/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 21:40:03,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 21:40:03,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 21:40:03,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 21:40:03,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 21:40:03,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 21:40:03,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 21:40:03,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 21:40:03,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 21:40:03,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 21:40:03,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 21:40:03,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 21:40:03,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 21:40:03,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 21:40:03,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 21:40:03,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 21:40:03,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 21:40:03,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 21:40:03,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 21:40:03,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 21:40:03,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 21:40:03,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 21:40:03,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 21:40:03,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 21:40:03,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 21:40:03,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 21:40:03,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 21:40:03,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 21:40:03,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 21:40:03,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 21:40:03,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 21:40:03,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 21:40:03,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 21:40:03,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 21:40:03,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 21:40:03,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 21:40:03,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-11-11 21:40:03,970 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 21:40:03,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 21:40:03,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 21:40:03,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 21:40:03,975 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 21:40:03,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 21:40:03,975 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 21:40:03,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 21:40:03,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 21:40:03,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 21:40:03,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 21:40:03,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 21:40:03,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 21:40:03,978 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 21:40:03,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 21:40:03,978 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 21:40:03,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 21:40:03,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 21:40:03,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 21:40:03,979 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 21:40:03,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 21:40:03,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 21:40:03,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 21:40:03,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 21:40:03,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 21:40:03,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 21:40:03,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 21:40:03,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 21:40:03,981 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/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 21:40:04,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 21:40:04,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 21:40:04,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 21:40:04,382 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 21:40:04,383 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 21:40:04,384 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2020-11-11 21:40:04,458 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cae00bb3/1f45ea9f91c44339997a1f499dc486d8/FLAG4e0280e1d [2020-11-11 21:40:05,145 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 21:40:05,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2020-11-11 21:40:05,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cae00bb3/1f45ea9f91c44339997a1f499dc486d8/FLAG4e0280e1d [2020-11-11 21:40:05,452 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cae00bb3/1f45ea9f91c44339997a1f499dc486d8 [2020-11-11 21:40:05,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 21:40:05,463 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 21:40:05,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 21:40:05,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 21:40:05,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 21:40:05,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:40:05" (1/1) ... [2020-11-11 21:40:05,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6415499b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:05, skipping insertion in model container [2020-11-11 21:40:05,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:40:05" (1/1) ... [2020-11-11 21:40:05,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 21:40:05,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 21:40:05,735 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-11 21:40:05,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 21:40:05,952 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 21:40:05,972 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-11 21:40:06,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 21:40:06,105 INFO L208 MainTranslator]: Completed translation [2020-11-11 21:40:06,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:06 WrapperNode [2020-11-11 21:40:06,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 21:40:06,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 21:40:06,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 21:40:06,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 21:40:06,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:06" (1/1) ... [2020-11-11 21:40:06,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:06" (1/1) ... [2020-11-11 21:40:06,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 21:40:06,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 21:40:06,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 21:40:06,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 21:40:06,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:06" (1/1) ... [2020-11-11 21:40:06,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:06" (1/1) ... [2020-11-11 21:40:06,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:06" (1/1) ... [2020-11-11 21:40:06,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:06" (1/1) ... [2020-11-11 21:40:06,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:06" (1/1) ... [2020-11-11 21:40:06,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:06" (1/1) ... [2020-11-11 21:40:06,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:06" (1/1) ... [2020-11-11 21:40:06,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 21:40:06,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 21:40:06,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 21:40:06,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 21:40:06,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 21:40:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-11 21:40:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 21:40:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 21:40:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2020-11-11 