/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-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 15:30:21,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 15:30:21,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 15:30:21,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-12 15:30:21,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 15:30:21,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 15:30:21,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 15:30:21,599 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 [2021-06-12 15:30:21,633 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 15:30:21,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 15:30:21,634 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 15:30:21,634 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 15:30:21,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 15:30:21,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 15:30:21,636 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 15:30:21,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 15:30:21,637 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 15:30:21,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 15:30:21,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 15:30:21,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 15:30:21,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 15:30:21,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 15:30:21,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 15:30:21,639 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 15:30:21,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 15:30:21,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 15:30:21,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 15:30:21,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 15:30:21,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 15:30:21,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 15:30:21,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 15:30:21,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 15:30:21,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 15:30:21,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 15:30:21,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 15:30:21,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 15:30:21,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 15:30:21,641 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 15:30:21,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 15:30:21,642 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 15:30:21,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 15:30:21,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 15:30:21,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 15:30:21,957 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 15:30:21,958 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 15:30:21,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2021-06-12 15:30:22,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33a76758c/e6f502526634480083a8d199391dce20/FLAGced6618d5 [2021-06-12 15:30:22,487 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 15:30:22,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2021-06-12 15:30:22,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33a76758c/e6f502526634480083a8d199391dce20/FLAGced6618d5 [2021-06-12 15:30:22,512 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33a76758c/e6f502526634480083a8d199391dce20 [2021-06-12 15:30:22,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 15:30:22,516 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 15:30:22,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 15:30:22,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 15:30:22,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 15:30:22,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 03:30:22" (1/1) ... [2021-06-12 15:30:22,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7110792f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:30:22, skipping insertion in model container [2021-06-12 15:30:22,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 03:30:22" (1/1) ... [2021-06-12 15:30:22,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 15:30:22,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 15:30:22,717 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-12 15:30:22,862 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] [2021-06-12 15:30:22,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 15:30:22,884 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 15:30:22,907 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-12 15:30:22,929 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] [2021-06-12 15:30:22,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 15:30:23,051 INFO L208 MainTranslator]: Completed translation [2021-06-12 15:30:23,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:30:23 WrapperNode [2021-06-12 15:30:23,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 15:30:23,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 15:30:23,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 15:30:23,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 15:30:23,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:30:23" (1/1) ... [2021-06-12 15:30:23,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:30:23" (1/1) ... [2021-06-12 15:30:23,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 15:30:23,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 15:30:23,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 15:30:23,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 15:30:23,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:30:23" (1/1) ... [2021-06-12 15:30:23,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:30:23" (1/1) ... [2021-06-12 15:30:23,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:30:23" (1/1) ... [2021-06-12 15:30:23,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:30:23" (1/1) ... [2021-06-12 15:30:23,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:30:23" (1/1) ... [2021-06-12 15:30:23,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:30:23" (1/1) ... [2021-06-12 15:30:23,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:30:23" (1/1) ... [2021-06-12 15:30:23,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 15:30:23,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 15:30:23,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 15:30:23,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 15:30:23,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:30:23" (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 [2021-06-12 15:30:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-12 15:30:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 15:30:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-12 15:30:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-06-12 15:30:23,182 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-06-12 15:30:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 15:30:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 15:30:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 15:30:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-12 15:30:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 15:30:23,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 15:30:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-06-12 15:30:23,182 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-06-12 15:30:23,184 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 15:30:23,723 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 15:30:23,723 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-12 15:30:23,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 03:30:23 BoogieIcfgContainer [2021-06-12 15:30:23,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 15:30:23,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 15:30:23,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 15:30:23,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 15:30:23,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 03:30:22" (1/3) ... [2021-06-12 15:30:23,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c68afe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 03:30:23, skipping