorePlain]: treesize reduction 114, result has 68.2 percent of original size [2020-12-23 17:10:27,386 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 3 xjuncts. [2020-12-23 17:10:27,386 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:290, output treesize:244 [2020-12-23 17:10:27,744 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-12-23 17:10:27,753 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:10:27,755 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:10:27,758 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 17:10:27,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:27,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:27,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:27,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:27,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:27,832 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:27,849 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:27,850 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 61 [2020-12-23 17:10:27,853 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:27,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:27,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:27,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:27,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:27,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:27,975 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:27,994 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:27,994 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 61 [2020-12-23 17:10:27,997 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:28,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:28,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:28,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:28,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:28,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:28,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:28,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:28,132 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:28,135 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:28,315 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-12-23 17:10:28,316 INFO L348 Elim1Store]: treesize reduction 28, result has 76.3 percent of original size [2020-12-23 17:10:28,316 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 61 treesize of output 137 [2020-12-23 17:10:28,321 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:29,062 WARN L197 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2020-12-23 17:10:29,062 INFO L625 ElimStorePlain]: treesize reduction 140, result has 68.3 percent of original size [2020-12-23 17:10:29,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,181 INFO L244 Elim1Store]: Index analysis took 101 ms [2020-12-23 17:10:29,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,263 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:29,264 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:29,460 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-12-23 17:10:29,462 INFO L348 Elim1Store]: treesize reduction 28, result has 76.3 percent of original size [2020-12-23 17:10:29,462 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 61 treesize of output 137 [2020-12-23 17:10:29,468 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:29,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,527 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:29,544 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:29,545 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 61 [2020-12-23 17:10:29,547 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:29,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:29,582 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:29,601 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:29,601 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 61 [2020-12-23 17:10:29,604 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:30,133 WARN L197 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2020-12-23 17:10:30,134 INFO L625 ElimStorePlain]: treesize reduction 66, result has 78.7 percent of original size [2020-12-23 17:10:30,137 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 3 xjuncts. [2020-12-23 17:10:30,137 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:358, output treesize:244 [2020-12-23 17:10:30,147 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:10:30,154 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:10:30,170 INFO L443 ElimStorePlain]: Different costs {20=[v_prenex_12, v_prenex_11, v_prenex_10, v_prenex_9], 30=[|v_#memory_$Pointer$.offset_42|, |v_#memory_$Pointer$.base_67|]} [2020-12-23 17:10:30,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:30,243 INFO L348 Elim1Store]: treesize reduction 12, result has 70.0 percent of original size [2020-12-23 17:10:30,244 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 81 [2020-12-23 17:10:30,247 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:30,978 WARN L197 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2020-12-23 17:10:30,979 INFO L625 ElimStorePlain]: treesize reduction 52, result has 87.9 percent of original size [2020-12-23 17:10:31,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:31,092 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:31,092 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 52 treesize of output 105 [2020-12-23 17:10:31,096 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:31,391 WARN L197 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 58 [2020-12-23 17:10:31,392 INFO L625 ElimStorePlain]: treesize reduction 199, result has 49.5 percent of original size [2020-12-23 17:10:31,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:31,432 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:31,433 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 93 [2020-12-23 17:10:31,436 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:31,601 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-23 17:10:31,602 INFO L625 ElimStorePlain]: treesize reduction 40, result has 82.1 percent of original size [2020-12-23 17:10:31,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:31,664 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:31,664 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 56 treesize of output 119 [2020-12-23 17:10:31,667 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:31,850 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-23 17:10:31,851 INFO L625 ElimStorePlain]: treesize reduction 34, result has 83.6 percent of original size [2020-12-23 17:10:31,851 INFO L515 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_42| vanished before elimination [2020-12-23 17:10:31,851 INFO L515 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.base_67| vanished before elimination [2020-12-23 17:10:31,852 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 6 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 17:10:31,853 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:392, output treesize:173 [2020-12-23 17:10:32,901 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-12-23 17:10:32,907 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:32,908 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:10:32,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:32,940 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:10:32,958 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:32,959 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 63 [2020-12-23 17:10:32,963 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:10:32,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:33,001 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:33,002 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 108 treesize of output 82 [2020-12-23 17:10:33,006 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:33,009 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:10:33,084 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:33,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:33,155 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:33,156 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 6 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 37 [2020-12-23 17:10:33,160 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:33,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:33,204 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:33,205 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 6 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 37 [2020-12-23 17:10:33,208 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:33,240 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:33,243 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:33,244 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:249, output treesize:13 [2020-12-23 17:10:33,389 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:10:33,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876215967] [2020-12-23 17:10:33,389 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:10:33,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603431174] [2020-12-23 17:10:33,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:10:33,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-12-23 17:10:33,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398062203] [2020-12-23 17:10:33,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 17:10:33,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:10:33,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 17:10:33,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-12-23 17:10:33,391 INFO L87 Difference]: Start difference. First operand 260 states and 330 transitions. Second operand 19 states. [2020-12-23 17:10:33,762 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-12-23 17:10:33,979 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2020-12-23 17:10:34,604 WARN L197 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-12-23 17:10:35,386 WARN L197 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-23 17:10:35,766 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-12-23 17:10:36,161 WARN L197 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-23 17:10:36,577 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-23 17:10:37,011 WARN L197 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-12-23 17:10:37,801 WARN L197 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2020-12-23 17:10:38,565 WARN L197 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-12-23 17:10:38,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:10:38,869 INFO L93 Difference]: Finished difference Result 363 states and 453 transitions. [2020-12-23 17:10:38,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-23 17:10:38,870 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 46 [2020-12-23 17:10:38,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:10:38,872 INFO L225 Difference]: With dead ends: 363 [2020-12-23 17:10:38,872 INFO L226 Difference]: Without dead ends: 363 [2020-12-23 17:10:38,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2020-12-23 17:10:38,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-12-23 17:10:38,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 263. [2020-12-23 17:10:38,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-12-23 17:10:38,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 332 transitions. [2020-12-23 17:10:38,879 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 332 transitions. Word has length 46 [2020-12-23 17:10:38,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:10:38,879 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 332 transitions. [2020-12-23 17:10:38,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 17:10:38,880 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 332 transitions. [2020-12-23 17:10:38,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-23 17:10:38,880 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:10:38,880 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:10:39,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2020-12-23 17:10:39,094 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:10:39,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:10:39,095 INFO L82 PathProgramCache]: Analyzing trace with hash -2020820556, now seen corresponding path program 1 times [2020-12-23 17:10:39,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:10:39,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558050062] [2020-12-23 17:10:39,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:10:39,107 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:10:39,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [151380899] [2020-12-23 17:10:39,107 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:10:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:39,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-23 17:10:39,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:10:39,273 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:10:39,274 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:39,293 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:39,294 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 17:10:39,294 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:14 [2020-12-23 17:10:39,409 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 17:10:39,410 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:39,429 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:39,431 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 17:10:39,431 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:3 [2020-12-23 17:10:39,536 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:10:39,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558050062] [2020-12-23 17:10:39,536 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:10:39,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151380899] [2020-12-23 17:10:39,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:10:39,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-23 17:10:39,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950512994] [2020-12-23 17:10:39,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 