/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 18:23:52,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 18:23:52,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 18:23:52,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 18:23:52,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 18:23:52,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 18:23:52,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 18:23:52,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 18:23:52,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 18:23:52,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 18:23:52,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 18:23:52,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 18:23:52,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 18:23:52,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 18:23:52,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 18:23:52,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 18:23:52,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 18:23:52,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 18:23:52,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 18:23:52,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 18:23:52,113 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 [2021-06-05 18:23:52,153 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 18:23:52,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 18:23:52,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 18:23:52,154 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 18:23:52,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 18:23:52,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 18:23:52,156 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 18:23:52,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 18:23:52,157 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 18:23:52,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 18:23:52,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 18:23:52,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 18:23:52,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 18:23:52,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 18:23:52,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 18:23:52,158 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 18:23:52,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 18:23:52,158 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 18:23:52,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 18:23:52,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 18:23:52,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 18:23:52,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 18:23:52,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 18:23:52,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 18:23:52,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 18:23:52,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 18:23:52,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 18:23:52,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 18:23:52,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 18:23:52,160 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 18:23:52,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 18:23:52,160 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 18:23:52,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 18:23:52,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 18:23:52,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 18:23:52,474 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 18:23:52,475 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 18:23:52,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-06-05 18:23:52,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac2f4bd5/ba4b819f5cd74c559e923389a8839871/FLAG542f651a6 [2021-06-05 18:23:53,090 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 18:23:53,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-06-05 18:23:53,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac2f4bd5/ba4b819f5cd74c559e923389a8839871/FLAG542f651a6 [2021-06-05 18:23:53,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac2f4bd5/ba4b819f5cd74c559e923389a8839871 [2021-06-05 18:23:53,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 18:23:53,410 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 18:23:53,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 18:23:53,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 18:23:53,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 18:23:53,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 06:23:53" (1/1) ... [2021-06-05 18:23:53,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd85c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:23:53, skipping insertion in model container [2021-06-05 18:23:53,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 06:23:53" (1/1) ... [2021-06-05 18:23:53,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 18:23:53,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 18:23:53,661 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 18:23:53,730 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-2.i[31244,31257] [2021-06-05 18:23:53,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 18:23:53,743 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 18:23:53,756 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 18:23:53,775 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-2.i[31244,31257] [2021-06-05 18:23:53,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 18:23:53,831 INFO L208 MainTranslator]: Completed translation [2021-06-05 18:23:53,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:23:53 WrapperNode [2021-06-05 18:23:53,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 18:23:53,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 18:23:53,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 18:23:53,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 18:23:53,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:23:53" (1/1) ... [2021-06-05 18:23:53,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:23:53" (1/1) ... [2021-06-05 18:23:53,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 18:23:53,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 18:23:53,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 18:23:53,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 18:23:53,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:23:53" (1/1) ... [2021-06-05 18:23:53,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:23:53" (1/1) ... [2021-06-05 18:23:53,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:23:53" (1/1) ... [2021-06-05 18:23:53,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:23:53" (1/1) ... [2021-06-05 18:23:53,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:23:53" (1/1) ... [2021-06-05 18:23:53,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:23:53" (1/1) ... [2021-06-05 18:23:53,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:23:53" (1/1) ... [2021-06-05 18:23:53,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 18:23:53,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 18:23:53,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 18:23:53,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 18:23:53,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:23:53" (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 [2021-06-05 18:23:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 18:23:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 18:23:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 18:23:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-06-05 18:23:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-06-05 18:23:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 18:23:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 18:23:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 18:23:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 18:23:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 18:23:53,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 18:23:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-06-05 18:23:53,960 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-06-05 18:23:53,962 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 18:23:54,453 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 18:23:54,453 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-05 18:23:54,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 06:23:54 BoogieIcfgContainer [2021-06-05 18:23:54,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 18:23:54,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 