insertion in model container [2021-06-12 15:30:23,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:30:23" (2/3) ... [2021-06-12 15:30:23,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c68afe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 03:30:23, skipping insertion in model container [2021-06-12 15:30:23,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 03:30:23" (3/3) ... [2021-06-12 15:30:23,732 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2021-06-12 15:30:23,745 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 15:30:23,745 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 15:30:23,745 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-12 15:30:23,746 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 15:30:23,799 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,799 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,800 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,800 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,800 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,800 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,800 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,800 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,800 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,800 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,801 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,801 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,801 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,801 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,801 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,801 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,801 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,801 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,802 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,802 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,802 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,802 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,802 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,802 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,802 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,802 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,803 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,803 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,803 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,803 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,803 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,803 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,803 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,804 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,804 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,804 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,804 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,804 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,804 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,804 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,805 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,805 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,805 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,805 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,805 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,805 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,805 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,805 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,806 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,806 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,806 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,806 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,806 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,806 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,806 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,807 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,807 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,807 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,807 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,807 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,807 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,807 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,807 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,807 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,808 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,808 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,808 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,808 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,808 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,808 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,808 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,809 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,809 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,809 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,809 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,809 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,809 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,809 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,809 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,810 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,810 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,810 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,810 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,810 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,811 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,811 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,811 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,811 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,811 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,811 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,811 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,811 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,811 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,812 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,812 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,812 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,812 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,812 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,828 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,829 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,830 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,831 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,831 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,831 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,831 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,831 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,831 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,832 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,832 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,833 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,834 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,834 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,834 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,834 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,834 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,835 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,835 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,836 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,836 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,836 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,836 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,837 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,837 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,837 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,838 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,838 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,838 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,838 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,838 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,838 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:30:23,872 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-06-12 