17:10:39,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:10:39,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 17:10:39,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:10:39,538 INFO L87 Difference]: Start difference. First operand 263 states and 332 transitions. Second operand 11 states. [2020-12-23 17:10:40,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:10:40,797 INFO L93 Difference]: Finished difference Result 320 states and 386 transitions. [2020-12-23 17:10:40,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-23 17:10:40,799 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 46 [2020-12-23 17:10:40,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:10:40,802 INFO L225 Difference]: With dead ends: 320 [2020-12-23 17:10:40,802 INFO L226 Difference]: Without dead ends: 320 [2020-12-23 17:10:40,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2020-12-23 17:10:40,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-12-23 17:10:40,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 264. [2020-12-23 17:10:40,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-12-23 17:10:40,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 332 transitions. [2020-12-23 17:10:40,809 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 332 transitions. Word has length 46 [2020-12-23 17:10:40,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:10:40,810 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 332 transitions. [2020-12-23 17:10:40,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 17:10:40,810 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 332 transitions. [2020-12-23 17:10:40,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-23 17:10:40,811 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:10:40,811 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:10:41,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2020-12-23 17:10:41,020 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:10:41,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:10:41,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1000329294, now seen corresponding path program 1 times [2020-12-23 17:10:41,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:10:41,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910307718] [2020-12-23 17:10:41,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:10:41,039 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:10:41,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250184736] [2020-12-23 17:10:41,040 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:10:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:41,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 29 conjunts are in the unsatisfiable core [2020-12-23 17:10:41,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:10:41,159 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 17:10:41,160 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,166 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:41,169 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 17:10:41,170 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,175 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:41,176 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,176 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2020-12-23 17:10:41,282 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:41,282 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 17:10:41,284 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,335 INFO L625 ElimStorePlain]: treesize reduction 14, result has 69.6 percent of original size [2020-12-23 17:10:41,358 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:41,358 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 19 treesize of output 33 [2020-12-23 17:10:41,360 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,400 INFO L625 ElimStorePlain]: treesize reduction 14, result has 65.9 percent of original size [2020-12-23 17:10:41,401 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,402 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:27 [2020-12-23 17:10:41,441 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:10:41,442 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,460 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:41,461 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,462 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2020-12-23 17:10:41,523 INFO L348 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2020-12-23 17:10:41,524 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2020-12-23 17:10:41,525 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,551 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:41,552 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,552 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:43 [2020-12-23 17:10:41,644 INFO L348 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2020-12-23 17:10:41,645 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 23 [2020-12-23 17:10:41,646 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,672 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:41,673 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,674 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:43 [2020-12-23 17:10:41,720 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:41,721 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 34 [2020-12-23 17:10:41,723 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:41,724 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:41,727 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,759 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:41,772 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:41,773 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 30 [2020-12-23 17:10:41,774 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,832 INFO L625 ElimStorePlain]: treesize reduction 20, result has 65.5 percent of original size [2020-12-23 17:10:41,833 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,833 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:54, output treesize:38 [2020-12-23 17:10:41,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:41,936 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-12-23 17:10:41,936 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 32 treesize of output 30 [2020-12-23 17:10:41,937 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:41,961 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:41,962 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 17:10:41,963 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:53, output treesize:58 [2020-12-23 17:10:42,090 INFO L348 Elim1Store]: treesize reduction 10, result has 73.0 percent of original size [2020-12-23 17:10:42,091 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 42 treesize of output 41 [2020-12-23 17:10:42,092 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:10:42,106 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:42,107 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:10:42,108 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:58, output treesize:22 [2020-12-23 17:10:42,193 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:10:42,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910307718] [2020-12-23 17:10:42,193 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:10:42,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250184736] [2020-12-23 17:10:42,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:10:42,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-12-23 17:10:42,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187536124] [2020-12-23 17:10:42,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-23 17:10:42,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:10:42,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-23 17:10:42,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-12-23 17:10:42,195 INFO L87 Difference]: Start difference. First operand 264 states and 332 transitions. Second operand 13 states. [2020-12-23 17:10:43,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:10:43,749 INFO L93 Difference]: Finished difference Result 358 states and 436 transitions. [2020-12-23 17:10:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 17:10:43,752 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 47 [2020-12-23 17:10:43,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:10:43,753 INFO L225 Difference]: With dead ends: 358 [2020-12-23 17:10:43,753 INFO L226 Difference]: Without dead ends: 358 [2020-12-23 17:10:43,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2020-12-23 17:10:43,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-12-23 17:10:43,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 239. [2020-12-23 17:10:43,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-12-23 17:10:43,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 300 transitions. [2020-12-23 17:10:43,761 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 300 transitions. Word has length 47 [2020-12-23 17:10:43,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:10:43,761 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 300 transitions. [2020-12-23 17:10:43,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-23 17:10:43,761 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 300 transitions. [2020-12-23 17:10:43,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-23 17:10:43,762 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:10:43,762 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:10:43,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-12-23 17:10:43,978 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:10:43,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:10:43,979 INFO L82 PathProgramCache]: Analyzing trace with hash 2045271335, now seen corresponding path program 1 times [2020-12-23 17:10:43,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:10:43,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352158720] [2020-12-23 17:10:43,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:10:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:44,370 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:10:44,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352158720] [2020-12-23 17:10:44,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865151090] [2020-12-23 17:10:44,371 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:10:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:44,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 30 conjunts are in the unsatisfiable core [2020-12-23 17:10:44,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:10:44,516 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 17:10:44,517 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:44,524 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:44,525 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:44,526 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-23 17:10:44,772 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:44,773 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 17:10:44,775 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:44,777 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:44,827 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:44,828 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:44,829 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2020-12-23 17:10:44,991 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 17:10:44,992 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:45,045 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:45,047 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 17:10:45,048 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:40, output treesize:36 [2020-12-23 17:10:45,236 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:45,237 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 65 [2020-12-23 17:10:45,239 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-23 17:10:45,239 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:10:45,240 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:45,277 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:45,279 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 17:10:45,279 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:61, output treesize:51 [2020-12-23 17:10:45,618 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:45,618 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 46 treesize of output 63 [2020-12-23 17:10:45,621 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 17:10:45,622 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:45,624 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:45,625 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:10:45,678 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:45,680 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:45,682 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:45,684 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:45,686 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:45,686 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 17:10:45,687 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:63, output treesize:30 [2020-12-23 17:10:45,689 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:45,768 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:45,931 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 0 case distinctions, treesize of input 17 treesize of output 17 [2020-12-23 17:10:45,933 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:45,946 INFO L625 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2020-12-23 17:10:45,947 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 17:10:45,947 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2020-12-23 17:10:46,038 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:10:46,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:10:46,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2020-12-23 17:10:46,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338280259] [2020-12-23 17:10:46,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-23 17:10:46,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:10:46,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-23 17:10:46,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2020-12-23 