/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 21:40:17,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 21:40:17,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 21:40:17,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 21:40:17,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 21:40:17,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 21:40:17,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 21:40:17,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 21:40:17,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 21:40:17,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 21:40:17,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 21:40:17,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 21:40:17,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 21:40:17,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 21:40:17,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 21:40:17,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 21:40:17,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 21:40:17,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 21:40:17,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 21:40:17,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 21:40:17,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 21:40:17,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 21:40:17,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 21:40:17,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 21:40:17,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 21:40:17,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 21:40:17,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 21:40:17,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 21:40:17,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 21:40:17,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 21:40:17,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 21:40:17,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 21:40:17,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 21:40:17,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 21:40:17,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 21:40:17,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 21:40:17,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-11-11 21:40:17,947 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 21:40:17,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 21:40:17,952 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 21:40:17,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 21:40:17,953 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 21:40:17,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 21:40:17,953 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 21:40:17,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 21:40:17,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 21:40:17,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 21:40:17,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 21:40:17,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 21:40:17,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 21:40:17,956 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 21:40:17,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 21:40:17,956 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 21:40:17,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 21:40:17,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 21:40:17,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 21:40:17,957 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 21:40:17,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 21:40:17,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 21:40:17,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 21:40:17,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 21:40:17,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 21:40:17,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 21:40:17,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 21:40:17,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 21:40:17,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 21:40:18,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 21:40:18,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 21:40:18,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 21:40:18,408 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 21:40:18,408 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 21:40:18,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2020-11-11 21:40:18,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/618edcfc9/9bc6c1951c39444ab1d761e8acab83cf/FLAG656198932 [2020-11-11 21:40:19,154 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 21:40:19,155 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2020-11-11 21:40:19,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/618edcfc9/9bc6c1951c39444ab1d761e8acab83cf/FLAG656198932 [2020-11-11 21:40:19,457 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/618edcfc9/9bc6c1951c39444ab1d761e8acab83cf [2020-11-11 21:40:19,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 21:40:19,467 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 21:40:19,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 21:40:19,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 21:40:19,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 21:40:19,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:40:19" (1/1) ... [2020-11-11 21:40:19,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f6ad31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:19, skipping insertion in model container [2020-11-11 21:40:19,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:40:19" (1/1) ... [2020-11-11 21:40:19,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 21:40:19,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 21:40:19,736 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-11 21:40:19,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 21:40:19,939 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 21:40:19,971 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-11 21:40:20,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 21:40:20,127 INFO L208 MainTranslator]: Completed translation [2020-11-11 21:40:20,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:20 WrapperNode [2020-11-11 21:40:20,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 21:40:20,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 21:40:20,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 21:40:20,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 21:40:20,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:20" (1/1) ... [2020-11-11 21:40:20,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:20" (1/1) ... [2020-11-11 21:40:20,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 21:40:20,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 21:40:20,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 21:40:20,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 21:40:20,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:20" (1/1) ... [2020-11-11 21:40:20,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:20" (1/1) ... [2020-11-11 21:40:20,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:20" (1/1) ... [2020-11-11 21:40:20,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:20" (1/1) ... [2020-11-11 21:40:20,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:20" (1/1) ... [2020-11-11 21:40:20,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:20" (1/1) ... [2020-11-11 21:40:20,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:20" (1/1) ... [2020-11-11 21:40:20,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 21:40:20,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 21:40:20,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 21:40:20,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 21:40:20,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 21:40:20,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-11 21:40:20,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 21:40:20,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 21:40:20,311 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2020-11-11 21:40:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2020-11-11 21:40:20,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 21:40:20,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 21:40:20,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 21:40:20,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 