/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1b.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-231806ee773fbd0554de777ff4074f5592c67ff4-231806e [2021-10-13 22:42:05,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 22:42:05,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 22:42:05,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-13 22:42:06,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 22:42:06,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 22:42:06,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 22:42:06,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-10-13 22:42:06,041 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 22:42:06,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 22:42:06,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 22:42:06,042 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 22:42:06,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 22:42:06,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 22:42:06,043 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 22:42:06,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 22:42:06,043 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 22:42:06,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 22:42:06,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 22:42:06,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 22:42:06,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 22:42:06,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 22:42:06,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 22:42:06,044 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 22:42:06,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 22:42:06,045 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 22:42:06,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 22:42:06,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 22:42:06,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 22:42:06,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-13 22:42:06,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 22:42:06,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:42:06,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 22:42:06,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 22:42:06,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 22:42:06,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 22:42:06,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 22:42:06,050 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-13 22:42:06,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 22:42:06,050 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 22:42:06,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 22:42:06,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 22:42:06,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 22:42:06,307 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 22:42:06,308 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 22:42:06,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1b.i [2021-10-13 22:42:06,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/595d35dc7/6d212c117641456fa2737c91940677cb/FLAG772f3368a [2021-10-13 22:42:06,800 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 22:42:06,801 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1b.i [2021-10-13 22:42:06,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/595d35dc7/6d212c117641456fa2737c91940677cb/FLAG772f3368a [2021-10-13 22:42:07,150 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/595d35dc7/6d212c117641456fa2737c91940677cb [2021-10-13 22:42:07,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 22:42:07,158 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 22:42:07,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 22:42:07,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 22:42:07,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 22:42:07,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:42:07" (1/1) ... [2021-10-13 22:42:07,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2322f66c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:42:07, skipping insertion in model container [2021-10-13 22:42:07,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:42:07" (1/1) ... [2021-10-13 22:42:07,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 22:42:07,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 22:42:07,477 WARN L228 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-1b.i[30416,30429] [2021-10-13 22:42:07,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:42:07,498 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 22:42:07,538 WARN L228 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-1b.i[30416,30429] [2021-10-13 22:42:07,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:42:07,574 INFO L208 MainTranslator]: Completed translation [2021-10-13 22:42:07,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:42:07 WrapperNode [2021-10-13 22:42:07,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 22:42:07,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 22:42:07,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 22:42:07,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 22:42:07,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:42:07" (1/1) ... [2021-10-13 22:42:07,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:42:07" (1/1) ... [2021-10-13 22:42:07,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 22:42:07,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 22:42:07,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 22:42:07,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 22:42:07,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:42:07" (1/1) ... [2021-10-13 22:42:07,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:42:07" (1/1) ... [2021-10-13 22:42:07,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:42:07" (1/1) ... [2021-10-13 22:42:07,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:42:07" (1/1) ... [2021-10-13 22:42:07,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:42:07" (1/1) ... [2021-10-13 22:42:07,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:42:07" (1/1) ... [2021-10-13 22:42:07,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:42:07" (1/1) ... [2021-10-13 22:42:07,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 22:42:07,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 22:42:07,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 22:42:07,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 22:42:07,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:42:07" (1/1) ... [2021-10-13 22:42:07,658 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:42:07,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 22:42:07,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 22:42:07,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 22:42:07,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 22:42:07,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 22:42:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-10-13 22:42:07,698 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-10-13 22:42:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 22:42:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 22:42:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 22:42:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 22:42:07,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 22:42:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-10-13 22:42:07,698 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-10-13 22:42:07,699 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 22:42:08,038 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 22:42:08,038 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 22:42:08,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:42:08 BoogieIcfgContainer [2021-10-13 22:42:08,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 22:42:08,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 22:42:08,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 