15:30:23,890 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-12 15:30:23,904 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 15:30:23,904 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 15:30:23,904 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 15:30:23,904 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 15:30:23,904 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 15:30:23,905 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 15:30:23,905 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 15:30:23,905 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == reader======== [2021-06-12 15:30:23,915 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 119 places, 120 transitions, 308 flow [2021-06-12 15:30:29,118 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) [2021-06-12 15:30:29,209 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) [2021-06-12 15:30:29,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 15:30:29,800 INFO L301 ceAbstractionStarter]: Result for error location reader was SAFE (1/4) [2021-06-12 15:30:29,802 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-12 15:30:29,807 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 15:30:29,808 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 15:30:29,808 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 15:30:29,808 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 15:30:29,808 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 15:30:29,808 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 15:30:29,808 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 15:30:29,808 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == readerThread1of1ForFork0======== [2021-06-12 15:30:29,812 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 119 places, 120 transitions, 308 flow [2021-06-12 15:30:34,572 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) [2021-06-12 15:30:34,723 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) [2021-06-12 15:30:34,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-12 15:30:34,725 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:30:34,726 INFO L472 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] [2021-06-12 15:30:34,726 INFO L430 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:30:34,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:30:34,731 INFO L82 PathProgramCache]: Analyzing trace with hash -576272667, now seen corresponding path program 1 times [2021-06-12 15:30:34,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:30:34,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350019881] [2021-06-12 15:30:34,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:30:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:30:34,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:30:34,972 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:30:34,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350019881] [2021-06-12 15:30:34,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350019881] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:30:34,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:30:34,974 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 15:30:34,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898220665] [2021-06-12 15:30:34,977 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 15:30:34,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:30:34,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 15:30:34,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 15:30:35,068 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) [2021-06-12 15:30:36,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:30:36,872 INFO L93 Difference]: Finished difference Result 127826 states and 513006 transitions. [2021-06-12 15:30:36,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 15:30:36,874 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 [2021-06-12 15:30:36,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:30:37,310 INFO L225 Difference]: With dead ends: 127826 [2021-06-12 15:30:37,311 INFO L226 Difference]: Without dead ends: 53634 [2021-06-12 15:30:37,312 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 62.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-12 15:30:37,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53634 states. [2021-06-12 15:30:39,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53634 to 42117. [2021-06-12 15:30:39,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42117 states, 42115 states have (on average 4.0012584589813605) internal successors, (168513), 42116 states have internal predecessors, (168513), 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) [2021-06-12 15:30:39,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42117 states to 42117 states and 168513 transitions. [2021-06-12 15:30:39,955 INFO L78 Accepts]: Start accepts. Automaton has 42117 states and 168513 transitions. Word has length 36 [2021-06-12 15:30:39,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:30:39,956 INFO L482 AbstractCegarLoop]: Abstraction has 42117 states and 168513 transitions. [2021-06-12 15:30:39,956 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) [2021-06-12 15:30:39,956 INFO L276 IsEmpty]: Start isEmpty. Operand 42117 states and 168513 transitions. [2021-06-12 15:30:39,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-06-12 15:30:39,960 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:30:39,960 INFO L472 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] [2021-06-12 15:30:39,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 15:30:39,961 INFO L430 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:30:39,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:30:39,962 INFO L82 PathProgramCache]: Analyzing trace with hash -961474224, now seen corresponding path program 1 times [2021-06-12 15:30:39,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:30:39,962 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567789402] [2021-06-12 15:30:39,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:30:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:30:40,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:30:40,041 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:30:40,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567789402] [2021-06-12 15:30:40,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567789402] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:30:40,042 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:30:40,042 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-12 15:30:40,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102108363] [2021-06-12 15:30:40,043 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-12 15:30:40,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:30:40,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-12 15:30:40,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-12 15:30:40,044 INFO L87 Difference]: Start difference. First operand 42117 states and 168513 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) [2021-06-12 15:30:40,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:30:40,597 INFO L93 Difference]: Finished difference Result 39231 states and 150811 transitions. [2021-06-12 15:30:40,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-12 15:30:40,597 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 [2021-06-12 15:30:40,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:30:40,805 INFO L225 Difference]: With dead ends: 39231 [2021-06-12 15:30:40,806 INFO L226 Difference]: Without dead ends: 38349 [2021-06-12 15:30:40,806 INFO L728 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 [2021-06-12 15:30:41,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38349 states. [2021-06-12 15:30:42,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38349 to 38349. [2021-06-12 15:30:42,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38349 states, 38347 states have (on average 3.8422040837614415) internal successors, (147337), 38348 states have internal predecessors, (147337), 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) [2021-06-12 15:30:42,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38349 states to 38349 states and 147337 transitions. [2021-06-12 15:30:42,505 INFO