/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-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 22:51:08,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 22:51:08,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 22:51:08,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 22:51:08,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 22:51:08,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 22:51:08,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 22:51:08,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 22:51:08,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 22:51:08,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 22:51:08,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 22:51:08,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 22:51:08,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 22:51:08,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 22:51:08,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 22:51:08,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 22:51:08,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 22:51:08,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 22:51:08,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 22:51:08,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 22:51:08,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 22:51:08,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 22:51:08,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 22:51:08,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 22:51:08,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 22:51:08,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 22:51:08,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 22:51:08,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 22:51:08,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 22:51:08,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 22:51:08,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 22:51:08,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 22:51:08,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 22:51:08,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 22:51:08,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 22:51:08,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 22:51:08,349 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-PN-RepeatedSemanticLbeWithPredicates.epf [2021-03-25 22:51:08,384 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 22:51:08,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 22:51:08,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 22:51:08,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 22:51:08,392 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 22:51:08,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 22:51:08,392 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 22:51:08,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 22:51:08,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 22:51:08,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 22:51:08,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 22:51:08,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 22:51:08,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 22:51:08,394 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 22:51:08,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 22:51:08,394 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 22:51:08,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 22:51:08,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 22:51:08,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 22:51:08,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 22:51:08,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 22:51:08,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 22:51:08,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 22:51:08,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 22:51:08,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 22:51:08,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 22:51:08,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 22:51:08,396 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-25 22:51:08,396 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 22:51:08,396 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 22:51:08,396 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 22:51:08,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 22:51:08,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 22:51:08,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 22:51:08,651 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 22:51:08,652 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 22:51:08,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-03-25 22:51:08,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f669db498/9586179d45b347d4923d3e73418908b9/FLAGda6bb2fcf [2021-03-25 22:51:09,294 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 22:51:09,295 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-03-25 22:51:09,304 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f669db498/9586179d45b347d4923d3e73418908b9/FLAGda6bb2fcf [2021-03-25 22:51:09,563 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f669db498/9586179d45b347d4923d3e73418908b9 [2021-03-25 22:51:09,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 22:51:09,571 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 22:51:09,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 22:51:09,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 22:51:09,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 22:51:09,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 10:51:09" (1/1) ... [2021-03-25 22:51:09,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472a4ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 10:51:09, skipping insertion in model container [2021-03-25 22:51:09,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 10:51:09" (1/1) ... [2021-03-25 22:51:09,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 22:51:09,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 22:51:09,841 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 22:51:09,946 WARN L226 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] [2021-03-25 22:51:09,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 22:51:09,960 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 22:51:09,972 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 22:51:10,004 WARN L226 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] [2021-03-25 22:51:10,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 22:51:10,075 INFO L208 MainTranslator]: Completed translation [2021-03-25 22:51:10,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 10:51:10 WrapperNode [2021-03-25 22:51:10,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 22:51:10,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 22:51:10,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 22:51:10,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 22:51:10,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 10:51:10" (1/1) ... [2021-03-25 22:51:10,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 10:51:10" (1/1) ... [2021-03-25 22:51:10,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 22:51:10,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 22:51:10,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 22:51:10,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 22:51:10,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 10:51:10" (1/1) ... [2021-03-25 22:51:10,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 10:51:10" (1/1) ... [2021-03-25 22:51:10,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 10:51:10" (1/1) ... [2021-03-25 22:51:10,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 10:51:10" (1/1) ... [2021-03-25 22:51:10,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 10:51:10" (1/1) ... [2021-03-25 22:51:10,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 10:51:10" (1/1) ... [2021-03-25 22:51:10,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 10:51:10" (1/1) ... [2021-03-25 22:51:10,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 22:51:10,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 22:51:10,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 22:51:10,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 22:51:10,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 10:51:10" (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 [2021-03-25 22:51:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-25 22:51:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 22:51:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 22:51:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-03-25 22:51:10,215 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-03-25 22:51:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 22:51:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 22:51:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 22:51:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 22:51:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 22:51:10,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 22:51:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-03-25 22:51:10,216 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-03-25 22:51:10,217 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 22:51:10,585 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 22:51:10,585 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-25 22:51:10,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 10:51:10 BoogieIcfgContainer [2021-03-25 22:51:10,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 22:51:10,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 22:51:10,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 