/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-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread/stack-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 22:56:53,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 22:56:53,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 22:56:53,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 22:56:53,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 22:56:53,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 22:56:53,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 22:56:53,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 22:56:53,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 22:56:53,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 22:56:53,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 22:56:53,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 22:56:53,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 22:56:53,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 22:56:53,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 22:56:53,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 22:56:53,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 22:56:53,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 22:56:53,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 22:56:53,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 22:56:53,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 22:56:53,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 22:56:53,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 22:56:53,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 22:56:53,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 22:56:53,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 22:56:53,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 22:56:53,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 22:56:53,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 22:56:53,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 22:56:53,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 22:56:53,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 22:56:53,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 22:56:53,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 22:56:53,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 22:56:53,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 22:56:53,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 22:56:53,898 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 22:56:53,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 22:56:53,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 22:56:53,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 22:56:53,904 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 22:56:53,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 22:56:53,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 22:56:53,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 22:56:53,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 22:56:53,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 22:56:53,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 22:56:53,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 22:56:53,907 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 22:56:53,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 22:56:53,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 22:56:53,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 22:56:53,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 22:56:53,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 22:56:53,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 22:56:53,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 22:56:53,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 22:56:53,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 22:56:53,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 22:56:53,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 22:56:53,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 22:56:53,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 22:56:54,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 22:56:54,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 22:56:54,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 22:56:54,448 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 22:56:54,449 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 22:56:54,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/stack-1.i [2021-01-06 22:56:54,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c02e642c0/73ead91cbcea42c2baa63393c4f99394/FLAGc4a2ec49d [2021-01-06 22:56:55,335 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 22:56:55,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread/stack-1.i [2021-01-06 22:56:55,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c02e642c0/73ead91cbcea42c2baa63393c4f99394/FLAGc4a2ec49d [2021-01-06 22:56:55,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c02e642c0/73ead91cbcea42c2baa63393c4f99394 [2021-01-06 22:56:55,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 22:56:55,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 22:56:55,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 22:56:55,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 22:56:55,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 22:56:55,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 10:56:55" (1/1) ... [2021-01-06 22:56:55,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d4dae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:55, skipping insertion in model container [2021-01-06 22:56:55,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 10:56:55" (1/1) ... [2021-01-06 22:56:55,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 22:56:55,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 22:56:56,209 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread/stack-1.i[41520,41533] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~stack,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~stack,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[#t~ret38,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~i~1,] [2021-01-06 22:56:56,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 22:56:56,262 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 22:56:56,333 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread/stack-1.i[41520,41533] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~stack,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~stack,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[#t~ret38,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~i~1,] [2021-01-06 22:56:56,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 22:56:56,604 INFO L208 MainTranslator]: Completed translation [2021-01-06 22:56:56,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:56 WrapperNode [2021-01-06 22:56:56,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 22:56:56,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 22:56:56,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 22:56:56,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 22:56:56,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:56" (1/1) ... [2021-01-06 22:56:56,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:56" (1/1) ... [2021-01-06 22:56:56,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 22:56:56,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 22:56:56,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 22:56:56,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 22:56:56,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:56" (1/1) ... [2021-01-06 22:56:56,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:56" (1/1) ... [2021-01-06 22:56:56,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:56" (1/1) ... [2021-01-06 22:56:56,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:56" (1/1) ... [2021-01-06 22:56:56,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:56" (1/1) ... [2021-01-06 22:56:56,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:56" (1/1) ... [2021-01-06 22:56:56,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:56" (1/1) ... [2021-01-06 22:56:56,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 22:56:56,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 22:56:56,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 22:56:56,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 22:56:56,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 22:56:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-01-06 22:56:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-01-06 22:56:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-01-06 22:56:56,935 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-01-06 22:56:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 22:56:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 22:56:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 22:56:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 22:56:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-01-06 22:56:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 22:56:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 22:56:56,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 22:56:56,938 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-06 22:56:57,740 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 22:56:57,740 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-01-06 22:56:57,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 10:56:57 BoogieIcfgContainer [2021-01-06 22:56:57,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 22:56:57,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 22:56:57,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 22:56:57,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 22:56:57,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 10:56:55" (1/3) ... [2021-01-06 22:56:57,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4176760b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 10:56:57, skipping insertion in model container [2021-01-06 22:56:57,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:56" (2/3) ... [2021-01-06 22:56:57,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4176760b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 10:56:57, skipping insertion in model container [2021-01-06 22:56:57,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 10:56:57" (3/3) ... [2021-01-06 22:56:57,753 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-1.i [2021-01-06 22:56:57,762 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 22:56:57,762 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 22:56:57,768 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-06 22:56:57,770 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 22:56:57,830 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,830 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,830 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,830 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,831 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,831 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,831 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,832 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,832 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,832 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,832 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,833 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,833 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,833 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,833 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,834 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,834 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,834 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,834 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,835 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,835 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,835 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,835 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,836 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,836 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,836 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,836 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,837 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,837 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,837 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,837 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,838 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,838 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,838 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,838 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,838 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,839 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,839 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,839 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,839 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,840 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,840 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,840 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,840 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,841 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,841 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,841 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,841 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,842 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,842 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,842 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,842 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,843 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,843 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,843 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,843 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,844 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,844 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,844 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,845 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,845 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,845 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,845 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,845 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,846 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,846 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,846 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,846 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,847 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,847 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,847 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,847 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,847 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,848 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,848 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,848 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,848 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,849 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,849 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,849 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,849 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,850 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,850 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,850 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,850 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,851 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,851 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,851 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,851 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,852 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,852 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,852 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,852 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,853 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,853 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,853 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,853 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,854 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,854 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,854 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,854 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,855 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,855 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,855 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,855 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,855 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,856 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,856 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,856 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,856 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,857 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,857 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,857 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,858 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,858 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,858 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,859 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,859 