L78 Accepts]: Start accepts. Automaton has 38349 states and 147337 transitions. Word has length 39 [2021-06-12 15:30:42,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:30:42,506 INFO L482 AbstractCegarLoop]: Abstraction has 38349 states and 147337 transitions. [2021-06-12 15:30:42,506 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) [2021-06-12 15:30:42,506 INFO L276 IsEmpty]: Start isEmpty. Operand 38349 states and 147337 transitions. [2021-06-12 15:30:42,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-06-12 15:30:42,508 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:30:42,508 INFO L472 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] [2021-06-12 15:30:42,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 15:30:42,508 INFO L430 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:30:42,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:30:42,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1809459636, now seen corresponding path program 2 times [2021-06-12 15:30:42,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:30:42,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602140493] [2021-06-12 15:30:42,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:30:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:30:42,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:30:42,633 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:30:42,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602140493] [2021-06-12 15:30:42,634 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602140493] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:30:42,634 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:30:42,634 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-12 15:30:42,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828801679] [2021-06-12 15:30:42,634 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-12 15:30:42,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:30:42,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-12 15:30:42,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-12 15:30:42,635 INFO L87 Difference]: Start difference. First operand 38349 states and 147337 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) [2021-06-12 15:30:42,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:30:42,776 INFO L93 Difference]: Finished difference Result 27110 states and 97371 transitions. [2021-06-12 15:30:42,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-12 15:30:42,777 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 [2021-06-12 15:30:42,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:30:42,887 INFO L225 Difference]: With dead ends: 27110 [2021-06-12 15:30:42,888 INFO L226 Difference]: Without dead ends: 24090 [2021-06-12 15:30:42,888 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-12 15:30:42,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24090 states. [2021-06-12 15:30:43,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24090 to 20943. [2021-06-12 15:30:43,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20943 states, 20938 states have (on average 3.6121883656509697) internal successors, (75632), 20942 states have internal predecessors, (75632), 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) [2021-06-12 15:30:43,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20943 states to 20943 states and 75632 transitions. [2021-06-12 15:30:43,589 INFO L78 Accepts]: Start accepts. Automaton has 20943 states and 75632 transitions. Word has length 39 [2021-06-12 15:30:43,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:30:43,591 INFO L482 AbstractCegarLoop]: Abstraction has 20943 states and 75632 transitions. [2021-06-12 15:30:43,591 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) [2021-06-12 15:30:43,591 INFO L276 IsEmpty]: Start isEmpty. Operand 20943 states and 75632 transitions. [2021-06-12 15:30:43,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-12 15:30:43,609 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:30:43,609 INFO L472 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] [2021-06-12 15:30:43,609 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 15:30:43,609 INFO L430 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:30:43,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:30:43,611 INFO L82 PathProgramCache]: Analyzing trace with hash 980522090, now seen corresponding path program 1 times [2021-06-12 15:30:43,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:30:43,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033199145] [2021-06-12 15:30:43,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:30:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:30:43,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:30:43,703 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:30:43,705 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033199145] [2021-06-12 15:30:43,705 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033199145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:30:43,705 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:30:43,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 15:30:43,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229638255] [2021-06-12 15:30:43,707 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 15:30:43,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:30:43,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 15:30:43,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 15:30:43,708 INFO L87 Difference]: Start difference. First operand 20943 states and 75632 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) [2021-06-12 15:30:44,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:30:44,069 INFO L93 Difference]: Finished difference Result 23659 states and 83402 transitions. [2021-06-12 15:30:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-12 15:30:44,069 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 [2021-06-12 15:30:44,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:30:44,145 INFO L225 Difference]: With dead ends: 23659 [2021-06-12 15:30:44,145 INFO L226 Difference]: Without dead ends: 17229 [2021-06-12 15:30:44,146 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.3ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-12 15:30:44,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17229 states. [2021-06-12 15:30:44,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17229 to 13563. [2021-06-12 15:30:44,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13563 states, 13562 states have (on average 3.5751364105589145) internal successors, (48486), 13562 states have internal predecessors, (48486), 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) [2021-06-12 15:30:44,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13563 states to 13563 states and 48486 transitions. [2021-06-12 15:30:44,525 INFO L78 Accepts]: Start accepts. Automaton has 13563 states and 48486 transitions. Word has length 53 [2021-06-12 15:30:44,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:30:44,526 INFO L482 AbstractCegarLoop]: Abstraction has 13563 states and 48486 transitions. [2021-06-12 15:30:44,527 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) [2021-06-12 15:30:44,527 INFO L276 IsEmpty]: Start isEmpty. Operand 13563 states and 48486 transitions. [2021-06-12 15:30:44,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-12 15:30:44,725 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:30:44,725 INFO L472 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] [2021-06-12 15:30:44,725 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 15:30:44,725 INFO L430 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:30:44,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:30:44,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1901331, now seen corresponding path program 1 times [2021-06-12 15:30:44,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:30:44,726 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908923577] [2021-06-12 15:30:44,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:30:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:30:44,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:30:44,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:30:44,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908923577] [2021-06-12 