/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-RepeatedVariableLbe.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 03:18:07,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 03:18:07,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 03:18:07,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 03:18:07,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 03:18:07,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 03:18:07,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 03:18:07,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 03:18:07,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 03:18:07,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 03:18:07,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 03:18:07,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 03:18:07,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 03:18:07,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 03:18:07,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 03:18:07,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 03:18:07,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 03:18:07,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 03:18:07,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 03:18:07,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 03:18:07,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 03:18:07,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 03:18:07,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 03:18:07,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 03:18:07,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 03:18:07,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 03:18:07,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 03:18:07,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 03:18:07,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 03:18:07,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 03:18:07,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 03:18:07,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 03:18:07,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 03:18:07,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 03:18:07,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 03:18:07,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 03:18:07,246 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-RepeatedVariableLbe.epf [2021-03-25 03:18:07,271 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 03:18:07,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 03:18:07,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 03:18:07,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 03:18:07,274 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 03:18:07,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 03:18:07,274 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 03:18:07,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 03:18:07,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 03:18:07,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 03:18:07,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 03:18:07,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 03:18:07,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 03:18:07,275 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 03:18:07,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 03:18:07,275 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 03:18:07,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 03:18:07,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 03:18:07,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 03:18:07,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 03:18:07,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 03:18:07,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 03:18:07,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 03:18:07,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 03:18:07,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 03:18:07,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 03:18:07,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 03:18:07,277 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 03:18:07,277 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 03:18:07,277 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 03:18:07,277 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 03:18:07,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 03:18:07,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 03:18:07,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 03:18:07,537 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 03:18:07,537 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 03:18:07,538 INFO L432 ainManager$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 03:18:07,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/880945f40/8f360283d34f418abe41c91da093bda0/FLAG924c2ac25 [2021-03-25 03:18:07,984 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 03:18:07,985 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-03-25 03:18:07,995 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/880945f40/8f360283d34f418abe41c91da093bda0/FLAG924c2ac25 [2021-03-25 03:18:08,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/880945f40/8f360283d34f418abe41c91da093bda0 [2021-03-25 03:18:08,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 03:18:08,351 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 03:18:08,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 03:18:08,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 03:18:08,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 03:18:08,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 03:18:08" (1/1) ... [2021-03-25 03:18:08,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e28f2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:18:08, skipping insertion in model container [2021-03-25 03:18:08,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 03:18:08" (1/1) ... [2021-03-25 03:18:08,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 03:18:08,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 03:18:08,478 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 03:18:08,600 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 03:18:08,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 03:18:08,612 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 03:18:08,628 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 03:18:08,638 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 03:18:08,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 03:18:08,680 INFO L208 MainTranslator]: Completed translation [2021-03-25 03:18:08,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:18:08 WrapperNode [2021-03-25 03:18:08,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 03:18:08,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 03:18:08,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 03:18:08,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 03:18:08,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:18:08" (1/1) ... [2021-03-25 03:18:08,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:18:08" (1/1) ... [2021-03-25 03:18:08,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 03:18:08,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 03:18:08,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 03:18:08,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 03:18:08,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:18:08" (1/1) ... [2021-03-25 03:18:08,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:18:08" (1/1) ... [2021-03-25 03:18:08,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:18:08" (1/1) ... [2021-03-25 03:18:08,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:18:08" (1/1) ... [2021-03-25 03:18:08,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:18:08" (1/1) ... [2021-03-25 03:18:08,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:18:08" (1/1) ... [2021-03-25 03:18:08,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:18:08" (1/1) ... [2021-03-25 03:18:08,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 03:18:08,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 03:18:08,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 03:18:08,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 03:18:08,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:18:08" (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 03:18:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-25 03:18:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 03:18:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 03:18:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-03-25 03:18:08,769 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-03-25 03:18:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 