22:42:08,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 22:42:08,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:42:07" (1/3) ... [2021-10-13 22:42:08,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1327ee37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:42:08, skipping insertion in model container [2021-10-13 22:42:08,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:42:07" (2/3) ... [2021-10-13 22:42:08,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1327ee37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:42:08, skipping insertion in model container [2021-10-13 22:42:08,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:42:08" (3/3) ... [2021-10-13 22:42:08,053 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-1b.i [2021-10-13 22:42:08,057 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 22:42:08,057 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 22:42:08,057 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 22:42:08,057 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 22:42:08,087 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,087 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,087 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,088 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,088 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,088 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,088 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,088 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,089 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,089 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,089 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,089 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,089 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,089 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,090 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,090 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,090 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,090 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,091 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,091 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,091 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,091 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,092 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,092 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,092 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,092 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,092 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,092 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,093 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,093 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,093 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,093 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,093 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,093 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,093 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,094 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,094 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,094 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,094 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,094 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,095 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,095 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,095 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,095 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,095 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,095 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,095 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,096 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,096 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,096 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,096 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,096 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,096 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,096 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,097 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,097 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,097 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,097 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,097 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,097 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,098 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,098 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,098 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,098 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,098 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,098 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,098 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,099 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,099 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,099 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,099 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,099 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,100 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,100 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,100 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,100 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,102 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,103 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,103 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,103 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,103 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,103 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,105 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,106 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,106 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,106 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,106 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,106 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,108 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,108 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,108 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,108 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,108 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,108 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,108 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,110 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,110 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,110 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,110 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,111 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,111 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,111 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:42:08,119 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-13 22:42:08,148 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 22:42:08,153 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 22:42:08,153 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-13 22:42:08,163 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 117 places, 106 transitions, 244 flow [2021-10-13 22:42:09,514 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 35871 states, 35868 states have (on average 4.233662317385971) internal successors, (151853), 35870 states have internal predecessors, (151853), 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) [2021-10-13 22:42:09,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 35871 states, 35868 states have (on average 4.233662317385971) internal successors, (151853), 35870 states have internal predecessors, (151853), 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) [2021-10-13 22:42:09,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-13 22:42:09,595 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:42:09,596 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:42:09,596 