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,859 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,860 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,860 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,860 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,860 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,861 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,861 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,861 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,861 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,862 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,862 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,862 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,862 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,863 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,863 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,863 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,863 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,864 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,865 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,865 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,865 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,866 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,866 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,866 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,866 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,866 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,867 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,867 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,867 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,867 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,868 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,868 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,868 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,868 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,869 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,869 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,869 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,869 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,870 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,870 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,870 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,871 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,871 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,871 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,872 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,872 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,872 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,872 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,873 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,873 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,873 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,873 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,874 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,874 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,874 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,874 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,874 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,875 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,875 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,875 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,875 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,875 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,876 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,876 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,876 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,876 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,877 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,877 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,877 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,877 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,877 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,878 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,878 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,878 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,878 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,878 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,880 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,880 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,880 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,880 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,881 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,881 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,881 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,881 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,881 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,881 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,882 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,882 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,882 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,882 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,883 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,883 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,883 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,883 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,885 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,885 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,885 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,885 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,886 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,886 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,886 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,886 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,886 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,887 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,887 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,887 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,887 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,887 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,888 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,888 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,888 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,888 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,889 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,889 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,889 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,889 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,889 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,890 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,890 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,890 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,893 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,893 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,893 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,894 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,894 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,894 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,894 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,895 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,895 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,895 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,895 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,896 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,896 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,896 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,896 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,897 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,897 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,897 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,904 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,904 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,904 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,905 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,905 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,905 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,905 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,906 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,906 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,906 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,906 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,906 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,907 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,907 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,907 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,907 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,907 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,908 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,908 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,908 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,908 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,909 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,909 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 22:56:57,919 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-01-06 22:56:57,942 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-01-06 22:56:57,973 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 22:56:57,973 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 22:56:57,973 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 22:56:57,973 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 22:56:57,974 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 22:56:57,974 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 22:56:57,974 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 22:56:57,974 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 22:56:57,994 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 22:56:57,997 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 148 transitions, 318 flow [2021-01-06 22:56:58,001 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 148 transitions, 318 flow [2021-01-06 22:56:58,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 143 places, 148 transitions, 318 flow [2021-01-06 22:56:58,123 INFO L129 PetriNetUnfolder]: 11/148 cut-off events. [2021-01-06 22:56:58,123 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-01-06 22:56:58,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 148 events. 11/148 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 352 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 108. Up to 3 conditions per place. [2021-01-06 22:56:58,145 INFO L116 LiptonReduction]: Number of co-enabled transitions 5962 [2021-01-06 22:57:01,820 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-06 22:57:01,995 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-06 22:57:03,166 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2021-01-06 22:57:03,312 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-01-06 22:57:03,691 WARN L197 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2021-01-06 22:57:03,825 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-01-06 22:57:04,245 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-01-06 22:57:04,447 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-01-06 22:57:05,925 WARN L197 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 146 [2021-01-06 22:57:06,444 WARN L197 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-01-06 22:57:07,633 WARN L197 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 152 DAG size of output: 146 [2021-01-06 22:57:08,117 WARN L197 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-01-06 22:57:08,200 INFO L131 LiptonReduction]: Checked pairs total: 10363 [2021-01-06 22:57:08,201 INFO L133 LiptonReduction]: Total number of compositions: 136 [2021-01-06 22:57:08,208 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 41 transitions, 104 flow [2021-01-06 22:57:08,233 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 354 states. [2021-01-06 22:57:08,235 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states. [2021-01-06 22:57:08,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-01-06 22:57:08,241 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:57:08,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-01-06 22:57:08,242 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:57:08,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:57:08,248 INFO L82 PathProgramCache]: Analyzing trace with hash 677511707, now seen corresponding path program 1 times [2021-01-06 22:57:08,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:57:08,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169205878] [2021-01-06 22:57:08,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:57:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:08,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:08,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169205878] [2021-01-06 22:57:08,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 22:57:08,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 22:57:08,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464988263] [2021-01-06 22:57:08,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 22:57:08,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:57:08,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 22:57:08,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 22:57:08,533 INFO L87 Difference]: Start difference. First operand 354 states. Second operand 3 states. [2021-01-06 22:57:08,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:57:08,607 INFO L93 Difference]: Finished difference Result 548 states and 1356 transitions. [2021-01-06 22:57:08,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 22:57:08,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-01-06 22:57:08,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:57:08,631 INFO L225 Difference]: With dead ends: 548 [2021-01-06 22:57:08,631 INFO L226 Difference]: Without dead ends: 499 [2021-01-06 22:57:08,633 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 [2021-01-06 22:57:08,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2021-01-06 22:57:08,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 459. [2021-01-06 22:57:08,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2021-01-06 22:57:08,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 1193 transitions. [2021-01-06 22:57:08,740 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 1193 transitions. Word has length 6 [2021-01-06 22:57:08,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:57:08,740 INFO L481 AbstractCegarLoop]: Abstraction has 459 states and 1193 transitions. [2021-01-06 22:57:08,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 22:57:08,740 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 1193 transitions. [2021-01-06 22:57:08,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 22:57:08,742 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:57:08,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:57:08,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 22:57:08,743 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:57:08,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:57:08,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1201882441, now seen corresponding path program 1 times [2021-01-06 22:57:08,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:57:08,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470976726] [2021-01-06 22:57:08,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:57:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:08,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:08,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470976726] [2021-01-06 22:57:08,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 22:57:08,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 22:57:08,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14738992] [2021-01-06 22:57:08,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 22:57:08,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:57:08,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 22:57:08,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 22:57:08,897 INFO L87 Difference]: Start difference. First operand 459 states and 1193 transitions. Second operand 3 states. [2021-01-06 22:57:08,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:57:08,924 INFO L93 Difference]: Finished difference Result 507 states and 1313 transitions. [2021-01-06 22:57:08,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 22:57:08,928 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2021-01-06 22:57:08,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:57:08,938 INFO L225 Difference]: With dead ends: 507 [2021-01-06 22:57:08,938 INFO L226 Difference]: Without dead ends: 507 [2021-01-06 22:57:08,939 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 [2021-01-06 22:57:08,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-01-06 22:57:08,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2021-01-06 22:57:08,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2021-01-06 22:57:08,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 1313 transitions. [2021-01-06 22:57:08,981 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 