03:18:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 03:18:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 03:18:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 03:18:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 03:18:08,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 03:18:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-03-25 03:18:08,770 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-03-25 03:18:08,771 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 03:18:09,026 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 03:18:09,026 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-25 03:18:09,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 03:18:09 BoogieIcfgContainer [2021-03-25 03:18:09,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 03:18:09,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 03:18:09,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 03:18:09,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 03:18:09,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 03:18:08" (1/3) ... [2021-03-25 03:18:09,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdf119b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 03:18:09, skipping insertion in model container [2021-03-25 03:18:09,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:18:08" (2/3) ... [2021-03-25 03:18:09,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdf119b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 03:18:09, skipping insertion in model container [2021-03-25 03:18:09,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 03:18:09" (3/3) ... [2021-03-25 03:18:09,032 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2021-03-25 03:18:09,035 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 03:18:09,038 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 03:18:09,038 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 03:18:09,056 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,057 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,057 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,057 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,057 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,057 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,057 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,057 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,057 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,058 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,058 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,058 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,058 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,058 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,058 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,058 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,058 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,059 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,059 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,059 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,059 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,059 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,059 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,059 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,059 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,059 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,060 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,060 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,060 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,060 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,060 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,060 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,060 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,060 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,060 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,061 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,061 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,061 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,061 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,061 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,061 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,061 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,062 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,062 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,062 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,062 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,062 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,062 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,062 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,062 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,062 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,063 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,063 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,063 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,063 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,063 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,063 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,063 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,063 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,064 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,064 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,064 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,064 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,064 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,064 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,064 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,064 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,064 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,065 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,065 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,065 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,065 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,065 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,065 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,065 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,065 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,065 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,066 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,066 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,066 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,066 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,066 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,066 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,066 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,066 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,066 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,066 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,067 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,067 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,067 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,067 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,067 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,067 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,067 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,067 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,068 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,068 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,068 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,068 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,068 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,068 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,068 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,068 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,068 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,069 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,069 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,069 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,069 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,070 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,070 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,071 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,071 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,071 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,071 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,072 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,072 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,073 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,073 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,073 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,073 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,073 