/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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 22:05:29,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 22:05:29,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 22:05:29,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 22:05:29,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 22:05:29,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 22:05:29,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 22:05:29,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 22:05:29,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 22:05:29,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 22:05:29,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 22:05:29,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 22:05:29,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 22:05:29,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 22:05:29,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 22:05:29,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 22:05:29,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-21 22:05:29,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 22:05:29,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 22:05:29,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 22:05:29,714 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-Separate.epf [2021-05-21 22:05:29,748 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 22:05:29,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 22:05:29,749 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 22:05:29,749 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 22:05:29,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 22:05:29,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 22:05:29,752 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 22:05:29,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 22:05:29,752 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 22:05:29,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 22:05:29,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 22:05:29,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 22:05:29,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 22:05:29,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 22:05:29,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 22:05:29,754 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 22:05:29,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 22:05:29,754 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 22:05:29,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 22:05:29,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 22:05:29,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 22:05:29,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 22:05:29,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 22:05:29,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 22:05:29,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 22:05:29,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 22:05:29,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 22:05:29,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 22:05:29,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 22:05:29,756 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 22:05:29,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 22:05:29,756 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 22:05:29,756 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 22:05:30,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 22:05:30,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 22:05:30,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 22:05:30,091 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 22:05:30,092 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 22:05:30,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2021-05-21 22:05:30,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84fa4d472/7ae84ebe3bdb4712837646f4a1d8edb1/FLAGe03c2d723 [2021-05-21 22:05:30,642 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 22:05:30,642 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2021-05-21 22:05:30,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84fa4d472/7ae84ebe3bdb4712837646f4a1d8edb1/FLAGe03c2d723 [2021-05-21 22:05:30,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84fa4d472/7ae84ebe3bdb4712837646f4a1d8edb1 [2021-05-21 22:05:30,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 22:05:30,682 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 22:05:30,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 22:05:30,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 22:05:30,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 22:05:30,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 10:05:30" (1/1) ... [2021-05-21 22:05:30,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd057ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:30, skipping insertion in model container [2021-05-21 22:05:30,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 10:05:30" (1/1) ... [2021-05-21 22:05:30,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 22:05:30,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 22:05:30,932 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-05-21 22:05:31,063 WARN L224 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] [2021-05-21 22:05:31,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 22:05:31,078 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 22:05:31,100 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-05-21 22:05:31,125 WARN L224 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] [2021-05-21 22:05:31,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 22:05:31,189 INFO L208 MainTranslator]: Completed translation [2021-05-21 22:05:31,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:31 WrapperNode [2021-05-21 22:05:31,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 22:05:31,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 22:05:31,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 22:05:31,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 22:05:31,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:31" (1/1) ... [2021-05-21 22:05:31,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:31" (1/1) ... [2021-05-21 22:05:31,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 22:05:31,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 22:05:31,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 22:05:31,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 22:05:31,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:31" (1/1) ... [2021-05-21 22:05:31,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:31" (1/1) ... [2021-05-21 22:05:31,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:31" (1/1) ... [2021-05-21 22:05:31,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:31" (1/1) ... [2021-05-21 22:05:31,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:31" (1/1) ... [2021-05-21 22:05:31,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:31" (1/1) ... [2021-05-21 22:05:31,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:31" (1/1) ... [2021-05-21 22:05:31,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 22:05:31,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 22:05:31,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 22:05:31,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 22:05:31,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:31" (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 [2021-05-21 22:05:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-21 22:05:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 22:05:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 22:05:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-05-21 22:05:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-05-21 22:05:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 22:05:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 22:05:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 22:05:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 22:05:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 22:05:31,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 22:05:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-05-21 22:05:31,300 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-05-21 22:05:31,302 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 22:05:31,851 