21:40:20,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 21:40:20,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 21:40:20,312 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2020-11-11 21:40:20,312 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2020-11-11 21:40:20,314 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 21:40:20,865 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 21:40:20,865 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-11 21:40:20,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:40:20 BoogieIcfgContainer [2020-11-11 21:40:20,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 21:40:20,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 21:40:20,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 21:40:20,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 21:40:20,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:40:19" (1/3) ... [2020-11-11 21:40:20,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22287c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:40:20, skipping insertion in model container [2020-11-11 21:40:20,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:40:20" (2/3) ... [2020-11-11 21:40:20,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22287c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:40:20, skipping insertion in model container [2020-11-11 21:40:20,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:40:20" (3/3) ... [2020-11-11 21:40:20,878 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2020-11-11 21:40:20,893 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 21:40:20,894 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 21:40:20,898 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 21:40:20,899 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 21:40:20,941 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,941 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,942 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,942 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,942 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,942 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,942 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,943 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,943 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,943 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,943 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,943 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,944 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,944 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,944 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,944 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,945 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,945 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,945 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,945 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,945 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,946 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,946 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,946 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,946 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,946 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,946 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,947 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,947 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,947 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,947 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,947 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,948 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,948 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,948 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,948 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,949 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,949 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,949 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,949 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,950 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,950 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,950 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,950 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,950 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,950 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,951 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,951 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,951 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,951 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,952 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,952 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,952 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,952 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,953 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,953 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,953 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,953 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,953 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,954 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,954 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,954 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,954 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,955 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,955 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,955 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,955 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,955 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,956 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,956 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,956 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,956 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,956 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,957 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,957 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,957 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,958 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,958 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,958 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,958 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,958 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,958 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,959 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,959 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,959 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,959 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,960 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,960 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,960 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,960 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,961 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,961 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,961 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,961 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,961 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,962 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,962 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,962 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,962 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,962 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,963 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,963 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,963 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,963 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,964 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,964 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,964 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,964 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,966 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,967 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,967 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,967 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,967 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,968 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,972 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,972 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,973 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,973 