22:51:10,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 22:51:10,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 10:51:09" (1/3) ... [2021-03-25 22:51:10,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f97dd07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 10:51:10, skipping insertion in model container [2021-03-25 22:51:10,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 10:51:10" (2/3) ... [2021-03-25 22:51:10,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f97dd07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 10:51:10, skipping insertion in model container [2021-03-25 22:51:10,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 10:51:10" (3/3) ... [2021-03-25 22:51:10,593 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2021-03-25 22:51:10,598 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 22:51:10,601 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 22:51:10,602 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 22:51:10,630 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,630 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,638 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,638 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,639 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,639 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,639 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,639 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,639 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,639 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,640 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,640 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,640 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,640 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,641 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,641 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,641 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,641 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,641 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,642 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,642 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,642 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,643 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,643 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,643 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,643 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,643 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,644 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,644 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,644 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,644 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,644 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,645 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,645 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,645 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,645 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,645 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,645 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,646 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,646 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,646 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,647 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,647 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,647 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,647 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,647 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,647 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,647 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,648 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,648 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,648 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,648 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,648 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,648 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,649 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,650 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,650 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,650 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,650 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,650 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,650 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,650 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,651 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,651 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,651 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,651 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,651 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,651 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,652 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,652 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,652 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,652 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,652 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,652 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,652 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,652 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,653 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,653 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,653 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,653 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,653 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,653 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,654 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,654 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,654 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,654 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,654 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,654 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,654 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,654 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,655 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,655 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,655 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,655 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,655 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,655 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,655 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,656 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,656 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,656 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,656 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,656 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,658 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,658 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,658 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,658 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,658 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,659 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,660 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,660 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,661 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,661 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,661 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,661 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,661 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,661 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,661 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,662 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,662 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,663 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,663 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,663 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,663 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,664 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,664 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,664 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,664 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,665 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,665 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,665 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,665 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,665 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 22:51:10,676 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-03-25 22:51:10,691 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 22:51:10,707 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 22:51:10,708 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 22:51:10,708 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 22:51:10,708 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 22:51:10,708 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 22:51:10,708 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 22:51:10,708 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 22:51:10,708 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 22:51:10,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 110 transitions, 288 flow [2021-03-25 22:51:10,758 INFO L129 PetriNetUnfolder]: 19/144 cut-off events. [2021-03-25 22:51:10,759 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-25 22:51:10,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 144 events. 