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,073 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,073 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,074 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,074 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,074 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,074 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,074 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,075 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,075 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,076 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,076 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,076 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,076 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,076 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,076 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,076 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,076 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:18:09,086 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-03-25 03:18:09,097 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 03:18:09,109 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 03:18:09,109 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 03:18:09,109 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 03:18:09,109 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 03:18:09,109 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 03:18:09,109 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 03:18:09,109 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 03:18:09,109 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 03:18:09,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 110 transitions, 288 flow [2021-03-25 03:18:09,152 INFO L129 PetriNetUnfolder]: 19/144 cut-off events. [2021-03-25 03:18:09,152 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-25 03:18:09,158 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 03:18:09,158 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 110 transitions, 288 flow [2021-03-25 03:18:09,161 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 90 transitions, 228 flow [2021-03-25 03:18:09,162 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:18:09,169 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 90 transitions, 228 flow [2021-03-25 03:18:09,172 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 90 transitions, 228 flow [2021-03-25 03:18:09,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 90 transitions, 228 flow [2021-03-25 03:18:09,216 INFO L129 PetriNetUnfolder]: 16/128 cut-off events. [2021-03-25 03:18:09,216 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-03-25 03:18:09,217 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 03:18:09,220 INFO L142 LiptonReduction]: Number of co-enabled transitions 2994 [2021-03-25 03:18:10,216 INFO L154 LiptonReduction]: Checked pairs total: 4515 [2021-03-25 03:18:10,217 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-25 03:18:10,218 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1057 [2021-03-25 03:18:10,224 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-25 03:18:10,224 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 03:18:10,224 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:18:10,225 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 03:18:10,225 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 03:18:10,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:18:10,228 INFO L82 PathProgramCache]: Analyzing trace with hash -434817972, now seen corresponding path program 1 times [2021-03-25 03:18:10,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:18:10,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862738484] [2021-03-25 03:18:10,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:18:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:18:10,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:10,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:18:10,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:10,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:10,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:10,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:10,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:10,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:10,381 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 03:18:10,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862738484] [2021-03-25 03:18:10,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:18:10,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 03:18:10,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659779087] [2021-03-25 03:18:10,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 03:18:10,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:18:10,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 03:18:10,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 03:18:10,398 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 154 [2021-03-25 03:18:10,402 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 03:18:10,402 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:18:10,402 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 154 [2021-03-25 03:18:10,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:18:10,716 INFO L129 PetriNetUnfolder]: 1159/2475 cut-off events. [2021-03-25 03:18:10,716 INFO L130 PetriNetUnfolder]: For 498/498 co-relation queries the response was YES. [2021-03-25 03:18:10,724 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 03:18:10,738 INFO L132 encePairwiseOnDemand]: 142/154 looper letters, 58 selfloop transitions, 26 changer transitions 0/118 dead transitions. [2021-03-25 03:18:10,738 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 118 transitions, 455 flow [2021-03-25 03:18:10,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 03:18:10,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 03:18:10,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1168 transitions. [2021-03-25 03:18:10,751 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8427128427128427 [2021-03-25 03:18:10,751 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1168 transitions. [2021-03-25 03:18:10,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1168 transitions. [2021-03-25 03:18:10,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:18:10,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1168 transitions. [2021-03-25 03:18:10,761 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 03:18:10,767 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 03:18:10,768 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 03:18:10,769 INFO L185 Difference]: Start difference. First operand has 57 places, 55 transitions, 158 flow. Second operand 9 states and 1168 transitions. [2021-03-25 03:18:10,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 118 transitions, 455 flow [2021-03-25 03:18:10,780 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 03:18:10,782 INFO L241 Difference]: Finished difference. Result has 61 places, 78 transitions, 267 flow [2021-03-25 03:18:10,783 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 03:18:10,784 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2021-03-25 03:18:10,784 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:18:10,784 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 78 transitions, 267 flow [2021-03-25 03:18:10,785 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 78 transitions, 267 flow [2021-03-25 03:18:10,785 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 78 transitions, 267 flow [2021-03-25 03:18:10,817 INFO L129 PetriNetUnfolder]: 178/662 cut-off events. [2021-03-25 03:18:10,818 INFO L130 PetriNetUnfolder]: For 24/27 co-relation queries the response was YES. [2021-03-25 03:18:10,821 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 03:18:10,827 INFO L142 LiptonReduction]: Number of co-enabled transitions 2066 [2021-03-25 03:18:11,688 INFO L154 LiptonReduction]: Checked pairs total: 7440 [2021-03-25 03:18:11,688 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 03:18:11,688 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 904 [2021-03-25 03:18:11,689 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 74 transitions, 259 flow [2021-03-25 03:18:11,689 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 03:18:11,689 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:18:11,689 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 03:18:11,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 03:18:11,689 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 03:18:11,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:18:11,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1245912937, now seen corresponding path program 1 times [2021-03-25 03:18:11,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:18:11,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314037990] [2021-03-25 03:18:11,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:18:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:18:11,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:11,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:18:11,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:11,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:11,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:11,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:11,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:11,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:18:11,769 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 03:18:11,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314037990] [2021-03-25 03:18:11,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:18:11,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 03:18:11,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127529155] [2021-03-25 03:18:11,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 03:18:11,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:18:11,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 03:18:11,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 03:18:11,774 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 158 [2021-03-25 03:18:11,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 74 transitions, 259 flow. Second operand has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 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 03:18:11,774 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:18:11,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 158 [2021-03-25 03:18:11,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:18:12,005 INFO L129 PetriNetUnfolder]: 886/2936 cut-off events. [2021-03-25 03:18:12,006 INFO L130 PetriNetUnfolder]: For 264/332 co-relation queries the response was YES. [2021-03-25 03:18:12,014 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4772 conditions, 2936 events. 886/2936 cut-off events. For 264/332 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 30210 event pairs, 56 based on Foata normal form. 125/2803 useless extension candidates. Maximal degree in co-relation 4223. Up to 396 conditions per place. [2021-03-25 03:18:12,023 INFO L132 encePairwiseOnDemand]: 151/158 looper letters, 23 selfloop transitions, 9 changer transitions 0/94 dead transitions. [2021-03-25 03:18:12,023 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 94 transitions, 385 flow [2021-03-25 03:18:12,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 03:18:12,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 03:18:12,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 545 transitions. [2021-03-25 03:18:12,025 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8623417721518988 [2021-03-25 03:18:12,025 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 545 transitions. [2021-03-25 03:18:12,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 545 transitions. [2021-03-25 03:18:12,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:18:12,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 545 transitions. [2021-03-25 03:18:12,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 136.25) internal successors, (545), 4 states have internal predecessors, (545), 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 03:18:12,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 158.0) internal successors, (790), 5 states have internal predecessors, (790), 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 03:18:12,028 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 158.0) internal successors, (790), 5 states have internal predecessors, (790), 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 03:18:12,028 INFO L185 Difference]: Start difference. First operand has 57 places, 74 transitions, 259 flow. Second operand 4 states and 545 transitions. [2021-03-25 03:18:12,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 94 transitions, 385 flow [2021-03-25 03:18:12,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 94 transitions, 385 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 03:18:12,033 INFO L241 Difference]: Finished difference. Result has 63 places, 82 transitions, 327 flow [2021-03-25 03:18:12,034 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=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=327, PETRI_PLACES=63, PETRI_TRANSITIONS=82} [2021-03-25 03:18:12,034 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2021-03-25 03:18:12,034 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:18:12,034 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 82 transitions, 327 flow [2021-03-25 03:18:12,035 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 82 transitions, 327 flow [2021-03-25 03:18:12,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 82 transitions, 327 flow [2021-03-25 03:18:12,180 INFO L129 PetriNetUnfolder]: 661/2430 cut-off events. [2021-03-25 03:18:12,181 INFO L130 PetriNetUnfolder]: For 329/331 co-relation queries the response was YES. [2021-03-25 03:18:12,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3954 conditions, 2430 events. 661/2430 cut-off events. For 329/331 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 24985 event pairs, 32 based on Foata normal form. 0/2261 useless extension candidates. Maximal degree in co-relation 3240. Up to 372 conditions per place. [2021-03-25 03:18:12,205 INFO L142 LiptonReduction]: Number of co-enabled transitions 2448 [2021-03-25 03:18:12,771 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2021-03-25 03:18:12,874 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-03-25 03:18:13,127 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2021-03-25 03:18:13,234 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-03-25 03:18:13,592 INFO L154 LiptonReduction]: Checked pairs total: 2394 [2021-03-25 03:18:13,592 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 03:18:13,592 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1558 [2021-03-25 03:18:13,593 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 81 transitions, 325 flow [2021-03-25 03:18:13,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 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 03:18:13,593 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:18:13,593 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 03:18:13,593 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 03:18:13,593 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 03:18:13,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:18:13,594 INFO L82 PathProgramCache]: Analyzing trace with hash 213810246, now seen corresponding path program 1 times [2021-03-25 03:18:13,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:18:13,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130589080] [2021-03-25 03:18:13,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:18:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:18:13,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:13,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:18:13,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:13,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:13,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:13,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:18:13,624 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 03:18:13,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130589080] [2021-03-25 03:18:13,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:18:13,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 03:18:13,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431919015] [2021-03-25 03:18:13,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 03:18:13,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:18:13,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 03:18:13,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 03:18:13,626 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 159 [2021-03-25 03:18:13,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 81 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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 03:18:13,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:18:13,626 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 159 [2021-03-25 03:18:13,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:18:13,717 INFO L129 PetriNetUnfolder]: 371/1393 cut-off events. [2021-03-25 03:18:13,717 INFO L130 PetriNetUnfolder]: For 409/464 co-relation queries the response was YES. [2021-03-25 03:18:13,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2209 conditions, 1393 events. 