1313 transitions. Word has length 10 [2021-01-06 22:57:08,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:57:08,982 INFO L481 AbstractCegarLoop]: Abstraction has 507 states and 1313 transitions. [2021-01-06 22:57:08,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 22:57:08,982 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 1313 transitions. [2021-01-06 22:57:08,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 22:57:08,984 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:57:08,985 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:57:08,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 22:57:08,985 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:57:08,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:57:08,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1860342298, now seen corresponding path program 1 times [2021-01-06 22:57:08,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:57:08,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787604861] [2021-01-06 22:57:08,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:57:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:09,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:09,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787604861] [2021-01-06 22:57:09,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415259010] [2021-01-06 22:57:09,087 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 [2021-01-06 22:57:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:09,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-06 22:57:09,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:57:09,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:09,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 22:57:09,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-01-06 22:57:09,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676826694] [2021-01-06 22:57:09,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 22:57:09,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:57:09,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 22:57:09,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-01-06 22:57:09,249 INFO L87 Difference]: Start difference. First operand 507 states and 1313 transitions. Second operand 7 states. [2021-01-06 22:57:09,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:57:09,377 INFO L93 Difference]: Finished difference Result 955 states and 2372 transitions. [2021-01-06 22:57:09,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 22:57:09,378 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2021-01-06 22:57:09,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:57:09,386 INFO L225 Difference]: With dead ends: 955 [2021-01-06 22:57:09,387 INFO L226 Difference]: Without dead ends: 925 [2021-01-06 22:57:09,387 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-01-06 22:57:09,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2021-01-06 22:57:09,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 617. [2021-01-06 22:57:09,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2021-01-06 22:57:09,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 1593 transitions. [2021-01-06 22:57:09,439 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 1593 transitions. Word has length 13 [2021-01-06 22:57:09,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:57:09,440 INFO L481 AbstractCegarLoop]: Abstraction has 617 states and 1593 transitions. [2021-01-06 22:57:09,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 22:57:09,440 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 1593 transitions. [2021-01-06 22:57:09,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-06 22:57:09,443 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:57:09,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:57:09,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-01-06 22:57:09,659 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:57:09,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:57:09,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1425350964, now seen corresponding path program 1 times [2021-01-06 22:57:09,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:57:09,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436520767] [2021-01-06 22:57:09,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:57:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:09,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:09,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436520767] [2021-01-06 22:57:09,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 22:57:09,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 22:57:09,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134343399] [2021-01-06 22:57:09,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 22:57:09,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:57:09,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 22:57:09,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 22:57:09,777 INFO L87 Difference]: Start difference. First operand 617 states and 1593 transitions. Second operand 3 states. [2021-01-06 22:57:09,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:57:09,807 INFO L93 Difference]: Finished difference Result 312 states and 684 transitions. [2021-01-06 22:57:09,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 22:57:09,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2021-01-06 22:57:09,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:57:09,810 INFO L225 Difference]: With dead ends: 312 [2021-01-06 22:57:09,810 INFO L226 Difference]: Without dead ends: 308 [2021-01-06 22:57:09,811 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 [2021-01-06 22:57:09,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2021-01-06 22:57:09,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 294. [2021-01-06 22:57:09,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2021-01-06 22:57:09,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 645 transitions. [2021-01-06 22:57:09,836 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 645 transitions. Word has length 16 [2021-01-06 22:57:09,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:57:09,837 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 645 transitions. [2021-01-06 22:57:09,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 22:57:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 645 transitions. [2021-01-06 22:57:09,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 22:57:09,842 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:57:09,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:57:09,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 22:57:09,843 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:57:09,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:57:09,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1185196984, now seen corresponding path program 1 times [2021-01-06 22:57:09,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:57:09,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611740202] [2021-01-06 22:57:09,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:57:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:09,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611740202] [2021-01-06 22:57:09,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 22:57:09,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 22:57:09,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275297660] [2021-01-06 22:57:09,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 22:57:09,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:57:09,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 22:57:09,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 22:57:09,930 INFO L87 Difference]: Start difference. First operand 294 states and 645 transitions. Second operand 3 states. [2021-01-06 22:57:09,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:57:09,973 INFO L93 Difference]: Finished difference Result 374 states and 816 transitions. [2021-01-06 22:57:09,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 22:57:09,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-01-06 22:57:09,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:57:09,976 INFO L225 Difference]: With dead ends: 374 [2021-01-06 22:57:09,977 INFO L226 Difference]: Without dead ends: 372 [2021-01-06 22:57:09,977 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 [2021-01-06 22:57:09,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-01-06 22:57:09,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 293. [2021-01-06 22:57:09,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2021-01-06 22:57:09,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 644 transitions. [2021-01-06 22:57:09,990 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 644 transitions. Word has length 17 [2021-01-06 22:57:09,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:57:09,991 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 644 transitions. [2021-01-06 22:57:09,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 22:57:09,991 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 644 transitions. [2021-01-06 22:57:09,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-01-06 22:57:09,993 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:57:09,993 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-01-06 22:57:09,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 22:57:09,993 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:57:09,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:57:09,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1834104763, now seen corresponding path program 2 times [2021-01-06 22:57:09,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:57:09,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468878499] [2021-01-06 22:57:09,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:57:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:10,121 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:10,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468878499] [2021-01-06 22:57:10,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986147425] [2021-01-06 22:57:10,122 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 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 [2021-01-06 22:57:10,277 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 22:57:10,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 22:57:10,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-06 22:57:10,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:57:10,341 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:10,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 22:57:10,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2021-01-06 22:57:10,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943550699] [2021-01-06 22:57:10,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 22:57:10,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:57:10,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 22:57:10,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-01-06 22:57:10,344 INFO L87 Difference]: Start difference. First operand 293 states and 644 transitions. Second operand 10 states. [2021-01-06 22:57:10,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:57:10,506 INFO L93 Difference]: Finished difference Result 546 states and 1160 transitions. [2021-01-06 22:57:10,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-06 22:57:10,508 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2021-01-06 22:57:10,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:57:10,512 INFO L225 Difference]: With dead ends: 546 [2021-01-06 22:57:10,513 INFO L226 Difference]: Without dead ends: 546 [2021-01-06 22:57:10,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-01-06 22:57:10,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2021-01-06 22:57:10,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 370. [2021-01-06 22:57:10,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2021-01-06 22:57:10,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 815 transitions. [2021-01-06 22:57:10,543 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 815 transitions. Word has length 20 [2021-01-06 22:57:10,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:57:10,545 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 815 transitions. [2021-01-06 22:57:10,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 22:57:10,546 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 815 transitions. [2021-01-06 22:57:10,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 22:57:10,547 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:57:10,547 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] [2021-01-06 22:57:10,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 22:57:10,766 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:57:10,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:57:10,767 INFO L82 PathProgramCache]: Analyzing trace with hash -269757217, now seen corresponding path program 1 times [2021-01-06 22:57:10,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:57:10,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756898328] [2021-01-06 22:57:10,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:57:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:11,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:11,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756898328] [2021-01-06 22:57:11,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 22:57:11,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-01-06 22:57:11,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384521435] [2021-01-06 22:57:11,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-01-06 22:57:11,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:57:11,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-01-06 22:57:11,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-01-06 22:57:11,263 INFO L87 Difference]: Start difference. First operand 370 states and 815 transitions. Second operand 14 states. [2021-01-06 22:57:12,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:57:12,625 INFO L93 Difference]: Finished difference Result 705 states and 1490 transitions. [2021-01-06 22:57:12,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-06 22:57:12,626 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2021-01-06 22:57:12,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:57:12,630 INFO L225 Difference]: With dead ends: 705 [2021-01-06 22:57:12,631 INFO L226 Difference]: Without dead ends: 627 [2021-01-06 22:57:12,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=132, Invalid=624, Unknown=0, NotChecked=0, Total=756 [2021-01-06 22:57:12,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-01-06 22:57:12,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 420. [2021-01-06 22:57:12,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2021-01-06 22:57:12,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 926 transitions. [2021-01-06 22:57:12,648 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 926 transitions. Word has length 21 [2021-01-06 22:57:12,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:57:12,649 INFO L481 AbstractCegarLoop]: Abstraction has 420 states and 926 transitions. [2021-01-06 22:57:12,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-01-06 22:57:12,649 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 926 transitions. [2021-01-06 22:57:12,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-01-06 22:57:12,650 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:57:12,651 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2021-01-06 22:57:12,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 22:57:12,651 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:57:12,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:57:12,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1764992070, now seen corresponding path program 3 times [2021-01-06 22:57:12,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:57:12,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421381209] [2021-01-06 22:57:12,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:57:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:12,793 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:12,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421381209] [2021-01-06 22:57:12,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753007383] [2021-01-06 22:57:12,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2021-01-06 22:57:12,932 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-01-06 22:57:12,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 22:57:12,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 22:57:12,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:57:12,996 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:12,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 22:57:12,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 12 [2021-01-06 22:57:12,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077032063] [2021-01-06 22:57:12,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-01-06 22:57:12,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:57:12,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-01-06 22:57:12,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-01-06 22:57:12,998 INFO L87 Difference]: Start difference. First operand 420 states and 926 transitions. Second operand 13 