17:10:46,041 INFO L87 Difference]: Start difference. First operand 239 states and 300 transitions. Second operand 24 states. [2020-12-23 17:10:47,342 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 33 [2020-12-23 17:10:47,623 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-12-23 17:10:48,238 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-23 17:10:48,512 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-12-23 17:10:49,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:10:49,765 INFO L93 Difference]: Finished difference Result 314 states and 379 transitions. [2020-12-23 17:10:49,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 17:10:49,767 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 49 [2020-12-23 17:10:49,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:10:49,770 INFO L225 Difference]: With dead ends: 314 [2020-12-23 17:10:49,770 INFO L226 Difference]: Without dead ends: 314 [2020-12-23 17:10:49,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=205, Invalid=985, Unknown=0, NotChecked=0, Total=1190 [2020-12-23 17:10:49,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-12-23 17:10:49,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 283. [2020-12-23 17:10:49,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-12-23 17:10:49,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 356 transitions. [2020-12-23 17:10:49,779 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 356 transitions. Word has length 49 [2020-12-23 17:10:49,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:10:49,779 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 356 transitions. [2020-12-23 17:10:49,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-23 17:10:49,780 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 356 transitions. [2020-12-23 17:10:49,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-23 17:10:49,781 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:10:49,781 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:10:49,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:10:49,995 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:10:49,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:10:49,996 INFO L82 PathProgramCache]: Analyzing trace with hash 2045271336, now seen corresponding path program 1 times [2020-12-23 17:10:49,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:10:49,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973975851] [2020-12-23 17:10:49,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:10:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:50,249 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:10:50,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973975851] [2020-12-23 17:10:50,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994948234] [2020-12-23 17:10:50,249 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 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:10:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:50,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-23 17:10:50,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:10:50,379 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 17:10:50,381 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:50,399 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:50,400 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:50,400 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-23 17:10:50,609 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:50,609 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 17:10:50,611 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:50,615 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:50,650 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:50,651 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:50,652 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2020-12-23 17:10:51,051 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 17:10:51,052 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:51,108 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:51,118 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 17:10:51,119 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:51,177 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:51,178 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:51,179 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:45 [2020-12-23 17:10:51,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:51,364 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 64 [2020-12-23 17:10:51,365 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:51,451 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:51,465 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 59 [2020-12-23 17:10:51,467 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:51,546 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:51,548 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 17:10:51,548 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:110, output treesize:90 [2020-12-23 17:10:51,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:10:52,009 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:52,009 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 3 case distinctions, treesize of input 81 treesize of output 76 [2020-12-23 17:10:52,012 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-23 17:10:52,013 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:10:52,015 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:10:52,016 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:10:52,120 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-23 17:10:52,120 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:52,150 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:52,150 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 1 case distinctions, treesize of input 47 treesize of output 34 [2020-12-23 17:10:52,152 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:52,157 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2020-12-23 17:10:52,200 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:52,203 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,203 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,204 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,205 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,205 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,206 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,207 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:10:52,207 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,208 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:10:52,209 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,210 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,211 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:52,212 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,213 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,214 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,214 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:52,215 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,216 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:52,217 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,218 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,219 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:52,220 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,220 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,221 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,222 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 2 xjuncts. [2020-12-23 17:10:52,222 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:111, output treesize:51 [2020-12-23 17:10:52,223 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,224 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,343 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:52,747 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:10:52,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:10:52,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13] total 20 [2020-12-23 17:10:52,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445800133] [2020-12-23 17:10:52,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-12-23 17:10:52,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:10:52,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-12-23 17:10:52,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2020-12-23 17:10:52,750 INFO L87 Difference]: Start difference. First operand 283 states and 356 transitions. Second operand 21 states. [2020-12-23 17:10:54,011 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2020-12-23 17:10:54,382 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2020-12-23 17:10:55,220 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2020-12-23 17:10:56,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:10:56,281 INFO L93 Difference]: Finished difference Result 333 states and 401 transitions. [2020-12-23 17:10:56,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 17:10:56,284 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 49 [2020-12-23 17:10:56,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:10:56,285 INFO L225 Difference]: With dead ends: 333 [2020-12-23 17:10:56,286 INFO L226 Difference]: Without dead ends: 333 [2020-12-23 17:10:56,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2020-12-23 17:10:56,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-12-23 17:10:56,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 296. [2020-12-23 17:10:56,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-12-23 17:10:56,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 378 transitions. [2020-12-23 17:10:56,295 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 378 transitions. Word has length 49 [2020-12-23 17:10:56,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:10:56,296 INFO L481 AbstractCegarLoop]: Abstraction has 296 states and 378 transitions. [2020-12-23 17:10:56,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-12-23 17:10:56,296 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 378 transitions. [2020-12-23 17:10:56,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-23 17:10:56,297 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:10:56,297 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:10:56,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2020-12-23 17:10:56,511 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:10:56,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:10:56,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1021098355, now seen corresponding path program 1 times [2020-12-23 17:10:56,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:10:56,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211824863] [2020-12-23 17:10:56,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:10:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:56,569 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:10:56,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211824863] [2020-12-23 17:10:56,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503580362] [2020-12-23 17:10:56,569 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 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:10:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:56,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 17:10:56,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:10:56,733 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:10:56,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:10:56,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-12-23 17:10:56,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353289468] [2020-12-23 17:10:56,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 17:10:56,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:10:56,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 17:10:56,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:10:56,735 INFO L87 Difference]: Start difference. First operand 296 states and 378 transitions. Second operand 6 states. [2020-12-23 17:10:56,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:10:56,804 INFO L93 Difference]: Finished difference Result 306 states and 380 transitions. [2020-12-23 17:10:56,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:10:56,806 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-12-23 17:10:56,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:10:56,808 INFO L225 Difference]: With dead ends: 306 [2020-12-23 17:10:56,808 INFO L226 Difference]: Without dead ends: 306 [2020-12-23 17:10:56,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 51 SyntacticMatches, 0 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 17:10:56,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-12-23 17:10:56,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 299. [2020-12-23 17:10:56,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-12-23 17:10:56,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 380 transitions. [2020-12-23 17:10:56,815 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 380 transitions. Word has length 50 [2020-12-23 17:10:56,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:10:56,815 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 380 transitions. [2020-12-23 17:10:56,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 17:10:56,815 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 380 transitions. [2020-12-23 17:10:56,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 17:10:56,816 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:10:56,816 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:10:57,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:10:57,032 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:10:57,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:10:57,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1589265816, now seen corresponding path program 1 times [2020-12-23 17:10:57,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:10:57,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245883743] [2020-12-23 17:10:57,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:10:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:57,079 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-12-23 