15:30:44,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908923577] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:30:44,856 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:30:44,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-12 15:30:44,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468250853] [2021-06-12 15:30:44,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-12 15:30:44,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:30:44,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-12 15:30:44,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-12 15:30:44,857 INFO L87 Difference]: Start difference. First operand 13563 states and 48486 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) [2021-06-12 15:30:44,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:30:44,945 INFO L93 Difference]: Finished difference Result 15627 states and 55450 transitions. [2021-06-12 15:30:44,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-12 15:30:44,946 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 [2021-06-12 15:30:44,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:30:44,968 INFO L225 Difference]: With dead ends: 15627 [2021-06-12 15:30:44,968 INFO L226 Difference]: Without dead ends: 11235 [2021-06-12 15:30:44,969 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-12 15:30:45,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11235 states. [2021-06-12 15:30:45,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11235 to 10323. [2021-06-12 15:30:45,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10323 states, 10322 states have (on average 3.5394303429567913) internal successors, (36534), 10322 states have internal predecessors, (36534), 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) [2021-06-12 15:30:45,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10323 states to 10323 states and 36534 transitions. [2021-06-12 15:30:45,183 INFO L78 Accepts]: Start accepts. Automaton has 10323 states and 36534 transitions. Word has length 60 [2021-06-12 15:30:45,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:30:45,183 INFO L482 AbstractCegarLoop]: Abstraction has 10323 states and 36534 transitions. [2021-06-12 15:30:45,184 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) [2021-06-12 15:30:45,184 INFO L276 IsEmpty]: Start isEmpty. Operand 10323 states and 36534 transitions. [2021-06-12 15:30:45,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-12 15:30:45,193 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:30:45,193 INFO L472 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] [2021-06-12 15:30:45,193 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 15:30:45,193 INFO L430 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:30:45,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:30:45,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1359958325, now seen corresponding path program 2 times [2021-06-12 15:30:45,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:30:45,194 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525410880] [2021-06-12 15:30:45,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:30:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:30:45,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:30:45,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:30:45,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525410880] [2021-06-12 15:30:45,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525410880] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:30:45,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:30:45,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-12 15:30:45,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62302637] [2021-06-12 15:30:45,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-12 15:30:45,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:30:45,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-12 15:30:45,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-12 15:30:45,267 INFO L87 Difference]: Start difference. First operand 10323 states and 36534 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) [2021-06-12 15:30:45,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:30:45,301 INFO L93 Difference]: Finished difference Result 4977 states and 16629 transitions. [2021-06-12 15:30:45,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-12 15:30:45,301 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 [2021-06-12 15:30:45,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:30:45,302 INFO L225 Difference]: With dead ends: 4977 [2021-06-12 15:30:45,302 INFO L226 Difference]: Without dead ends: 0 [2021-06-12 15:30:45,303 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-12 15:30:45,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-12 15:30:45,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-12 15:30:45,303 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) [2021-06-12 15:30:45,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-12 15:30:45,303 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2021-06-12 15:30:45,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:30:45,304 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-12 15:30:45,304 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) [2021-06-12 15:30:45,304 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-12 15:30:45,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 15:30:45,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 15:30:45,304 INFO L301 ceAbstractionStarter]: Result for error location readerThread1of1ForFork0 was SAFE (2/4) [2021-06-12 15:30:45,305 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-12 15:30:45,307 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 15:30:45,307 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 15:30:45,307 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 15:30:45,307 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 15:30:45,307 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 15:30:45,307 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 15:30:45,307 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 15:30:45,307 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == readerThread1of1ForFork3======== [2021-06-12 15:30:45,312 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 119 places, 120 transitions, 308 flow [2021-06-12 15:30:50,230 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) [2021-06-12 15:30:50,305 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) [2021-06-12 15:30:50,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-12 15:30:50,317 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:30:50,317 INFO L472 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] [2021-06-12 15:30:50,317 INFO L430 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:30:50,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:30:50,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1856661830, now seen corresponding path program 1 times [2021-06-12 15:30:50,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:30:50,319 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280472279] [2021-06-12 15:30:50,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:30:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:30:50,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:30:50,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:30:50,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280472279] [2021-06-12 15:30:50,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280472279] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:30:50,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:30:50,397 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 15:30:50,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509118223] [2021-06-12 15:30:50,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 15:30:50,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:30:50,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 15:30:50,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 15:30:50,490 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 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) [2021-06-12 15:30:51,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:30:51,690 INFO L93 Difference]: Finished difference Result 125594 states and 505332 transitions. [2021-06-12 15:30:51,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 15:30:51,691 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 [2021-06-12 15:30:51,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:30:51,913 INFO L225 Difference]: With dead ends: 125594 [2021-06-12 15:30:51,913 INFO L226 Difference]: Without dead ends: 53634 [2021-06-12 15:30:51,913 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 57.0ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-12 15:30:52,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53634 states. [2021-06-12 15:30:53,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53634 to 42117. [2021-06-12 15:30:53,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42117 states, 42115 states have (on average 4.000688590763386) internal successors, (168489), 42116 states have internal predecessors, (168489), 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) [2021-06-12 15:30:53,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42117 states to 42117 states and 168489 transitions. [2021-06-12 15:30:53,562 INFO L78 Accepts]: Start accepts. Automaton has 42117 states and 168489 transitions. Word has length 48 [2021-06-12 15:30:53,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:30:53,562 INFO L482 AbstractCegarLoop]: Abstraction has 42117 states and 168489 transitions. [2021-06-12 15:30:53,562 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) [2021-06-12 15:30:53,563 INFO L276 IsEmpty]: Start isEmpty. Operand 42117 states and 168489 transitions. [2021-06-12 15:30:53,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-12 15:30:53,584 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:30:53,584 INFO L472 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] [2021-06-12 15:30:53,584 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-12 15:30:53,584 INFO L430 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:30:53,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:30:53,585 INFO L82 PathProgramCache]: Analyzing trace with hash 333335531, now seen corresponding path program 1 times [2021-06-12 15:30:53,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:30:53,585 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781192346] [2021-06-12 15:30:53,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:30:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:30:53,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:30:53,617 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:30:53,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781192346] [2021-06-12 15:30:53,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781192346] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:30:53,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:30:53,618 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-12 15:30:53,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130526661] [2021-06-12 15:30:53,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-12 15:30:53,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:30:53,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-12 15:30:53,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-12 15:30:53,619 INFO L87 Difference]: Start difference. First operand 42117 states and 168489 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-06-12 15:30:53,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:30:53,858 INFO L93 Difference]: Finished difference Result 39219 states and 150733 transitions. [2021-06-12 15:30:53,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-12 15:30:53,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2021-06-12 15:30:53,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:30:53,957 INFO L225 Difference]: With dead ends: 39219 [2021-06-12 15:30:53,957 INFO L226 Difference]: Without dead ends: 38013 [2021-06-12 15:30:53,957 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-12 15:30:54,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38013 states. [2021-06-12 15:30:55,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38013 to 38013. [2021-06-12 15:30:55,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38013 states, 38011 states have (on average 3.8428612769987636) internal successors, (146071), 38012 states have internal predecessors, (146071), 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) [2021-06-12 15:30:55,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38013 states to 38013 states and 146071 transitions. [2021-06-12 15:30:55,297 INFO L78 Accepts]: Start accepts. Automaton has 38013 states and 146071 transitions. Word has length 51 [2021-06-12 15:30:55,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:30:55,297 INFO L482 AbstractCegarLoop]: Abstraction has 38013 states and 146071 transitions. [2021-06-12 15:30:55,297 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-06-12 15:30:55,297 INFO L276 IsEmpty]: Start isEmpty. Operand 38013 states and 146071 transitions. [2021-06-12 15:30:55,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-12 15:30:55,311 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:30:55,311 INFO L472 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] [2021-06-12 15:30:55,311 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-12 15:30:55,311 INFO L430 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:30:55,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:30:55,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1396420791, now seen corresponding path program 2 times [2021-06-12 15:30:55,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:30:55,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641953924] [2021-06-12 15:30:55,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:30:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:30:55,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:30:55,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:30:55,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641953924] [2021-06-12 15:30:55,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641953924] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:30:55,387 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:30:55,387 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-12 15:30:55,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122859076] [2021-06-12 15:30:55,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-12 15:30:55,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:30:55,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-12 15:30:55,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-12 15:30:55,389 INFO L87 Difference]: Start difference. First operand 38013 states and 146071 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2021-06-12 15:30:55,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:30:55,915 INFO L93 Difference]: Finished difference Result 48651 states and 182114 transitions. [2021-06-12 15:30:55,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-12 15:30:55,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 51 [2021-06-12 15:30:55,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:30:56,070 INFO L225 Difference]: With dead ends: 48651 [2021-06-12 15:30:56,070 INFO L226 Difference]: Without dead ends: 46245 [2021-06-12 15:30:56,070 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-12 15:30:56,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46245 states. [2021-06-12 15:30:56,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46245 to 35241. [2021-06-12 15:30:56,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35241 states, 35237 states have (on average 3.8162726679342738) internal successors, (134474), 35240 states have internal predecessors, (134474), 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) [2021-06-12 15:30:56,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35241 states to 35241 states and 134474 transitions. [2021-06-12 15:30:56,969 INFO L78 Accepts]: Start accepts. Automaton has 35241 states and 134474 transitions. Word has length 51 [2021-06-12 15:30:56,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:30:56,969 INFO L482 AbstractCegarLoop]: Abstraction has 35241 states and 134474 transitions. [2021-06-12 15:30:56,969 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2021-06-12 15:30:56,969 INFO L276 IsEmpty]: Start isEmpty. Operand 35241 states and 134474 transitions. [2021-06-12 15:30:56,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-12 15:30:56,984 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:30:56,985 INFO L472 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] [2021-06-12 15:30:56,985 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-12 15:30:56,985 INFO L430 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:30:56,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:30:56,985 INFO L82 PathProgramCache]: Analyzing trace with hash -219237236, now seen corresponding path program 1 times [2021-06-12 15:30:56,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:30:56,985 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811167901] [2021-06-12 15:30:56,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:30:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:30:57,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:30:57,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:30:57,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811167901] [2021-06-12 15:30:57,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811167901] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:30:57,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:30:57,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 15:30:57,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492656767] [2021-06-12 15:30:57,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 15:30:57,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:30:57,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 15:30:57,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 15:30:57,032 INFO L87 Difference]: Start difference. First operand 35241 states and 134474 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) [2021-06-12 15:30:57,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:30:57,718 INFO L93 Difference]: Finished difference Result 71416 states and 266999 transitions. [2021-06-12 15:30:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-12 15:30:57,719 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 [2021-06-12 15:30:57,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:30:57,888 INFO L225 Difference]: With dead ends: 71416 [2021-06-12 15:30:57,888 INFO L226 Difference]: Without dead ends: 61540 [2021-06-12 15:30:57,888 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.5ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-12 15:30:58,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61540 states. [2021-06-12 15:30:59,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61540 to 30530. [2021-06-12 15:30:59,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30530 states, 30526 states have (on average 3.791161632706545) internal successors, (115729), 30529 states have internal predecessors, (115729), 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) [2021-06-12 15:30:59,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30530 states to 30530 states and 115729 transitions. [2021-06-12 15:30:59,166 INFO L78 Accepts]: Start accepts. Automaton has 30530 states and 115729 transitions. Word has length 53 [2021-06-12 15:30:59,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:30:59,167 INFO L482 AbstractCegarLoop]: Abstraction has 30530 states and 115729 transitions. [2021-06-12 15:30:59,167 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) [2021-06-12 15:30:59,167 INFO L276 IsEmpty]: Start isEmpty. Operand 30530 states and 115729 transitions. [2021-06-12 15:30:59,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-12 15:30:59,181 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:30:59,181 INFO L472 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] [2021-06-12 15:30:59,181 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-12 15:30:59,181 INFO L430 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:30:59,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:30:59,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1983128374, now seen corresponding path program 1 times [2021-06-12 15:30:59,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:30:59,182 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364027645] [2021-06-12 15:30:59,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:30:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:30:59,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:30:59,222 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:30:59,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364027645] [2021-06-12 15:30:59,222 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364027645] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:30:59,222 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:30:59,223 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-12 15:30:59,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599072495] [2021-06-12 15:30:59,223 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-12 15:30:59,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:30:59,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-12 15:30:59,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-12 15:30:59,224 INFO L87 Difference]: Start difference. First operand 30530 states and 115729 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2021-06-12 15:30:59,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:30:59,327 INFO L93 Difference]: Finished difference Result 17573 states and 62004 transitions. [2021-06-12 15:30:59,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-12 15:30:59,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2021-06-12 15:30:59,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:30:59,354 INFO L225 Difference]: With dead ends: 17573 [2021-06-12 15:30:59,355 INFO L226 Difference]: Without dead ends: 12369 [2021-06-12 15:30:59,355 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-12 15:30:59,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12369 states. [2021-06-12 15:30:59,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12369 to 11457. [2021-06-12 15:30:59,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11457 states, 11456 states have (on average 3.4860335195530725) internal successors, (39936), 11456 states have internal predecessors, (39936), 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) [2021-06-12 15:30:59,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11457 states to 11457 states and 39936 transitions. [2021-06-12 15:30:59,793 INFO L78 Accepts]: Start accepts. Automaton has 11457 states and 39936 transitions. Word has length 54 [2021-06-12 15:30:59,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:30:59,794 INFO L482 AbstractCegarLoop]: Abstraction has 11457 states and 39936 transitions. [2021-06-12 15:30:59,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2021-06-12 15:30:59,794 INFO L276 IsEmpty]: Start isEmpty. Operand 11457 states and 39936 transitions. [2021-06-12 15:30:59,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-12 15:30:59,804 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:30:59,804 INFO L472 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] [2021-06-12 15:30:59,804 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-12 15:30:59,804 INFO L430 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:30:59,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:30:59,804 INFO L82 PathProgramCache]: Analyzing trace with hash -676092975, now seen corresponding path program 1 times [2021-06-12 15:30:59,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:30:59,805 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412713242] [2021-06-12 15:30:59,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:30:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:30:59,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:30:59,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:30:59,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412713242] [2021-06-12 15:30:59,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412713242] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:30:59,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:30:59,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-12 15:30:59,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715637896] [2021-06-12 