states. [2021-01-06 22:57:13,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:57:13,193 INFO L93 Difference]: Finished difference Result 765 states and 1611 transitions. [2021-01-06 22:57:13,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-06 22:57:13,194 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2021-01-06 22:57:13,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:57:13,199 INFO L225 Difference]: With dead ends: 765 [2021-01-06 22:57:13,199 INFO L226 Difference]: Without dead ends: 765 [2021-01-06 22:57:13,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2021-01-06 22:57:13,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2021-01-06 22:57:13,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 497. [2021-01-06 22:57:13,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2021-01-06 22:57:13,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 1097 transitions. [2021-01-06 22:57:13,220 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 1097 transitions. Word has length 27 [2021-01-06 22:57:13,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:57:13,220 INFO L481 AbstractCegarLoop]: Abstraction has 497 states and 1097 transitions. [2021-01-06 22:57:13,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-01-06 22:57:13,220 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 1097 transitions. [2021-01-06 22:57:13,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-06 22:57:13,222 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:57:13,222 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:57:13,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 22:57:13,437 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:57:13,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:57:13,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1200998610, now seen corresponding path program 2 times [2021-01-06 22:57:13,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:57:13,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975508257] [2021-01-06 22:57:13,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:57:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:13,964 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:13,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975508257] [2021-01-06 22:57:13,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874214575] [2021-01-06 22:57:13,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 22:57:14,073 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 22:57:14,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 22:57:14,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 46 conjunts are in the unsatisfiable core [2021-01-06 22:57:14,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:57:14,343 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 19 treesize of output 15 [2021-01-06 22:57:14,344 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:57:14,377 INFO L625 ElimStorePlain]: treesize reduction 13, result has 78.3 percent of original size [2021-01-06 22:57:14,382 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:57:14,382 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:52 [2021-01-06 22:57:14,792 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 22:57:14,815 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 30 [2021-01-06 22:57:14,863 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: variable got div captured [2021-01-06 22:57:14,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 22:57:14,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-01-06 22:57:14,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142119255] [2021-01-06 22:57:14,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-06 22:57:14,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:57:14,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-06 22:57:14,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2021-01-06 22:57:14,865 INFO L87 Difference]: Start difference. First operand 497 states and 1097 transitions. Second operand 16 states. [2021-01-06 22:57:16,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:57:16,023 INFO L93 Difference]: Finished difference Result 793 states and 1703 transitions. [2021-01-06 22:57:16,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-06 22:57:16,023 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 28 [2021-01-06 22:57:16,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:57:16,029 INFO L225 Difference]: With dead ends: 793 [2021-01-06 22:57:16,029 INFO L226 Difference]: Without dead ends: 791 [2021-01-06 22:57:16,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=131, Invalid=1059, Unknown=0, NotChecked=0, Total=1190 [2021-01-06 22:57:16,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2021-01-06 22:57:16,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 592. [2021-01-06 22:57:16,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2021-01-06 22:57:16,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 1304 transitions. [2021-01-06 22:57:16,050 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 1304 transitions. Word has length 28 [2021-01-06 22:57:16,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:57:16,051 INFO L481 AbstractCegarLoop]: Abstraction has 592 states and 1304 transitions. [2021-01-06 22:57:16,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-01-06 22:57:16,051 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 1304 transitions. [2021-01-06 22:57:16,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-01-06 22:57:16,053 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:57:16,053 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:57:16,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 22:57:16,267 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:57:16,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:57:16,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1870823101, now seen corresponding path program 1 times [2021-01-06 22:57:16,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:57:16,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274161439] [2021-01-06 22:57:16,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:57:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:16,363 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 22:57:16,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274161439] [2021-01-06 22:57:16,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269997030] [2021-01-06 22:57:16,363 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 [2021-01-06 22:57:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:16,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 22:57:16,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:57:16,528 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 22:57:16,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 22:57:16,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-01-06 22:57:16,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428481538] [2021-01-06 22:57:16,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 22:57:16,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:57:16,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 22:57:16,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-01-06 22:57:16,535 INFO L87 Difference]: Start difference. First operand 592 states and 1304 transitions. Second operand 11 states. [2021-01-06 22:57:16,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:57:16,720 INFO L93 Difference]: Finished difference Result 870 states and 1848 transitions. [2021-01-06 22:57:16,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 22:57:16,720 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2021-01-06 22:57:16,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:57:16,726 INFO L225 Difference]: With dead ends: 870 [2021-01-06 22:57:16,727 INFO L226 Difference]: Without dead ends: 870 [2021-01-06 22:57:16,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2021-01-06 22:57:16,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2021-01-06 22:57:16,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 622. [2021-01-06 22:57:16,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2021-01-06 22:57:16,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1393 transitions. [2021-01-06 22:57:16,750 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1393 transitions. Word has length 31 [2021-01-06 22:57:16,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:57:16,751 INFO L481 AbstractCegarLoop]: Abstraction has 622 states and 1393 transitions. [2021-01-06 22:57:16,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 22:57:16,751 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1393 transitions. [2021-01-06 22:57:16,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-01-06 22:57:16,754 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:57:16,754 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2021-01-06 22:57:16,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-01-06 22:57:16,969 INFO L429 AbstractCegarLoop]: === Iteration 11 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:57:16,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:57:16,969 INFO L82 PathProgramCache]: Analyzing trace with hash -463202981, now seen corresponding path program 4 times [2021-01-06 22:57:16,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:57:16,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027170640] [2021-01-06 22:57:16,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:57:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:17,163 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:17,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027170640] [2021-01-06 22:57:17,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480077478] [2021-01-06 22:57:17,164 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-01-06 22:57:17,287 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 22:57:17,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 22:57:17,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 10 conjunts are in the unsatisfiable core [2021-01-06 22:57:17,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:57:17,357 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:17,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 22:57:17,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 15 [2021-01-06 22:57:17,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301577371] [2021-01-06 22:57:17,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-06 22:57:17,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:57:17,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-06 22:57:17,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-01-06 22:57:17,362 INFO L87 Difference]: Start difference. First operand 622 states and 1393 transitions. Second operand 16 states. [2021-01-06 22:57:17,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:57:17,596 INFO L93 Difference]: Finished difference Result 986 states and 2108 transitions. [2021-01-06 22:57:17,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-06 22:57:17,597 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 34 [2021-01-06 22:57:17,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:57:17,603 INFO L225 Difference]: With dead ends: 986 [2021-01-06 22:57:17,603 INFO L226 Difference]: Without dead ends: 986 [2021-01-06 22:57:17,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-01-06 22:57:17,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2021-01-06 22:57:17,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 699. [2021-01-06 22:57:17,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2021-01-06 22:57:17,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1564 transitions. [2021-01-06 22:57:17,629 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1564 transitions. Word has length 34 [2021-01-06 22:57:17,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:57:17,630 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 1564 transitions. [2021-01-06 22:57:17,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-01-06 22:57:17,630 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1564 transitions. [2021-01-06 22:57:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-01-06 22:57:17,632 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:57:17,632 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:57:17,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 22:57:17,846 INFO L429 AbstractCegarLoop]: === Iteration 12 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:57:17,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:57:17,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1205235199, now seen corresponding path program 3 times [2021-01-06 22:57:17,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:57:17,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795902239] [2021-01-06 22:57:17,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:57:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:18,345 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:18,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795902239] [2021-01-06 22:57:18,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003872325] [2021-01-06 22:57:18,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2021-01-06 22:57:18,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-01-06 22:57:18,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 22:57:18,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 46 conjunts are in the unsatisfiable core [2021-01-06 22:57:18,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:57:18,635 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 19 treesize of output 15 [2021-01-06 22:57:18,636 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:57:18,666 INFO L625 ElimStorePlain]: treesize reduction 13, result has 78.3 percent of original size [2021-01-06 22:57:18,672 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:57:18,673 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:52 [2021-01-06 22:57:19,109 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 22:57:19,139 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 78 treesize of output 30 [2021-01-06 22:57:19,146 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: variable got div captured [2021-01-06 22:57:19,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 22:57:19,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2021-01-06 22:57:19,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438074401] [2021-01-06 22:57:19,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 22:57:19,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:57:19,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 22:57:19,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2021-01-06 22:57:19,150 INFO L87 Difference]: Start difference. First operand 699 states and 1564 transitions. Second operand 19 states. [2021-01-06 22:57:20,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:57:20,911 INFO L93 Difference]: Finished difference Result 1048 states and 2246 transitions. [2021-01-06 22:57:20,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-01-06 22:57:20,912 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 35 [2021-01-06 22:57:20,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:57:20,919 INFO L225 Difference]: With dead ends: 1048 [2021-01-06 22:57:20,919 INFO L226 Difference]: Without dead ends: 1042 [2021-01-06 22:57:20,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=213, Invalid=1679, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 22:57:20,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2021-01-06 22:57:20,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 743. [2021-01-06 22:57:20,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 743 states. [2021-01-06 22:57:20,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1686 transitions. [2021-01-06 22:57:20,945 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1686 transitions. Word has length 35 [2021-01-06 22:57:20,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:57:20,946 INFO L481 AbstractCegarLoop]: Abstraction has 743 states and 1686 transitions. [2021-01-06 22:57:20,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 22:57:20,946 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1686 transitions. [2021-01-06 22:57:20,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-01-06 22:57:20,948 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:57:20,948 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:57:21,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 22:57:21,162 INFO L429 AbstractCegarLoop]: === Iteration 13 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:57:21,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:57:21,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1494502908, now seen corresponding path program 1 times [2021-01-06 22:57:21,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:57:21,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516180088] [2021-01-06 22:57:21,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:57:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:21,884 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:21,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516180088] [2021-01-06 22:57:21,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537541406] [2021-01-06 22:57:21,886 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 [2021-01-06 22:57:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:57:21,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 