17:10:57,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245883743] [2020-12-23 17:10:57,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:10:57,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 17:10:57,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574945155] [2020-12-23 17:10:57,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 17:10:57,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:10:57,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 17:10:57,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 17:10:57,081 INFO L87 Difference]: Start difference. First operand 299 states and 380 transitions. Second operand 4 states. [2020-12-23 17:10:57,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:10:57,264 INFO L93 Difference]: Finished difference Result 317 states and 399 transitions. [2020-12-23 17:10:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:10:57,266 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-12-23 17:10:57,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:10:57,268 INFO L225 Difference]: With dead ends: 317 [2020-12-23 17:10:57,268 INFO L226 Difference]: Without dead ends: 317 [2020-12-23 17:10:57,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:10:57,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-12-23 17:10:57,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 298. [2020-12-23 17:10:57,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-23 17:10:57,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 379 transitions. [2020-12-23 17:10:57,275 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 379 transitions. Word has length 51 [2020-12-23 17:10:57,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:10:57,275 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 379 transitions. [2020-12-23 17:10:57,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 17:10:57,276 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 379 transitions. [2020-12-23 17:10:57,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 17:10:57,276 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:10:57,276 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:10:57,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-12-23 17:10:57,277 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:10:57,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:10:57,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1589265815, now seen corresponding path program 1 times [2020-12-23 17:10:57,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:10:57,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832746995] [2020-12-23 17:10:57,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:10:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:57,510 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:10:57,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832746995] [2020-12-23 17:10:57,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725584694] [2020-12-23 17:10:57,511 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 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:10:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:57,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-23 17:10:57,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:10:57,798 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:57,799 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 17:10:57,800 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:57,802 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:57,804 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:57,824 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:57,825 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:57,825 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2020-12-23 17:10:57,997 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 17:10:57,997 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:58,025 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:58,026 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:10:58,026 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:26 [2020-12-23 17:10:58,124 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2020-12-23 17:10:58,126 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:58,163 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:58,165 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 17:10:58,166 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:38 [2020-12-23 17:10:58,451 INFO L443 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.base|], 6=[|#memory_$Pointer$.offset|]} [2020-12-23 17:10:58,468 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2020-12-23 17:10:58,469 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:10:58,514 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:58,537 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:58,538 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 1 case distinctions, treesize of input 34 treesize of output 27 [2020-12-23 17:10:58,540 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:58,542 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:58,545 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2020-12-23 17:10:58,576 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:10:58,579 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:58,581 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:10:58,582 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 17:10:58,582 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:59, output treesize:15 [2020-12-23 17:10:58,644 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:10:58,838 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:10:58,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:10:58,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 23 [2020-12-23 17:10:58,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775141201] [2020-12-23 17:10:58,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-23 17:10:58,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:10:58,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-23 17:10:58,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2020-12-23 17:10:58,840 INFO L87 Difference]: Start difference. First operand 298 states and 379 transitions. Second operand 24 states. [2020-12-23 17:10:59,841 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2020-12-23 17:11:00,648 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-12-23 17:11:00,870 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2020-12-23 17:11:02,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:11:02,761 INFO L93 Difference]: Finished difference Result 443 states and 544 transitions. [2020-12-23 17:11:02,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-12-23 17:11:02,763 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 51 [2020-12-23 17:11:02,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:11:02,765 INFO L225 Difference]: With dead ends: 443 [2020-12-23 17:11:02,765 INFO L226 Difference]: Without dead ends: 443 [2020-12-23 17:11:02,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=414, Invalid=1748, Unknown=0, NotChecked=0, Total=2162 [2020-12-23 17:11:02,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-12-23 17:11:02,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 344. [2020-12-23 17:11:02,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-12-23 17:11:02,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 445 transitions. [2020-12-23 17:11:02,774 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 445 transitions. Word has length 51 [2020-12-23 17:11:02,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:11:02,774 INFO L481 AbstractCegarLoop]: Abstraction has 344 states and 445 transitions. [2020-12-23 17:11:02,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-23 17:11:02,774 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 445 transitions. [2020-12-23 17:11:02,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 17:11:02,775 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:11:02,775 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:11:02,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2020-12-23 17:11:02,989 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:11:02,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:11:02,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1446176517, now seen corresponding path program 1 times [2020-12-23 17:11:02,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:11:02,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338278923] [2020-12-23 17:11:02,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:11:03,007 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:11:03,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [722774914] [2020-12-23 17:11:03,007 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 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:11:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:11:03,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-23 17:11:03,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:11:03,211 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 11 [2020-12-23 17:11:03,212 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:03,228 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:03,231 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:11:03,231 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2020-12-23 17:11:03,307 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_77|, |v_#memory_$Pointer$.offset_47|], 2=[|v_#memory_int_28|]} [2020-12-23 17:11:03,321 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:11:03,322 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:03,368 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:03,377 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:11:03,378 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:03,424 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:03,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:11:03,443 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 27 treesize of output 15 [2020-12-23 17:11:03,444 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:03,484 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:03,490 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:11:03,490 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:61, output treesize:40 [2020-12-23 17:11:03,552 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:03,556 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:11:04,617 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:04,617 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 27 treesize of output 27 [2020-12-23 17:11:04,620 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:04,623 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:04,624 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:11:04,710 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:04,736 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:04,737 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 37 treesize of output 29 [2020-12-23 17:11:04,740 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:11:04,744 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:11:04,745 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:11:04,821 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:04,826 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:04,830 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:11:04,831 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:11:04,833 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:11:04,837 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-23 17:11:04,838 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-23 17:11:04,842 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 17:11:04,846 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-23 17:11:04,851 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-23 17:11:04,853 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-23 17:11:04,857 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 17:11:04,859 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 7 disjuncts [2020-12-23 17:11:04,865 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 17:11:04,867 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-23 17:11:04,899 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-23 17:11:04,899 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:66, output treesize:62 [2020-12-23 17:11:04,904 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:04,907 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:04,909 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:11:04,910 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:11:05,046 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:05,060 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:05,061 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:11:05,063 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:11:07,414 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-12-23 17:11:07,729 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-12-23 17:11:07,730 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:08,071 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:08,140 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:08,140 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 21 treesize of output 25 [2020-12-23 17:11:08,142 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:11:08,145 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2020-12-23 17:11:08,153 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 32 treesize of output 14 [2020-12-23 17:11:08,156 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:11:08,249 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:08,266 INFO L547 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2020-12-23 17:11:08,267 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:90, output treesize:27 [2020-12-23 17:11:14,513 WARN L197 SmtUtils]: Spent 4.02 s on a formula simplification that was a NOOP. DAG size: 20 [2020-12-23 17:11:14,517 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:14,733 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:11:14,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338278923] [2020-12-23 