15:30:59,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-12 15:30:59,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:30:59,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-12 15:30:59,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-12 15:30:59,852 INFO L87 Difference]: Start difference. First operand 11457 states and 39936 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) [2021-06-12 15:30:59,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:30:59,887 INFO L93 Difference]: Finished difference Result 6111 states and 20031 transitions. [2021-06-12 15:30:59,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-12 15:30:59,888 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 [2021-06-12 15:30:59,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:30:59,888 INFO L225 Difference]: With dead ends: 6111 [2021-06-12 15:30:59,888 INFO L226 Difference]: Without dead ends: 0 [2021-06-12 15:30:59,889 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-12 15:30:59,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-12 15:30:59,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-12 15:30:59,889 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) [2021-06-12 15:30:59,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-12 15:30:59,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2021-06-12 15:30:59,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:30:59,889 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-12 15:30:59,889 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) [2021-06-12 15:30:59,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-12 15:30:59,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 15:30:59,890 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-12 15:30:59,890 INFO L301 ceAbstractionStarter]: Result for error location readerThread1of1ForFork3 was SAFE (3/4) [2021-06-12 15:30:59,890 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-12 15:30:59,891 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 15:30:59,891 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 15:30:59,891 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 15:30:59,891 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 15:30:59,891 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 15:30:59,891 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 15:30:59,891 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 15:30:59,891 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 15:30:59,893 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 119 places, 120 transitions, 308 flow [2021-06-12 15:31:04,646 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) [2021-06-12 15:31:04,717 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) [2021-06-12 15:31:04,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 15:31:04,858 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (4/4) [2021-06-12 15:31:04,858 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-12 15:31:04,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.06 03:31:04 BasicIcfg [2021-06-12 15:31:04,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-12 15:31:04,861 INFO L168 Benchmark]: Toolchain (without parser) took 42346.04 ms. Allocated memory was 188.7 MB in the beginning and 7.4 GB in the end (delta: 7.2 GB). Free memory was 151.6 MB in the beginning and 4.3 GB in the end (delta: -4.1 GB). Peak memory consumption was 3.1 GB. Max. memory is 8.0 GB. [2021-06-12 15:31:04,862 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 188.7 MB. Free memory is still 169.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 15:31:04,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.28 ms. Allocated memory is still 188.7 MB. Free memory was 151.4 MB in the beginning and 153.5 MB in the end (delta: -2.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2021-06-12 15:31:04,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.16 ms. Allocated memory is still 188.7 MB. Free memory was 153.5 MB in the beginning and 151.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-12 15:31:04,863 INFO L168 Benchmark]: Boogie Preprocessor took 27.00 ms. Allocated memory is still 188.7 MB. Free memory was 151.4 MB in the beginning and 150.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-12 15:31:04,863 INFO L168 Benchmark]: RCFGBuilder took 608.12 ms. Allocated memory is still 188.7 MB. Free memory was 150.3 MB in the beginning and 117.3 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 GB. [2021-06-12 15:31:04,863 INFO L168 Benchmark]: TraceAbstraction took 41134.21 ms. Allocated memory was 188.7 MB in the beginning and 7.4 GB in the end (delta: 7.2 GB). Free memory was 116.8 MB in the beginning and 4.3 GB in the end (delta: -4.2 GB). Peak memory consumption was 3.0 GB. Max. memory is 8.0 GB. [2021-06-12 15:31:04,865 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 188.7 MB. Free memory is still 169.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 535.28 ms. Allocated memory is still 188.7 MB. Free memory was 151.4 MB in the beginning and 153.5 MB in the end (delta: -2.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 36.16 ms. Allocated memory is still 188.7 MB. Free memory was 153.5 MB in the beginning and 151.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.00 ms. Allocated memory is still 188.7 MB. Free memory was 151.4 MB in the beginning and 150.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 608.12 ms. Allocated memory is still 188.7 MB. Free memory was 150.3 MB in the beginning and 117.3 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 41134.21 ms. Allocated memory was 188.7 MB in the beginning and 7.4 GB in the end (delta: 7.2 GB). Free memory was 116.8 MB in the beginning and 4.3 GB in the end (delta: -4.2 GB). Peak memory consumption was 3.0 GB. Max. memory is 8.0 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 for errors in thread instance: reader with 1 thread instances CFG has 7 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5897.6ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 680.7ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5213.2ms, 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: readerThread1of1ForFork0 with 1 thread instances CFG has 7 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15496.8ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 362.7ms, AutomataDifference: 3936.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4784.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1097 SDtfs, 1016 SDslu, 2198 SDs, 0 SdLazy, 260 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 152.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 119.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=57581occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5625.7ms AutomataMinimizationTime, 6 MinimizatonAttempts, 19242 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.8ms SsaConstructionTime, 166.2ms SatisfiabilityAnalysisTime, 403.3ms InterpolantComputationTime, 287 NumberOfCodeBlocks, 287 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 281 ConstructedInterpolants, 0 QuantifiedInterpolants, 541 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: readerThread1of1ForFork3 with 1 thread instances CFG has 7 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14582.8ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 160.6ms, AutomataDifference: 3562.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4922.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1083 SDtfs, 1145 SDslu, 2139 SDs, 0 SdLazy, 283 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 162.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 136.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=57581occurred in iteration=0, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5602.6ms AutomataMinimizationTime, 6 MinimizatonAttempts, 54443 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.2ms SsaConstructionTime, 38.1ms SatisfiabilityAnalysisTime, 240.0ms InterpolantComputationTime, 317 NumberOfCodeBlocks, 317 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 641 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4967.3ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 211.7ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4755.0ms, 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...