63 conjunts are in the unsatisfiable core [2021-01-06 22:57:21,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:57:22,160 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 19 treesize of output 15 [2021-01-06 22:57:22,161 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:57:22,194 INFO L625 ElimStorePlain]: treesize reduction 13, result has 78.3 percent of original size [2021-01-06 22:57:22,198 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:57:22,198 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:52 [2021-01-06 22:57:22,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:57:22,497 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 71 treesize of output 43 [2021-01-06 22:57:22,499 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:57:22,515 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:57:22,517 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:57:22,518 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:56 [2021-01-06 22:57:23,059 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 22:57:23,075 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 78 treesize of output 30 [2021-01-06 22:57:23,172 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:57:23,496 INFO L757 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:57:24,093 INFO L757 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:57:25,107 INFO L757 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:57:26,341 INFO L757 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:57:27,742 INFO L757 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:57:29,222 INFO L757 QuantifierPusher]: Run 70 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:57:30,043 INFO L757 QuantifierPusher]: Run 80 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:57:31,199 INFO L547 ElimStorePlain]: Start of recursive call 2: 32 dim-0 vars, End of recursive call: 32 dim-0 vars, and 1 xjuncts. [2021-01-06 22:57:31,239 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 80 treesize of output 32 [2021-01-06 22:57:31,323 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:57:31,569 INFO L757 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:57:31,819 INFO L757 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:57:32,093 INFO L757 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:57:32,300 INFO L547 ElimStorePlain]: Start of recursive call 3: 13 dim-0 vars, End of recursive call: 13 dim-0 vars, and 1 xjuncts. [2021-01-06 22:57:36,014 WARN L197 SmtUtils]: Spent 3.71 s on a formula simplification. DAG size of input: 345 DAG size of output: 194 [2021-01-06 22:57:36,016 INFO L625 ElimStorePlain]: treesize reduction 581, result has 54.6 percent of original size [2021-01-06 22:57:36,257 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 32 dim-0 vars, and 1 xjuncts. [2021-01-06 22:57:36,258 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:159, output treesize:700 [2021-01-06 22:57:37,346 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2021-01-06 22:57:37,365 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:57:37,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 22:57:37,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 34 [2021-01-06 22:57:37,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392222989] [2021-01-06 22:57:37,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-01-06 22:57:37,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:57:37,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-01-06 22:57:37,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1097, Unknown=0, NotChecked=0, Total=1190 [2021-01-06 22:57:37,370 INFO L87 Difference]: Start difference. First operand 743 states and 1686 transitions. Second operand 35 states. [2021-01-06 22:57:39,049 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2021-01-06 22:57:39,766 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2021-01-06 22:57:45,470 WARN L197 SmtUtils]: Spent 4.69 s on a formula simplification. DAG size of input: 236 DAG size of output: 234 [2021-01-06 22:57:46,006 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2021-01-06 22:57:46,234 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-01-06 22:57:46,523 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2021-01-06 22:57:46,866 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2021-01-06 22:57:47,484 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2021-01-06 22:57:48,056 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-01-06 22:57:48,527 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2021-01-06 22:57:48,699 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-01-06 22:57:55,724 WARN L197 SmtUtils]: Spent 6.23 s on a formula simplification. DAG size of input: 261 DAG size of output: 260 [2021-01-06 22:57:55,952 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2021-01-06 22:57:56,560 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-01-06 22:57:56,831 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-01-06 22:57:57,165 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2021-01-06 22:57:57,499 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2021-01-06 22:57:57,824 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-06 22:57:58,058 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-01-06 22:57:58,628 WARN L197 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2021-01-06 22:57:58,984 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-01-06 22:57:59,230 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-01-06 22:57:59,477 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-01-06 22:57:59,868 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-01-06 22:58:00,184 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-01-06 22:58:00,514 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-01-06 22:58:00,710 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-01-06 22:58:01,003 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-06 22:58:01,368 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-06 22:58:03,123 WARN L197 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 253 [2021-01-06 22:58:03,451 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2021-01-06 22:58:03,735 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2021-01-06 22:58:04,520 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2021-01-06 22:58:04,899 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2021-01-06 22:58:05,160 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-01-06 22:58:05,494 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-01-06 22:58:05,753 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2021-01-06 22:58:06,063 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-01-06 22:58:06,377 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-01-06 22:58:06,783 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-01-06 22:58:07,090 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2021-01-06 22:58:07,531 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2021-01-06 22:58:07,816 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2021-01-06 22:58:08,354 WARN L197 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2021-01-06 22:58:09,161 WARN L197 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2021-01-06 22:58:09,639 WARN L197 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2021-01-06 22:58:09,926 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2021-01-06 22:58:11,542 WARN L197 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-01-06 22:58:12,062 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2021-01-06 22:58:12,445 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2021-01-06 22:58:12,782 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-01-06 22:58:13,439 WARN L197 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2021-01-06 22:58:14,283 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2021-01-06 22:58:14,466 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-01-06 22:58:14,747 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-01-06 22:58:15,160 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2021-01-06 22:58:15,753 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-01-06 22:58:16,091 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-01-06 22:58:16,439 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2021-01-06 22:58:16,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:58:16,444 INFO L93 Difference]: Finished difference Result 2931 states and 6267 transitions. [2021-01-06 22:58:16,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-01-06 22:58:16,444 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 36 [2021-01-06 22:58:16,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:58:16,459 INFO L225 Difference]: With dead ends: 2931 [2021-01-06 22:58:16,459 INFO L226 Difference]: Without dead ends: 2742 [2021-01-06 22:58:16,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4311 ImplicationChecksByTransitivity, 34.6s TimeCoverageRelationStatistics Valid=1430, Invalid=12612, Unknown=0, NotChecked=0, Total=14042 [2021-01-06 22:58:16,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2021-01-06 22:58:16,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 922. [2021-01-06 22:58:16,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 922 states. [2021-01-06 22:58:16,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 2140 transitions. [2021-01-06 22:58:16,509 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 2140 transitions. Word has length 36 [2021-01-06 22:58:16,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:58:16,509 INFO L481 AbstractCegarLoop]: Abstraction has 922 states and 2140 transitions. [2021-01-06 22:58:16,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2021-01-06 22:58:16,509 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 2140 transitions. [2021-01-06 22:58:16,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-06 22:58:16,511 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:58:16,512 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2021-01-06 22:58:16,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-01-06 22:58:16,726 INFO L429 AbstractCegarLoop]: === Iteration 14 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:58:16,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:58:16,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1568354982, now seen corresponding path program 5 times [2021-01-06 22:58:16,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:58:16,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118905672] [2021-01-06 22:58:16,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:58:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:58:16,853 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 56 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:58:16,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118905672] [2021-01-06 22:58:16,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759973067] [2021-01-06 22:58:16,854 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2021-01-06 22:58:17,051 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-01-06 22:58:17,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 22:58:17,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 7 conjunts are in the unsatisfiable core [2021-01-06 22:58:17,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:58:17,134 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:58:17,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 22:58:17,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2021-01-06 22:58:17,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677891320] [2021-01-06 22:58:17,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 22:58:17,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:58:17,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 22:58:17,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-01-06 22:58:17,136 INFO L87 Difference]: Start difference. First operand 922 states and 2140 transitions. Second operand 8 states. [2021-01-06 22:58:17,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:58:17,192 INFO L93 Difference]: Finished difference Result 1915 states and 4166 transitions. [2021-01-06 22:58:17,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 22:58:17,194 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2021-01-06 22:58:17,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:58:17,200 INFO L225 Difference]: With dead ends: 1915 [2021-01-06 22:58:17,201 INFO L226 Difference]: Without dead ends: 1165 [2021-01-06 22:58:17,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-01-06 22:58:17,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2021-01-06 22:58:17,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 946. [2021-01-06 22:58:17,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 946 states. [2021-01-06 22:58:17,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1992 transitions. [2021-01-06 22:58:17,231 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1992 transitions. Word has length 41 [2021-01-06 22:58:17,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:58:17,231 INFO L481 AbstractCegarLoop]: Abstraction has 946 states and 1992 transitions. [2021-01-06 22:58:17,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 22:58:17,232 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1992 transitions. [2021-01-06 22:58:17,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-06 22:58:17,234 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:58:17,234 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:58:17,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 22:58:17,449 INFO L429 AbstractCegarLoop]: === Iteration 15 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:58:17,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:58:17,450 INFO L82 PathProgramCache]: Analyzing trace with hash -682413469, now seen corresponding path program 2 times [2021-01-06 22:58:17,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:58:17,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54791522] [2021-01-06 22:58:17,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:58:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:58:17,667 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 22:58:17,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54791522] [2021-01-06 22:58:17,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634162833] [2021-01-06 22:58:17,667 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 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 [2021-01-06 22:58:17,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 22:58:17,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 22:58:17,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 22:58:17,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:58:17,863 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 22:58:17,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 22:58:17,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 16 [2021-01-06 22:58:17,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698886995] [2021-01-06 22:58:17,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-01-06 22:58:17,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:58:17,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-01-06 22:58:17,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2021-01-06 22:58:17,864 INFO L87 Difference]: Start difference. First operand 946 states and 1992 transitions. Second operand 17 states. [2021-01-06 22:58:18,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:58:18,285 INFO L93 Difference]: Finished difference Result 1715 states and 3449 transitions. [2021-01-06 22:58:18,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-06 22:58:18,287 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 45 [2021-01-06 22:58:18,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:58:18,295 INFO L225 Difference]: With dead ends: 1715 [2021-01-06 22:58:18,295 INFO L226 Difference]: Without dead ends: 1660 [2021-01-06 22:58:18,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=583, Unknown=0, NotChecked=0, Total=756 [2021-01-06 22:58:18,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2021-01-06 22:58:18,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 929. [2021-01-06 22:58:18,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2021-01-06 22:58:18,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1940 transitions. [2021-01-06 22:58:18,329 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1940 transitions. Word has length 45 [2021-01-06 22:58:18,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:58:18,329 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1940 transitions. [2021-01-06 22:58:18,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-01-06 22:58:18,329 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1940 transitions. [2021-01-06 22:58:18,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-06 22:58:18,331 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:58:18,331 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:58:18,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-01-06 22:58:18,547 INFO L429 AbstractCegarLoop]: === Iteration 16 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:58:18,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:58:18,548 INFO L82 PathProgramCache]: Analyzing trace with hash -299101981, now seen corresponding path program 3 times [2021-01-06 