17:11:14,734 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:11:14,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722774914] [2020-12-23 17:11:14,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:11:14,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-12-23 17:11:14,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508522671] [2020-12-23 17:11:14,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-23 17:11:14,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:11:14,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-23 17:11:14,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=328, Unknown=2, NotChecked=0, Total=380 [2020-12-23 17:11:14,735 INFO L87 Difference]: Start difference. First operand 344 states and 445 transitions. Second operand 20 states. [2020-12-23 17:11:20,405 WARN L197 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2020-12-23 17:11:25,008 WARN L197 SmtUtils]: Spent 4.33 s on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2020-12-23 17:11:27,428 WARN L197 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2020-12-23 17:11:31,866 WARN L197 SmtUtils]: Spent 2.17 s on a formula simplification that was a NOOP. DAG size: 66 [2020-12-23 17:11:35,452 WARN L197 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2020-12-23 17:11:40,809 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 35 [2020-12-23 17:11:47,330 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 38 [2020-12-23 17:11:48,691 WARN L197 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 104 DAG size of output: 39 [2020-12-23 17:11:49,270 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 37 [2020-12-23 17:11:49,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:11:49,891 INFO L93 Difference]: Finished difference Result 462 states and 585 transitions. [2020-12-23 17:11:49,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-23 17:11:49,893 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 51 [2020-12-23 17:11:49,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:11:49,895 INFO L225 Difference]: With dead ends: 462 [2020-12-23 17:11:49,896 INFO L226 Difference]: Without dead ends: 458 [2020-12-23 17:11:49,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 31.0s TimeCoverageRelationStatistics Valid=264, Invalid=1214, Unknown=4, NotChecked=0, Total=1482 [2020-12-23 17:11:49,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-12-23 17:11:49,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 384. [2020-12-23 17:11:49,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-12-23 17:11:49,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 498 transitions. [2020-12-23 17:11:49,908 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 498 transitions. Word has length 51 [2020-12-23 17:11:49,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:11:49,908 INFO L481 AbstractCegarLoop]: Abstraction has 384 states and 498 transitions. [2020-12-23 17:11:49,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-23 17:11:49,908 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 498 transitions. [2020-12-23 17:11:49,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 17:11:49,909 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:11:49,909 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:11:50,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2020-12-23 17:11:50,124 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:11:50,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:11:50,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1034980313, now seen corresponding path program 1 times [2020-12-23 17:11:50,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:11:50,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944982951] [2020-12-23 17:11:50,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:11:50,141 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:11:50,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [555066503] [2020-12-23 17:11:50,142 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 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:11:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:11:50,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 41 conjunts are in the unsatisfiable core [2020-12-23 17:11:50,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:11:50,332 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 17:11:50,334 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:50,347 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:50,348 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:11:50,349 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-23 17:11:50,398 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:11:50,400 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:50,427 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:50,429 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:11:50,430 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2020-12-23 17:11:50,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:11:50,491 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 17:11:50,495 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:50,535 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:50,537 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:11:50,538 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2020-12-23 17:11:50,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:11:50,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:11:50,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:11:50,629 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-12-23 17:11:50,632 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:50,675 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:50,676 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:11:50,677 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:28 [2020-12-23 17:11:50,750 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:50,751 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 17:11:50,754 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:50,864 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2020-12-23 17:11:50,865 INFO L625 ElimStorePlain]: treesize reduction 14, result has 70.2 percent of original size [2020-12-23 17:11:50,867 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:11:50,868 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:33 [2020-12-23 17:11:51,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:11:51,281 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2020-12-23 17:11:51,282 INFO L348 Elim1Store]: treesize reduction 24, result has 66.2 percent of original size [2020-12-23 17:11:51,283 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 2 case distinctions, treesize of input 32 treesize of output 60 [2020-12-23 17:11:51,288 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:51,455 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 25 [2020-12-23 17:11:51,456 INFO L625 ElimStorePlain]: treesize reduction 30, result has 57.1 percent of original size [2020-12-23 17:11:51,457 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:11:51,458 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:48, output treesize:40 [2020-12-23 17:11:51,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:11:51,681 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:51,682 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 36 [2020-12-23 17:11:51,686 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:51,711 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:51,713 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 17:11:51,714 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:40, output treesize:17 [2020-12-23 17:11:51,797 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-12-23 17:11:51,800 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:51,831 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:51,834 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 17:11:51,834 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:28, output treesize:21 [2020-12-23 17:11:52,131 INFO L443 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|], 2=[|#memory_$Pointer$.base|]} [2020-12-23 17:11:52,153 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 7 treesize of output 3 [2020-12-23 17:11:52,157 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:52,250 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:52,289 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:52,290 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 17 treesize of output 17 [2020-12-23 17:11:52,293 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:52,296 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:52,298 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:11:52,482 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-23 17:11:52,483 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:52,487 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:52,489 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:11:52,493 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:11:52,495 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 17:11:52,495 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:24 [2020-12-23 17:11:52,498 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:52,589 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:53,056 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:53,057 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:11:53,058 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:53,061 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:53,062 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:11:53,065 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:53,127 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:53,128 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 17:11:53,131 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:53,210 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:11:53,211 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 17:11:53,215 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:53,246 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 0 case distinctions, treesize of input 17 treesize of output 17 [2020-12-23 17:11:53,251 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:53,268 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 17:11:53,272 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 17:11:53,510 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 17 [2020-12-23 17:11:53,511 INFO L625 ElimStorePlain]: treesize reduction 70, result has 30.7 percent of original size [2020-12-23 17:11:53,514 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 2 xjuncts. [2020-12-23 17:11:53,515 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:87, output treesize:28 [2020-12-23 17:11:53,679 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:11:53,822 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:11:53,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944982951] [2020-12-23 17:11:53,823 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:11:53,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555066503] [2020-12-23 17:11:53,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:11:53,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-12-23 17:11:53,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592185903] [2020-12-23 17:11:53,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-23 17:11:53,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:11:53,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-23 17:11:53,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2020-12-23 17:11:53,825 INFO L87 Difference]: Start difference. First operand 384 states and 498 transitions. Second operand 18 states. [2020-12-23 17:11:55,706 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-23 17:11:56,593 WARN L197 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 35 [2020-12-23 17:11:57,059 WARN L197 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-12-23 17:11:57,598 WARN L197 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2020-12-23 17:11:58,233 WARN L197 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2020-12-23 17:11:59,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:11:59,671 INFO L93 Difference]: Finished difference Result 523 states and 667 transitions. [2020-12-23 17:11:59,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-23 17:11:59,678 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 51 [2020-12-23 17:11:59,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:11:59,682 INFO L225 Difference]: With dead ends: 523 [2020-12-23 17:11:59,682 INFO L226 Difference]: Without dead ends: 523 [2020-12-23 17:11:59,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=172, Invalid=820, Unknown=0, NotChecked=0, Total=992 [2020-12-23 17:11:59,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-12-23 17:11:59,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 383. [2020-12-23 17:11:59,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-12-23 17:11:59,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 497 transitions. [2020-12-23 17:11:59,693 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 497 transitions. Word has length 51 [2020-12-23 17:11:59,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:11:59,694 INFO L481 AbstractCegarLoop]: Abstraction has 383 states and 497 transitions. [2020-12-23 17:11:59,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-23 17:11:59,694 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 497 transitions. [2020-12-23 17:11:59,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 17:11:59,695 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:11:59,695 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:11:59,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2020-12-23 17:11:59,911 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:11:59,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:11:59,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1159847037, now seen corresponding path program 1 times [2020-12-23 17:11:59,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:11:59,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221303161] [2020-12-23 17:11:59,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:11:59,928 