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 22:05:31,852 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-05-21 22:05:31,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 10:05:31 BoogieIcfgContainer [2021-05-21 22:05:31,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 22:05:31,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 22:05:31,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 22:05:31,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 22:05:31,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 10:05:30" (1/3) ... [2021-05-21 22:05:31,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2894a2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 10:05:31, skipping insertion in model container [2021-05-21 22:05:31,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:31" (2/3) ... [2021-05-21 22:05:31,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2894a2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 10:05:31, skipping insertion in model container [2021-05-21 22:05:31,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 10:05:31" (3/3) ... [2021-05-21 22:05:31,859 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2021-05-21 22:05:31,864 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 22:05:31,864 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 22:05:31,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 22:05:31,865 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 22:05:31,890 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,891 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,891 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,891 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,891 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,891 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,891 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,891 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,892 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,892 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,892 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,892 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,892 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,892 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,893 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,893 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,893 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,894 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,894 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,894 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,894 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,894 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,895 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,895 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,898 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,898 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,898 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,898 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,898 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,899 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,899 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,899 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,900 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,900 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,900 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,901 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,901 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,901 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,901 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,902 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,902 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,902 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,903 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,904 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,904 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,904 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,904 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,904 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,904 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,905 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,905 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,905 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,905 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,905 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,906 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,906 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,906 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,906 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,906 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,907 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,907 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,908 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,908 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,908 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,908 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,909 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,909 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,909 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,909 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,909 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,909 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,909 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,910 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,910 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,910 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,910 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,910 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,910 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,911 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,911 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,911 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,911 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,912 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,912 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,912 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,912 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,912 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,913 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,913 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,913 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,913 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,913 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,913 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,914 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,915 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,917 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,917 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,918 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,918 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,923 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,926 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,927 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,927 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,927 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,927 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,927 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,928 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,928 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,928 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,929 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,930 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,930 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,930 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,930 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,930 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,931 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,931 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,932 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,932 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,932 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,932 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,933 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,933 