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,973 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,973 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,973 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,974 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,974 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,980 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,981 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,981 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,981 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,981 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,981 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,984 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,984 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,984 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,985 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,985 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,985 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,985 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,985 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:20,985 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:40:21,011 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2020-11-11 21:40:21,024 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-11 21:40:21,048 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 21:40:21,048 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 21:40:21,048 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 21:40:21,049 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 21:40:21,049 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 21:40:21,049 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 21:40:21,049 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 21:40:21,049 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 21:40:21,063 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-11 21:40:21,065 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 102 transitions, 272 flow [2020-11-11 21:40:21,069 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 102 transitions, 272 flow [2020-11-11 21:40:21,071 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 102 transitions, 272 flow [2020-11-11 21:40:21,132 INFO L129 PetriNetUnfolder]: 17/136 cut-off events. [2020-11-11 21:40:21,132 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2020-11-11 21:40:21,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 136 events. 17/136 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 313 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 89. Up to 12 conditions per place. [2020-11-11 21:40:21,144 INFO L116 LiptonReduction]: Number of co-enabled transitions 2274 [2020-11-11 21:40:24,085 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-11 21:40:24,252 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-11 21:40:24,559 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-11 21:40:24,680 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-11-11 21:40:25,327 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-11-11 21:40:25,549 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-11 21:40:26,022 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-11-11 21:40:26,224 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-11 21:40:26,287 INFO L131 LiptonReduction]: Checked pairs total: 14898 [2020-11-11 21:40:26,287 INFO L133 LiptonReduction]: Total number of compositions: 45 [2020-11-11 21:40:26,294 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 57 transitions, 182 flow [2020-11-11 21:40:26,755 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5381 states, 5377 states have (on average 3.4863306676585455) internal successors, (18746), 5380 states have internal predecessors, (18746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:26,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 5381 states, 5377 states have (on average 3.4863306676585455) internal successors, (18746), 5380 states have internal predecessors, (18746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:26,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-11 21:40:26,787 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:40:26,788 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:40:26,789 INFO L429 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-11 21:40:26,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:40:26,796 INFO L82 PathProgramCache]: Analyzing trace with hash 300257142, now seen corresponding path program 1 times [2020-11-11 21:40:26,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:40:26,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802496232] [2020-11-11 21:40:26,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:40:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:40:27,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:40:27,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802496232] [2020-11-11 21:40:27,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:40:27,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 21:40:27,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772368860] [2020-11-11 21:40:27,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 21:40:27,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:40:27,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 21:40:27,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 21:40:27,087 INFO L87 Difference]: Start difference. First operand has 5381 states, 5377 states have (on average 3.4863306676585455) internal successors, (18746), 5380 states have internal predecessors, (18746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:27,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:40:27,354 INFO L93 Difference]: Finished difference Result 10812 states and 36249 transitions. [2020-11-11 21:40:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 21:40:27,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2020-11-11 21:40:27,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:40:27,455 INFO L225 Difference]: With dead ends: 10812 [2020-11-11 21:40:27,455 INFO L226 Difference]: Without dead ends: 7730 [2020-11-11 21:40:27,456 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-11 21:40:27,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7730 states. [2020-11-11 21:40:27,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7730 to 5052. [2020-11-11 21:40:27,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5052 states, 5049 states have (on average 3.398494751435928) internal successors, (17159), 5051 states have internal predecessors, (17159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:28,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5052 states to 5052 states and 17159 transitions. [2020-11-11 21:40:28,071 INFO L78 Accepts]: Start accepts. Automaton has 5052 states and 17159 transitions. Word has length 8 [2020-11-11 21:40:28,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:40:28,072 INFO L481 AbstractCegarLoop]: Abstraction has 5052 states and 17159 transitions. [2020-11-11 21:40:28,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:28,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5052 states and 17159 transitions. [2020-11-11 21:40:28,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-11 21:40:28,075 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:40:28,075 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:40:28,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 21:40:28,076 INFO L429 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-11 21:40:28,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:40:28,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1162736533, now seen corresponding path program 1 times [2020-11-11 21:40:28,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:40:28,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598774331] [2020-11-11 21:40:28,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:40:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:40:28,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:40:28,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598774331] [2020-11-11 21:40:28,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:40:28,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 21:40:28,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574831284] [2020-11-11 21:40:28,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 21:40:28,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:40:28,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 