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:11:59,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19092180] [2020-12-23 17:11:59,928 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 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:12:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:12:00,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 17:12:00,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:12:00,189 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-23 17:12:00,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221303161] [2020-12-23 17:12:00,190 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:12:00,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19092180] [2020-12-23 17:12:00,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:12:00,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-12-23 17:12:00,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350888355] [2020-12-23 17:12:00,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:12:00,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:12:00,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:12:00,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:12:00,193 INFO L87 Difference]: Start difference. First operand 383 states and 497 transitions. Second operand 5 states. [2020-12-23 17:12:00,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:12:00,357 INFO L93 Difference]: Finished difference Result 389 states and 491 transitions. [2020-12-23 17:12:00,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:12:00,359 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-12-23 17:12:00,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:12:00,361 INFO L225 Difference]: With dead ends: 389 [2020-12-23 17:12:00,362 INFO L226 Difference]: Without dead ends: 389 [2020-12-23 17:12:00,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:12:00,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-12-23 17:12:00,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 383. [2020-12-23 17:12:00,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-12-23 17:12:00,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 491 transitions. [2020-12-23 17:12:00,373 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 491 transitions. Word has length 51 [2020-12-23 17:12:00,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:12:00,374 INFO L481 AbstractCegarLoop]: Abstraction has 383 states and 491 transitions. [2020-12-23 17:12:00,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:12:00,374 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 491 transitions. [2020-12-23 17:12:00,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 17:12:00,375 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:12:00,375 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:00,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2020-12-23 17:12:00,589 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:12:00,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:12:00,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1580190023, now seen corresponding path program 1 times [2020-12-23 17:12:00,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:12:00,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734765408] [2020-12-23 17:12:00,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:12:00,605 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:12:00,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [712581299] [2020-12-23 17:12:00,605 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 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:12:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:12:00,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 17:12:00,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:12:00,785 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 17:12:00,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734765408] [2020-12-23 17:12:00,786 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:12:00,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712581299] [2020-12-23 17:12:00,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:12:00,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-12-23 17:12:00,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183773042] [2020-12-23 17:12:00,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:12:00,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:12:00,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:12:00,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:12:00,788 INFO L87 Difference]: Start difference. First operand 383 states and 491 transitions. Second operand 5 states. [2020-12-23 17:12:00,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:12:00,877 INFO L93 Difference]: Finished difference Result 405 states and 509 transitions. [2020-12-23 17:12:00,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:12:00,879 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-12-23 17:12:00,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:12:00,881 INFO L225 Difference]: With dead ends: 405 [2020-12-23 17:12:00,881 INFO L226 Difference]: Without dead ends: 405 [2020-12-23 17:12:00,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:12:00,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2020-12-23 17:12:00,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 399. [2020-12-23 17:12:00,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2020-12-23 17:12:00,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 501 transitions. [2020-12-23 17:12:00,892 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 501 transitions. Word has length 51 [2020-12-23 17:12:00,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:12:00,892 INFO L481 AbstractCegarLoop]: Abstraction has 399 states and 501 transitions. [2020-12-23 17:12:00,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:12:00,892 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 501 transitions. [2020-12-23 17:12:00,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 17:12:00,893 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:12:00,894 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:12:01,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2020-12-23 17:12:01,108 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:12:01,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:12:01,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1901638252, now seen corresponding path program 1 times [2020-12-23 17:12:01,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:12:01,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323091199] [2020-12-23 17:12:01,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:12:01,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:12:01,614 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:12:01,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323091199] [2020-12-23 17:12:01,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888644105] [2020-12-23 17:12:01,615 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 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:12:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:12:01,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 30 conjunts are in the unsatisfiable core [2020-12-23 17:12:01,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:12:02,195 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:02,196 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 17:12:02,199 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:12:02,203 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:12:02,208 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:02,287 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:02,289 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:12:02,289 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2020-12-23 17:12:02,792 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 17:12:02,794 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:02,861 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:02,863 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:12:02,863 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2020-12-23 17:12:03,139 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2020-12-23 17:12:03,142 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:03,264 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-23 17:12:03,266 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:03,270 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 17:12:03,271 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:51, output treesize:47 [2020-12-23 17:12:03,938 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:03,939 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 1 case distinctions, treesize of input 43 treesize of output 30 [2020-12-23 17:12:03,942 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:12:03,948 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-23 17:12:04,024 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:04,029 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:12:04,032 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:12:04,033 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 17:12:04,034 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:59, output treesize:18 [2020-12-23 17:12:04,382 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:12:04,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:12:04,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14] total 22 [2020-12-23 17:12:04,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002430586] [2020-12-23 17:12:04,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-12-23 17:12:04,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:12:04,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-12-23 17:12:04,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2020-12-23 17:12:04,384 INFO L87 Difference]: Start difference. First operand 399 states and 501 transitions. Second operand 23 states. [2020-12-23 17:12:05,813 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 27 [2020-12-23 17:12:06,256 WARN L197 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-12-23 17:12:06,862 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2020-12-23 17:12:07,092 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2020-12-23 17:12:07,913 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2020-12-23 17:12:08,500 WARN L197 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2020-12-23 17:12:10,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:12:10,722 INFO L93 Difference]: Finished difference Result 498 states and 602 transitions. [2020-12-23 17:12:10,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-23 17:12:10,724 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 54 [2020-12-23 17:12:10,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:12:10,726 INFO L225 Difference]: With dead ends: 498 [2020-12-23 17:12:10,726 INFO L226 Difference]: Without dead ends: 498 [2020-12-23 17:12:10,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=313, Invalid=1247, Unknown=0, NotChecked=0, Total=1560 [2020-12-23 17:12:10,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-12-23 17:12:10,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 415. [2020-12-23 17:12:10,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-12-23 17:12:10,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 529 transitions. [2020-12-23 17:12:10,735 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 529 transitions. Word has length 54 [2020-12-23 17:12:10,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:12:10,735 INFO L481 AbstractCegarLoop]: Abstraction has 415 states and 529 transitions. [2020-12-23 17:12:10,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-12-23 17:12:10,735 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 529 transitions. [2020-12-23 17:12:10,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 17:12:10,736 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:12:10,736 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:12:10,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:12:10,952 INFO L429 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:12:10,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:12:10,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1901638293, now seen corresponding path program 1 times [2020-12-23 17:12:10,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:12:10,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501711843] [2020-12-23 17:12:10,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:12:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:12:11,366 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-12-23 17:12:11,651 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:12:11,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501711843] [2020-12-23 17:12:11,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867556321] [2020-12-23 17:12:11,651 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 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:12:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:12:11,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 58 conjunts are in the unsatisfiable core [2020-12-23 17:12:11,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:12:11,801 INFO L348 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-12-23 17:12:11,802 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 16 [2020-12-23 17:12:11,803 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:11,829 INFO L625 ElimStorePlain]: treesize reduction 8, result has 66.7 percent of original size [2020-12-23 17:12:11,830 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:12:11,830 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:16 [2020-12-23 17:12:11,947 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:11,947 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 44 [2020-12-23 17:12:11,950 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:11,995 INFO L625 ElimStorePlain]: treesize reduction 22, result has 46.3 percent of original size [2020-12-23 17:12:11,996 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 17:12:11,997 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:19 [2020-12-23 