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2021-10-13 22:42:09,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:42:09,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1518516333, now seen corresponding path program 1 times [2021-10-13 22:42:09,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:42:09,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554947428] [2021-10-13 22:42:09,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:42:09,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:42:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:42:09,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:42:09,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:42:09,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554947428] [2021-10-13 22:42:09,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554947428] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:42:09,944 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:42:09,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:42:09,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483705799] [2021-10-13 22:42:09,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 22:42:09,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:42:09,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 22:42:09,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 22:42:10,042 INFO L87 Difference]: Start difference. First operand has 35871 states, 35868 states have (on average 4.233662317385971) internal successors, (151853), 35870 states have internal predecessors, (151853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:42:11,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:42:11,288 INFO L93 Difference]: Finished difference Result 62888 states and 249352 transitions. [2021-10-13 22:42:11,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 22:42:11,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-13 22:42:11,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:42:11,957 INFO L225 Difference]: With dead ends: 62888 [2021-10-13 22:42:11,957 INFO L226 Difference]: Without dead ends: 58526 [2021-10-13 22:42:11,959 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:42:12,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58526 states. [2021-10-13 22:42:14,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58526 to 35212. [2021-10-13 22:42:14,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35212 states, 35209 states have (on average 4.062796444090999) internal successors, (143047), 35211 states have internal predecessors, (143047), 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) [2021-10-13 22:42:14,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35212 states to 35212 states and 143047 transitions. [2021-10-13 22:42:14,692 INFO L78 Accepts]: Start accepts. Automaton has 35212 states and 143047 transitions. Word has length 34 [2021-10-13 22:42:14,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:42:14,692 INFO L470 AbstractCegarLoop]: Abstraction has 35212 states and 143047 transitions. [2021-10-13 22:42:14,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:42:14,693 INFO L276 IsEmpty]: Start isEmpty. Operand 35212 states and 143047 transitions. [2021-10-13 22:42:14,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-13 22:42:14,697 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:42:14,697 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:42:14,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 22:42:14,698 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2021-10-13 22:42:14,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:42:14,699 INFO L82 PathProgramCache]: Analyzing trace with hash -206491394, now seen corresponding path program 1 times [2021-10-13 22:42:14,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:42:14,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503214836] [2021-10-13 22:42:14,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:42:14,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:42:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:42:14,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:42:14,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:42:14,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503214836] [2021-10-13 22:42:14,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503214836] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:42:14,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:42:14,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:42:14,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121587685] [2021-10-13 22:42:14,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:42:14,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:42:14,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:42:14,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:42:14,798 INFO L87 Difference]: Start difference. First operand 35212 states and 143047 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:42:15,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:42:15,311 INFO L93 Difference]: Finished difference Result 32644 states and 127037 transitions. [2021-10-13 22:42:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:42:15,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-13 22:42:15,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:42:15,538 INFO L225 Difference]: With dead ends: 32644 [2021-10-13 22:42:15,539 INFO L226 Difference]: Without dead ends: 32320 [2021-10-13 22:42:15,539 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:42:15,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32320 states. [2021-10-13 22:42:16,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32320 to 32320. [2021-10-13 22:42:16,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32320 states, 32317 states have (on average 3.890491072809976) internal successors, (125729), 32319 states have internal predecessors, (125729), 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) [2021-10-13 22:42:16,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32320 states to 32320 states and 125729 transitions. [2021-10-13 22:42:16,803 INFO L78 Accepts]: Start accepts. Automaton has 32320 states and 125729 transitions. Word has length 37 [2021-10-13 22:42:16,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:42:16,804 INFO L470 AbstractCegarLoop]: Abstraction has 32320 states and 125729 transitions. [2021-10-13 22:42:16,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:42:16,804 INFO L276 IsEmpty]: Start isEmpty. Operand 32320 states and 125729 transitions. [2021-10-13 22:42:16,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-13 22:42:16,807 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:42:16,807 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:42:16,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 22:42:16,808 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2021-10-13 22:42:16,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:42:16,808 INFO L82 PathProgramCache]: Analyzing trace with hash 75027272, now seen corresponding path program 2 times [2021-10-13 22:42:16,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:42:16,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087091731] [2021-10-13 22:42:16,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:42:16,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:42:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:42:16,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:42:16,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:42:16,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087091731] [2021-10-13 22:42:16,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087091731] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:42:16,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:42:16,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:42:16,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593087498] [2021-10-13 22:42:16,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 22:42:16,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:42:16,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 