19/144 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 345 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 97. Up to 12 conditions per place. [2021-03-25 22:51:10,765 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 110 transitions, 288 flow [2021-03-25 22:51:10,769 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 90 transitions, 228 flow [2021-03-25 22:51:10,770 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-25 22:51:10,779 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 90 transitions, 228 flow [2021-03-25 22:51:10,782 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 90 transitions, 228 flow [2021-03-25 22:51:10,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 90 transitions, 228 flow [2021-03-25 22:51:10,804 INFO L129 PetriNetUnfolder]: 16/128 cut-off events. [2021-03-25 22:51:10,804 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-03-25 22:51:10,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 128 events. 16/128 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 333 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 97. Up to 12 conditions per place. [2021-03-25 22:51:10,809 INFO L142 LiptonReduction]: Number of co-enabled transitions 2994 [2021-03-25 22:51:12,211 INFO L154 LiptonReduction]: Checked pairs total: 4484 [2021-03-25 22:51:12,211 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-25 22:51:12,213 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1444 [2021-03-25 22:51:12,223 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-25 22:51:12,224 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 22:51:12,224 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 22:51:12,224 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 22:51:12,225 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 22:51:12,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 22:51:12,229 INFO L82 PathProgramCache]: Analyzing trace with hash -434817972, now seen corresponding path program 1 times [2021-03-25 22:51:12,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 22:51:12,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662885595] [2021-03-25 22:51:12,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 22:51:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 22:51:12,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:12,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 22:51:12,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:12,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:12,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:12,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:12,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:12,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:12,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 22:51:12,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662885595] [2021-03-25 22:51:12,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 22:51:12,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 22:51:12,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848116979] [2021-03-25 22:51:12,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 22:51:12,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 22:51:12,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 22:51:12,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 22:51:12,410 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 154 [2021-03-25 22:51:12,413 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 158 flow. Second operand has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 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) [2021-03-25 22:51:12,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 22:51:12,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 154 [2021-03-25 22:51:12,415 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 22:51:12,808 INFO L129 PetriNetUnfolder]: 1159/2475 cut-off events. [2021-03-25 22:51:12,809 INFO L130 PetriNetUnfolder]: For 498/498 co-relation queries the response was YES. [2021-03-25 22:51:12,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4523 conditions, 2475 events. 1159/2475 cut-off events. For 498/498 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 18914 event pairs, 210 based on Foata normal form. 135/2288 useless extension candidates. Maximal degree in co-relation 3949. Up to 935 conditions per place. [2021-03-25 22:51:12,833 INFO L132 encePairwiseOnDemand]: 142/154 looper letters, 58 selfloop transitions, 26 changer transitions 0/118 dead transitions. [2021-03-25 22:51:12,834 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 118 transitions, 455 flow [2021-03-25 22:51:12,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 22:51:12,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 22:51:12,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1168 transitions. [2021-03-25 22:51:12,847 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8427128427128427 [2021-03-25 22:51:12,848 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1168 transitions. [2021-03-25 22:51:12,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1168 transitions. [2021-03-25 22:51:12,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 22:51:12,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1168 transitions. [2021-03-25 22:51:12,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 129.77777777777777) internal successors, (1168), 9 states have internal predecessors, (1168), 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) [2021-03-25 22:51:12,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 154.0) internal successors, (1540), 10 states have internal predecessors, (1540), 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) [2021-03-25 22:51:12,866 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 154.0) internal successors, (1540), 10 states have internal predecessors, (1540), 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) [2021-03-25 22:51:12,867 INFO L185 Difference]: Start difference. First operand has 57 places, 55 transitions, 158 flow. Second operand 9 states and 1168 transitions. [2021-03-25 22:51:12,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 118 transitions, 455 flow [2021-03-25 22:51:12,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 118 transitions, 421 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-25 22:51:12,904 INFO L241 Difference]: Finished difference. Result has 61 places, 78 transitions, 267 flow [2021-03-25 22:51:12,906 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=267, PETRI_PLACES=61, PETRI_TRANSITIONS=78} [2021-03-25 22:51:12,907 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2021-03-25 22:51:12,907 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-25 22:51:12,907 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 78 transitions, 267 flow [2021-03-25 22:51:12,908 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 78 transitions, 267 flow [2021-03-25 22:51:12,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 78 transitions, 267 flow [2021-03-25 22:51:12,962 INFO L129 PetriNetUnfolder]: 178/662 cut-off events. [2021-03-25 22:51:12,963 INFO L130 PetriNetUnfolder]: For 24/27 co-relation queries the response was YES. [2021-03-25 22:51:12,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 662 events. 178/662 cut-off events. For 24/27 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5141 event pairs, 5 based on Foata normal form. 0/610 useless extension candidates. Maximal degree in co-relation 725. Up to 116 conditions per place. [2021-03-25 22:51:12,972 INFO L142 LiptonReduction]: Number of co-enabled transitions 2066 [2021-03-25 22:51:13,480 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2021-03-25 22:51:13,645 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2021-03-25 22:51:14,043 INFO L154 LiptonReduction]: Checked pairs total: 7440 [2021-03-25 22:51:14,043 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 22:51:14,043 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1136 [2021-03-25 22:51:14,045 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 74 transitions, 259 flow [2021-03-25 22:51:14,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 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) [2021-03-25 22:51:14,045 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 22:51:14,046 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 22:51:14,046 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 22:51:14,046 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 22:51:14,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 22:51:14,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1245912937, now seen corresponding path program 1 times [2021-03-25 22:51:14,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 22:51:14,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173238972] [2021-03-25 22:51:14,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 22:51:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 22:51:14,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:14,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 22:51:14,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:14,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:14,120 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-25 22:51:14,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 22:51:14,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:14,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 22:51:14,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 22:51:14,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173238972] [2021-03-25 22:51:14,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 22:51:14,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 22:51:14,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291904663] [2021-03-25 22:51:14,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 22:51:14,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 22:51:14,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 22:51:14,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 22:51:14,141 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 158 [2021-03-25 22:51:14,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 74 transitions, 259 flow. Second operand has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2021-03-25 22:51:14,142 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 22:51:14,142 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 158 [2021-03-25 22:51:14,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 22:51:14,480 INFO L129 PetriNetUnfolder]: 1194/3581 cut-off events. [2021-03-25 22:51:14,480 INFO L130 PetriNetUnfolder]: For 281/323 co-relation queries the response was YES. [2021-03-25 22:51:14,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5762 conditions, 3581 events. 