22:58:18,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:58:18,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110308563] [2021-01-06 22:58:18,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:58:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:58:18,730 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 43 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-01-06 22:58:18,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110308563] [2021-01-06 22:58:18,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652966834] [2021-01-06 22:58:18,731 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2021-01-06 22:58:18,928 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-01-06 22:58:18,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 22:58:18,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 22:58:18,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:58:19,024 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 43 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-01-06 22:58:19,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 22:58:19,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 13 [2021-01-06 22:58:19,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195033376] [2021-01-06 22:58:19,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-01-06 22:58:19,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:58:19,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-01-06 22:58:19,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-01-06 22:58:19,027 INFO L87 Difference]: Start difference. First operand 929 states and 1940 transitions. Second operand 14 states. [2021-01-06 22:58:19,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:58:19,342 INFO L93 Difference]: Finished difference Result 1556 states and 3148 transitions. [2021-01-06 22:58:19,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-01-06 22:58:19,343 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 45 [2021-01-06 22:58:19,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:58:19,349 INFO L225 Difference]: With dead ends: 1556 [2021-01-06 22:58:19,350 INFO L226 Difference]: Without dead ends: 1476 [2021-01-06 22:58:19,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2021-01-06 22:58:19,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2021-01-06 22:58:19,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 959. [2021-01-06 22:58:19,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 959 states. [2021-01-06 22:58:19,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1995 transitions. [2021-01-06 22:58:19,379 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1995 transitions. Word has length 45 [2021-01-06 22:58:19,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:58:19,379 INFO L481 AbstractCegarLoop]: Abstraction has 959 states and 1995 transitions. [2021-01-06 22:58:19,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-01-06 22:58:19,379 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1995 transitions. [2021-01-06 22:58:19,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-06 22:58:19,381 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:58:19,381 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:58:19,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-01-06 22:58:19,596 INFO L429 AbstractCegarLoop]: === Iteration 17 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:58:19,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:58:19,598 INFO L82 PathProgramCache]: Analyzing trace with hash 361924815, now seen corresponding path program 4 times [2021-01-06 22:58:19,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:58:19,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861702213] [2021-01-06 22:58:19,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:58:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:58:19,813 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-06 22:58:19,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861702213] [2021-01-06 22:58:19,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319081271] [2021-01-06 22:58:19,813 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-01-06 22:58:19,922 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 22:58:19,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 22:58:19,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 22:58:19,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:58:19,983 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 43 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-01-06 22:58:19,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 22:58:19,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 14 [2021-01-06 22:58:19,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249046987] [2021-01-06 22:58:19,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-06 22:58:19,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:58:19,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-06 22:58:19,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2021-01-06 22:58:19,986 INFO L87 Difference]: Start difference. First operand 959 states and 1995 transitions. Second operand 15 states. [2021-01-06 22:58:20,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:58:20,277 INFO L93 Difference]: Finished difference Result 1368 states and 2742 transitions. [2021-01-06 22:58:20,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-01-06 22:58:20,278 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2021-01-06 22:58:20,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:58:20,282 INFO L225 Difference]: With dead ends: 1368 [2021-01-06 22:58:20,282 INFO L226 Difference]: Without dead ends: 1051 [2021-01-06 22:58:20,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-01-06 22:58:20,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2021-01-06 22:58:20,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 778. [2021-01-06 22:58:20,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2021-01-06 22:58:20,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1592 transitions. [2021-01-06 22:58:20,303 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1592 transitions. Word has length 45 [2021-01-06 22:58:20,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:58:20,304 INFO L481 AbstractCegarLoop]: Abstraction has 778 states and 1592 transitions. [2021-01-06 22:58:20,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-06 22:58:20,304 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1592 transitions. [2021-01-06 22:58:20,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-06 22:58:20,306 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:58:20,306 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:58:20,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-01-06 22:58:20,521 INFO L429 AbstractCegarLoop]: === Iteration 18 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:58:20,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:58:20,522 INFO L82 PathProgramCache]: Analyzing trace with hash -109679701, now seen corresponding path program 2 times [2021-01-06 22:58:20,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:58:20,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924261880] [2021-01-06 22:58:20,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:58:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:58:21,726 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:58:21,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924261880] [2021-01-06 22:58:21,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053579653] [2021-01-06 22:58:21,726 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 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 [2021-01-06 22:58:21,849 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 22:58:21,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 22:58:21,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 80 conjunts are in the unsatisfiable core [2021-01-06 22:58:21,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:58:22,064 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 19 treesize of output 15 [2021-01-06 22:58:22,065 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:58:22,114 INFO L625 ElimStorePlain]: treesize reduction 13, result has 78.3 percent of original size [2021-01-06 22:58:22,117 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:58:22,117 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:52 [2021-01-06 22:58:22,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:58:22,637 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 43 [2021-01-06 22:58:22,639 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:58:22,663 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:58:22,665 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:58:22,666 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:56 [2021-01-06 22:58:23,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:58:23,122 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 71 treesize of output 43 [2021-01-06 22:58:23,125 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:58:23,145 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:58:23,148 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:58:23,148 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:56 [2021-01-06 22:58:24,157 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 22:58:24,173 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 78 treesize of output 30 [2021-01-06 22:58:24,179 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: variable got div captured [2021-01-06 22:58:24,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 22:58:24,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2021-01-06 22:58:24,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966626463] [2021-01-06 22:58:24,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-06 22:58:24,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:58:24,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-06 22:58:24,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1774, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 22:58:24,181 INFO L87 Difference]: Start difference. First operand 778 states and 1592 transitions. Second operand 24 states. [2021-01-06 22:58:27,381 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-01-06 22:58:28,419 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-01-06 22:58:30,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:58:30,184 INFO L93 Difference]: Finished difference Result 1427 states and 2859 transitions. [2021-01-06 22:58:30,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-06 22:58:30,185 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 51 [2021-01-06 22:58:30,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:58:30,188 INFO L225 Difference]: With dead ends: 1427 [2021-01-06 22:58:30,188 INFO L226 Difference]: Without dead ends: 626 [2021-01-06 22:58:30,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1051 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=419, Invalid=4983, Unknown=0, NotChecked=0, Total=5402 [2021-01-06 22:58:30,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2021-01-06 22:58:30,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 560. [2021-01-06 22:58:30,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2021-01-06 22:58:30,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 1114 transitions. [2021-01-06 22:58:30,210 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 1114 transitions. Word has length 51 [2021-01-06 22:58:30,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:58:30,210 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 1114 transitions. [2021-01-06 22:58:30,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2021-01-06 22:58:30,210 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 1114 transitions. [2021-01-06 22:58:30,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-01-06 22:58:30,214 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:58:30,215 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:58:30,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-01-06 22:58:30,429 INFO L429 AbstractCegarLoop]: === Iteration 19 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:58:30,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:58:30,429 INFO L82 PathProgramCache]: Analyzing trace with hash -504161862, now seen corresponding path program 3 times [2021-01-06 22:58:30,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:58:30,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003047388] [2021-01-06 22:58:30,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:58:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:58:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:58:31,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003047388] [2021-01-06 22:58:31,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115033648] [2021-01-06 22:58:31,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2021-01-06 22:58:32,358 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-01-06 22:58:32,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 22:58:32,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 80 conjunts are in the unsatisfiable core [2021-01-06 22:58:32,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:58:32,625 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 19 treesize of output 15 [2021-01-06 22:58:32,626 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:58:32,677 INFO L625 ElimStorePlain]: treesize reduction 13, result has 78.3 percent of original size [2021-01-06 22:58:32,680 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:58:32,681 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:52 [2021-01-06 22:58:33,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:58:33,207 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 71 treesize of output 43 [2021-01-06 22:58:33,209 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:58:33,227 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:58:33,229 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:58:33,229 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:56 [2021-01-06 22:58:33,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:58:33,707 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 71 treesize of output 43 [2021-01-06 22:58:33,709 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:58:33,731 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:58:33,733 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:58:33,733 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:56 [2021-01-06 22:58:34,839 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 22:58:34,853 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 78 treesize of output 30 [2021-01-06 22:58:34,892 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:58:35,127 INFO L757 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:58:35,579 INFO L757 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:58:36,100 INFO L757 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:58:37,059 INFO L757 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:58:37,742 INFO L757 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:58:38,462 INFO L757 QuantifierPusher]: Run 70 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:58:39,699 INFO L757 QuantifierPusher]: Run 80 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:58:41,207 INFO L757 QuantifierPusher]: Run 90 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:58:43,070 INFO L757 QuantifierPusher]: Run 100 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:58:44,442 INFO L757 QuantifierPusher]: Run 110 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:58:46,029 INFO L547 ElimStorePlain]: Start of recursive call 2: 37 dim-0 vars, End of recursive call: 37 dim-0 vars, and 1 xjuncts. [2021-01-06 22:58:46,057 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 80 treesize of output 32 [2021-01-06 22:58:46,065 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: variable got div captured [2021-01-06 22:58:46,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 22:58:46,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2021-01-06 22:58:46,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553986549] [2021-01-06 22:58:46,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-06 22:58:46,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:58:46,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-06 22:58:46,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1947, Unknown=0, NotChecked=0, Total=2070 [2021-01-06 22:58:46,068 INFO L87 Difference]: Start difference. First operand 560 states and 1114 transitions. Second operand 26 states. [2021-01-06 22:58:51,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:58:51,326 INFO L93 Difference]: Finished difference Result 931 states and 1837 transitions. [2021-01-06 22:58:51,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-01-06 22:58:51,327 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 58 [2021-01-06 22:58:51,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:58:51,332 INFO L225 Difference]: With dead ends: 931 [2021-01-06 22:58:51,332 INFO L226 Difference]: Without dead ends: 931 [2021-01-06 22:58:51,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 833 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=302, Invalid=4254, Unknown=0, NotChecked=0, Total=4556 [2021-01-06 22:58:51,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2021-01-06 22:58:51,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 667. [2021-01-06 22:58:51,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2021-01-06 