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,933 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,934 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,934 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,934 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,934 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,934 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,934 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:31,960 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-05-21 22:05:31,976 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-05-21 22:05:31,988 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 22:05:31,988 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 22:05:31,988 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 22:05:31,988 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 22:05:31,988 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 22:05:31,988 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 22:05:31,988 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 22:05:31,988 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 22:05:31,997 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 119 places, 120 transitions, 308 flow [2021-05-21 22:05:37,092 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 57581 states, 57577 states have (on average 4.205029786199351) internal successors, (242113), 57580 states have internal predecessors, (242113), 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) [2021-05-21 22:05:37,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 57581 states, 57577 states have (on average 4.205029786199351) internal successors, (242113), 57580 states have internal predecessors, (242113), 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) [2021-05-21 22:05:37,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-21 22:05:37,221 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:37,222 INFO L521 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] [2021-05-21 22:05:37,222 INFO L430 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:37,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:37,227 INFO L82 PathProgramCache]: Analyzing trace with hash -576272667, now seen corresponding path program 1 times [2021-05-21 22:05:37,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:37,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304700023] [2021-05-21 22:05:37,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:37,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:37,442 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:37,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304700023] [2021-05-21 22:05:37,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304700023] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:37,442 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:37,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 22:05:37,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978983579] [2021-05-21 22:05:37,446 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 22:05:37,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:37,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 22:05:37,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 22:05:37,544 INFO L87 Difference]: Start difference. First operand has 57581 states, 57577 states have (on average 4.205029786199351) internal successors, (242113), 57580 states have internal predecessors, (242113), 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 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2021-05-21 22:05:39,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:39,271 INFO L93 Difference]: Finished difference Result 127826 states and 513006 transitions. [2021-05-21 22:05:39,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 22:05:39,273 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 36 [2021-05-21 22:05:39,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:39,970 INFO L225 Difference]: With dead ends: 127826 [2021-05-21 22:05:39,970 INFO L226 Difference]: Without dead ends: 99460 [2021-05-21 22:05:39,972 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 56.6ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-05-21 22:05:40,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99460 states. [2021-05-21 22:05:43,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99460 to 61503. [2021-05-21 22:05:43,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61503 states, 61500 states have (on average 4.0689268292682925) internal successors, (250239), 61502 states have internal predecessors, (250239), 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) [2021-05-21 22:05:43,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61503 states to 61503 states and 250239 transitions. [2021-05-21 22:05:43,587 INFO L78 Accepts]: Start accepts. Automaton has 61503 states and 250239 transitions. Word has length 36 [2021-05-21 22:05:43,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:43,588 INFO L482 AbstractCegarLoop]: Abstraction has 61503 states and 250239 transitions. [2021-05-21 22:05:43,588 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2021-05-21 22:05:43,588 INFO L276 IsEmpty]: Start isEmpty. Operand 61503 states and 250239 transitions. [2021-05-21 22:05:43,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-21 22:05:43,593 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:43,593 INFO L521 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] [2021-05-21 22:05:43,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 22:05:43,593 INFO L430 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:43,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:43,594 INFO L82 PathProgramCache]: Analyzing trace with hash -961474224, now seen corresponding path program 1 times [2021-05-21 22:05:43,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:43,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102264124] [2021-05-21 22:05:43,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:43,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:43,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:43,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102264124] [2021-05-21 22:05:43,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102264124] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:43,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:43,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 22:05:43,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382047896] [2021-05-21 22:05:43,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 22:05:43,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:43,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 22:05:43,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:05:43,665 INFO L87 Difference]: Start difference. First operand 61503 states and 250239 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-05-21 22:05:44,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:44,424 INFO L93 Difference]: Finished difference Result 57411 states and 225043 transitions. [2021-05-21 22:05:44,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 22:05:44,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2021-05-21 22:05:44,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:44,618 INFO L225 Difference]: With dead ends: 57411 [2021-05-21 22:05:44,619 INFO L226 Difference]: Without dead ends: 56979 [2021-05-21 22:05:44,619 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:05:45,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56979 states. [2021-05-21 22:05:46,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56979 to 56979. [2021-05-21 22:05:46,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56979 states, 56976 states have (on average 3.9204050828418984) internal successors, (223369), 56978 states have internal predecessors, (223369), 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) [2021-05-21 22:05:46,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56979 states to 56979 states and 223369 transitions. [2021-05-21 22:05:46,756 INFO L78 Accepts]: Start accepts. Automaton has 56979 states and 223369 transitions. Word has length 39 [2021-05-21 22:05:46,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:46,756 INFO L482 AbstractCegarLoop]: Abstraction has 56979 states and 223369 transitions. [2021-05-21 22:05:46,756 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-05-21 22:05:46,756 INFO L276 IsEmpty]: Start isEmpty. Operand 56979 states and 223369 