18:23:54,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 18:23:54,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 18:23:54,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 06:23:53" (1/3) ... [2021-06-05 18:23:54,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6726deec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 06:23:54, skipping insertion in model container [2021-06-05 18:23:54,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:23:53" (2/3) ... [2021-06-05 18:23:54,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6726deec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 06:23:54, skipping insertion in model container [2021-06-05 18:23:54,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 06:23:54" (3/3) ... [2021-06-05 18:23:54,462 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2021-06-05 18:23:54,471 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 18:23:54,471 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 18:23:54,471 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 18:23:54,472 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 18:23:54,514 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,514 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,514 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,514 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,514 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,515 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,515 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,515 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,515 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,515 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,515 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,515 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,516 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,516 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,516 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,516 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,516 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,516 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,517 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,517 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,518 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,518 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,518 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,518 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,518 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,518 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,519 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,519 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,519 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,519 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,520 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,521 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,521 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,521 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,522 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,522 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,522 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,522 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,523 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,523 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,523 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,523 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,524 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,524 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,524 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,525 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,525 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,525 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,525 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,525 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,525 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,526 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,526 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,526 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,526 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,526 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,526 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,527 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,527 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,527 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,527 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,528 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,528 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,528 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,528 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,528 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,529 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,529 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,530 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,530 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,530 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,530 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,530 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,530 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,531 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,531 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,531 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,532 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,532 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,532 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,532 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,532 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,533 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,533 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,533 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,533 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,534 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,534 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,535 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,535 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,535 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,535 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,536 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,537 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,537 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,538 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,540 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,540 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,541 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,541 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,546 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,547 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,547 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,547 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,547 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,547 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,547 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,548 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,552 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,553 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,553 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,553 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,553 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,553 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,555 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,556 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,556 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,556 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,556 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,556 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,558 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,558 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,559 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,559 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,559 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,559 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,559 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,559 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,559 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,561 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,561 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,562 