1194/3581 cut-off events. For 281/323 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 36981 event pairs, 76 based on Foata normal form. 227/3601 useless extension candidates. Maximal degree in co-relation 4565. Up to 564 conditions per place. [2021-03-25 22:51:14,510 INFO L132 encePairwiseOnDemand]: 149/158 looper letters, 28 selfloop transitions, 19 changer transitions 0/107 dead transitions. [2021-03-25 22:51:14,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 107 transitions, 452 flow [2021-03-25 22:51:14,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 22:51:14,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 22:51:14,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 651 transitions. [2021-03-25 22:51:14,512 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8240506329113924 [2021-03-25 22:51:14,512 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 651 transitions. [2021-03-25 22:51:14,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 651 transitions. [2021-03-25 22:51:14,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 22:51:14,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 651 transitions. [2021-03-25 22:51:14,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.2) internal successors, (651), 5 states have internal predecessors, (651), 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) [2021-03-25 22:51:14,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 158.0) internal successors, (948), 6 states have internal predecessors, (948), 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) [2021-03-25 22:51:14,517 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 158.0) internal successors, (948), 6 states have internal predecessors, (948), 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) [2021-03-25 22:51:14,517 INFO L185 Difference]: Start difference. First operand has 57 places, 74 transitions, 259 flow. Second operand 5 states and 651 transitions. [2021-03-25 22:51:14,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 107 transitions, 452 flow [2021-03-25 22:51:14,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 107 transitions, 452 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 22:51:14,524 INFO L241 Difference]: Finished difference. Result has 63 places, 90 transitions, 363 flow [2021-03-25 22:51:14,524 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=363, PETRI_PLACES=63, PETRI_TRANSITIONS=90} [2021-03-25 22:51:14,525 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2021-03-25 22:51:14,525 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-25 22:51:14,525 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 90 transitions, 363 flow [2021-03-25 22:51:14,526 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 90 transitions, 363 flow [2021-03-25 22:51:14,527 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 90 transitions, 363 flow [2021-03-25 22:51:14,722 INFO L129 PetriNetUnfolder]: 732/2578 cut-off events. [2021-03-25 22:51:14,722 INFO L130 PetriNetUnfolder]: For 264/266 co-relation queries the response was YES. [2021-03-25 22:51:14,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4074 conditions, 2578 events. 732/2578 cut-off events. For 264/266 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 26489 event pairs, 19 based on Foata normal form. 0/2420 useless extension candidates. Maximal degree in co-relation 3299. Up to 468 conditions per place. [2021-03-25 22:51:14,754 INFO L142 LiptonReduction]: Number of co-enabled transitions 2536 [2021-03-25 22:51:15,281 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2021-03-25 22:51:15,401 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-03-25 22:51:15,633 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2021-03-25 22:51:15,740 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-03-25 22:51:15,914 INFO L154 LiptonReduction]: Checked pairs total: 1872 [2021-03-25 22:51:15,914 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 22:51:15,914 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1389 [2021-03-25 22:51:15,916 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 89 transitions, 361 flow [2021-03-25 22:51:15,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2021-03-25 22:51:15,916 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 22:51:15,916 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 22:51:15,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 22:51:15,917 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 22:51:15,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 22:51:15,917 INFO L82 PathProgramCache]: Analyzing trace with hash 905083927, now seen corresponding path program 1 times [2021-03-25 22:51:15,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 22:51:15,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591239165] [2021-03-25 22:51:15,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 22:51:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 22:51:15,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:15,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 22:51:15,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:15,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:15,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:15,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:15,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:15,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:15,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 22:51:15,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591239165] [2021-03-25 22:51:15,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 22:51:15,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 22:51:15,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264527271] [2021-03-25 22:51:15,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 22:51:15,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 22:51:15,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 22:51:15,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 22:51:15,986 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 159 [2021-03-25 22:51:15,987 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 89 transitions, 361 flow. Second operand has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 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) [2021-03-25 22:51:15,987 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 22:51:15,987 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 159 [2021-03-25 22:51:15,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 22:51:16,948 INFO L129 PetriNetUnfolder]: 4240/10672 cut-off events. [2021-03-25 22:51:16,949 INFO L130 PetriNetUnfolder]: For 3856/3940 co-relation queries the response was YES. [2021-03-25 22:51:16,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22628 conditions, 10672 events. 4240/10672 cut-off events. For 3856/3940 co-relation queries the response was YES. Maximal size of possible extension queue 964. Compared 118064 event pairs, 531 based on Foata normal form. 15/9832 useless extension candidates. Maximal degree in co-relation 17228. Up to 2861 conditions per place. [2021-03-25 22:51:17,058 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 94 selfloop transitions, 77 changer transitions 0/214 dead transitions. [2021-03-25 22:51:17,058 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 214 transitions, 1255 flow [2021-03-25 22:51:17,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 22:51:17,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 22:51:17,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1168 transitions. [2021-03-25 22:51:17,061 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8162124388539483 [2021-03-25 22:51:17,061 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1168 transitions. [2021-03-25 22:51:17,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1168 transitions. [2021-03-25 22:51:17,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 22:51:17,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1168 transitions. [2021-03-25 22:51:17,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 129.77777777777777) internal successors, (1168), 9 states have internal predecessors, (1168), 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) [2021-03-25 22:51:17,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 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) [2021-03-25 22:51:17,136 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 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) [2021-03-25 22:51:17,136 INFO L185 Difference]: Start difference. First operand has 62 places, 89 transitions, 361 flow. Second operand 9 states and 1168 transitions. [2021-03-25 22:51:17,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 214 transitions, 1255 flow [2021-03-25 22:51:17,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 214 transitions, 1255 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 22:51:17,168 INFO L241 Difference]: Finished difference. Result has 74 places, 164 transitions, 968 flow [2021-03-25 22:51:17,169 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=968, PETRI_PLACES=74, PETRI_TRANSITIONS=164} [2021-03-25 22:51:17,169 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 17 predicate places. [2021-03-25 22:51:17,169 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-25 22:51:17,169 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 164 transitions, 968 flow [2021-03-25 22:51:17,169 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 164 transitions, 968 flow [2021-03-25 22:51:17,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 164 transitions, 968 flow [2021-03-25 22:51:17,607 INFO L129 PetriNetUnfolder]: 1736/5780 cut-off events. [2021-03-25 22:51:17,608 INFO L130 PetriNetUnfolder]: For 1400/1509 co-relation queries the response was YES. [2021-03-25 22:51:17,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10516 conditions, 5780 events. 