21:40:28,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 21:40:28,208 INFO L87 Difference]: Start difference. First operand 5052 states and 17159 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:28,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:40:28,280 INFO L93 Difference]: Finished difference Result 4317 states and 12958 transitions. [2020-11-11 21:40:28,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 21:40:28,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2020-11-11 21:40:28,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:40:28,319 INFO L225 Difference]: With dead ends: 4317 [2020-11-11 21:40:28,325 INFO L226 Difference]: Without dead ends: 4275 [2020-11-11 21:40:28,327 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 21:40:28,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2020-11-11 21:40:28,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 4275. [2020-11-11 21:40:28,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4275 states, 4272 states have (on average 3.00749063670412) internal successors, (12848), 4274 states have internal predecessors, (12848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:28,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 12848 transitions. [2020-11-11 21:40:28,566 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 12848 transitions. Word has length 10 [2020-11-11 21:40:28,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:40:28,566 INFO L481 AbstractCegarLoop]: Abstraction has 4275 states and 12848 transitions. [2020-11-11 21:40:28,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:28,567 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 12848 transitions. [2020-11-11 21:40:28,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-11 21:40:28,574 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:40:28,574 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:40:28,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 21:40:28,575 INFO L429 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-11 21:40:28,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:40:28,576 INFO L82 PathProgramCache]: Analyzing trace with hash 784361403, now seen corresponding path program 2 times [2020-11-11 21:40:28,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:40:28,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544236370] [2020-11-11 21:40:28,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:40:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:40:28,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:40:28,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544236370] [2020-11-11 21:40:28,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:40:28,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 21:40:28,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65458654] [2020-11-11 21:40:28,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 21:40:28,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:40:28,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 21:40:28,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 21:40:28,649 INFO L87 Difference]: Start difference. First operand 4275 states and 12848 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:28,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:40:28,714 INFO L93 Difference]: Finished difference Result 2906 states and 7004 transitions. [2020-11-11 21:40:28,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-11 21:40:28,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2020-11-11 21:40:28,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:40:28,735 INFO L225 Difference]: With dead ends: 2906 [2020-11-11 21:40:28,735 INFO L226 Difference]: Without dead ends: 2798 [2020-11-11 21:40:28,735 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 21:40:28,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2020-11-11 21:40:28,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2390. [2020-11-11 21:40:28,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2390 states, 2382 states have (on average 2.4806884970612932) internal successors, (5909), 2389 states have internal predecessors, (5909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:28,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2390 states to 2390 states and 5909 transitions. [2020-11-11 21:40:28,935 INFO L78 Accepts]: Start accepts. Automaton has 2390 states and 5909 transitions. Word has length 10 [2020-11-11 21:40:28,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:40:28,935 INFO L481 AbstractCegarLoop]: Abstraction has 2390 states and 5909 transitions. [2020-11-11 21:40:28,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:28,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2390 states and 5909 transitions. [2020-11-11 21:40:28,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-11 21:40:28,939 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:40:28,939 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:40:28,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 21:40:28,939 INFO L429 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-11 21:40:28,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:40:28,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1870259201, now seen corresponding path program 1 times [2020-11-11 21:40:28,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:40:28,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21028805] [2020-11-11 21:40:28,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:40:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:40:29,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:40:29,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21028805] [2020-11-11 21:40:29,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:40:29,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 21:40:29,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131649521] [2020-11-11 21:40:29,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 21:40:29,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:40:29,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 21:40:29,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 21:40:29,037 INFO L87 Difference]: Start difference. First operand 2390 states and 5909 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:29,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:40:29,110 INFO L93 Difference]: Finished difference Result 2639 states and 6454 transitions. [2020-11-11 21:40:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 21:40:29,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2020-11-11 21:40:29,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:40:29,119 INFO L225 Difference]: With dead ends: 2639 [2020-11-11 21:40:29,119 INFO L226 Difference]: Without dead ends: 1900 [2020-11-11 21:40:29,120 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-11 21:40:29,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2020-11-11 21:40:29,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1546. [2020-11-11 21:40:29,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1544 states have (on average 2.476683937823834) internal successors, (3824), 1545 states have internal predecessors, (3824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:29,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 3824 transitions. [2020-11-11 21:40:29,173 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 3824 transitions. Word has length 12 [2020-11-11 21:40:29,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:40:29,175 INFO L481 AbstractCegarLoop]: Abstraction has 1546 states and 3824 transitions. [2020-11-11 21:40:29,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:29,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 3824 transitions. [2020-11-11 21:40:29,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-11 21:40:29,177 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:40:29,178 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:40:29,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 21:40:29,178 INFO L429 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-11 21:40:29,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:40:29,179 INFO L82 PathProgramCache]: Analyzing trace with hash -192254784, now seen corresponding path program 1 times [2020-11-11 21:40:29,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:40:29,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786748459] [2020-11-11 