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,562 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,562 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,562 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,562 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,562 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,562 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:23:54,603 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-06-05 18:23:54,625 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 18:23:54,651 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 18:23:54,651 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 18:23:54,651 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 18:23:54,651 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 18:23:54,651 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 18:23:54,651 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 18:23:54,651 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 18:23:54,652 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == reader======== [2021-06-05 18:23:54,662 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 121 places, 122 transitions, 312 flow [2021-06-05 18:24:01,716 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-05 18:24:01,817 INFO L276 IsEmpty]: Start isEmpty. Operand has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-05 18:24:02,345 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 18:24:02,346 INFO L301 ceAbstractionStarter]: Result for error location reader was SAFE (1/4) [2021-06-05 18:24:02,348 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 18:24:02,355 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 18:24:02,355 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 18:24:02,355 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 18:24:02,356 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 18:24:02,356 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 18:24:02,356 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 18:24:02,356 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 18:24:02,356 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == readerThread1of1ForFork2======== [2021-06-05 18:24:02,363 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 121 places, 122 transitions, 312 flow [2021-06-05 18:24:08,860 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-05 18:24:08,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-05 18:24:08,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 18:24:08,982 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:24:08,983 INFO L554 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] [2021-06-05 18:24:08,984 INFO L430 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:24:08,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:24:08,990 INFO L82 PathProgramCache]: Analyzing trace with hash 266014307, now seen corresponding path program 1 times [2021-06-05 18:24:08,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:24:08,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065628541] [2021-06-05 18:24:08,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:24:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:24:09,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:24:09,268 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:24:09,268 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065628541] [2021-06-05 18:24:09,269 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065628541] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:24:09,269 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:24:09,270 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 18:24:09,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242406256] [2021-06-05 18:24:09,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 18:24:09,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:24:09,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 18:24:09,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 18:24:09,360 INFO L87 Difference]: Start difference. First operand has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-05 18:24:11,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:24:11,275 INFO L93 Difference]: Finished difference Result 136999 states and 557226 transitions. [2021-06-05 18:24:11,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 18:24:11,277 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 [2021-06-05 18:24:11,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:24:11,714 INFO L225 Difference]: With dead ends: 136999 [2021-06-05 18:24:11,715 INFO L226 Difference]: Without dead ends: 57509 [2021-06-05 18:24:11,716 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 86.5ms TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-06-05 18:24:12,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57509 states. [2021-06-05 18:24:13,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57509 to 44817. [2021-06-05 18:24:13,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44817 states, 44815 states have (on average 4.00780988508312) internal successors, (179610), 44816 states have internal predecessors, (179610), 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) [2021-06-05 18:24:14,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44817 states to 44817 states and 179610 transitions. [2021-06-05 18:24:14,612 INFO L78 Accepts]: Start accepts. Automaton has 44817 states and 179610 transitions. Word has length 48 [2021-06-05 18:24:14,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:24:14,613 INFO L482 AbstractCegarLoop]: Abstraction has 44817 states and 179610 transitions. [2021-06-05 18:24:14,613 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) [2021-06-05 18:24:14,613 INFO L276 IsEmpty]: Start isEmpty. Operand 44817 states and 179610 transitions. [2021-06-05 18:24:14,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 18:24:14,675 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:24:14,675 INFO L554 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] [2021-06-05 18:24:14,675 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 18:24:14,676 INFO L430 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:24:14,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:24:14,676 INFO L82 PathProgramCache]: Analyzing trace with hash -356152759, now seen corresponding path program 1 times [2021-06-05 18:24:14,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:24:14,677 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909192174] [2021-06-05 18:24:14,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:24:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:24:14,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:24:14,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:24:14,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909192174] [2021-06-05 18:24:14,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909192174] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:24:14,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:24:14,760 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 18:24:14,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560645172] [2021-06-05 18:24:14,761 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 18:24:14,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:24:14,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 18:24:14,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 18:24:14,762 INFO L87 Difference]: Start difference. First operand 44817 states and 179610 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) [2021-06-05 18:24:15,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:24:15,069 INFO L93 Difference]: Finished difference Result 41725 states and 160732 transitions. [2021-06-05 18:24:15,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 18:24:15,070 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 [2021-06-05 18:24:15,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:24:15,240 INFO L225 Difference]: With dead ends: 41725 [2021-06-05 18:24:15,240 INFO L226 Difference]: Without dead ends: 40393 [2021-06-05 18:24:15,241 INFO L810 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 [2021-06-05 18:24:15,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40393 states. [2021-06-05 18:24:16,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40393 to 40393. [2021-06-05 18:24:16,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40393 states, 40391 states have (on average 3.8517986680201033) internal successors, (155578), 40392 states have internal predecessors, (155578), 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) [2021-06-05 