1736/5780 cut-off events. For 1400/1509 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 67716 event pairs, 35 based on Foata normal form. 49/5520 useless extension candidates. Maximal degree in co-relation 9682. Up to 1046 conditions per place. [2021-03-25 22:51:17,679 INFO L142 LiptonReduction]: Number of co-enabled transitions 4204 [2021-03-25 22:51:18,720 INFO L154 LiptonReduction]: Checked pairs total: 474 [2021-03-25 22:51:18,720 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 22:51:18,720 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1551 [2021-03-25 22:51:18,721 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 164 transitions, 968 flow [2021-03-25 22:51:18,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 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) [2021-03-25 22:51:18,722 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 22:51:18,722 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 22:51:18,722 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 22:51:18,722 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 22:51:18,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 22:51:18,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1785317024, now seen corresponding path program 1 times [2021-03-25 22:51:18,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 22:51:18,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768724220] [2021-03-25 22:51:18,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 22:51:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 22:51:18,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:18,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:18,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:18,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:18,770 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-25 22:51:18,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 22:51:18,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:18,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 22:51:18,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 22:51:18,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768724220] [2021-03-25 22:51:18,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 22:51:18,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 22:51:18,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343260332] [2021-03-25 22:51:18,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 22:51:18,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 22:51:18,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 22:51:18,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 22:51:18,779 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 159 [2021-03-25 22:51:18,779 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 164 transitions, 968 flow. Second operand has 5 states, 5 states have (on average 122.8) internal successors, (614), 5 states have internal predecessors, (614), 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) [2021-03-25 22:51:18,779 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 22:51:18,779 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 159 [2021-03-25 22:51:18,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 22:51:18,979 INFO L129 PetriNetUnfolder]: 720/2308 cut-off events. [2021-03-25 22:51:18,980 INFO L130 PetriNetUnfolder]: For 935/984 co-relation queries the response was YES. [2021-03-25 22:51:18,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4656 conditions, 2308 events. 720/2308 cut-off events. For 935/984 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 22332 event pairs, 14 based on Foata normal form. 82/2298 useless extension candidates. Maximal degree in co-relation 4419. Up to 430 conditions per place. [2021-03-25 22:51:18,999 INFO L132 encePairwiseOnDemand]: 150/159 looper letters, 32 selfloop transitions, 17 changer transitions 4/142 dead transitions. [2021-03-25 22:51:18,999 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 142 transitions, 860 flow [2021-03-25 22:51:19,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 22:51:19,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 22:51:19,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 643 transitions. [2021-03-25 22:51:19,001 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8088050314465409 [2021-03-25 22:51:19,001 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 643 transitions. [2021-03-25 22:51:19,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 643 transitions. [2021-03-25 22:51:19,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 22:51:19,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 643 transitions. [2021-03-25 22:51:19,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.6) internal successors, (643), 5 states have internal predecessors, (643), 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) [2021-03-25 22:51:19,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 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) [2021-03-25 22:51:19,007 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 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) [2021-03-25 22:51:19,007 INFO L185 Difference]: Start difference. First operand has 74 places, 164 transitions, 968 flow. Second operand 5 states and 643 transitions. [2021-03-25 22:51:19,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 142 transitions, 860 flow [2021-03-25 22:51:19,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 142 transitions, 840 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 22:51:19,020 INFO L241 Difference]: Finished difference. Result has 77 places, 122 transitions, 684 flow [2021-03-25 22:51:19,020 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=684, PETRI_PLACES=77, PETRI_TRANSITIONS=122} [2021-03-25 22:51:19,020 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 20 predicate places. [2021-03-25 22:51:19,020 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-25 22:51:19,020 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 122 transitions, 684 flow [2021-03-25 22:51:19,021 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 122 transitions, 684 flow [2021-03-25 22:51:19,021 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 122 transitions, 684 flow [2021-03-25 22:51:19,124 INFO L129 PetriNetUnfolder]: 534/1893 cut-off events. [2021-03-25 22:51:19,124 INFO L130 PetriNetUnfolder]: For 489/523 co-relation queries the response was YES. [2021-03-25 22:51:19,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3514 conditions, 1893 events. 534/1893 cut-off events. For 489/523 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 18423 event pairs, 3 based on Foata normal form. 0/1809 useless extension candidates. Maximal degree in co-relation 3330. Up to 360 conditions per place. [2021-03-25 22:51:19,145 INFO L142 LiptonReduction]: Number of co-enabled transitions 2546 [2021-03-25 22:51:19,207 INFO L154 LiptonReduction]: Checked pairs total: 258 [2021-03-25 22:51:19,207 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 22:51:19,207 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 187 [2021-03-25 22:51:19,212 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 122 transitions, 684 flow [2021-03-25 22:51:19,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 122.8) internal successors, (614), 5 states have internal predecessors, (614), 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) [2021-03-25 22:51:19,213 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 22:51:19,213 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 22:51:19,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 22:51:19,213 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 22:51:19,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 22:51:19,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1343688988, now seen corresponding path program 1 times [2021-03-25 22:51:19,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 22:51:19,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077850788] [2021-03-25 22:51:19,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 22:51:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 22:51:19,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:19,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 22:51:19,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:19,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:19,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:19,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:19,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:19,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:19,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 22:51:19,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077850788] [2021-03-25 22:51:19,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 22:51:19,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 22:51:19,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134230650] [2021-03-25 22:51:19,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 22:51:19,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 22:51:19,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 22:51:19,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 22:51:19,278 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 159 [2021-03-25 22:51:19,278 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 122 transitions, 684 flow. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2021-03-25 22:51:19,278 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 22:51:19,278 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 159 [2021-03-25 22:51:19,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 22:51:19,568 INFO L129 PetriNetUnfolder]: 994/2989 cut-off events. [2021-03-25 22:51:19,568 INFO L130 PetriNetUnfolder]: For 1713/1751 co-relation queries the response was YES. [2021-03-25 22:51:19,580 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7032 conditions, 2989 events. 994/2989 cut-off events. For 1713/1751 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 28417 event pairs, 88 based on Foata normal form. 28/2874 useless extension candidates. Maximal degree in co-relation 6418. Up to 576 conditions per place. [2021-03-25 22:51:19,589 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 78 selfloop transitions, 49 changer transitions 0/164 dead transitions. [2021-03-25 22:51:19,589 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 164 transitions, 1145 flow [2021-03-25 22:51:19,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 22:51:19,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 22:51:19,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 899 transitions. [2021-03-25 22:51:19,592 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8077268643306379 [2021-03-25 22:51:19,592 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 899 transitions. [2021-03-25 22:51:19,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 899 transitions. [2021-03-25 22:51:19,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 22:51:19,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 899 transitions. [2021-03-25 22:51:19,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.42857142857142) internal successors, (899), 7 states have internal predecessors, (899), 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) [2021-03-25 22:51:19,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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) [2021-03-25 22:51:19,597 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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) [2021-03-25 22:51:19,597 INFO L185 Difference]: Start difference. First operand has 77 places, 122 transitions, 684 flow. Second operand 7 states and 899 transitions. [2021-03-25 22:51:19,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 164 transitions, 1145 flow [2021-03-25 22:51:19,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 164 transitions, 1124 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 22:51:19,609 INFO L241 Difference]: Finished difference. Result has 83 places, 133 transitions, 854 flow [2021-03-25 22:51:19,609 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=854, PETRI_PLACES=83, PETRI_TRANSITIONS=133} [2021-03-25 22:51:19,609 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 26 predicate places. [2021-03-25 22:51:19,609 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-25 22:51:19,609 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 133 transitions, 854 flow [2021-03-25 22:51:19,610 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 133 transitions, 854 flow [2021-03-25 22:51:19,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 133 transitions, 854 flow [2021-03-25 22:51:19,716 INFO L129 PetriNetUnfolder]: 560/1971 cut-off events. [2021-03-25 22:51:19,717 INFO L130 PetriNetUnfolder]: For 705/738 co-relation queries the response was YES. [2021-03-25 22:51:19,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3706 conditions, 1971 events. 560/1971 cut-off events. For 705/738 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 19189 event pairs, 1 based on Foata normal form. 8/1875 useless extension candidates. Maximal degree in co-relation 3523. Up to 378 conditions per place. [2021-03-25 22:51:19,737 INFO L142 LiptonReduction]: Number of co-enabled transitions 2726 [2021-03-25 22:51:19,810 INFO L154 LiptonReduction]: Checked pairs total: 261 [2021-03-25 22:51:19,810 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 22:51:19,810 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 201 [2021-03-25 22:51:19,812 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 133 transitions, 854 flow [2021-03-25 22:51:19,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2021-03-25 22:51:19,812 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 22:51:19,813 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 22:51:19,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 22:51:19,813 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 22:51:19,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 22:51:19,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1543456506, now seen corresponding path program 1 times [2021-03-25 22:51:19,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 22:51:19,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366528338] [2021-03-25 22:51:19,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 22:51:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 22:51:19,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:19,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 22:51:19,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:19,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:19,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:19,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:19,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:19,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:19,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 22:51:19,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366528338] [2021-03-25 22:51:19,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 22:51:19,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 22:51:19,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833250901] [2021-03-25 22:51:19,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 22:51:19,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 22:51:19,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 22:51:19,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 22:51:19,848 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 159 [2021-03-25 22:51:19,848 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 133 transitions, 854 flow. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2021-03-25 22:51:19,848 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 22:51:19,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 159 [2021-03-25 22:51:19,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 22:51:20,141 INFO L129 PetriNetUnfolder]: 993/3019 cut-off events. [2021-03-25 22:51:20,141 INFO L130 PetriNetUnfolder]: For 2241/2282 co-relation queries the response was YES. [2021-03-25 22:51:20,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7019 conditions, 3019 events. 993/3019 cut-off events. For 2241/2282 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 29288 event pairs, 61 based on Foata normal form. 41/2943 useless extension candidates. Maximal degree in co-relation 6405. Up to 533 conditions per place. [2021-03-25 22:51:20,164 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 87 selfloop transitions, 51 changer transitions 0/175 dead transitions. [2021-03-25 22:51:20,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 175 transitions, 1350 flow [2021-03-25 22:51:20,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 22:51:20,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 22:51:20,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 899 transitions. [2021-03-25 22:51:20,167 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8077268643306379 [2021-03-25 22:51:20,167 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 899 transitions. [2021-03-25 22:51:20,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 899 transitions. [2021-03-25 22:51:20,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 22:51:20,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 899 transitions. [2021-03-25 22:51:20,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.42857142857142) internal successors, (899), 7 states have internal predecessors, (899), 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) [2021-03-25 22:51:20,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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) [2021-03-25 22:51:20,173 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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) [2021-03-25 22:51:20,173 INFO L185 Difference]: Start difference. First operand has 83 places, 133 transitions, 854 flow. Second operand 7 states and 899 transitions. [2021-03-25 22:51:20,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 175 transitions, 1350 flow [2021-03-25 22:51:20,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 175 transitions, 1326 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 22:51:20,185 INFO L241 Difference]: Finished difference. Result has 90 places, 144 transitions, 1030 flow [2021-03-25 22:51:20,185 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=837, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1030, PETRI_PLACES=90, PETRI_TRANSITIONS=144} [2021-03-25 22:51:20,186 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 33 predicate places. [2021-03-25 22:51:20,186 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-25 22:51:20,186 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 144 transitions, 1030 flow [2021-03-25 22:51:20,186 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 144 transitions, 1030 flow [2021-03-25 22:51:20,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 144 transitions, 1030 flow [2021-03-25 22:51:20,291 INFO L129 PetriNetUnfolder]: 606/2101 cut-off events. [2021-03-25 22:51:20,291 INFO L130 PetriNetUnfolder]: For 1039/1087 co-relation queries the response was YES. [2021-03-25 22:51:20,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4078 conditions, 2101 events. 