21:40:29,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:40:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:40:29,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:40:29,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786748459] [2020-11-11 21:40:29,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:40:29,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-11 21:40:29,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223417255] [2020-11-11 21:40:29,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 21:40:29,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:40:29,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 21:40:29,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-11 21:40:29,316 INFO L87 Difference]: Start difference. First operand 1546 states and 3824 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:29,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:40:29,446 INFO L93 Difference]: Finished difference Result 1795 states and 4395 transitions. [2020-11-11 21:40:29,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 21:40:29,447 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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 20 [2020-11-11 21:40:29,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:40:29,463 INFO L225 Difference]: With dead ends: 1795 [2020-11-11 21:40:29,463 INFO L226 Difference]: Without dead ends: 1642 [2020-11-11 21:40:29,464 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-11 21:40:29,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2020-11-11 21:40:29,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1510. [2020-11-11 21:40:29,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1508 states have (on average 2.4462864721485413) internal successors, (3689), 1509 states have internal predecessors, (3689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 3689 transitions. [2020-11-11 21:40:29,510 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 3689 transitions. Word has length 20 [2020-11-11 21:40:29,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:40:29,511 INFO L481 AbstractCegarLoop]: Abstraction has 1510 states and 3689 transitions. [2020-11-11 21:40:29,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:40:29,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 3689 transitions. [2020-11-11 21:40:29,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-11 21:40:29,514 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:40:29,516 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:40:29,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 21:40:29,517 INFO L429 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-11 21:40:29,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:40:29,517 INFO L82 PathProgramCache]: Analyzing trace with hash -980803168, now seen corresponding path program 2 times [2020-11-11 21:40:29,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:40:29,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003304168] [2020-11-11 21:40:29,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:40:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-11 21:40:29,554 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-11 21:40:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-11 21:40:29,584 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-11 21:40:29,627 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-11 21:40:29,628 INFO L595 BasicCegarLoop]: Counterexample might be feasible [2020-11-11 21:40:29,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-11 21:40:29,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 09:40:29 BasicIcfg [2020-11-11 21:40:29,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 21:40:29,713 INFO L168 Benchmark]: Toolchain (without parser) took 10250.21 ms. Allocated memory was 302.0 MB in the beginning and 469.8 MB in the end (delta: 167.8 MB). Free memory was 277.6 MB in the beginning and 337.8 MB in the end (delta: -60.2 MB). Peak memory consumption was 109.8 MB. Max. memory is 16.0 GB. [2020-11-11 21:40:29,713 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 21:40:29,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.84 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 246.8 MB in the end (delta: 30.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-11 21:40:29,718 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.33 ms. Allocated memory is still 302.0 MB. Free memory was 246.8 MB in the beginning and 244.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 21:40:29,719 INFO L168 Benchmark]: Boogie Preprocessor took 30.68 ms. Allocated memory is still 302.0 MB. Free memory was 244.6 MB in the beginning and 243.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 21:40:29,720 INFO L168 Benchmark]: RCFGBuilder took 654.51 ms. Allocated memory is still 302.0 MB. Free memory was 243.4 MB in the beginning and 253.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. [2020-11-11 21:40:29,723 INFO L168 Benchmark]: TraceAbstraction took 8841.99 ms. Allocated memory was 302.0 MB in the beginning and 469.8 MB in the end (delta: 167.8 MB). Free memory was 252.3 MB in the beginning and 337.8 MB in the end (delta: -85.5 MB). Peak memory consumption was 82.3 MB. Max. memory is 16.0 GB. [2020-11-11 21:40:29,731 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 657.84 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 246.8 MB in the end (delta: 30.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.33 ms. Allocated memory is still 302.0 MB. Free memory was 246.8 MB in the beginning and 244.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.68 ms. Allocated memory is still 302.0 MB. Free memory was 244.6 MB in the beginning and 243.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 654.51 ms. Allocated memory is still 302.0 MB. Free memory was 243.4 MB in the beginning and 253.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 8841.99 ms. Allocated memory was 302.0 MB in the beginning and 469.8 MB in the end (delta: 167.8 MB). Free memory was 252.3 MB in the beginning and 337.8 MB in the end (delta: -85.5 MB). Peak memory consumption was 82.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1779 VarBasedMoverChecksPositive, 56 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 49 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 803 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.2s, 103 PlacesBefore, 58 PlacesAfterwards, 102 TransitionsBefore, 57 TransitionsAfterwards, 2274 CoEnabledTransitionPairs, 5 FixpointIterations, 27 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 45 TotalNumberOfCompositions, 14898 MoverChecksTotal - CounterExampleResult [Line: 16]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L704] 0 int w=0, r=0, x, y; [L740] 0 pthread_t t1, t2, t3, t4; [L741] FCALL, FORK 0 pthread_create(&t1, 0, writer, 0) VAL [r=0, w=0, x=0, y=0] [L742] FCALL, FORK 0 pthread_create(&t2, 0, reader, 0) VAL [r=0, w=0, x=0, y=0] [L743] FCALL, FORK 0 pthread_create(&t3, 0, writer, 0) VAL [r=0, w=0, x=0, y=0] [L744] FCALL, FORK 0 pthread_create(&t4, 0, reader, 0) VAL [r=0, w=0, x=0, y=0] [L720] 4 int l; [L721] CALL 4 __VERIFIER_atomic_take_read_lock() [L710] CALL 4 assume_abort_if_not(w==0) [L3] COND FALSE 4 !(!cond) [L710] RET 4 assume_abort_if_not(w==0) [L711] 4 r = r+1 [L721] RET 4 __VERIFIER_atomic_take_read_lock() [L723] 4 l = x VAL [r=1, w=0, x=0, y=0] [L726] 4 y = l VAL [r=1, w=0, x=0, y=0] [L729] COND FALSE 4 !(!(y == x)) VAL [r=1, w=0, x=0, y=0] [L732] 4 l = r-1 VAL [r=1, w=0, x=0, y=0] [L720] 2 int l; [L721] CALL 2 __VERIFIER_atomic_take_read_lock() [L710] CALL 2 assume_abort_if_not(w==0) [L3] COND FALSE 2 !(!cond) [L710] RET 2 assume_abort_if_not(w==0) [L711] 2 r = r+1 [L721] RET 2 __VERIFIER_atomic_take_read_lock() [L723] 2 l = x VAL [r=2, w=0, x=0, y=0] [L726] 2 y = l VAL [r=2, w=0, x=0, y=0] [L735] 4 r = l [L737] 4 return 0; [L714] CALL 3 __VERIFIER_atomic_take_write_lock() [L706] CALL 3 assume_abort_if_not(w==0 && r==0) [L3] COND FALSE 3 !(!cond) [L706] RET 3 assume_abort_if_not(w==0 && r==0) [L707] 3 w = 1 [L714] RET 3 __VERIFIER_atomic_take_write_lock() [L715] 3 x = 3 VAL [r=0, w=1, x=3, y=0] [L729] COND TRUE 2 !(y == x) [L16] COND FALSE 2 !(0) [L16] 2 __assert_fail ("0", "read_write_lock-2.c", 7, __extension__ __PRETTY_FUNCTION__) VAL [r=0, w=1, x=3, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.7s, HoareTripleCheckerStatistics: 429 SDtfs, 370 SDslu, 543 SDs, 0 SdLazy, 159 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5381occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 3572 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 1573 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...