18:24:16,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40393 states to 40393 states and 155578 transitions. [2021-06-05 18:24:16,978 INFO L78 Accepts]: Start accepts. Automaton has 40393 states and 155578 transitions. Word has length 51 [2021-06-05 18:24:16,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:24:16,979 INFO L482 AbstractCegarLoop]: Abstraction has 40393 states and 155578 transitions. [2021-06-05 18:24:16,979 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) [2021-06-05 18:24:16,979 INFO L276 IsEmpty]: Start isEmpty. Operand 40393 states and 155578 transitions. [2021-06-05 18:24:16,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 18:24:16,994 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:24:16,994 INFO L554 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] [2021-06-05 18:24:16,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 18:24:16,994 INFO L430 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:24:16,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:24:16,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1238919617, now seen corresponding path program 2 times [2021-06-05 18:24:16,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:24:16,995 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115939190] [2021-06-05 18:24:16,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:24:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:24:17,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:24:17,069 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:24:17,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115939190] [2021-06-05 18:24:17,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115939190] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:24:17,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:24:17,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 18:24:17,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857000814] [2021-06-05 18:24:17,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 18:24:17,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:24:17,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 18:24:17,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 18:24:17,072 INFO L87 Difference]: Start difference. First operand 40393 states and 155578 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) [2021-06-05 18:24:17,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:24:17,378 INFO L93 Difference]: Finished difference Result 49018 states and 185436 transitions. [2021-06-05 18:24:17,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 18:24:17,379 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 [2021-06-05 18:24:17,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:24:17,564 INFO L225 Difference]: With dead ends: 49018 [2021-06-05 18:24:17,564 INFO L226 Difference]: Without dead ends: 46612 [2021-06-05 18:24:17,565 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 18:24:18,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46612 states. [2021-06-05 18:24:18,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46612 to 33457. [2021-06-05 18:24:18,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33457 states, 33455 states have (on average 3.818353011507996) internal successors, (127743), 33456 states have internal predecessors, (127743), 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) [2021-06-05 18:24:19,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33457 states to 33457 states and 127743 transitions. [2021-06-05 18:24:19,089 INFO L78 Accepts]: Start accepts. Automaton has 33457 states and 127743 transitions. Word has length 51 [2021-06-05 18:24:19,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:24:19,089 INFO L482 AbstractCegarLoop]: Abstraction has 33457 states and 127743 transitions. [2021-06-05 18:24:19,089 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) [2021-06-05 18:24:19,090 INFO L276 IsEmpty]: Start isEmpty. Operand 33457 states and 127743 transitions. [2021-06-05 18:24:19,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 18:24:19,104 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:24:19,104 INFO L554 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] [2021-06-05 18:24:19,104 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 18:24:19,104 INFO L430 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:24:19,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:24:19,105 INFO L82 PathProgramCache]: Analyzing trace with hash -70072805, now seen corresponding path program 1 times [2021-06-05 18:24:19,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:24:19,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74977242] [2021-06-05 18:24:19,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:24:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:24:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:24:19,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:24:19,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74977242] [2021-06-05 18:24:19,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74977242] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:24:19,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:24:19,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 18:24:19,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240633432] [2021-06-05 18:24:19,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 18:24:19,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:24:19,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 18:24:19,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 18:24:19,157 INFO L87 Difference]: Start difference. First operand 33457 states and 127743 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) [2021-06-05 18:24:19,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:24:19,576 INFO L93 Difference]: Finished difference Result 64224 states and 243821 transitions. [2021-06-05 18:24:19,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 18:24:19,577 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 [2021-06-05 18:24:19,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:24:19,786 INFO L225 Difference]: With dead ends: 64224 [2021-06-05 18:24:19,786 INFO L226 Difference]: Without dead ends: 54908 [2021-06-05 18:24:19,786 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 51.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 18:24:20,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54908 states. [2021-06-05 18:24:21,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54908 to 29786. [2021-06-05 18:24:21,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29786 states, 29784 states have (on average 3.8131211388665056) internal successors, (113570), 29785 states have internal predecessors, (113570), 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) [2021-06-05 18:24:21,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29786 states to 29786 states and 113570 transitions. [2021-06-05 18:24:21,247 INFO L78 Accepts]: Start accepts. Automaton has 29786 states and 113570 transitions. Word has length 53 [2021-06-05 18:24:21,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:24:21,248 INFO L482 AbstractCegarLoop]: Abstraction has 29786 states and 113570 transitions. [2021-06-05 18:24:21,248 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) [2021-06-05 18:24:21,248 INFO L276 IsEmpty]: Start isEmpty. Operand 29786 states and 113570 transitions. [2021-06-05 18:24:21,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 18:24:21,261 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:24:21,261 INFO L554 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] [2021-06-05 18:24:21,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 18:24:21,262 INFO L430 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:24:21,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:24:21,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1382365090, now seen corresponding path program 1 times [2021-06-05 18:24:21,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:24:21,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328666427] [2021-06-05 18:24:21,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:24:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:24:21,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:24:21,363 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:24:21,363 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328666427] [2021-06-05 18:24:21,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328666427] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:24:21,364 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:24:21,364 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 