21:40:06,285 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2020-11-11 21:40:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 21:40:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 21:40:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 21:40:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 21:40:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 21:40:06,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 21:40:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2020-11-11 21:40:06,286 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2020-11-11 21:40:06,288 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 21:40:06,900 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 21:40:06,900 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-11 21:40:06,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:40:06 BoogieIcfgContainer [2020-11-11 21:40:06,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 21:40:06,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 21:40:06,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 21:40:06,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 21:40:06,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:40:05" (1/3) ... [2020-11-11 21:40:06,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@675f1fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:40:06, skipping insertion in model container [2020-11-11 21:40:06,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:06" (2/3) ... [2020-11-11 21:40:06,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@675f1fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:40:06, skipping insertion in model container [2020-11-11 21:40:06,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:40:06" (3/3) ... [2020-11-11 21:40:06,911 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2020-11-11 21:40:06,926 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 21:40:06,927 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 21:40:06,931 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 21:40:06,932 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 21:40:06,978 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,978 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,979 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,979 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,979 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,979 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,980 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,980 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,980 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,980 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,981 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,981 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,981 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,981 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,982 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,982 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,982 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,982 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,983 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,983 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,983 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,983 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,984 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,984 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,984 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,985 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,985 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,985 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,985 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,986 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,986 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,986 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,987 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,987 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,987 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,987 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,987 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,987 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,988 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,988 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,988 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,988 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,989 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,989 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,989 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,989 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,990 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,990 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,990 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,990 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,991 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,991 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,991 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,991 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,991 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,992 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,992 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,992 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,993 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,993 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,993 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,993 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,994 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,994 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,994 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,994 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,994 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,995 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,995 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,995 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,995 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,996 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,996 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,996 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,997 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,997 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,997 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,997 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,997 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,998 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,998 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,998 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,998 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,999 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,999 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,999 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:06,999 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,000 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,000 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,000 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,001 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,001 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,003 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,004 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,004 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,004 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,004 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,004 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,005 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,005 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,005 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,009 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,009 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,009 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,010 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,010 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,010 