606/2101 cut-off events. For 1039/1087 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 20715 event pairs, 1 based on Foata normal form. 12/2008 useless extension candidates. Maximal degree in co-relation 3880. Up to 416 conditions per place. [2021-03-25 22:51:20,313 INFO L142 LiptonReduction]: Number of co-enabled transitions 2906 [2021-03-25 22:51:20,389 INFO L154 LiptonReduction]: Checked pairs total: 310 [2021-03-25 22:51:20,389 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 22:51:20,389 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 203 [2021-03-25 22:51:20,390 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 144 transitions, 1030 flow [2021-03-25 22:51:20,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2021-03-25 22:51:20,390 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 22:51:20,390 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 22:51:20,391 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 22:51:20,391 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 22:51:20,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 22:51:20,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1685509772, now seen corresponding path program 1 times [2021-03-25 22:51:20,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 22:51:20,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356558935] [2021-03-25 22:51:20,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 22:51:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 22:51:20,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:20,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:20,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:20,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:20,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:20,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:20,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:20,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:20,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:20,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 22:51:20,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 22:51:20,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 22:51:20,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 22:51:20,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356558935] [2021-03-25 22:51:20,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 22:51:20,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 22:51:20,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957546969] [2021-03-25 22:51:20,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 22:51:20,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 22:51:20,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 22:51:20,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 22:51:20,433 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 159 [2021-03-25 22:51:20,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 144 transitions, 1030 flow. Second operand has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 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) [2021-03-25 22:51:20,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 22:51:20,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 159 [2021-03-25 22:51:20,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 22:51:20,694 INFO L129 PetriNetUnfolder]: 973/3353 cut-off events. [2021-03-25 22:51:20,695 INFO L130 PetriNetUnfolder]: For 2063/2096 co-relation queries the response was YES. [2021-03-25 22:51:20,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6678 conditions, 3353 events. 973/3353 cut-off events. For 2063/2096 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 36334 event pairs, 15 based on Foata normal form. 65/3276 useless extension candidates. Maximal degree in co-relation 6295. Up to 722 conditions per place. [2021-03-25 22:51:20,714 INFO L132 encePairwiseOnDemand]: 151/159 looper letters, 43 selfloop transitions, 15 changer transitions 24/175 dead transitions. [2021-03-25 22:51:20,714 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 175 transitions, 1386 flow [2021-03-25 22:51:20,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 22:51:20,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 22:51:20,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1174 transitions. [2021-03-25 22:51:20,717 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8204053109713487 [2021-03-25 22:51:20,717 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1174 transitions. [2021-03-25 22:51:20,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1174 transitions. [2021-03-25 22:51:20,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 22:51:20,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1174 transitions. [2021-03-25 22:51:20,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 130.44444444444446) internal successors, (1174), 9 states have internal predecessors, (1174), 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) [2021-03-25 22:51:20,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 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) [2021-03-25 22:51:20,722 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 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) [2021-03-25 22:51:20,723 INFO L185 Difference]: Start difference. First operand has 90 places, 144 transitions, 1030 flow. Second operand 9 states and 1174 transitions. [2021-03-25 22:51:20,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 175 transitions, 1386 flow [2021-03-25 22:51:20,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 175 transitions, 1356 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 22:51:20,733 INFO L241 Difference]: Finished difference. Result has 99 places, 134 transitions, 960 flow [2021-03-25 22:51:20,733 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=929, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=960, PETRI_PLACES=99, PETRI_TRANSITIONS=134} [2021-03-25 22:51:20,733 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 42 predicate places. [2021-03-25 22:51:20,734 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-25 22:51:20,734 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 134 transitions, 960 flow [2021-03-25 22:51:20,734 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 134 transitions, 960 flow [2021-03-25 22:51:20,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 134 transitions, 960 flow [2021-03-25 22:51:20,853 INFO L129 PetriNetUnfolder]: 496/1823 cut-off events. [2021-03-25 22:51:20,854 INFO L130 PetriNetUnfolder]: For 1159/1191 co-relation queries the response was YES. [2021-03-25 22:51:20,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3755 conditions, 1823 events. 496/1823 cut-off events. For 1159/1191 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 17755 event pairs, 1 based on Foata normal form. 8/1731 useless extension candidates. Maximal degree in co-relation 3656. Up to 354 conditions per place. [2021-03-25 22:51:20,873 INFO L142 LiptonReduction]: Number of co-enabled transitions 2630 [2021-03-25 22:51:20,934 INFO L154 LiptonReduction]: Checked pairs total: 234 [2021-03-25 22:51:20,935 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 22:51:20,935 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 201 [2021-03-25 22:51:20,936 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 134 transitions, 960 flow [2021-03-25 22:51:20,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 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) [2021-03-25 22:51:20,936 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 22:51:20,936 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 22:51:20,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 22:51:20,937 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 22:51:20,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 22:51:20,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1499295848, now seen corresponding path program 2 times [2021-03-25 22:51:20,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 22:51:20,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549760350] [2021-03-25 22:51:20,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 22:51:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 22:51:20,948 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 22:51:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 22:51:20,971 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 22:51:20,999 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 22:51:20,999 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 22:51:20,999 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 22:51:21,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 10:51:21 BasicIcfg [2021-03-25 22:51:21,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 22:51:21,068 INFO L168 Benchmark]: Toolchain (without parser) took 11496.49 ms. Allocated memory was 255.9 MB in the beginning and 861.9 MB in the end (delta: 606.1 MB). Free memory was 234.9 MB in the beginning and 709.2 MB in the end (delta: -474.2 MB). Peak memory consumption was 132.4 MB. Max. memory is 16.0 GB. [2021-03-25 22:51:21,068 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 22:51:21,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.26 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 234.9 MB in the beginning and 329.7 MB in the end (delta: -94.