18:24:21,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929663013] [2021-06-05 18:24:21,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 18:24:21,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:24:21,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 18:24:21,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-05 18:24:21,365 INFO L87 Difference]: Start difference. First operand 29786 states and 113570 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) [2021-06-05 18:24:21,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:24:21,465 INFO L93 Difference]: Finished difference Result 17079 states and 60712 transitions. [2021-06-05 18:24:21,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 18:24:21,465 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 [2021-06-05 18:24:21,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:24:21,502 INFO L225 Difference]: With dead ends: 17079 [2021-06-05 18:24:21,503 INFO L226 Difference]: Without dead ends: 15763 [2021-06-05 18:24:21,503 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.6ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-05 18:24:21,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15763 states. [2021-06-05 18:24:21,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15763 to 14851. [2021-06-05 18:24:21,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14851 states, 14850 states have (on average 3.5493602693602693) internal successors, (52708), 14850 states have internal predecessors, (52708), 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) [2021-06-05 18:24:21,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14851 states to 14851 states and 52708 transitions. [2021-06-05 18:24:21,860 INFO L78 Accepts]: Start accepts. Automaton has 14851 states and 52708 transitions. Word has length 54 [2021-06-05 18:24:21,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:24:21,861 INFO L482 AbstractCegarLoop]: Abstraction has 14851 states and 52708 transitions. [2021-06-05 18:24:21,861 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) [2021-06-05 18:24:21,861 INFO L276 IsEmpty]: Start isEmpty. Operand 14851 states and 52708 transitions. [2021-06-05 18:24:21,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 18:24:21,880 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:24:21,880 INFO L554 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, 1] [2021-06-05 18:24:21,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 18:24:21,880 INFO L430 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:24:21,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:24:21,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1390461149, now seen corresponding path program 1 times [2021-06-05 18:24:21,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:24:21,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362137867] [2021-06-05 18:24:21,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:24:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:24:21,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:24:21,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:24:21,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362137867] [2021-06-05 18:24:21,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362137867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:24:21,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:24:21,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 18:24:21,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095733298] [2021-06-05 18:24:21,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 18:24:21,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:24:21,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 18:24:21,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-05 18:24:21,960 INFO L87 Difference]: Start difference. First operand 14851 states and 52708 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-05 18:24:22,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:24:22,135 INFO L93 Difference]: Finished difference Result 16915 states and 59672 transitions. [2021-06-05 18:24:22,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 18:24:22,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2021-06-05 18:24:22,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:24:22,170 INFO L225 Difference]: With dead ends: 16915 [2021-06-05 18:24:22,171 INFO L226 Difference]: Without dead ends: 14521 [2021-06-05 18:24:22,171 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 68.2ms TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-06-05 18:24:22,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14521 states. [2021-06-05 18:24:22,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14521 to 13609. [2021-06-05 18:24:22,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13609 states, 13608 states have (on average 3.55761316872428) internal successors, (48412), 13608 states have internal predecessors, (48412), 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) [2021-06-05 18:24:22,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13609 states to 13609 states and 48412 transitions. [2021-06-05 18:24:22,668 INFO L78 Accepts]: Start accepts. Automaton has 13609 states and 48412 transitions. Word has length 61 [2021-06-05 18:24:22,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:24:22,668 INFO L482 AbstractCegarLoop]: Abstraction has 13609 states and 48412 transitions. [2021-06-05 18:24:22,668 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-05 18:24:22,669 INFO L276 IsEmpty]: Start isEmpty. Operand 13609 states and 48412 transitions. [2021-06-05 18:24:22,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 18:24:22,684 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:24:22,684 INFO L554 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, 1] [2021-06-05 18:24:22,684 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 18:24:22,684 INFO L430 AbstractCegarLoop]: === Iteration 7 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:24:22,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:24:22,685 INFO L82 PathProgramCache]: Analyzing trace with hash -352032653, now seen corresponding path program 2 times [2021-06-05 18:24:22,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:24:22,685 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440963365] [2021-06-05 18:24:22,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:24:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 18:24:22,719 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 18:24:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 18:24:22,737 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 18:24:22,768 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 18:24:22,768 INFO L655 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 18:24:22,768 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 18:24:22,769 INFO L301 ceAbstractionStarter]: Result for error location readerThread1of1ForFork2 was UNSAFE (2/4) [2021-06-05 18:24:22,770 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 18:24:22,772 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 18:24:22,772 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 18:24:22,772 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 18:24:22,772 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 18:24:22,772 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 18:24:22,772 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 18:24:22,772 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 18:24:22,773 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == readerThread1of1ForFork3======== [2021-06-05 18:24:22,777 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 121 places, 122 transitions, 312 flow [2021-06-05 18:24:29,595 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-05 18:24:29,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-05 18:24:29,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 18:24:29,673 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:24:29,673 INFO L554 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] [2021-06-05 18:24:29,673 INFO L430 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:24:29,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:24:29,674 INFO L82 PathProgramCache]: Analyzing trace with hash -984098930, now seen corresponding path program 1 times [2021-06-05 18:24:29,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:24:29,674 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887503902] [2021-06-05 18:24:29,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:24:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:24:29,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:24:29,712 