transitions. [2021-05-21 22:05:46,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-21 22:05:46,758 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:46,758 INFO L521 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] [2021-05-21 22:05:46,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 22:05:46,759 INFO L430 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:46,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:46,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1809459636, now seen corresponding path program 2 times [2021-05-21 22:05:46,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:46,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106483155] [2021-05-21 22:05:46,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:46,840 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:46,840 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106483155] [2021-05-21 22:05:46,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106483155] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:46,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:46,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 22:05:46,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216619178] [2021-05-21 22:05:46,841 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 22:05:46,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:46,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 22:05:46,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-21 22:05:46,842 INFO L87 Difference]: Start difference. First operand 56979 states and 223369 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2021-05-21 22:05:47,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:47,044 INFO L93 Difference]: Finished difference Result 49981 states and 181590 transitions. [2021-05-21 22:05:47,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-21 22:05:47,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 39 [2021-05-21 22:05:47,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:47,822 INFO L225 Difference]: With dead ends: 49981 [2021-05-21 22:05:47,822 INFO L226 Difference]: Without dead ends: 48025 [2021-05-21 22:05:47,822 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-21 22:05:47,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48025 states. [2021-05-21 22:05:48,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48025 to 39397. [2021-05-21 22:05:48,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39397 states, 39389 states have (on average 3.673792175480464) internal successors, (144707), 39396 states have internal predecessors, (144707), 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) [2021-05-21 22:05:48,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39397 states to 39397 states and 144707 transitions. [2021-05-21 22:05:48,970 INFO L78 Accepts]: Start accepts. Automaton has 39397 states and 144707 transitions. Word has length 39 [2021-05-21 22:05:48,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:48,970 INFO L482 AbstractCegarLoop]: Abstraction has 39397 states and 144707 transitions. [2021-05-21 22:05:48,971 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2021-05-21 22:05:48,971 INFO L276 IsEmpty]: Start isEmpty. Operand 39397 states and 144707 transitions. [2021-05-21 22:05:48,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-21 22:05:48,978 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:48,978 INFO L521 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] [2021-05-21 22:05:48,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 22:05:48,979 INFO L430 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:48,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:48,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1856661830, now seen corresponding path program 1 times [2021-05-21 22:05:48,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:48,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048502750] [2021-05-21 22:05:48,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:49,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:49,032 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:49,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048502750] [2021-05-21 22:05:49,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048502750] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:49,032 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:49,033 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 22:05:49,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529524974] [2021-05-21 22:05:49,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 22:05:49,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:49,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 22:05:49,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 22:05:49,034 INFO L87 Difference]: Start difference. First operand 39397 states and 144707 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-05-21 22:05:49,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:49,351 INFO L93 Difference]: Finished difference Result 52531 states and 189254 transitions. [2021-05-21 22:05:49,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 22:05:49,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2021-05-21 22:05:49,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:49,475 INFO L225 Difference]: With dead ends: 52531 [2021-05-21 22:05:49,476 INFO L226 Difference]: Without dead ends: 41496 [2021-05-21 22:05:49,476 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 53.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-05-21 22:05:49,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41496 states. [2021-05-21 22:05:50,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41496 to 32138. [2021-05-21 22:05:50,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32138 states, 32136 states have (on average 3.6329350261389095) internal successors, (116748), 32137 states have internal predecessors, (116748), 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) [2021-05-21 22:05:50,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32138 states to 32138 states and 116748 transitions. [2021-05-21 22:05:50,525 INFO L78 Accepts]: Start accepts. Automaton has 32138 states and 116748 transitions. Word has length 48 [2021-05-21 22:05:50,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:50,526 INFO L482 AbstractCegarLoop]: Abstraction has 32138 states and 116748 transitions. [2021-05-21 22:05:50,526 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-05-21 22:05:50,526 INFO L276 IsEmpty]: Start isEmpty. Operand 32138 states and 116748 transitions. [2021-05-21 22:05:50,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-21 22:05:50,543 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:50,543 INFO L521 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, 1, 1, 1, 1] [2021-05-21 22:05:50,544 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 22:05:50,544 INFO L430 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:50,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:50,544 INFO L82 PathProgramCache]: Analyzing trace with hash 980522090, now seen corresponding path program 1 times [2021-05-21 22:05:50,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:50,545 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736199142] [2021-05-21 22:05:50,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:50,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:50,637 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:50,637 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736199142] [2021-05-21 22:05:50,637 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736199142] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:50,637 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:50,637 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 22:05:50,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612386264] [2021-05-21 22:05:50,638 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 22:05:50,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:50,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 22:05:50,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 22:05:50,639 INFO L87 Difference]: Start difference. First operand 32138 states and 116748 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-05-21 22:05:50,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:50,941 INFO L93 Difference]: Finished difference Result 39805 states and 141873 transitions. [2021-05-21 22:05:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 22:05:50,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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 53 [2021-05-21 22:05:50,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:51,049 INFO L225 Difference]: With dead ends: 39805 [2021-05-21 22:05:51,050 INFO L226 Difference]: Without dead ends: 36776 [2021-05-21 22:05:51,051 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 52.