22:42:16,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 22:42:16,872 INFO L87 Difference]: Start difference. First operand 32320 states and 125729 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:42:17,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:42:17,270 INFO L93 Difference]: Finished difference Result 27821 states and 101131 transitions. [2021-10-13 22:42:17,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 22:42:17,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-13 22:42:17,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:42:17,414 INFO L225 Difference]: With dead ends: 27821 [2021-10-13 22:42:17,414 INFO L226 Difference]: Without dead ends: 26561 [2021-10-13 22:42:17,415 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 22:42:17,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26561 states. [2021-10-13 22:42:18,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26561 to 22568. [2021-10-13 22:42:18,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22568 states, 22560 states have (on average 3.6644060283687945) internal successors, (82669), 22567 states have internal predecessors, (82669), 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) [2021-10-13 22:42:18,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22568 states to 22568 states and 82669 transitions. [2021-10-13 22:42:18,430 INFO L78 Accepts]: Start accepts. Automaton has 22568 states and 82669 transitions. Word has length 37 [2021-10-13 22:42:18,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:42:18,432 INFO L470 AbstractCegarLoop]: Abstraction has 22568 states and 82669 transitions. [2021-10-13 22:42:18,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:42:18,432 INFO L276 IsEmpty]: Start isEmpty. Operand 22568 states and 82669 transitions. [2021-10-13 22:42:18,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-13 22:42:18,440 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:42:18,441 INFO L512 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] [2021-10-13 22:42:18,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 22:42:18,441 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2021-10-13 22:42:18,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:42:18,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1550832216, now seen corresponding path program 1 times [2021-10-13 22:42:18,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:42:18,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939424997] [2021-10-13 22:42:18,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:42:18,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:42:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:42:18,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:42:18,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:42:18,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939424997] [2021-10-13 22:42:18,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939424997] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:42:18,531 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:42:18,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:42:18,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419105367] [2021-10-13 22:42:18,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 22:42:18,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:42:18,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 22:42:18,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 22:42:18,533 INFO L87 Difference]: Start difference. First operand 22568 states and 82669 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2021-10-13 22:42:18,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:42:18,706 INFO L93 Difference]: Finished difference Result 23049 states and 83297 transitions. [2021-10-13 22:42:18,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 22:42:18,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 46 [2021-10-13 22:42:18,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:42:18,756 INFO L225 Difference]: With dead ends: 23049 [2021-10-13 22:42:18,756 INFO L226 Difference]: Without dead ends: 15060 [2021-10-13 22:42:18,756 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:42:18,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15060 states. [2021-10-13 22:42:19,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15060 to 12930. [2021-10-13 22:42:19,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12930 states, 12928 states have (on average 3.5976949257425743) internal successors, (46511), 12929 states have internal predecessors, (46511), 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) [2021-10-13 22:42:19,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12930 states to 12930 states and 46511 transitions. [2021-10-13 22:42:19,273 INFO L78 Accepts]: Start accepts. Automaton has 12930 states and 46511 transitions. Word has length 46 [2021-10-13 22:42:19,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:42:19,274 INFO L470 AbstractCegarLoop]: Abstraction has 12930 states and 46511 transitions. [2021-10-13 22:42:19,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2021-10-13 22:42:19,275 INFO L276 IsEmpty]: Start isEmpty. Operand 12930 states and 46511 transitions. [2021-10-13 22:42:19,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-13 22:42:19,296 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:42:19,296 INFO L512 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] [2021-10-13 22:42:19,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 22:42:19,297 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2021-10-13 22:42:19,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:42:19,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1059481141, now seen corresponding path program 1 times [2021-10-13 22:42:19,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:42:19,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502801281] [2021-10-13 22:42:19,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:42:19,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:42:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:42:19,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:42:19,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:42:19,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502801281] [2021-10-13 22:42:19,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502801281] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:42:19,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:42:19,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 22:42:19,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079106055] [2021-10-13 22:42:19,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:42:19,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:42:19,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:42:19,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:42:19,404 INFO L87 Difference]: Start difference. First operand 12930 states and 46511 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2021-10-13 22:42:19,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:42:19,509 INFO L93 Difference]: Finished difference Result 15198 states and 54200 transitions. [2021-10-13 22:42:19,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 22:42:19,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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 56 [2021-10-13 22:42:19,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:42:19,540 INFO L225 Difference]: With dead ends: 15198 [2021-10-13 22:42:19,540 INFO L226 Difference]: Without dead ends: 12264 [2021-10-13 22:42:19,541 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:42:19,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12264 states. [2021-10-13 22:42:19,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12264 to 11274. [2021-10-13 22:42:19,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11274 states, 11272 states have (on average 3.59208658623137) internal successors, (40490), 11273 states have internal predecessors, (40490), 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) [2021-10-13 