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:24:29,712 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887503902] [2021-06-05 18:24:29,713 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887503902] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:24:29,713 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:24:29,713 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 18:24:29,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143556571] [2021-06-05 18:24:29,713 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 18:24:29,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:24:29,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 18:24:29,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 18:24:29,799 INFO L87 Difference]: Start difference. First operand has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-05 18:24:30,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:24:30,911 INFO L93 Difference]: Finished difference Result 139495 states and 565842 transitions. [2021-06-05 18:24:30,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 18:24:30,917 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 [2021-06-05 18:24:30,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:24:31,137 INFO L225 Difference]: With dead ends: 139495 [2021-06-05 18:24:31,138 INFO L226 Difference]: Without dead ends: 57269 [2021-06-05 18:24:31,138 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 72.6ms TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-06-05 18:24:31,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57269 states. [2021-06-05 18:24:32,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57269 to 44577. [2021-06-05 18:24:32,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44577 states, 44575 states have (on average 4.011351654514862) internal successors, (178806), 44576 states have internal predecessors, (178806), 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) [2021-06-05 18:24:32,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44577 states to 44577 states and 178806 transitions. [2021-06-05 18:24:32,971 INFO L78 Accepts]: Start accepts. Automaton has 44577 states and 178806 transitions. Word has length 36 [2021-06-05 18:24:32,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:24:32,971 INFO L482 AbstractCegarLoop]: Abstraction has 44577 states and 178806 transitions. [2021-06-05 18:24:32,971 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) [2021-06-05 18:24:32,971 INFO L276 IsEmpty]: Start isEmpty. Operand 44577 states and 178806 transitions. [2021-06-05 18:24:32,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-06-05 18:24:32,972 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:24:32,972 INFO L554 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] [2021-06-05 18:24:32,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 18:24:32,972 INFO L430 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:24:32,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:24:32,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1635968132, now seen corresponding path program 1 times [2021-06-05 18:24:32,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:24:32,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001936304] [2021-06-05 18:24:32,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:24:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:24:33,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:24:33,023 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:24:33,023 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001936304] [2021-06-05 18:24:33,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001936304] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:24:33,023 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:24:33,023 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 18:24:33,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850784184] [2021-06-05 18:24:33,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 18:24:33,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:24:33,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 18:24:33,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 18:24:33,026 INFO L87 Difference]: Start difference. First operand 44577 states and 178806 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) [2021-06-05 18:24:33,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:24:33,233 INFO L93 Difference]: Finished difference Result 41515 states and 160066 transitions. [2021-06-05 18:24:33,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 18:24:33,233 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 [2021-06-05 18:24:33,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:24:33,332 INFO L225 Difference]: With dead ends: 41515 [2021-06-05 18:24:33,333 INFO L226 Difference]: Without dead ends: 40543 [2021-06-05 18:24:33,333 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 18:24:33,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40543 states. [2021-06-05 18:24:34,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40543 to 40543. [2021-06-05 18:24:34,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40543 states, 40541 states have (on average 3.8536789916380947) internal successors, (156232), 40542 states have internal predecessors, (156232), 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) [2021-06-05 18:24:34,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40543 states to 40543 states and 156232 transitions. [2021-06-05 18:24:34,616 INFO L78 Accepts]: Start accepts. Automaton has 40543 states and 156232 transitions. Word has length 39 [2021-06-05 18:24:34,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:24:34,616 INFO L482 AbstractCegarLoop]: Abstraction has 40543 states and 156232 transitions. [2021-06-05 18:24:34,616 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) [2021-06-05 18:24:34,616 INFO L276 IsEmpty]: Start isEmpty. Operand 40543 states and 156232 transitions. [2021-06-05 18:24:34,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-06-05 18:24:34,617 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:24:34,617 INFO L554 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] [2021-06-05 18:24:34,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 18:24:34,617 INFO L430 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:24:34,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:24:34,617 INFO L82 PathProgramCache]: Analyzing trace with hash -936417620, now seen corresponding path program 2 times [2021-06-05 18:24:34,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:24:34,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824673853] [2021-06-05 18:24:34,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:24:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:24:34,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:24:34,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:24:34,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824673853] [2021-06-05 18:24:34,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824673853] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:24:34,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:24:34,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 18:24:34,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230351452] [2021-06-05 18:24:34,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 18:24:34,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:24:34,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 18:24:34,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 18:24:34,650 INFO L87 Difference]: Start difference. First operand 40543 states and 156232 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) [2021-06-05 18:24:34,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:24:34,788 INFO L93 Difference]: Finished difference Result 28307 states and 101757 transitions. [2021-06-05 18:24:34,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-05 18:24:34,789 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 [2021-06-05 18:24:34,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:24:34,858 INFO L225 Difference]: With dead ends: 28307 [2021-06-05 18:24:34,858 INFO L226 Difference]: Without dead ends: 25287 [2021-06-05 18:24:34,858 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 18:24:35,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25287 states. [2021-06-05 18:24:35,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25287 to 22140. [2021-06-05 18:24:35,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22140 states, 22135 states have (on average 3.6149988705669753) internal successors, (80018), 22139 states have internal predecessors, (80018), 