17:12:12,079 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-12-23 17:12:12,081 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:12,096 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:12,097 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:12:12,097 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2020-12-23 17:12:12,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,177 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 23 treesize of output 22 [2020-12-23 17:12:12,179 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:12,215 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:12,216 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:12:12,217 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2020-12-23 17:12:12,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,315 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 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 17:12:12,318 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:12,351 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:12,352 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:12:12,352 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:42 [2020-12-23 17:12:12,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,475 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2020-12-23 17:12:12,486 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:12,527 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:12,528 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:12:12,528 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:51 [2020-12-23 17:12:12,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:12,693 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 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 17:12:12,695 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:12,736 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:12,737 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:12:12,737 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:51 [2020-12-23 17:12:13,005 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:13,006 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 3 case distinctions, treesize of input 22 treesize of output 55 [2020-12-23 17:12:13,009 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:12:13,013 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:13,179 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2020-12-23 17:12:13,180 INFO L625 ElimStorePlain]: treesize reduction 8, result has 89.2 percent of original size [2020-12-23 17:12:13,183 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 17:12:13,184 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:72, output treesize:66 [2020-12-23 17:12:13,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:13,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:13,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:13,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:13,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:13,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:13,443 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 48 treesize of output 56 [2020-12-23 17:12:13,446 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:13,609 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-12-23 17:12:13,610 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:13,612 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 17:12:13,612 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:79, output treesize:75 [2020-12-23 17:12:13,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:13,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:13,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:13,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:13,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:13,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:13,939 INFO L348 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2020-12-23 17:12:13,940 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 1 case distinctions, treesize of input 57 treesize of output 68 [2020-12-23 17:12:13,942 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:14,125 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-23 17:12:14,126 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:14,130 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 17:12:14,130 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:88, output treesize:84 [2020-12-23 17:12:14,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:14,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:14,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:14,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:14,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:14,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:14,440 INFO L348 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2020-12-23 17:12:14,440 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 78 [2020-12-23 17:12:14,443 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:14,610 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-12-23 17:12:14,610 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:14,613 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 17:12:14,613 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:95, output treesize:91 [2020-12-23 17:12:14,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:14,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:14,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:14,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:14,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:14,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:14,947 INFO L348 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2020-12-23 17:12:14,948 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 90 [2020-12-23 17:12:14,951 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:15,195 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-12-23 17:12:15,196 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:15,199 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 17:12:15,200 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:104, output treesize:100 [2020-12-23 17:12:15,534 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-12-23 17:12:15,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:15,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:15,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:15,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:15,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:15,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:15,648 INFO L348 Elim1Store]: treesize reduction 188, result has 15.7 percent of original size [2020-12-23 17:12:15,649 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 88 treesize of output 93 [2020-12-23 17:12:15,652 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:15,838 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-12-23 17:12:15,839 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:15,841 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 17:12:15,841 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:119, output treesize:100 [2020-12-23 17:12:15,894 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_50|], 72=[|v_#memory_$Pointer$.base_93|]} [2020-12-23 17:12:15,911 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 17:12:15,912 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:16,073 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-12-23 17:12:16,073 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:16,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:16,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:16,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:16,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:16,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:16,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:16,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:16,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:16,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:16,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:16,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:16,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:16,281 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-23 17:12:16,282 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:16,282 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 13 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 4 case distinctions, treesize of input 82 treesize of output 200 [2020-12-23 17:12:16,297 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:16,864 WARN L197 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2020-12-23 17:12:16,865 INFO L625 ElimStorePlain]: treesize reduction 60, result has 70.0 percent of original size [2020-12-23 17:12:16,872 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:16,873 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:16,874 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:16,875 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:16,876 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 17:12:16,877 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:126, output treesize:140 [2020-12-23 17:12:16,879 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:16,880 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:16,881 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:16,881 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:17,244 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:17,245 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:17,246 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:17,246 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:17,249 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 17:12:17,251 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,252 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,253 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,255 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,258 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,262 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,266 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,267 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,268 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,272 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 17:12:17,274 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,275 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,277 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,281 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,282 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,285 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 17:12:17,287 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,298 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 17:12:17,302 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,305 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 17:12:17,308 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,309 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,310 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,312 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,315 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,316 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,319 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,321 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:12:17,323 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,324 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,327 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,329 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:12:17,331 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,334 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:12:17,340 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,343 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:12:17,349 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,351 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,353 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,355 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:12:17,357 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,360 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:12:17,366 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,368 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:12:17,375 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:17,376 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:17,377 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:17,379 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,380 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,381 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,387 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,388 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,389 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,393 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 17:12:17,395 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,397 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,400 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,404 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,408 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 17:12:17,410 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,412 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 17:12:17,418 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,420 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 17:12:17,424 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,425 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,428 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,430 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:12:17,432 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,434 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:12:17,441 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,443 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:12:17,450 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:17,451 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:17,453 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,454 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,459 