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 22:05:51,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36776 states. [2021-05-21 22:05:51,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36776 to 28615. [2021-05-21 22:05:51,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28615 states, 28613 states have (on average 3.6183902421976026) internal successors, (103533), 28614 states have internal predecessors, (103533), 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) [2021-05-21 22:05:52,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28615 states to 28615 states and 103533 transitions. [2021-05-21 22:05:52,044 INFO L78 Accepts]: Start accepts. Automaton has 28615 states and 103533 transitions. Word has length 53 [2021-05-21 22:05:52,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:52,044 INFO L482 AbstractCegarLoop]: Abstraction has 28615 states and 103533 transitions. [2021-05-21 22:05:52,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-05-21 22:05:52,045 INFO L276 IsEmpty]: Start isEmpty. Operand 28615 states and 103533 transitions. [2021-05-21 22:05:52,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-21 22:05:52,057 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:52,057 INFO L521 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, 1, 1, 1, 1] [2021-05-21 22:05:52,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 22:05:52,057 INFO L430 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:52,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:52,058 INFO L82 PathProgramCache]: Analyzing trace with hash -219237236, now seen corresponding path program 1 times [2021-05-21 22:05:52,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:52,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528410856] [2021-05-21 22:05:52,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:52,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:52,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:52,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528410856] [2021-05-21 22:05:52,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528410856] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:52,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:52,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 22:05:52,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156528933] [2021-05-21 22:05:52,119 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 22:05:52,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:52,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 22:05:52,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 22:05:52,120 INFO L87 Difference]: Start difference. First operand 28615 states and 103533 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-05-21 22:05:52,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:52,383 INFO L93 Difference]: Finished difference Result 34167 states and 121407 transitions. [2021-05-21 22:05:52,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 22:05:52,384 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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 53 [2021-05-21 22:05:52,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:52,444 INFO L225 Difference]: With dead ends: 34167 [2021-05-21 22:05:52,444 INFO L226 Difference]: Without dead ends: 28741 [2021-05-21 22:05:52,445 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 48.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 22:05:52,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28741 states. [2021-05-21 22:05:53,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28741 to 22619. [2021-05-21 22:05:53,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22619 states, 22617 states have (on average 3.5937126939912454) internal successors, (81279), 22618 states have internal predecessors, (81279), 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) [2021-05-21 22:05:53,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22619 states to 22619 states and 81279 transitions. [2021-05-21 22:05:53,159 INFO L78 Accepts]: Start accepts. Automaton has 22619 states and 81279 transitions. Word has length 53 [2021-05-21 22:05:53,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:53,159 INFO L482 AbstractCegarLoop]: Abstraction has 22619 states and 81279 transitions. [2021-05-21 22:05:53,159 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-05-21 22:05:53,159 INFO L276 IsEmpty]: Start isEmpty. Operand 22619 states and 81279 transitions. [2021-05-21 22:05:53,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-05-21 22:05:53,179 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:53,179 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 22:05:53,179 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 22:05:53,179 INFO L430 AbstractCegarLoop]: === Iteration 7 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:53,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:53,180 INFO L82 PathProgramCache]: Analyzing trace with hash -676092975, now seen corresponding path program 1 times [2021-05-21 22:05:53,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:53,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140962060] [2021-05-21 22:05:53,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:53,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:53,242 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:53,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140962060] [2021-05-21 22:05:53,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140962060] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:53,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:53,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-21 22:05:53,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110089409] [2021-05-21 22:05:53,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-21 22:05:53,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:53,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-21 22:05:53,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 22:05:53,244 INFO L87 Difference]: Start difference. First operand 22619 states and 81279 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2021-05-21 22:05:53,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:53,362 INFO L93 Difference]: Finished difference Result 26747 states and 95207 transitions. [2021-05-21 22:05:53,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-21 22:05:53,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 60 [2021-05-21 22:05:53,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:53,406 INFO L225 Difference]: With dead ends: 26747 [2021-05-21 22:05:53,406 INFO L226 Difference]: Without dead ends: 22337 [2021-05-21 22:05:53,406 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 22:05:53,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22337 states. [2021-05-21 22:05:53,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22337 to 20513. [2021-05-21 22:05:53,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20513 states, 20511 states have (on average 3.599093169518795) internal successors, (73821), 20512 states have internal predecessors, (73821), 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) [2021-05-21 22:05:53,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20513 states to 20513 states and 73821 transitions. [2021-05-21 22:05:53,986 INFO L78 Accepts]: Start accepts. Automaton has 20513 states and 73821 transitions. Word has length 60 [2021-05-21 22:05:53,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:53,986 INFO L482 AbstractCegarLoop]: Abstraction has 20513 states and 73821 transitions. [2021-05-21 22:05:53,986 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2021-05-21 22:05:53,987 INFO L276 IsEmpty]: Start isEmpty. Operand 20513 states and 73821 transitions. [2021-05-21 22:05:54,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-05-21 22:05:54,003 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:54,004 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 22:05:54,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 22:05:54,004 