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) [2021-06-05 18:24:35,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22140 states to 22140 states and 80018 transitions. [2021-06-05 18:24:35,749 INFO L78 Accepts]: Start accepts. Automaton has 22140 states and 80018 transitions. Word has length 39 [2021-06-05 18:24:35,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:24:35,749 INFO L482 AbstractCegarLoop]: Abstraction has 22140 states and 80018 transitions. [2021-06-05 18:24:35,749 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) [2021-06-05 18:24:35,749 INFO L276 IsEmpty]: Start isEmpty. Operand 22140 states and 80018 transitions. [2021-06-05 18:24:35,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 18:24:35,759 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:24:35,759 INFO L554 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] [2021-06-05 18:24:35,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 18:24:35,759 INFO L430 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:24:35,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:24:35,760 INFO L82 PathProgramCache]: Analyzing trace with hash -652853471, now seen corresponding path program 1 times [2021-06-05 18:24:35,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:24:35,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412633961] [2021-06-05 18:24:35,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:24:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:24:35,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:24:35,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:24:35,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412633961] [2021-06-05 18:24:35,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412633961] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:24:35,818 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:24:35,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 18:24:35,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237936495] [2021-06-05 18:24:35,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 18:24:35,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:24:35,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 18:24:35,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 18:24:35,819 INFO L87 Difference]: Start difference. First operand 22140 states and 80018 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) [2021-06-05 18:24:36,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:24:36,044 INFO L93 Difference]: Finished difference Result 23982 states and 84642 transitions. [2021-06-05 18:24:36,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 18:24:36,045 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 [2021-06-05 18:24:36,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:24:36,090 INFO L225 Difference]: With dead ends: 23982 [2021-06-05 18:24:36,090 INFO L226 Difference]: Without dead ends: 17305 [2021-06-05 18:24:36,090 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 48.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 18:24:36,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17305 states. [2021-06-05 18:24:36,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17305 to 14095. [2021-06-05 18:24:36,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14095 states, 14094 states have (on average 3.5788278700156093) internal successors, (50440), 14094 states have internal predecessors, (50440), 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) [2021-06-05 18:24:36,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14095 states to 14095 states and 50440 transitions. [2021-06-05 18:24:36,773 INFO L78 Accepts]: Start accepts. Automaton has 14095 states and 50440 transitions. Word has length 53 [2021-06-05 18:24:36,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:24:36,774 INFO L482 AbstractCegarLoop]: Abstraction has 14095 states and 50440 transitions. [2021-06-05 18:24:36,774 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) [2021-06-05 18:24:36,774 INFO L276 IsEmpty]: Start isEmpty. Operand 14095 states and 50440 transitions. [2021-06-05 18:24:36,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 18:24:36,791 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:24:36,791 INFO L554 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, 1] [2021-06-05 18:24:36,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 18:24:36,791 INFO L430 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:24:36,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:24:36,791 INFO L82 PathProgramCache]: Analyzing trace with hash -454203158, now seen corresponding path program 1 times [2021-06-05 18:24:36,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:24:36,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198669568] [2021-06-05 18:24:36,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:24:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:24:36,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:24:36,900 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:24:36,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198669568] [2021-06-05 18:24:36,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198669568] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:24:36,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:24:36,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 18:24:36,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231098372] [2021-06-05 18:24:36,902 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 18:24:36,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:24:36,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 18:24:36,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-05 18:24:36,903 INFO L87 Difference]: Start difference. First operand 14095 states and 50440 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-05 18:24:37,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:24:37,056 INFO L93 Difference]: Finished difference Result 16463 states and 58488 transitions. [2021-06-05 18:24:37,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 18:24:37,057 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2021-06-05 18:24:37,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:24:37,087 INFO L225 Difference]: With dead ends: 16463 [2021-06-05 18:24:37,087 INFO L226 Difference]: Without dead ends: 11767 [2021-06-05 18:24:37,087 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 39.0ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-06-05 18:24:37,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11767 states. [2021-06-05 18:24:37,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11767 to 10855. [2021-06-05 18:24:37,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10855 states, 10854 states have (on average 3.5459738345310483) internal successors, (38488), 10854 states have internal predecessors, (38488), 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) [2021-06-05 18:24:37,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10855 states to 10855 states and 38488 transitions. [2021-06-05 18:24:37,293 INFO L78 Accepts]: Start accepts. Automaton has 10855 states and 38488 transitions. Word has length 61 [2021-06-05 18:24:37,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:24:37,293 INFO L482 AbstractCegarLoop]: Abstraction has 10855 states and 38488 transitions. [2021-06-05 18:24:37,293 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-05 18:24:37,294 INFO L276 IsEmpty]: Start isEmpty. Operand 10855 states and 38488 transitions. [2021-06-05 18:24:37,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 18:24:37,304 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:24:37,304 INFO L554 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, 1] [2021-06-05 18:24:37,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 18:24:37,304 INFO L430 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:24:37,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:24:37,304 INFO L82 PathProgramCache]: Analyzing trace with hash -700104114, now seen corresponding path program 2 times [2021-06-05 18:24:37,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:24:37,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080181305] [2021-06-05 18:24:37,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:24:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 18:24:37,316 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 18:24:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 18:24:37,325 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 18:24:37,341 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 18:24:37,342 INFO L655 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 