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,014 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,014 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,014 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,014 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,015 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,015 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,015 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,015 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,015 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,020 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,020 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,020 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,020 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,021 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,021 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:07,050 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2020-11-11 21:40:07,062 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-11 21:40:07,082 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 21:40:07,083 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 21:40:07,083 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 21:40:07,083 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 21:40:07,083 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 21:40:07,083 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 21:40:07,083 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 21:40:07,083 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 21:40:07,096 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-11 21:40:07,098 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 112 transitions, 292 flow [2020-11-11 21:40:07,101 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 112 transitions, 292 flow [2020-11-11 21:40:07,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 112 transitions, 292 flow [2020-11-11 21:40:07,168 INFO L129 PetriNetUnfolder]: 21/146 cut-off events. [2020-11-11 21:40:07,168 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2020-11-11 21:40:07,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 146 events. 21/146 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 354 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 99. Up to 12 conditions per place. [2020-11-11 21:40:07,180 INFO L116 LiptonReduction]: Number of co-enabled transitions 3184 [2020-11-11 21:40:08,100 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2020-11-11 21:40:11,823 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-11-11 21:40:12,006 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-11 21:40:12,486 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-11-11 21:40:12,657 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-11 21:40:12,784 INFO L131 LiptonReduction]: Checked pairs total: 19776 [2020-11-11 21:40:12,784 INFO L133 LiptonReduction]: Total number of compositions: 79 [2020-11-11 21:40:12,792 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 57 transitions, 182 flow [2020-11-11 21:40:13,180 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4306 states, 4302 states have (on average 3.6787540678754067) internal successors, (15826), 4305 states have internal predecessors, (15826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:13,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 4306 states, 4302 states have (on average 3.6787540678754067) internal successors, (15826), 4305 states have internal predecessors, (15826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:13,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-11 21:40:13,212 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:40:13,213 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:40:13,213 INFO L429 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-11 21:40:13,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:40:13,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1333241138, now seen corresponding path program 1 times [2020-11-11 21:40:13,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:40:13,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575850757] [2020-11-11 21:40:13,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:40:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:40:13,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:40:13,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575850757] [2020-11-11 21:40:13,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:40:13,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 21:40:13,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330657102] [2020-11-11 21:40:13,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 21:40:13,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:40:13,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 21:40:13,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 21:40:13,608 INFO L87 Difference]: Start difference. First operand has 4306 states, 4302 states have (on average 3.6787540678754067) internal successors, (15826), 4305 states have internal predecessors, (15826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:13,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:40:13,941 INFO L93 Difference]: Finished difference Result 9727 states and 31398 transitions. [2020-11-11 21:40:13,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 21:40:13,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2020-11-11 21:40:13,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:40:14,075 INFO L225 Difference]: With dead ends: 9727 [2020-11-11 21:40:14,075 INFO L226 Difference]: Without dead ends: 7325 [2020-11-11 21:40:14,076 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-11 21:40:14,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7325 states. [2020-11-11 21:40:14,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7325 to 4376. [2020-11-11 21:40:14,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4376 states, 4373 states have (on average 3.373199176766522) internal successors, (14751), 4375 states have internal predecessors, (14751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:14,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14751 transitions. [2020-11-11 21:40:14,389 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14751 transitions. Word has length 8 [2020-11-11 21:40:14,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:40:14,390 INFO L481 AbstractCegarLoop]: Abstraction has 4376 states and 14751 transitions. [2020-11-11 21:40:14,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14751 transitions. [2020-11-11 21:40:14,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-11 21:40:14,393 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:40:14,393 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:40:14,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 21:40:14,394 INFO L429 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-11 21:40:14,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:40:14,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1344465321, now seen corresponding path program 1 times [2020-11-11 21:40:14,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:40:14,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179553556] [2020-11-11 21:40:14,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:40:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:40:14,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:40:14,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179553556] [2020-11-11 21:40:14,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:40:14,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 21:40:14,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699131059] [2020-11-11 21:40:14,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 21:40:14,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:40:14,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 21:40:14,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 21:40:14,477 INFO L87 Difference]: Start difference. First operand 4376 states and 14751 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:14,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:40:14,607 INFO L93 Difference]: Finished difference Result 6872 states and 20348 transitions. [2020-11-11 21:40:14,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-11 21:40:14,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2020-11-11 21:40:14,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:40:14,658 INFO L225 Difference]: With dead ends: 6872 [2020-11-11 21:40:14,658 INFO L226 Difference]: Without dead ends: 6776 [2020-11-11 21:40:14,659 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 21:40:14,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6776 states. [2020-11-11 21:40:14,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6776 to 4772. [2020-11-11 21:40:14,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4772 states, 4762 states have (on average 3.0711885762284754) internal successors, (14625), 4771 states have internal predecessors, (14625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:14,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4772 states to 4772 states and 14625 transitions. [2020-11-11 21:40:14,874 INFO L78 Accepts]: Start accepts. Automaton has 4772 states and 14625 transitions. Word has length 10 [2020-11-11 21:40:14,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:40:14,874 INFO L481 AbstractCegarLoop]: Abstraction has 4772 states and 14625 transitions. [2020-11-11 21:40:14,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:14,874 INFO L276 IsEmpty]: Start isEmpty. Operand 4772 states and 14625 transitions. [2020-11-11 21:40:14,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-11 21:40:14,881 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:40:14,881 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:40:14,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 21:40:14,885 INFO L429 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-11 21:40:14,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:40:14,891 INFO L82 PathProgramCache]: Analyzing trace with hash 731163801, now seen corresponding path program 2 times [2020-11-11 21:40:14,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:40:14,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399932573] [2020-11-11 21:40:14,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:40:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:40:14,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:40:14,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399932573] [2020-11-11 21:40:14,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:40:14,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 21:40:14,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132048211] [2020-11-11 21:40:14,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 21:40:14,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:40:14,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 21:40:14,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 21:40:14,973 INFO L87 Difference]: Start difference. First operand 4772 states and 14625 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:15,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:40:15,012 INFO L93 Difference]: Finished difference Result 2244 states and 5528 transitions. [2020-11-11 21:40:15,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 21:40:15,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2020-11-11 21:40:15,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:40:15,024 INFO L225 Difference]: With dead ends: 2244 [2020-11-11 21:40:15,024 INFO L226 Difference]: Without dead ends: 2180 [2020-11-11 21:40:15,024 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 21:40:15,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2020-11-11 21:40:15,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2020-11-11 21:40:15,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2172 states have (on average 2.483425414364641) internal successors, (5394), 2179 states have internal predecessors, (5394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:15,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 5394 transitions. [2020-11-11 21:40:15,150 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 5394 transitions. Word has length 10 [2020-11-11 21:40:15,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:40:15,151 INFO L481 AbstractCegarLoop]: Abstraction has 2180 states and 5394 transitions. [2020-11-11 21:40:15,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:15,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 5394 transitions. [2020-11-11 21:40:15,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-11 21:40:15,152 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:40:15,152 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:40:15,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 21:40:15,153 INFO L429 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-11 21:40:15,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:40:15,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1789797320, now seen corresponding path program 1 times [2020-11-11 21:40:15,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:40:15,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254427101] [2020-11-11 21:40:15,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:40:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:40:15,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:40:15,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254427101] [2020-11-11 21:40:15,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:40:15,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 21:40:15,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495491851] [2020-11-11 21:40:15,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 21:40:15,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:40:15,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 21:40:15,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 21:40:15,210 INFO L87 Difference]: Start difference. First operand 2180 states and 5394 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:15,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:40:15,326 INFO L93 Difference]: Finished difference Result 2507 states and 6115 transitions. [2020-11-11 21:40:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 21:40:15,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2020-11-11 21:40:15,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:40:15,346 INFO L225 Difference]: With dead ends: 2507 [2020-11-11 21:40:15,346 INFO L226 Difference]: Without dead ends: 1814 [2020-11-11 21:40:15,347 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-11 21:40:15,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2020-11-11 21:40:15,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1440. [2020-11-11 21:40:15,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1438 states have (on average 2.478442280945758) internal successors, (3564), 1439 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:15,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 3564 transitions. [2020-11-11 21:40:15,404 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 3564 transitions. Word has length 12 [2020-11-11 21:40:15,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:40:15,406 INFO L481 AbstractCegarLoop]: Abstraction has 1440 states and 3564 transitions. [2020-11-11 21:40:15,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:15,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 3564 transitions. [2020-11-11 21:40:15,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-11 21:40:15,408 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:40:15,409 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:40:15,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 21:40:15,409 INFO L429 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-11 21:40:15,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:40:15,410 INFO L82 PathProgramCache]: Analyzing trace with hash 588331266, now seen corresponding path program 1 times [2020-11-11 21:40:15,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:40:15,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977009054] [2020-11-11 21:40:15,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:40:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:40:15,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:40:15,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977009054] [2020-11-11 21:40:15,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:40:15,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-11 21:40:15,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654368534] [2020-11-11 21:40:15,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-11 21:40:15,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:40:15,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-11 21:40:15,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-11 21:40:15,531 INFO L87 Difference]: Start difference. First operand 1440 states and 3564 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:15,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:40:15,606 INFO L93 Difference]: Finished difference Result 1734 states and 4180 transitions. [2020-11-11 21:40:15,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 21:40:15,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2020-11-11 21:40:15,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:40:15,612 INFO L225 Difference]: With dead ends: 1734 [2020-11-11 21:40:15,612 INFO L226 Difference]: Without dead ends: 1392 [2020-11-11 21:40:15,613 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-11 21:40:15,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2020-11-11 21:40:15,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1260. [2020-11-11 21:40:15,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 1258 states have (on average 2.3823529411764706) internal successors, (2997), 1259 states have internal predecessors, (2997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:15,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 2997 transitions. [2020-11-11 21:40:15,656 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 2997 transitions. Word has length 19 [2020-11-11 21:40:15,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:40:15,656 INFO L481 AbstractCegarLoop]: Abstraction has 1260 states and 2997 transitions. [2020-11-11 21:40:15,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:15,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 2997 transitions. [2020-11-11 21:40:15,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-11 21:40:15,658 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:40:15,658 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:40:15,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 21:40:15,659 INFO L429 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-11 21:40:15,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:40:15,659 INFO L82 PathProgramCache]: Analyzing trace with hash 942794222, now seen corresponding path program 2 times [2020-11-11 21:40:15,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:40:15,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990285611] [2020-11-11 21:40:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:40:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:40:15,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:40:15,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990285611] [2020-11-11 21:40:15,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:40:15,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-11 21:40:15,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453901393] [2020-11-11 21:40:15,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-11 21:40:15,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:40:15,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-11 21:40:15,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-11 21:40:15,715 INFO L87 Difference]: Start difference. First operand 1260 states and 2997 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:15,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:40:15,754 INFO L93 Difference]: Finished difference Result 414 states and 743 transitions. [2020-11-11 21:40:15,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 21:40:15,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2020-11-11 21:40:15,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:40:15,755 INFO L225 Difference]: With dead ends: 414 [2020-11-11 21:40:15,755 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 21:40:15,756 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-11 21:40:15,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 21:40:15,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 21:40:15,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:15,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 21:40:15,757 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-11-11 21:40:15,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:40:15,757 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 21:40:15,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:15,757 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 21:40:15,757 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 21:40:15,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-11 21:40:15,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 09:40:15 BasicIcfg [2020-11-11 21:40:15,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 21:40:15,763 INFO L168 Benchmark]: Toolchain (without parser) took 10304.44 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 276.2 MB in the beginning and 302.2 MB in the end (delta: -26.0 MB). Peak memory consumption was 109.5 MB. Max. memory is 16.0 GB. [2020-11-11 21:40:15,763 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 272.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 21:40:15,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.51 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 245.1 MB in the end (delta: 30.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-11 21:40:15,765 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.59 ms. Allocated memory is still 302.0 MB. Free memory was 245.1 MB in the beginning and 243.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 21:40:15,766 INFO L168 Benchmark]: Boogie Preprocessor took 27.71 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 241.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 21:40:15,767 INFO L168 Benchmark]: RCFGBuilder took 714.71 ms. Allocated memory is still 302.0 MB. Free memory was 241.6 MB in the beginning and 255.2 MB in the end (delta: -13.6 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2020-11-11 21:40:15,767 INFO L168 Benchmark]: TraceAbstraction took 8856.69 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 254.1 MB in the beginning and 302.2 MB in the end (delta: -48.1 MB). Peak memory consumption was 86.1 MB. Max. memory is 16.0 GB. [2020-11-11 21:40:15,771 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 272.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 639.51 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 245.1 MB in the end (delta: 30.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.59 ms. Allocated memory is still 302.0 MB. Free memory was 245.1 MB in the beginning and 243.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.71 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 241.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 714.71 ms. Allocated memory is still 302.0 MB. Free memory was 241.6 MB in the beginning and 255.2 MB in the end (delta: -13.6 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 8856.69 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 254.1 MB in the beginning and 302.2 MB in the end (delta: -48.1 MB). Peak memory consumption was 86.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2793 VarBasedMoverChecksPositive, 122 VarBasedMoverChecksNegative, 68 SemBasedMoverChecksPositive, 54 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 846 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.6s, 109 PlacesBefore, 56 PlacesAfterwards, 112 TransitionsBefore, 57 TransitionsAfterwards, 3184 CoEnabledTransitionPairs, 7 FixpointIterations, 27 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 79 TotalNumberOfCompositions, 19776 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.0s, HoareTripleCheckerStatistics: 463 SDtfs, 423 SDslu, 525 SDs, 0 SdLazy, 141 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4772occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 5459 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 2348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...