INFO L430 AbstractCegarLoop]: === Iteration 8 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:54,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:54,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1808408195, now seen corresponding path program 2 times [2021-05-21 22:05:54,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:54,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614544197] [2021-05-21 22:05:54,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:54,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:54,072 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:54,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614544197] [2021-05-21 22:05:54,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614544197] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:54,073 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:54,073 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 22:05:54,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726084272] [2021-05-21 22:05:54,073 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 22:05:54,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:54,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 22:05:54,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-05-21 22:05:54,074 INFO L87 Difference]: Start difference. First operand 20513 states and 73821 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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) [2021-05-21 22:05:54,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:54,147 INFO L93 Difference]: Finished difference Result 9821 states and 34011 transitions. [2021-05-21 22:05:54,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-21 22:05:54,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 60 [2021-05-21 22:05:54,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:54,148 INFO L225 Difference]: With dead ends: 9821 [2021-05-21 22:05:54,148 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 22:05:54,148 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 25.7ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-05-21 22:05:54,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 22:05:54,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 22:05:54,149 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) [2021-05-21 22:05:54,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 22:05:54,149 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2021-05-21 22:05:54,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:54,149 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 22:05:54,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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) [2021-05-21 22:05:54,149 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 22:05:54,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 22:05:54,149 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 22:05:54,150 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-21 22:05:54,152 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-05-21 22:05:54,152 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 22:05:54,152 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 22:05:54,152 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 22:05:54,152 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 22:05:54,152 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 22:05:54,152 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 22:05:54,152 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 22:05:54,152 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 22:05:54,158 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 119 places, 120 transitions, 308 flow [2021-05-21 22:05:58,774 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 57581 states, 57577 states have (on average 4.205029786199351) internal successors, (242113), 57580 states have internal predecessors, (242113), 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) [2021-05-21 22:05:58,845 INFO L276 IsEmpty]: Start isEmpty. Operand has 57581 states, 57577 states have (on average 4.205029786199351) internal successors, (242113), 57580 states have internal predecessors, (242113), 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) [2021-05-21 22:05:59,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 22:05:59,029 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-21 22:05:59,029 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 22:05:59,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 10:05:59 BasicIcfg [2021-05-21 22:05:59,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 22:05:59,032 INFO L168 Benchmark]: Toolchain (without parser) took 28349.99 ms. Allocated memory was 346.0 MB in the beginning and 13.3 GB in the end (delta: 12.9 GB). Free memory was 308.3 MB in the beginning and 10.8 GB in the end (delta: -10.5 GB). Peak memory consumption was 2.4 GB. Max. memory is 16.0 GB. [2021-05-21 22:05:59,033 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 346.0 MB. Free memory was 326.4 MB in the beginning and 326.3 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 22:05:59,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.14 ms. Allocated memory is still 346.0 MB. Free memory was 308.1 MB in the beginning and 306.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-05-21 22:05:59,033 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.65 ms. Allocated memory is still 346.0 MB. Free memory was 306.6 MB in the beginning and 304.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 22:05:59,034 INFO L168 Benchmark]: Boogie Preprocessor took 18.64 ms. Allocated memory is still 346.0 MB. Free memory was 304.5 MB in the beginning and 303.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 22:05:59,034 INFO L168 Benchmark]: RCFGBuilder took 610.89 ms. Allocated memory is still 346.0 MB. Free memory was 303.5 MB in the beginning and 269.9 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. [2021-05-21 22:05:59,034 INFO L168 Benchmark]: TraceAbstraction took 27176.89 ms. Allocated memory was 346.0 MB in the beginning and 13.3 GB in the end (delta: 12.9 GB). Free memory was 268.9 MB in the beginning and 10.8 GB in the end (delta: -10.6 GB). Peak memory consumption was 2.4 GB. Max. memory is 16.0 GB. [2021-05-21 22:05:59,036 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 346.0 MB. Free memory was 326.4 MB in the beginning and 326.3 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 504.14 ms. Allocated memory is still 346.0 MB. Free memory was 308.1 MB in the beginning and 306.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.65 ms. Allocated memory is still 346.0 MB. Free memory was 306.6 MB in the beginning and 304.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.64 ms. Allocated memory is still 346.0 MB. Free memory was 304.5 MB in the beginning and 303.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 610.89 ms. Allocated memory is still 346.0 MB. Free memory was 303.5 MB in the beginning and 269.9 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 27176.89 ms. Allocated memory was 346.0 MB in the beginning and 13.3 GB in the end (delta: 12.9 GB). Free memory was 268.9 MB in the beginning and 10.8 GB in the end (delta: -10.6 GB). Peak memory consumption was 2.4 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22164.0ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 209.0ms, AutomataDifference: 5878.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5103.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1829 SDtfs, 1845 SDslu, 3815 SDs, 0 SdLazy, 514 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 282.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 252.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=61503occurred 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: 10226.3ms AutomataMinimizationTime, 8 MinimizatonAttempts, 72050 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.0ms SsaConstructionTime, 151.8ms SatisfiabilityAnalysisTime, 411.2ms InterpolantComputationTime, 388 NumberOfCodeBlocks, 388 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 380 ConstructedInterpolants, 0 QuantifiedInterpolants, 690 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 7 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4877.0ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 254.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4622.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=57581occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...