18:24:37,342 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 18:24:37,342 INFO L301 ceAbstractionStarter]: Result for error location readerThread1of1ForFork3 was UNSAFE (3/4) [2021-06-05 18:24:37,342 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 18:24:37,343 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 18:24:37,343 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 18:24:37,343 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 18:24:37,343 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 18:24:37,343 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 18:24:37,343 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 18:24:37,343 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 18:24:37,344 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 18:24:37,349 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 121 places, 122 transitions, 312 flow [2021-06-05 18:24:44,485 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-05 18:24:44,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 65290 states, 65286 states have (on average 4.213215697086665) internal successors, (275064), 65289 states have internal predecessors, (275064), 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) [2021-06-05 18:24:44,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 18:24:44,733 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (4/4) [2021-06-05 18:24:44,733 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 18:24:44,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 06:24:44 BasicIcfg [2021-06-05 18:24:44,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 18:24:44,791 INFO L168 Benchmark]: Toolchain (without parser) took 51380.72 ms. Allocated memory was 354.4 MB in the beginning and 12.9 GB in the end (delta: 12.5 GB). Free memory was 316.8 MB in the beginning and 9.4 GB in the end (delta: -9.1 GB). Peak memory consumption was 3.5 GB. Max. memory is 16.0 GB. [2021-06-05 18:24:44,791 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 354.4 MB. Free memory was 334.8 MB in the beginning and 334.7 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 18:24:44,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.84 ms. Allocated memory is still 354.4 MB. Free memory was 316.6 MB in the beginning and 316.1 MB in the end (delta: 559.7 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. [2021-06-05 18:24:44,791 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.70 ms. Allocated memory is still 354.4 MB. Free memory was 316.1 MB in the beginning and 314.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 18:24:44,792 INFO L168 Benchmark]: Boogie Preprocessor took 19.40 ms. Allocated memory is still 354.4 MB. Free memory was 314.0 MB in the beginning and 312.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 18:24:44,792 INFO L168 Benchmark]: RCFGBuilder took 566.54 ms. Allocated memory is still 354.4 MB. Free memory was 312.9 MB in the beginning and 278.3 MB in the end (delta: 34.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. [2021-06-05 18:24:44,792 INFO L168 Benchmark]: TraceAbstraction took 50333.47 ms. Allocated memory was 354.4 MB in the beginning and 12.9 GB in the end (delta: 12.5 GB). Free memory was 278.3 MB in the beginning and 9.4 GB in the end (delta: -9.1 GB). Peak memory consumption was 3.4 GB. Max. memory is 16.0 GB. [2021-06-05 18:24:44,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 354.4 MB. Free memory was 334.8 MB in the beginning and 334.7 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 406.84 ms. Allocated memory is still 354.4 MB. Free memory was 316.6 MB in the beginning and 316.1 MB in the end (delta: 559.7 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 35.70 ms. Allocated memory is still 354.4 MB. Free memory was 316.1 MB in the beginning and 314.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.40 ms. Allocated memory is still 354.4 MB. Free memory was 314.0 MB in the beginning and 312.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 566.54 ms. Allocated memory is still 354.4 MB. Free memory was 312.9 MB in the beginning and 278.3 MB in the end (delta: 34.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 50333.47 ms. Allocated memory was 354.4 MB in the beginning and 12.9 GB in the end (delta: 12.5 GB). Free memory was 278.3 MB in the beginning and 9.4 GB in the end (delta: -9.1 GB). Peak memory consumption was 3.4 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 738]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L704] 0 int w=0, r=0, x, y; VAL [r=0, w=0, x=0, y=0] [L748] 0 pthread_t t1, t2, t3, t4; VAL [r=0, w=0, x=0, y=0] [L749] FCALL, FORK 0 pthread_create(&t1, 0, writer, 0) VAL [r=0, w=0, x=0, y=0] [L750] FCALL, FORK 0 pthread_create(&t2, 0, reader, 0) VAL [r=0, w=0, x=0, y=0] [L724] 2 int l; VAL [r=0, w=0, x=0, y=0] [L751] FCALL, FORK 0 pthread_create(&t3, 0, writer, 0) VAL [r=0, w=0, x=0, y=0] [L752] FCALL, FORK 0 pthread_create(&t4, 0, reader, 0) VAL [r=0, w=0, x=0, y=0] [L724] 4 int l; VAL [r=0, w=0, x=0, y=0] [L725] 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 [L725] RET 4 __VERIFIER_atomic_take_read_lock() [L727] 4 l = x VAL [r=1, w=0, x=0, y=0] [L730] 4 y = l VAL [r=1, w=0, x=0, y=0] [L733] 4 int ly = y; VAL [r=1, w=0, x=0, y=0] [L736] 4 int lx = x; VAL [r=1, w=0, x=0, y=0] [L738] COND FALSE 4 !(!(ly == lx)) VAL [r=1, w=0, x=0, y=0] [L740] 4 l = r-1 VAL [r=1, w=0, x=0, y=0] [L725] 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 [L725] RET 2 __VERIFIER_atomic_take_read_lock() [L727] 2 l = x VAL [r=2, w=0, x=0, y=0] [L730] 2 y = l VAL [r=2, w=0, x=0, y=0] [L733] 2 int ly = y; VAL [r=2, w=0, x=0, y=0] [L743] 4 r = l VAL [r=0, w=0, x=0, y=0] [L714] CALL 1 __VERIFIER_atomic_take_write_lock() [L706] CALL 1 assume_abort_if_not(w==0 && r==0) [L3] COND FALSE 1 !(!cond) [L706] RET 1 assume_abort_if_not(w==0 && r==0) [L707] 1 w = 1 [L714] RET 1 __VERIFIER_atomic_take_write_lock() [L716] 1 x = 3 VAL [r=0, w=1, x=3, y=0] [L736] 2 int lx = x; VAL [r=0, w=1, x=3, y=0] [L738] COND TRUE 2 !(ly == lx) VAL [r=0, w=1, x=3, y=0] [L738] 2 reach_error() VAL [r=0, w=1, x=3, y=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: reader with 1 thread instances CFG has 7 procedures, 135 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7696.8ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 628.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7065.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=65290occurred 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: readerThread1of1ForFork2 with 1 thread instances CFG has 7 procedures, 135 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20413.4ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 259.1ms, AutomataDifference: 4393.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6504.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1229 SDtfs, 1448 SDslu, 2529 SDs, 0 SdLazy, 336 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 238.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 240.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=65290occurred in iteration=0, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8460.2ms AutomataMinimizationTime, 6 MinimizatonAttempts, 52793 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.8ms SsaConstructionTime, 159.9ms SatisfiabilityAnalysisTime, 404.4ms InterpolantComputationTime, 379 NumberOfCodeBlocks, 379 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 686 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, 135 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14570.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 115.6ms, AutomataDifference: 2397.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6822.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1123 SDtfs, 1156 SDslu, 2597 SDs, 0 SdLazy, 291 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 158.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 166.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=65290occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 4894.0ms AutomataMinimizationTime, 5 MinimizatonAttempts, 19961 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.3ms SsaConstructionTime, 49.7ms SatisfiabilityAnalysisTime, 186.6ms InterpolantComputationTime, 289 NumberOfCodeBlocks, 289 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 409 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 135 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7389.8ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 247.2ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7141.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=65290occurred 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...