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-25 22:51:21,068 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.34 ms. Allocated memory is still 367.0 MB. Free memory was 329.7 MB in the beginning and 327.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 22:51:21,069 INFO L168 Benchmark]: Boogie Preprocessor took 28.56 ms. Allocated memory is still 367.0 MB. Free memory was 327.6 MB in the beginning and 326.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 22:51:21,069 INFO L168 Benchmark]: RCFGBuilder took 421.54 ms. Allocated memory is still 367.0 MB. Free memory was 326.2 MB in the beginning and 296.2 MB in the end (delta: 30.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-03-25 22:51:21,073 INFO L168 Benchmark]: TraceAbstraction took 10478.18 ms. Allocated memory was 367.0 MB in the beginning and 861.9 MB in the end (delta: 494.9 MB). Free memory was 296.2 MB in the beginning and 709.2 MB in the end (delta: -413.0 MB). Peak memory consumption was 86.1 MB. Max. memory is 16.0 GB. [2021-03-25 22:51:21,074 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 504.26 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 234.9 MB in the beginning and 329.7 MB in the end (delta: -94.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 48.34 ms. Allocated memory is still 367.0 MB. Free memory was 329.7 MB in the beginning and 327.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.56 ms. Allocated memory is still 367.0 MB. Free memory was 327.6 MB in the beginning and 326.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 421.54 ms. Allocated memory is still 367.0 MB. Free memory was 326.2 MB in the beginning and 296.2 MB in the end (delta: 30.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 10478.18 ms. Allocated memory was 367.0 MB in the beginning and 861.9 MB in the end (delta: 494.9 MB). Free memory was 296.2 MB in the beginning and 709.2 MB in the end (delta: -413.0 MB). Peak memory consumption was 86.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1429.7ms, 92 PlacesBefore, 57 PlacesAfterwards, 90 TransitionsBefore, 55 TransitionsAfterwards, 2994 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, 4484 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2046, positive: 1960, positive conditional: 1960, positive unconditional: 0, negative: 86, negative conditional: 86, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1655, positive: 1620, positive conditional: 0, positive unconditional: 1620, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1655, positive: 1620, positive conditional: 0, positive unconditional: 1620, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1655, positive: 1602, positive conditional: 0, positive unconditional: 1602, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 53, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 178, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 133, negative conditional: 0, negative unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2046, positive: 340, positive conditional: 340, positive unconditional: 0, negative: 51, negative conditional: 51, negative unconditional: 0, unknown: 1655, unknown conditional: 1655, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 120, Positive conditional cache size: 120, Positive unconditional cache size: 0, Negative cache size: 19, Negative conditional cache size: 19, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1135.6ms, 61 PlacesBefore, 57 PlacesAfterwards, 78 TransitionsBefore, 74 TransitionsAfterwards, 2066 CoEnabledTransitionPairs, 4 FixpointIterations, 4 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 7440 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2848, positive: 2692, positive conditional: 2692, positive unconditional: 0, negative: 156, negative conditional: 156, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 233, positive: 219, positive conditional: 73, positive unconditional: 146, negative: 14, negative conditional: 9, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 233, positive: 219, positive conditional: 73, positive unconditional: 146, negative: 14, negative conditional: 9, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 233, positive: 211, positive conditional: 0, positive unconditional: 211, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 14, negative conditional: 9, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 73, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 44, negative conditional: 24, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2848, positive: 2473, positive conditional: 2473, positive unconditional: 0, negative: 142, negative conditional: 142, negative unconditional: 0, unknown: 233, unknown conditional: 233, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 372, Positive cache size: 339, Positive conditional cache size: 339, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1388.2ms, 63 PlacesBefore, 62 PlacesAfterwards, 90 TransitionsBefore, 89 TransitionsAfterwards, 2536 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1872 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 288, positive: 250, positive conditional: 250, positive unconditional: 0, negative: 38, negative conditional: 38, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29, positive: 26, positive conditional: 18, positive unconditional: 8, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 29, positive: 26, positive conditional: 18, positive unconditional: 8, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 29, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 288, positive: 224, positive conditional: 224, positive unconditional: 0, negative: 35, negative conditional: 35, negative unconditional: 0, unknown: 29, unknown conditional: 29, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 401, Positive cache size: 365, Positive conditional cache size: 365, Positive unconditional cache size: 0, Negative cache size: 36, Negative conditional cache size: 36, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1550.6ms, 74 PlacesBefore, 74 PlacesAfterwards, 164 TransitionsBefore, 164 TransitionsAfterwards, 4204 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 474 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 403, Positive cache size: 365, Positive conditional cache size: 365, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 186.6ms, 77 PlacesBefore, 77 PlacesAfterwards, 122 TransitionsBefore, 122 TransitionsAfterwards, 2546 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 258 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 404, Positive cache size: 365, Positive conditional cache size: 365, Positive unconditional cache size: 0, Negative cache size: 39, Negative conditional cache size: 39, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 200.2ms, 83 PlacesBefore, 83 PlacesAfterwards, 133 TransitionsBefore, 133 TransitionsAfterwards, 2726 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 261 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 409, Positive cache size: 368, Positive conditional cache size: 368, Positive unconditional cache size: 0, Negative cache size: 41, Negative conditional cache size: 41, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 202.6ms, 90 PlacesBefore, 90 PlacesAfterwards, 144 TransitionsBefore, 144 TransitionsAfterwards, 2906 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 310 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 412, Positive cache size: 369, Positive conditional cache size: 369, Positive unconditional cache size: 0, Negative cache size: 43, Negative conditional cache size: 43, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 200.8ms, 99 PlacesBefore, 95 PlacesAfterwards, 134 TransitionsBefore, 134 TransitionsAfterwards, 2630 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 234 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 7, positive conditional: 1, positive unconditional: 6, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 7, positive conditional: 1, positive unconditional: 6, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 3, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 45, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 421, Positive cache size: 376, Positive conditional cache size: 376, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - 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; [L748] 0 pthread_t t1, t2, t3, t4; [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; [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=1, w=0, x=0, y=0] [L730] 2 y = l VAL [r=1, w=0, x=0, y=0] [L733] 2 int ly = y; VAL [r=1, w=0, x=0, y=0] [L736] 2 int lx = x; VAL [r=1, w=0, x=0, y=0] [L738] COND FALSE 2 !(!(ly == lx)) [L740] 2 l = r-1 VAL [r=1, w=0, x=0, y=0] [L751] FCALL, FORK 0 pthread_create(&t3, 0, writer, 0) VAL [r=1, w=0, x=0, y=0] [L752] FCALL, FORK 0 pthread_create(&t4, 0, reader, 0) VAL [r=1, w=0, x=0, y=0] [L724] 4 int l; [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=2, w=0, x=0, y=0] [L730] 4 y = l VAL [r=2, w=0, x=0, y=0] [L733] 4 int ly = y; VAL [r=2, w=0, x=0, y=0] [L743] 2 r = l [L745] 2 return 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] 4 int lx = x; [L738] COND TRUE 4 !(ly == lx) [L738] 4 reach_error() VAL [r=0, w=1, x=3, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 10295.9ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3286.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1510.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 124 SDtfs, 222 SDslu, 84 SDs, 0 SdLazy, 534 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 292.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 163.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1030occurred in iteration=6, InterpolantAutomatonStates: 51, 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: TRACE_CHECK: 22.0ms SsaConstructionTime, 92.3ms SatisfiabilityAnalysisTime, 311.6ms InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...