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:12:17,460 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,463 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 17:12:17,465 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,467 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 17:12:17,472 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,475 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 17:12:17,479 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:12:17,481 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:12:17,488 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:17,491 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,494 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:12:17,497 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 17:12:17,501 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 17:12:17,528 INFO L443 ElimStorePlain]: Different costs {70=[|v_#memory_$Pointer$.offset_51|], 850=[|v_#memory_$Pointer$.base_94|]} [2020-12-23 17:12:17,554 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 105 [2020-12-23 17:12:17,557 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:17,664 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 123 [2020-12-23 17:12:17,666 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:17,780 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 125 [2020-12-23 17:12:17,782 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:17,843 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 123 [2020-12-23 17:12:17,846 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:17,870 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 125 [2020-12-23 17:12:17,872 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:21,150 WARN L197 SmtUtils]: Spent 3.28 s on a formula simplification that was a NOOP. DAG size: 157 [2020-12-23 17:12:21,154 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:21,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:21,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:21,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:21,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:21,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:21,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:21,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:21,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:21,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:21,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:21,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:21,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:21,547 INFO L244 Elim1Store]: Index analysis took 365 ms [2020-12-23 17:12:22,167 WARN L197 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-12-23 17:12:22,168 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:22,169 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 195 treesize of output 657 [2020-12-23 17:12:22,181 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[22, 3, 2, 1] term [2020-12-23 17:12:22,181 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 22 disjuncts [2020-12-23 17:12:22,185 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:22,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:22,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:22,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:22,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:22,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:22,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:22,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:22,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:22,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:22,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:22,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:22,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:22,491 INFO L244 Elim1Store]: Index analysis took 287 ms [2020-12-23 17:12:23,202 WARN L197 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-12-23 17:12:23,202 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:23,203 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 193 treesize of output 655 [2020-12-23 17:12:23,212 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[22, 3, 2, 1] term [2020-12-23 17:12:23,213 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 22 disjuncts [2020-12-23 17:12:23,216 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:23,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:23,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:23,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:23,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:23,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:23,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:24,371 WARN L197 SmtUtils]: Spent 993.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 88 [2020-12-23 17:12:24,373 INFO L348 Elim1Store]: treesize reduction 660, result has 38.8 percent of original size [2020-12-23 17:12:24,374 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 38 case distinctions, treesize of input 202 treesize of output 485 [2020-12-23 17:12:24,383 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[20, 3, 2, 1] term [2020-12-23 17:12:24,383 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 20 disjuncts [2020-12-23 17:12:24,386 INFO L547 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:24,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:24,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:24,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:24,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:24,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:24,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:24,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:24,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:24,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:24,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:24,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:24,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:24,724 INFO L244 Elim1Store]: Index analysis took 305 ms [2020-12-23 17:12:25,278 WARN L197 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-12-23 17:12:25,279 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:25,279 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 195 treesize of output 657 [2020-12-23 17:12:25,287 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[26, 3, 2, 1] term [2020-12-23 17:12:25,287 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 26 disjuncts [2020-12-23 17:12:25,297 INFO L547 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:25,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:25,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:25,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:25,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:25,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:25,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:25,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:25,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:25,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:25,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:25,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:25,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:25,909 WARN L197 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-12-23 17:12:25,910 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:25,910 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 26 case distinctions, treesize of input 163 treesize of output 599 [2020-12-23 17:12:25,918 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[24, 3, 2, 1] term [2020-12-23 17:12:25,919 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 24 disjuncts [2020-12-23 17:12:25,921 INFO L547 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-12-23 17:12:26,454 WARN L197 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-12-23 17:12:26,455 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:26,461 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 5 xjuncts. [2020-12-23 17:12:26,461 INFO L244 ElimStorePlain]: Needed 11 recursive calls to eliminate 4 variables, input treesize:1092, output treesize:895 [2020-12-23 17:12:31,530 WARN L197 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-12-23 17:12:32,961 WARN L197 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-12-23 17:12:32,979 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-23 17:12:32,990 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 5, 6, 1] term [2020-12-23 17:12:32,990 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-23 17:12:33,080 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:33,080 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 1 case distinctions, treesize of input 125 treesize of output 94 [2020-12-23 17:12:33,082 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:33,086 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:33,086 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:12:33,808 WARN L197 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-12-23 17:12:33,809 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:33,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:33,846 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 127 treesize of output 84 [2020-12-23 17:12:33,852 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:12:34,586 WARN L197 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 236 [2020-12-23 17:12:34,587 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:34,642 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:34,643 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 1 case distinctions, treesize of input 127 treesize of output 96 [2020-12-23 17:12:34,645 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:34,651 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:34,652 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:12:35,326 WARN L197 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 233 [2020-12-23 17:12:35,327 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:35,384 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:35,385 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 1 case distinctions, treesize of input 125 treesize of output 94 [2020-12-23 17:12:35,388 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:35,390 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:35,391 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:12:36,020 WARN L197 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2020-12-23 17:12:36,022 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:36,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:12:36,058 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 103 treesize of output 72 [2020-12-23 17:12:36,062 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:12:36,700 WARN L197 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-12-23 17:12:36,701 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:12:36,718 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:36,719 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:12:36,720 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:36,721 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:36,723 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-23 17:12:36,736 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:12:36,738 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:36,740 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:36,741 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 17:12:36,744 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 17:12:36,752 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:12:36,753 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:36,755 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:36,756 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 17:12:36,759 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 17:12:36,766 INFO L547 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 5 dim-2 vars, End of recursive call: 16 dim-0 vars, and 5 xjuncts. [2020-12-23 17:12:36,767 INFO L244 ElimStorePlain]: Needed 6 recursive calls to eliminate 16 variables, input treesize:1000, output treesize:768 [2020-12-23 17:12:36,772 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:36,774 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:12:36,775 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:36,775 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:36,777 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-23 17:12:36,789 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:12:36,791 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:36,792 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:36,793 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 17:12:36,795 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 17:12:36,802 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:12:36,804 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:36,805 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:36,806 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 17:12:36,810 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 17:12:37,727 WARN L197 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-12-23 17:12:37,747 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:12:37,750 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:37,756 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:37,757 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 17:12:37,760 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 17:12:37,775 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:37,777 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:12:37,779 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:37,780 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:12:37,782 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-23 17:12:37,789 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:12:37,791 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:37,793 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:12:37,794 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 17:12:37,797 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts