/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9b7772ad7705253c1305067fc38dc9bc7271fbe3-9b7772a [2021-04-15 00:07:08,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-15 00:07:08,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-15 00:07:08,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-15 00:07:08,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-15 00:07:08,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-15 00:07:08,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-15 00:07:08,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-15 00:07:08,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-15 00:07:08,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-15 00:07:08,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-15 00:07:08,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-15 00:07:08,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-15 00:07:08,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-15 00:07:08,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-15 00:07:08,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-15 00:07:08,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-15 00:07:08,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-15 00:07:08,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-15 00:07:08,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-15 00:07:08,579 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-NoLbe.epf [2021-04-15 00:07:08,597 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-15 00:07:08,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-15 00:07:08,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-04-15 00:07:08,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-04-15 00:07:08,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-15 00:07:08,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-15 00:07:08,600 INFO L138 SettingsManager]: * Use SBE=true [2021-04-15 00:07:08,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-15 00:07:08,600 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-15 00:07:08,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-15 00:07:08,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-15 00:07:08,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-15 00:07:08,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-15 00:07:08,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-15 00:07:08,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-15 00:07:08,602 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-15 00:07:08,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-15 00:07:08,602 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-15 00:07:08,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-15 00:07:08,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-15 00:07:08,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-15 00:07:08,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-15 00:07:08,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-15 00:07:08,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-15 00:07:08,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-15 00:07:08,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-15 00:07:08,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-15 00:07:08,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-15 00:07:08,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-15 00:07:08,604 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-04-15 00:07:08,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-15 00:07:08,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-15 00:07:08,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-15 00:07:08,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-15 00:07:08,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-15 00:07:08,900 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-15 00:07:08,903 INFO L275 PluginConnector]: CDTParser initialized [2021-04-15 00:07:08,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2021-04-15 00:07:08,967 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a370a6b2/580d90f164aa4aa19beb21f5cbc1b856/FLAG3442070f5 [2021-04-15 00:07:09,434 INFO L306 CDTParser]: Found 1 translation units. [2021-04-15 00:07:09,435 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2021-04-15 00:07:09,446 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a370a6b2/580d90f164aa4aa19beb21f5cbc1b856/FLAG3442070f5 [2021-04-15 00:07:09,935 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a370a6b2/580d90f164aa4aa19beb21f5cbc1b856 [2021-04-15 00:07:09,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-15 00:07:09,938 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-15 00:07:09,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-15 00:07:09,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-15 00:07:09,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-15 00:07:09,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:07:09" (1/1) ... [2021-04-15 00:07:09,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f93098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:07:09, skipping insertion in model container [2021-04-15 00:07:09,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:07:09" (1/1) ... [2021-04-15 00:07:09,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-15 00:07:09,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-15 00:07:10,116 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-04-15 00:07:10,293 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2021-04-15 00:07:10,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 00:07:10,313 INFO L203 MainTranslator]: Completed pre-run [2021-04-15 00:07:10,336 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-04-15 00:07:10,355 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2021-04-15 00:07:10,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 00:07:10,435 INFO L208 MainTranslator]: Completed translation [2021-04-15 00:07:10,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:07:10 WrapperNode [2021-04-15 00:07:10,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-15 00:07:10,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-15 00:07:10,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-15 00:07:10,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-15 00:07:10,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:07:10" (1/1) ... [2021-04-15 00:07:10,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:07:10" (1/1) ... [2021-04-15 00:07:10,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-15 00:07:10,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-15 00:07:10,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-15 00:07:10,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-15 00:07:10,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:07:10" (1/1) ... [2021-04-15 00:07:10,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:07:10" (1/1) ... [2021-04-15 00:07:10,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:07:10" (1/1) ... [2021-04-15 00:07:10,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:07:10" (1/1) ... [2021-04-15 00:07:10,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:07:10" (1/1) ... [2021-04-15 00:07:10,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:07:10" (1/1) ... [2021-04-15 00:07:10,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:07:10" (1/1) ... [2021-04-15 00:07:10,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-15 00:07:10,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-15 00:07:10,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-15 00:07:10,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-15 00:07:10,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:07:10" (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 [2021-04-15 00:07:10,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-15 00:07:10,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-15 00:07:10,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-15 00:07:10,600 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-04-15 00:07:10,600 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-04-15 00:07:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-15 00:07:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-15 00:07:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-15 00:07:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-15 00:07:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-15 00:07:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-15 00:07:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-04-15 00:07:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-04-15 00:07:10,602 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-15 00:07:10,979 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-15 00:07:10,979 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-04-15 00:07:10,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:07:10 BoogieIcfgContainer [2021-04-15 00:07:10,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-15 00:07:10,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-15 00:07:10,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-15 00:07:10,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-15 00:07:10,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 12:07:09" (1/3) ... [2021-04-15 00:07:10,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557759ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:07:10, skipping insertion in model container [2021-04-15 00:07:10,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:07:10" (2/3) ... [2021-04-15 00:07:10,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557759ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:07:10, skipping insertion in model container [2021-04-15 00:07:10,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:07:10" (3/3) ... [2021-04-15 00:07:10,987 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2021-04-15 00:07:10,991 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-04-15 00:07:10,992 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-15 00:07:10,996 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-15 00:07:10,996 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-15 00:07:11,020 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,020 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,021 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,021 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,021 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,021 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,021 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,021 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,022 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,022 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,022 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,022 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,022 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,022 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,023 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,023 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,023 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,023 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,023 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,023 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,024 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,024 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,024 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,024 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,024 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,024 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,025 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,025 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,025 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,025 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,025 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,025 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,026 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,026 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,026 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,026 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,026 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,026 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,027 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,027 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,027 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,027 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,027 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,027 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,027 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,028 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,028 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,028 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,028 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,028 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,028 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,029 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,029 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,029 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,029 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,029 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,029 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,030 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,030 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,030 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,030 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,030 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,030 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,030 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,031 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,031 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,031 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,031 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,031 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,032 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,032 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,032 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,032 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,032 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,032 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,033 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,033 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,033 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,033 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,033 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,034 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,034 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,034 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,034 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,034 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,035 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,035 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,035 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,035 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,035 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,035 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,035 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,036 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,036 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,036 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,036 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,036 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,037 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,037 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,037 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,039 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,039 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,039 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,039 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,039 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,039 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,040 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,040 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,040 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,042 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,042 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,042 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,042 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,042 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,042 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,044 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,044 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,044 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,044 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,044 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,044 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,044 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,045 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,045 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,046 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,046 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,046 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,046 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,046 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,047 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 00:07:11,059 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-04-15 00:07:11,079 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-15 00:07:11,093 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-15 00:07:11,093 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-15 00:07:11,093 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-15 00:07:11,093 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-15 00:07:11,097 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-15 00:07:11,097 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-15 00:07:11,097 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-15 00:07:11,107 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-15 00:07:11,116 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 107 places, 108 transitions, 284 flow [2021-04-15 00:07:14,169 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 45602 states, 45598 states have (on average 4.12983025571297) internal successors, (188312), 45601 states have internal predecessors, (188312), 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) [2021-04-15 00:07:14,278 INFO L276 IsEmpty]: Start isEmpty. Operand has 45602 states, 45598 states have (on average 4.12983025571297) internal successors, (188312), 45601 states have internal predecessors, (188312), 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) [2021-04-15 00:07:14,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-04-15 00:07:14,422 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 00:07:14,423 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 00:07:14,423 INFO L428 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-15 00:07:14,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 00:07:14,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1965809367, now seen corresponding path program 1 times [2021-04-15 00:07:14,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 00:07:14,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579138881] [2021-04-15 00:07:14,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 00:07:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 00:07:14,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 00:07:14,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579138881] [2021-04-15 00:07:14,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 00:07:14,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 00:07:14,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102144083] [2021-04-15 00:07:14,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 00:07:14,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 00:07:14,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 00:07:14,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-15 00:07:14,845 INFO L87 Difference]: Start difference. First operand has 45602 states, 45598 states have (on average 4.12983025571297) internal successors, (188312), 45601 states have internal predecessors, (188312), 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 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-04-15 00:07:16,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 00:07:16,581 INFO L93 Difference]: Finished difference Result 103328 states and 406066 transitions. [2021-04-15 00:07:16,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 00:07:16,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2021-04-15 00:07:16,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 00:07:17,228 INFO L225 Difference]: With dead ends: 103328 [2021-04-15 00:07:17,228 INFO L226 Difference]: Without dead ends: 79018 [2021-04-15 00:07:17,229 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 65.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-04-15 00:07:17,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79018 states. [2021-04-15 00:07:19,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79018 to 48103. [2021-04-15 00:07:19,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48103 states, 48100 states have (on average 3.9972141372141374) internal successors, (192266), 48102 states have internal predecessors, (192266), 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) [2021-04-15 00:07:19,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48103 states to 48103 states and 192266 transitions. [2021-04-15 00:07:19,956 INFO L78 Accepts]: Start accepts. Automaton has 48103 states and 192266 transitions. Word has length 31 [2021-04-15 00:07:19,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 00:07:19,956 INFO L480 AbstractCegarLoop]: Abstraction has 48103 states and 192266 transitions. [2021-04-15 00:07:19,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-04-15 00:07:19,957 INFO L276 IsEmpty]: Start isEmpty. Operand 48103 states and 192266 transitions. [2021-04-15 00:07:19,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-04-15 00:07:19,964 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 00:07:19,964 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 00:07:19,965 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-15 00:07:19,965 INFO L428 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-15 00:07:19,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 00:07:19,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1649394302, now seen corresponding path program 1 times [2021-04-15 00:07:19,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 00:07:19,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729419503] [2021-04-15 00:07:19,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 00:07:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 00:07:20,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 00:07:20,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729419503] [2021-04-15 00:07:20,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 00:07:20,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-15 00:07:20,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975294022] [2021-04-15 00:07:20,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-15 00:07:20,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 00:07:20,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-15 00:07:20,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-15 00:07:20,060 INFO L87 Difference]: Start difference. First operand 48103 states and 192266 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-04-15 00:07:20,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 00:07:20,568 INFO L93 Difference]: Finished difference Result 45070 states and 173672 transitions. [2021-04-15 00:07:20,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 00:07:20,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2021-04-15 00:07:20,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 00:07:20,796 INFO L225 Difference]: With dead ends: 45070 [2021-04-15 00:07:20,796 INFO L226 Difference]: Without dead ends: 44710 [2021-04-15 00:07:20,797 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-15 00:07:21,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44710 states. [2021-04-15 00:07:21,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44710 to 44710. [2021-04-15 00:07:22,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44710 states, 44707 states have (on average 3.854206276422037) internal successors, (172310), 44709 states have internal predecessors, (172310), 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) [2021-04-15 00:07:22,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44710 states to 44710 states and 172310 transitions. [2021-04-15 00:07:22,173 INFO L78 Accepts]: Start accepts. Automaton has 44710 states and 172310 transitions. Word has length 34 [2021-04-15 00:07:22,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 00:07:22,174 INFO L480 AbstractCegarLoop]: Abstraction has 44710 states and 172310 transitions. [2021-04-15 00:07:22,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-04-15 00:07:22,174 INFO L276 IsEmpty]: Start isEmpty. Operand 44710 states and 172310 transitions. [2021-04-15 00:07:22,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-04-15 00:07:22,178 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 00:07:22,178 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 00:07:22,178 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-15 00:07:22,178 INFO L428 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-15 00:07:22,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 00:07:22,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1853638724, now seen corresponding path program 2 times [2021-04-15 00:07:22,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 00:07:22,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254092598] [2021-04-15 00:07:22,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 00:07:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 00:07:22,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 00:07:22,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254092598] [2021-04-15 00:07:22,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 00:07:22,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-15 00:07:22,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116493365] [2021-04-15 00:07:22,232 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-15 00:07:22,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 00:07:22,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-15 00:07:22,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-15 00:07:22,233 INFO L87 Difference]: Start difference. First operand 44710 states and 172310 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-04-15 00:07:22,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 00:07:22,742 INFO L93 Difference]: Finished difference Result 40480 states and 144348 transitions. [2021-04-15 00:07:22,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 00:07:22,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2021-04-15 00:07:22,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 00:07:22,923 INFO L225 Difference]: With dead ends: 40480 [2021-04-15 00:07:22,923 INFO L226 Difference]: Without dead ends: 38848 [2021-04-15 00:07:22,923 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-15 00:07:23,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38848 states. [2021-04-15 00:07:23,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38848 to 31471. [2021-04-15 00:07:23,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31471 states, 31463 states have (on average 3.6116390681117503) internal successors, (113633), 31470 states have internal predecessors, (113633), 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) [2021-04-15 00:07:23,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31471 states to 31471 states and 113633 transitions. [2021-04-15 00:07:23,892 INFO L78 Accepts]: Start accepts. Automaton has 31471 states and 113633 transitions. Word has length 34 [2021-04-15 00:07:23,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 00:07:23,893 INFO L480 AbstractCegarLoop]: Abstraction has 31471 states and 113633 transitions. [2021-04-15 00:07:23,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-04-15 00:07:23,893 INFO L276 IsEmpty]: Start isEmpty. Operand 31471 states and 113633 transitions. [2021-04-15 00:07:23,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-04-15 00:07:23,899 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 00:07:23,899 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 00:07:23,900 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-15 00:07:23,900 INFO L428 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-15 00:07:23,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 00:07:23,900 INFO L82 PathProgramCache]: Analyzing trace with hash 948191352, now seen corresponding path program 1 times [2021-04-15 00:07:23,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 00:07:23,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109871512] [2021-04-15 00:07:23,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 00:07:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 00:07:23,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 00:07:23,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109871512] [2021-04-15 00:07:23,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 00:07:23,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 00:07:23,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405523940] [2021-04-15 00:07:23,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 00:07:23,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 00:07:23,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 00:07:23,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-15 00:07:23,951 INFO L87 Difference]: Start difference. First operand 31471 states and 113633 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2021-04-15 00:07:24,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 00:07:24,215 INFO L93 Difference]: Finished difference Result 42607 states and 150533 transitions. [2021-04-15 00:07:24,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 00:07:24,216 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 37 [2021-04-15 00:07:24,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 00:07:24,298 INFO L225 Difference]: With dead ends: 42607 [2021-04-15 00:07:24,298 INFO L226 Difference]: Without dead ends: 33616 [2021-04-15 00:07:24,299 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 59.6ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-04-15 00:07:24,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33616 states. [2021-04-15 00:07:25,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33616 to 25708. [2021-04-15 00:07:25,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25708 states, 25706 states have (on average 3.5687777172644517) internal successors, (91739), 25707 states have internal predecessors, (91739), 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) [2021-04-15 00:07:25,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25708 states to 25708 states and 91739 transitions. [2021-04-15 00:07:25,103 INFO L78 Accepts]: Start accepts. Automaton has 25708 states and 91739 transitions. Word has length 37 [2021-04-15 00:07:25,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 00:07:25,104 INFO L480 AbstractCegarLoop]: Abstraction has 25708 states and 91739 transitions. [2021-04-15 00:07:25,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2021-04-15 00:07:25,104 INFO L276 IsEmpty]: Start isEmpty. Operand 25708 states and 91739 transitions. [2021-04-15 00:07:25,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-04-15 00:07:25,119 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 00:07:25,119 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 00:07:25,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-15 00:07:25,119 INFO L428 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-15 