22:58:51,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1321 transitions. [2021-01-06 22:58:51,347 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1321 transitions. Word has length 58 [2021-01-06 22:58:51,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:58:51,348 INFO L481 AbstractCegarLoop]: Abstraction has 667 states and 1321 transitions. [2021-01-06 22:58:51,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2021-01-06 22:58:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1321 transitions. [2021-01-06 22:58:51,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-01-06 22:58:51,350 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:58:51,350 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:58:51,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 22:58:51,558 INFO L429 AbstractCegarLoop]: === Iteration 20 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:58:51,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:58:51,559 INFO L82 PathProgramCache]: Analyzing trace with hash -660058933, now seen corresponding path program 4 times [2021-01-06 22:58:51,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:58:51,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979173551] [2021-01-06 22:58:51,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:58:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:58:53,330 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:58:53,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979173551] [2021-01-06 22:58:53,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404739051] [2021-01-06 22:58:53,331 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-01-06 22:58:53,474 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 22:58:53,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 22:58:53,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 92 conjunts are in the unsatisfiable core [2021-01-06 22:58:53,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:58:53,563 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 [2021-01-06 22:58:53,564 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:58:53,578 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:58:53,579 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:58:53,579 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:28 [2021-01-06 22:58:53,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:58:53,807 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 30 treesize of output 25 [2021-01-06 22:58:53,810 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:58:53,834 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:58:53,836 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:58:53,837 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:45, output treesize:24 [2021-01-06 22:58:54,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:58:54,106 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 30 treesize of output 25 [2021-01-06 22:58:54,108 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:58:54,130 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:58:54,132 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:58:54,132 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:47, output treesize:26 [2021-01-06 22:58:54,422 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 22:58:54,424 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 22:58:54,425 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 22:58:54,438 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 22:58:54,440 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 22:58:54,441 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2021-01-06 22:58:54,448 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:58:54,455 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 22:58:54,457 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:58:54,458 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 39 treesize of output 22 [2021-01-06 22:58:54,470 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 22:58:54,543 INFO L625 ElimStorePlain]: treesize reduction 115, result has 23.3 percent of original size [2021-01-06 22:58:54,546 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:58:54,546 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:89, output treesize:29 [2021-01-06 22:58:54,679 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:58:54,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 22:58:54,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 33 [2021-01-06 22:58:54,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979301486] [2021-01-06 22:58:54,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-01-06 22:58:54,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:58:54,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-01-06 22:58:54,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1106, Unknown=0, NotChecked=0, Total=1190 [2021-01-06 22:58:54,681 INFO L87 Difference]: Start difference. First operand 667 states and 1321 transitions. Second operand 35 states. [2021-01-06 22:59:01,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:59:01,627 INFO L93 Difference]: Finished difference Result 1060 states and 2089 transitions. [2021-01-06 22:59:01,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-01-06 22:59:01,628 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 65 [2021-01-06 22:59:01,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:59:01,632 INFO L225 Difference]: With dead ends: 1060 [2021-01-06 22:59:01,632 INFO L226 Difference]: Without dead ends: 1060 [2021-01-06 22:59:01,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 54 SyntacticMatches, 9 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1021 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=346, Invalid=4210, Unknown=0, NotChecked=0, Total=4556 [2021-01-06 22:59:01,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2021-01-06 22:59:01,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 660. [2021-01-06 22:59:01,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2021-01-06 22:59:01,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 1310 transitions. [2021-01-06 22:59:01,646 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 1310 transitions. Word has length 65 [2021-01-06 22:59:01,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:59:01,647 INFO L481 AbstractCegarLoop]: Abstraction has 660 states and 1310 transitions. [2021-01-06 22:59:01,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2021-01-06 22:59:01,647 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 1310 transitions. [2021-01-06 22:59:01,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-01-06 22:59:01,648 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:59:01,648 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:59:01,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 22:59:01,849 INFO L429 AbstractCegarLoop]: === Iteration 21 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:59:01,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:59:01,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1205815440, now seen corresponding path program 5 times [2021-01-06 22:59:01,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:59:01,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062709041] [2021-01-06 22:59:01,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:59:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:59:03,800 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:59:03,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062709041] [2021-01-06 22:59:03,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749435516] [2021-01-06 22:59:03,800 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_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 [2021-01-06 22:59:03,952 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-01-06 22:59:03,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 22:59:03,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 101 conjunts are in the unsatisfiable core [2021-01-06 22:59:03,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:59:04,015 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 [2021-01-06 22:59:04,016 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:04,031 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:59:04,033 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:59:04,033 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:21 [2021-01-06 22:59:04,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:59:04,292 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 30 treesize of output 25 [2021-01-06 22:59:04,294 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:04,318 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:59:04,320 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:59:04,321 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:47, output treesize:26 [2021-01-06 22:59:04,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:59:04,572 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 30 treesize of output 25 [2021-01-06 22:59:04,575 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:04,595 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:59:04,597 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:59:04,597 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:45, output treesize:24 [2021-01-06 22:59:04,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:59:04,820 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 30 treesize of output 25 [2021-01-06 22:59:04,823 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:04,850 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:59:04,852 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:59:04,853 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:45, output treesize:24 [2021-01-06 22:59:05,106 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 22:59:05,107 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 22:59:05,108 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 22:59:05,119 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 22:59:05,120 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 22:59:05,121 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2021-01-06 22:59:05,124 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:05,130 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 22:59:05,133 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:59:05,134 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 39 treesize of output 22 [2021-01-06 22:59:05,139 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:05,206 INFO L625 ElimStorePlain]: treesize reduction 64, result has 27.3 percent of original size [2021-01-06 22:59:05,209 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:59:05,209 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:89, output treesize:18 [2021-01-06 22:59:05,338 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:59:05,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 22:59:05,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 35 [2021-01-06 22:59:05,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156606451] [2021-01-06 22:59:05,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-01-06 22:59:05,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:59:05,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-01-06 22:59:05,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1240, Unknown=0, NotChecked=0, Total=1332 [2021-01-06 22:59:05,341 INFO L87 Difference]: Start difference. First operand 660 states and 1310 transitions. Second operand 37 states. [2021-01-06 22:59:07,247 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2021-01-06 22:59:08,958 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2021-01-06 22:59:10,641 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2021-01-06 22:59:11,840 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 36 [2021-01-06 22:59:12,721 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 36 [2021-01-06 22:59:14,726 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2021-01-06 22:59:15,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:59:15,080 INFO L93 Difference]: Finished difference Result 1388 states and 2716 transitions. [2021-01-06 22:59:15,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-01-06 22:59:15,082 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 66 [2021-01-06 22:59:15,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:59:15,086 INFO L225 Difference]: With dead ends: 1388 [2021-01-06 22:59:15,086 INFO L226 Difference]: Without dead ends: 794 [2021-01-06 22:59:15,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 56 SyntacticMatches, 7 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1629 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=443, Invalid=6037, Unknown=0, NotChecked=0, Total=6480 [2021-01-06 22:59:15,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2021-01-06 22:59:15,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 724. [2021-01-06 22:59:15,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2021-01-06 22:59:15,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1410 transitions. [2021-01-06 22:59:15,102 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1410 transitions. Word has length 66 [2021-01-06 22:59:15,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:59:15,102 INFO L481 AbstractCegarLoop]: Abstraction has 724 states and 1410 transitions. [2021-01-06 22:59:15,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2021-01-06 22:59:15,102 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1410 transitions. [2021-01-06 22:59:15,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-01-06 22:59:15,104 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:59:15,104 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:59:15,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 22:59:15,309 INFO L429 AbstractCegarLoop]: === Iteration 22 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:59:15,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:59:15,310 INFO L82 PathProgramCache]: Analyzing trace with hash 876403361, now seen corresponding path program 6 times [2021-01-06 22:59:15,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:59:15,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664996972] [2021-01-06 22:59:15,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:59:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:59:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 22:59:17,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664996972] [2021-01-06 22:59:17,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393706516] [2021-01-06 22:59:17,399 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 [2021-01-06 22:59:17,858 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-01-06 22:59:17,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 22:59:17,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 97 conjunts are in the unsatisfiable core [2021-01-06 22:59:17,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:59:18,159 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 19 treesize of output 15 [2021-01-06 22:59:18,160 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:18,215 INFO L625 ElimStorePlain]: treesize reduction 13, result has 78.3 percent of original size [2021-01-06 22:59:18,218 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:59:18,218 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:52 [2021-01-06 22:59:18,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:59:18,870 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 43 [2021-01-06 22:59:18,872 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:18,895 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:59:18,897 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:59:18,898 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:56 [2021-01-06 22:59:19,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:59:19,460 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 71 treesize of output 43 [2021-01-06 22:59:19,462 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:19,491 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:59:19,494 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:59:19,494 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:56 [2021-01-06 22:59:20,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:59:20,100 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 71 treesize of output 43 [2021-01-06 22:59:20,102 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:20,127 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:59:20,130 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:59:20,130 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:56 [2021-01-06 22:59:21,682 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 22:59:21,702 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 78 treesize of output 30 [2021-01-06 22:59:21,708 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: variable got div captured [2021-01-06 22:59:21,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 22:59:21,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2021-01-06 22:59:21,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263545379] [2021-01-06 22:59:21,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-01-06 22:59:21,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:59:21,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-01-06 22:59:21,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=2928, Unknown=0, NotChecked=0, Total=3080 [2021-01-06 22:59:21,711 INFO L87 Difference]: Start difference. First operand 724 states and 1410 transitions. Second operand 31 states. [2021-01-06 22:59:29,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:59:29,771 INFO L93 Difference]: Finished difference Result 809 states and 1576 transitions. [2021-01-06 22:59:29,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-06 22:59:29,774 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 73 [2021-01-06 22:59:29,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:59:29,778 INFO L225 Difference]: With dead ends: 809 [2021-01-06 22:59:29,778 INFO L226 Difference]: Without dead ends: 809 [2021-01-06 22:59:29,780 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1191 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=341, Invalid=5979, Unknown=0, NotChecked=0, Total=6320 [2021-01-06 22:59:29,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2021-01-06 22:59:29,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 780. [2021-01-06 22:59:29,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2021-01-06 22:59:29,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1522 transitions. [2021-01-06 22:59:29,796 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1522 transitions. Word has length 73 [2021-01-06 22:59:29,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:59:29,797 INFO L481 AbstractCegarLoop]: Abstraction has 780 states and 1522 transitions. [2021-01-06 22:59:29,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2021-01-06 22:59:29,797 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1522 transitions. [2021-01-06 22:59:29,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-01-06 22:59:29,799 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:59:29,799 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:59:30,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-01-06 22:59:30,013 INFO L429 AbstractCegarLoop]: === Iteration 23 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:59:30,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:59:30,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1350172597, now seen corresponding path program 7 times [2021-01-06 22:59:30,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:59:30,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869377009] [2021-01-06 22:59:30,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:59:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:59:31,987 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 7 proven. 