22:42:19,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11274 states to 11274 states and 40490 transitions. [2021-10-13 22:42:19,917 INFO L78 Accepts]: Start accepts. Automaton has 11274 states and 40490 transitions. Word has length 56 [2021-10-13 22:42:19,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:42:19,917 INFO L470 AbstractCegarLoop]: Abstraction has 11274 states and 40490 transitions. [2021-10-13 22:42:19,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2021-10-13 22:42:19,918 INFO L276 IsEmpty]: Start isEmpty. Operand 11274 states and 40490 transitions. [2021-10-13 22:42:19,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-13 22:42:19,932 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:42:19,932 INFO L512 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] [2021-10-13 22:42:19,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 22:42:19,932 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2021-10-13 22:42:19,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:42:19,933 INFO L82 PathProgramCache]: Analyzing trace with hash 378441115, now seen corresponding path program 2 times [2021-10-13 22:42:19,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:42:19,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497626131] [2021-10-13 22:42:19,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:42:19,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:42:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:42:19,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:42:19,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:42:19,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497626131] [2021-10-13 22:42:19,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497626131] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:42:19,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:42:19,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 22:42:19,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529119185] [2021-10-13 22:42:19,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:42:19,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:42:19,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:42:19,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:42:19,991 INFO L87 Difference]: Start difference. First operand 11274 states and 40490 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2021-10-13 22:42:20,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:42:20,037 INFO L93 Difference]: Finished difference Result 6051 states and 20830 transitions. [2021-10-13 22:42:20,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 22:42:20,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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 56 [2021-10-13 22:42:20,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:42:20,038 INFO L225 Difference]: With dead ends: 6051 [2021-10-13 22:42:20,038 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 22:42:20,038 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:42:20,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 22:42:20,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 22:42:20,038 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) [2021-10-13 22:42:20,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 22:42:20,039 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2021-10-13 22:42:20,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:42:20,039 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 22:42:20,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2021-10-13 22:42:20,039 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 22:42:20,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 22:42:20,042 INFO L764 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:42:20,042 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 22:42:20,042 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 22:42:20,042 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-13 22:42:20,042 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-13 22:42:20,043 INFO L764 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:42:20,043 INFO L764 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:42:20,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 22:42:20,048 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 22:42:20,048 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 22:42:20,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:42:20 BasicIcfg [2021-10-13 22:42:20,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 22:42:20,052 INFO L168 Benchmark]: Toolchain (without parser) took 12892.61 ms. Allocated memory was 182.5 MB in the beginning and 5.6 GB in the end (delta: 5.4 GB). Free memory was 133.8 MB in the beginning and 4.5 GB in the end (delta: -4.4 GB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. [2021-10-13 22:42:20,052 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 182.5 MB. Free memory is still 151.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 22:42:20,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.12 ms. Allocated memory is still 182.5 MB. Free memory was 133.7 MB in the beginning and 152.5 MB in the end (delta: -18.8 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. [2021-10-13 22:42:20,053 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.36 ms. Allocated memory is still 182.5 MB. Free memory was 152.5 MB in the beginning and 150.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:42:20,053 INFO L168 Benchmark]: Boogie Preprocessor took 22.79 ms. Allocated memory is still 182.5 MB. Free memory was 150.4 MB in the beginning and 148.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:42:20,053 INFO L168 Benchmark]: RCFGBuilder took 388.86 ms. Allocated memory is still 182.5 MB. Free memory was 148.8 MB in the beginning and 133.6 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-10-13 22:42:20,054 INFO L168 Benchmark]: TraceAbstraction took 12009.05 ms. Allocated memory was 182.5 MB in the beginning and 5.6 GB in the end (delta: 5.4 GB). Free memory was 133.1 MB in the beginning and 4.5 GB in the end (delta: -4.4 GB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. [2021-10-13 22:42:20,056 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 182.5 MB. Free memory is still 151.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 414.12 ms. Allocated memory is still 182.5 MB. Free memory was 133.7 MB in the beginning and 152.5 MB in the end (delta: -18.8 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 39.36 ms. Allocated memory is still 182.5 MB. Free memory was 152.5 MB in the beginning and 150.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.79 ms. Allocated memory is still 182.5 MB. Free memory was 150.4 MB in the beginning and 148.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 388.86 ms. Allocated memory is still 182.5 MB. Free memory was 148.8 MB in the beginning and 133.6 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 12009.05 ms. Allocated memory was 182.5 MB in the beginning and 5.6 GB in the end (delta: 5.4 GB). Free memory was 133.1 MB in the beginning and 4.5 GB in the end (delta: -4.4 GB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 711]: 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, 129 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 11898.9ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 131.9ms, AutomataDifference: 3705.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1361.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 841 SDtfs, 657 SDslu, 1022 SDs, 0 SdLazy, 158 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 127.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=35871occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5895.1ms AutomataMinimizationTime, 6 MinimizatonAttempts, 30427 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 52.9ms SsaConstructionTime, 146.9ms SatisfiabilityAnalysisTime, 357.3ms InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 515 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-13 22:42:20,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...