00:07:25,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 00:07:25,120 INFO L82 PathProgramCache]: Analyzing trace with hash 2001635344, now seen corresponding path program 1 times [2021-04-15 00:07:25,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 00:07:25,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161785666] [2021-04-15 00:07:25,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 00:07:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 00:07:25,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 00:07:25,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161785666] [2021-04-15 00:07:25,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 00:07:25,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 00:07:25,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638348396] [2021-04-15 00:07:25,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 00:07:25,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 00:07:25,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 00:07:25,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-15 00:07:25,193 INFO L87 Difference]: Start difference. First operand 25708 states and 91739 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-04-15 00:07:25,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 00:07:25,433 INFO L93 Difference]: Finished difference Result 32224 states and 112611 transitions. [2021-04-15 00:07:25,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-15 00:07:25,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2021-04-15 00:07:25,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 00:07:25,496 INFO L225 Difference]: With dead ends: 32224 [2021-04-15 00:07:25,496 INFO L226 Difference]: Without dead ends: 29704 [2021-04-15 00:07:25,497 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 55.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-04-15 00:07:25,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29704 states. [2021-04-15 00:07:26,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29704 to 22888. [2021-04-15 00:07:26,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22888 states, 22886 states have (on average 3.5554924407934982) internal successors, (81371), 22887 states have internal predecessors, (81371), 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) [2021-04-15 00:07:26,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22888 states to 22888 states and 81371 transitions. [2021-04-15 00:07:26,292 INFO L78 Accepts]: Start accepts. Automaton has 22888 states and 81371 transitions. Word has length 42 [2021-04-15 00:07:26,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 00:07:26,292 INFO L480 AbstractCegarLoop]: Abstraction has 22888 states and 81371 transitions. [2021-04-15 00:07:26,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-04-15 00:07:26,293 INFO L276 IsEmpty]: Start isEmpty. Operand 22888 states and 81371 transitions. [2021-04-15 00:07:26,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-04-15 00:07:26,305 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 00:07:26,305 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 00:07:26,305 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-15 00:07:26,305 INFO L428 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-15 00:07:26,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 00:07:26,306 INFO L82 PathProgramCache]: Analyzing trace with hash 670412142, now seen corresponding path program 1 times [2021-04-15 00:07:26,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 00:07:26,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091905897] [2021-04-15 00:07:26,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 00:07:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 00:07:26,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 00:07:26,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091905897] [2021-04-15 00:07:26,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 00:07:26,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 00:07:26,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070498139] [2021-04-15 00:07:26,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 00:07:26,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 00:07:26,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 00:07:26,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-15 00:07:26,345 INFO L87 Difference]: Start difference. First operand 22888 states and 81371 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-04-15 00:07:26,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 00:07:26,606 INFO L93 Difference]: Finished difference Result 27568 states and 96083 transitions. [2021-04-15 00:07:26,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-15 00:07:26,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2021-04-15 00:07:26,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 00:07:26,660 INFO L225 Difference]: With dead ends: 27568 [2021-04-15 00:07:26,661 INFO L226 Difference]: Without dead ends: 23146 [2021-04-15 00:07:26,661 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 49.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-04-15 00:07:26,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23146 states. [2021-04-15 00:07:27,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23146 to 18106. [2021-04-15 00:07:27,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18106 states, 18104 states have (on average 3.5333627927529827) internal successors, (63968), 18105 states have internal predecessors, (63968), 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) [2021-04-15 00:07:27,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18106 states to 18106 states and 63968 transitions. [2021-04-15 00:07:27,285 INFO L78 Accepts]: Start accepts. Automaton has 18106 states and 63968 transitions. Word has length 42 [2021-04-15 00:07:27,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 00:07:27,286 INFO L480 AbstractCegarLoop]: Abstraction has 18106 states and 63968 transitions. [2021-04-15 00:07:27,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-04-15 00:07:27,286 INFO L276 IsEmpty]: Start isEmpty. Operand 18106 states and 63968 transitions. [2021-04-15 00:07:27,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-04-15 00:07:27,303 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 00:07:27,303 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 00:07:27,303 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-15 00:07:27,303 INFO L428 AbstractCegarLoop]: === Iteration 7 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-15 00:07:27,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 00:07:27,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1896729791, now seen corresponding path program 1 times [2021-04-15 00:07:27,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 00:07:27,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193712072] [2021-04-15 00:07:27,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 00:07:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 00:07:27,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 00:07:27,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193712072] [2021-04-15 00:07:27,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 00:07:27,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 00:07:27,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444387608] [2021-04-15 00:07:27,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 00:07:27,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 00:07:27,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 00:07:27,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-15 00:07:27,406 INFO L87 Difference]: Start difference. First operand 18106 states and 63968 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-04-15 00:07:27,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 00:07:27,527 INFO L93 Difference]: Finished difference Result 21562 states and 75360 transitions. [2021-04-15 00:07:27,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-15 00:07:27,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2021-04-15 00:07:27,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 00:07:27,564 INFO L225 Difference]: With dead ends: 21562 [2021-04-15 00:07:27,564 INFO L226 Difference]: Without dead ends: 17722 [2021-04-15 00:07:27,564 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 44.7ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-04-15 00:07:27,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17722 states. [2021-04-15 00:07:27,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17722 to 16186. [2021-04-15 00:07:27,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16186 states, 16184 states have (on average 3.4799802273850715) internal successors, (56320), 16185 states have internal predecessors, (56320), 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) [2021-04-15 00:07:27,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16186 states to 16186 states and 56320 transitions. [2021-04-15 00:07:27,819 INFO L78 Accepts]: Start accepts. Automaton has 16186 states and 56320 transitions. Word has length 49 [2021-04-15 00:07:27,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 00:07:27,819 INFO L480 AbstractCegarLoop]: Abstraction has 16186 states and 56320 transitions. [2021-04-15 00:07:27,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-04-15 00:07:27,819 INFO L276 IsEmpty]: Start isEmpty. Operand 16186 states and 56320 transitions. [2021-04-15 00:07:27,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-04-15 00:07:27,831 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 00:07:27,831 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 00:07:27,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-15 00:07:27,832 INFO L428 AbstractCegarLoop]: === Iteration 8 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-15 00:07:27,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 00:07:27,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1501154535, now seen corresponding path program 1 times [2021-04-15 00:07:27,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 00:07:27,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628112974] [2021-04-15 00:07:27,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 00:07:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 00:07:27,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 00:07:27,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628112974] [2021-04-15 00:07:27,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 00:07:27,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-15 00:07:27,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471638877] [2021-04-15 00:07:27,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-15 00:07:27,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 00:07:27,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-15 00:07:27,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-15 00:07:27,926 INFO L87 Difference]: Start difference. First operand 16186 states and 56320 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2021-04-15 00:07:27,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 00:07:27,971 INFO L93 Difference]: Finished difference Result 7162 states and 23472 transitions. [2021-04-15 00:07:27,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-15 00:07:27,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 49 [2021-04-15 00:07:27,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 00:07:27,972 INFO L225 Difference]: With dead ends: 7162 [2021-04-15 00:07:27,972 INFO L226 Difference]: Without dead ends: 0 [2021-04-15 00:07:27,972 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-15 00:07:27,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-04-15 00:07:27,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-04-15 00:07:27,972 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) [2021-04-15 00:07:27,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-04-15 00:07:27,973 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2021-04-15 00:07:27,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 00:07:27,973 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-04-15 00:07:27,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2021-04-15 00:07:27,973 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-04-15 00:07:27,973 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-04-15 00:07:27,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-15 00:07:27,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 12:07:27 BasicIcfg [2021-04-15 00:07:27,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-15 00:07:27,978 INFO L168 Benchmark]: Toolchain (without parser) took 18039.63 ms. Allocated memory was 413.1 MB in the beginning and 12.1 GB in the end (delta: 11.7 GB). Free memory was 376.2 MB in the beginning and 10.3 GB in the end (delta: -9.9 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.0 GB. [2021-04-15 00:07:27,978 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 413.1 MB. Free memory was 394.4 MB in the beginning and 394.4 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-15 00:07:27,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 496.69 ms. Allocated memory is still 413.1 MB. Free memory was 376.0 MB in the beginning and 375.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. [2021-04-15 00:07:27,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.83 ms. Allocated memory is still 413.1 MB. Free memory was 375.0 MB in the beginning and 372.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-15 00:07:27,979 INFO L168 Benchmark]: Boogie Preprocessor took 17.74 ms. Allocated memory is still 413.1 MB. Free memory was 372.9 MB in the beginning and 371.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-15 00:07:27,979 INFO L168 Benchmark]: RCFGBuilder took 467.88 ms. Allocated memory is still 413.1 MB. Free memory was 371.9 MB in the beginning and 339.4 MB in the end (delta: 32.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-04-15 00:07:27,980 INFO L168 Benchmark]: TraceAbstraction took 16994.74 ms. Allocated memory was 413.1 MB in the beginning and 12.1 GB in the end (delta: 11.7 GB). Free memory was 338.3 MB in the beginning and 10.3 GB in the end (delta: -9.9 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.0 GB. [2021-04-15 00:07:27,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 413.1 MB. Free memory was 394.4 MB in the beginning and 394.4 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 496.69 ms. Allocated memory is still 413.1 MB. Free memory was 376.0 MB in the beginning and 375.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 56.83 ms. Allocated memory is still 413.1 MB. Free memory was 375.0 MB in the beginning and 372.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.74 ms. Allocated memory is still 413.1 MB. Free memory was 372.9 MB in the beginning and 371.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 467.88 ms. Allocated memory is still 413.1 MB. Free memory was 371.9 MB in the beginning and 339.4 MB in the end (delta: 32.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 16994.74 ms. Allocated memory was 413.1 MB in the beginning and 12.1 GB in the end (delta: 11.7 GB). Free memory was 338.3 MB in the beginning and 10.3 GB in the end (delta: -9.9 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 739]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16882.2ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 325.2ms, AutomataDifference: 5081.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3062.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1614 SDtfs, 1781 SDslu, 3471 SDs, 0 SdLazy, 521 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 318.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 291.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=48103occurred in iteration=1, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7537.8ms AutomataMinimizationTime, 8 MinimizatonAttempts, 59592 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.6ms SsaConstructionTime, 148.0ms SatisfiabilityAnalysisTime, 459.0ms InterpolantComputationTime, 318 NumberOfCodeBlocks, 318 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 534 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...