109 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 22:59:31,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869377009] [2021-01-06 22:59:31,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609767126] [2021-01-06 22:59:31,987 INFO L93 rtionOrderModulation]: Changing assertion order to 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 [2021-01-06 22:59:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:59:32,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 80 conjunts are in the unsatisfiable core [2021-01-06 22:59:32,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:59:32,450 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 19 treesize of output 15 [2021-01-06 22:59:32,452 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:32,518 INFO L625 ElimStorePlain]: treesize reduction 13, result has 78.3 percent of original size [2021-01-06 22:59:32,520 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:59:32,521 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:52 [2021-01-06 22:59:33,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:59:33,202 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 71 treesize of output 43 [2021-01-06 22:59:33,205 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:33,231 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:59:33,234 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:59:33,234 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:56 [2021-01-06 22:59:33,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:59:33,787 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 71 treesize of output 43 [2021-01-06 22:59:33,790 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:33,816 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:59:33,819 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:59:33,819 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:56 [2021-01-06 22:59:35,157 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 22:59:35,170 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 78 treesize of output 30 [2021-01-06 22:59:35,174 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: variable got div captured [2021-01-06 22:59:35,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 22:59:35,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2021-01-06 22:59:35,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419668909] [2021-01-06 22:59:35,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-01-06 22:59:35,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:59:35,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-01-06 22:59:35,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=2313, Unknown=0, NotChecked=0, Total=2450 [2021-01-06 22:59:35,176 INFO L87 Difference]: Start difference. First operand 780 states and 1522 transitions. Second operand 30 states. [2021-01-06 22:59:37,806 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2021-01-06 22:59:40,726 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2021-01-06 22:59:41,161 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-01-06 22:59:42,724 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-06 22:59:42,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 22:59:42,979 INFO L93 Difference]: Finished difference Result 990 states and 1914 transitions. [2021-01-06 22:59:42,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-06 22:59:42,982 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 73 [2021-01-06 22:59:42,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 22:59:42,985 INFO L225 Difference]: With dead ends: 990 [2021-01-06 22:59:42,985 INFO L226 Difference]: Without dead ends: 766 [2021-01-06 22:59:42,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1190 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=415, Invalid=5437, Unknown=0, NotChecked=0, Total=5852 [2021-01-06 22:59:42,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-01-06 22:59:42,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 766. [2021-01-06 22:59:43,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 766 states. [2021-01-06 22:59:43,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1499 transitions. [2021-01-06 22:59:43,002 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1499 transitions. Word has length 73 [2021-01-06 22:59:43,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 22:59:43,002 INFO L481 AbstractCegarLoop]: Abstraction has 766 states and 1499 transitions. [2021-01-06 22:59:43,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2021-01-06 22:59:43,002 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1499 transitions. [2021-01-06 22:59:43,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-01-06 22:59:43,005 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 22:59:43,005 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 22:59:43,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-01-06 22:59:43,212 INFO L429 AbstractCegarLoop]: === Iteration 24 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 22:59:43,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 22:59:43,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1002347937, now seen corresponding path program 8 times [2021-01-06 22:59:43,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 22:59:43,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369764129] [2021-01-06 22:59:43,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 22:59:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 22:59:45,079 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 1 proven. 111 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-01-06 22:59:45,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369764129] [2021-01-06 22:59:45,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654176203] [2021-01-06 22:59:45,080 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 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 [2021-01-06 22:59:45,218 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 22:59:45,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 22:59:45,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 83 conjunts are in the unsatisfiable core [2021-01-06 22:59:45,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 22:59:45,598 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 19 treesize of output 15 [2021-01-06 22:59:45,603 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:45,677 INFO L625 ElimStorePlain]: treesize reduction 13, result has 78.3 percent of original size [2021-01-06 22:59:45,680 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:59:45,680 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:52 [2021-01-06 22:59:46,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:59:46,405 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 71 treesize of output 43 [2021-01-06 22:59:46,412 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:46,442 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:59:46,445 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:59:46,446 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:56 [2021-01-06 22:59:47,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 22:59:47,104 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 71 treesize of output 43 [2021-01-06 22:59:47,107 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:47,140 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 22:59:47,144 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 22:59:47,144 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:56 [2021-01-06 22:59:48,885 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 22:59:48,887 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 22:59:48,900 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 80 treesize of output 32 [2021-01-06 22:59:48,924 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:59:48,926 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 22:59:48,931 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 78 treesize of output 30 [2021-01-06 22:59:48,982 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:59:49,066 INFO L757 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 22:59:49,140 INFO L547 ElimStorePlain]: Start of recursive call 3: 9 dim-0 vars, End of recursive call: 9 dim-0 vars, and 1 xjuncts. [2021-01-06 22:59:49,391 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-01-06 22:59:49,393 INFO L625 ElimStorePlain]: treesize reduction 46, result has 78.0 percent of original size [2021-01-06 22:59:49,421 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 9 dim-0 vars, and 1 xjuncts. [2021-01-06 22:59:49,421 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:159, output treesize:163 [2021-01-06 22:59:53,488 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 66 proven. 41 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-01-06 22:59:53,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 22:59:53,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 23] total 49 [2021-01-06 22:59:53,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685785769] [2021-01-06 22:59:53,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-01-06 22:59:53,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 22:59:53,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-01-06 22:59:53,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=2315, Unknown=1, NotChecked=0, Total=2450 [2021-01-06 22:59:53,490 INFO L87 Difference]: Start difference. First operand 766 states and 1499 transitions. Second operand 50 states. [2021-01-06 22:59:55,131 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2021-01-06 22:59:55,542 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2021-01-06 22:59:56,217 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2021-01-06 22:59:56,617 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2021-01-06 22:59:56,908 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2021-01-06 22:59:57,285 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2021-01-06 22:59:57,733 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2021-01-06 22:59:58,176 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-01-06 22:59:58,643 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-01-06 22:59:59,321 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2021-01-06 22:59:59,764 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-01-06 23:00:02,474 WARN L197 SmtUtils]: Spent 2.19 s on a formula simplification that was a NOOP. DAG size: 111 [2021-01-06 23:00:02,887 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2021-01-06 23:00:03,660 WARN L197 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-01-06 23:00:04,299 WARN L197 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2021-01-06 23:00:05,159 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-01-06 23:00:05,650 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-01-06 23:00:06,763 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-01-06 23:00:07,378 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-01-06 23:00:07,925 WARN L197 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2021-01-06 23:00:08,656 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-01-06 23:00:09,400 WARN L197 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 76 [2021-01-06 23:00:10,224 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-01-06 23:00:10,790 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-01-06 23:00:11,617 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2021-01-06 23:00:12,368 WARN L197 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-01-06 23:00:13,039 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-01-06 23:00:13,481 WARN L197 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-01-06 23:00:14,304 WARN L197 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-01-06 23:00:15,334 WARN L197 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2021-01-06 23:00:16,231 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2021-01-06 23:00:17,004 WARN L197 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2021-01-06 23:00:17,966 WARN L197 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-01-06 23:00:18,908 WARN L197 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 80 [2021-01-06 23:00:19,589 WARN L197 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-06 23:00:20,249 WARN L197 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-01-06 23:00:21,108 WARN L197 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2021-01-06 23:00:22,538 WARN L197 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 118 [2021-01-06 23:00:23,351 WARN L197 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-01-06 23:00:24,545 WARN L197 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2021-01-06 23:00:25,425 WARN L197 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2021-01-06 23:00:26,154 WARN L197 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2021-01-06 23:00:27,160 WARN L197 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 91 [2021-01-06 23:00:33,183 WARN L197 SmtUtils]: Spent 5.45 s on a formula simplification. DAG size of input: 130 DAG size of output: 129 [2021-01-06 23:00:33,894 WARN L197 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-01-06 23:00:35,348 WARN L197 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2021-01-06 23:00:36,021 WARN L197 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2021-01-06 23:00:36,921 WARN L197 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2021-01-06 23:00:37,645 WARN L197 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-01-06 23:00:38,644 WARN L197 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 97 [2021-01-06 23:00:39,436 WARN L197 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-01-06 23:00:40,192 WARN L197 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-01-06 23:00:41,061 WARN L197 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 78 [2021-01-06 23:00:41,543 WARN L197 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-01-06 23:00:42,435 WARN L197 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2021-01-06 23:00:43,212 WARN L197 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 116 [2021-01-06 23:00:44,364 WARN L197 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 136 [2021-01-06 23:00:45,500 WARN L197 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2021-01-06 23:00:46,425 WARN L197 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2021-01-06 23:00:47,027 WARN L197 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2021-01-06 23:00:47,871 WARN L197 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-06 23:00:48,612 WARN L197 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2021-01-06 23:00:49,431 WARN L197 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-01-06 23:00:50,455 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-01-06 23:00:51,404 WARN L197 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-01-06 23:00:53,932 WARN L197 SmtUtils]: Spent 2.19 s on a formula simplification that was a NOOP. DAG size: 104