371/1393 cut-off events. For 409/464 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 12692 event pairs, 2 based on Foata normal form. 54/1339 useless extension candidates. Maximal degree in co-relation 2003. Up to 262 conditions per place. [2021-03-25 03:18:13,725 INFO L132 encePairwiseOnDemand]: 153/159 looper letters, 5 selfloop transitions, 6 changer transitions 0/81 dead transitions. [2021-03-25 03:18:13,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 81 transitions, 347 flow [2021-03-25 03:18:13,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 03:18:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 03:18:13,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2021-03-25 03:18:13,726 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.859538784067086 [2021-03-25 03:18:13,726 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 410 transitions. [2021-03-25 03:18:13,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 410 transitions. [2021-03-25 03:18:13,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:18:13,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 410 transitions. [2021-03-25 03:18:13,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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 03:18:13,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 03:18:13,728 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 03:18:13,728 INFO L185 Difference]: Start difference. First operand has 62 places, 81 transitions, 325 flow. Second operand 3 states and 410 transitions. [2021-03-25 03:18:13,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 81 transitions, 347 flow [2021-03-25 03:18:13,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 81 transitions, 347 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 03:18:13,734 INFO L241 Difference]: Finished difference. Result has 65 places, 81 transitions, 347 flow [2021-03-25 03:18:13,734 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=347, PETRI_PLACES=65, PETRI_TRANSITIONS=81} [2021-03-25 03:18:13,734 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2021-03-25 03:18:13,734 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:18:13,735 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 81 transitions, 347 flow [2021-03-25 03:18:13,736 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 81 transitions, 347 flow [2021-03-25 03:18:13,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 81 transitions, 347 flow [2021-03-25 03:18:13,807 INFO L129 PetriNetUnfolder]: 376/1371 cut-off events. [2021-03-25 03:18:13,807 INFO L130 PetriNetUnfolder]: For 502/525 co-relation queries the response was YES. [2021-03-25 03:18:13,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2221 conditions, 1371 events. 376/1371 cut-off events. For 502/525 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 12534 event pairs, 3 based on Foata normal form. 0/1266 useless extension candidates. Maximal degree in co-relation 1842. Up to 264 conditions per place. [2021-03-25 03:18:13,821 INFO L142 LiptonReduction]: Number of co-enabled transitions 1938 [2021-03-25 03:18:14,054 INFO L154 LiptonReduction]: Checked pairs total: 1830 [2021-03-25 03:18:14,054 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 03:18:14,054 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 320 [2021-03-25 03:18:14,058 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 81 transitions, 368 flow [2021-03-25 03:18:14,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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 03:18:14,058 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:18:14,059 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 03:18:14,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 03:18:14,059 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 03:18:14,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:18:14,059 INFO L82 PathProgramCache]: Analyzing trace with hash 215437246, now seen corresponding path program 1 times [2021-03-25 03:18:14,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:18:14,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95627622] [2021-03-25 03:18:14,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:18:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:18:14,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:14,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:18:14,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:14,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:14,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:14,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:14,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:14,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:14,107 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 03:18:14,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95627622] [2021-03-25 03:18:14,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:18:14,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 03:18:14,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479343394] [2021-03-25 03:18:14,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 03:18:14,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:18:14,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 03:18:14,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 03:18:14,110 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 166 [2021-03-25 03:18:14,110 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 81 transitions, 368 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 03:18:14,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:18:14,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 166 [2021-03-25 03:18:14,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:18:14,428 INFO L129 PetriNetUnfolder]: 1003/2946 cut-off events. [2021-03-25 03:18:14,428 INFO L130 PetriNetUnfolder]: For 1767/1838 co-relation queries the response was YES. [2021-03-25 03:18:14,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6146 conditions, 2946 events. 1003/2946 cut-off events. For 1767/1838 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 27982 event pairs, 91 based on Foata normal form. 4/2766 useless extension candidates. Maximal degree in co-relation 5306. Up to 528 conditions per place. [2021-03-25 03:18:14,448 INFO L132 encePairwiseOnDemand]: 149/166 looper letters, 72 selfloop transitions, 47 changer transitions 0/156 dead transitions. [2021-03-25 03:18:14,449 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 156 transitions, 943 flow [2021-03-25 03:18:14,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 03:18:14,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 03:18:14,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1176 transitions. [2021-03-25 03:18:14,451 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7871485943775101 [2021-03-25 03:18:14,451 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1176 transitions. [2021-03-25 03:18:14,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1176 transitions. [2021-03-25 03:18:14,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:18:14,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1176 transitions. [2021-03-25 03:18:14,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 130.66666666666666) internal successors, (1176), 9 states have internal predecessors, (1176), 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 03:18:14,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 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 03:18:14,456 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 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 03:18:14,456 INFO L185 Difference]: Start difference. First operand has 65 places, 81 transitions, 368 flow. Second operand 9 states and 1176 transitions. [2021-03-25 03:18:14,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 156 transitions, 943 flow [2021-03-25 03:18:14,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 156 transitions, 903 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 03:18:14,465 INFO L241 Difference]: Finished difference. Result has 77 places, 118 transitions, 694 flow [2021-03-25 03:18:14,465 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=694, PETRI_PLACES=77, PETRI_TRANSITIONS=118} [2021-03-25 03:18:14,466 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 20 predicate places. [2021-03-25 03:18:14,466 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:18:14,466 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 118 transitions, 694 flow [2021-03-25 03:18:14,466 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 118 transitions, 694 flow [2021-03-25 03:18:14,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 118 transitions, 694 flow [2021-03-25 03:18:14,565 INFO L129 PetriNetUnfolder]: 569/1947 cut-off events. [2021-03-25 03:18:14,565 INFO L130 PetriNetUnfolder]: For 779/825 co-relation queries the response was YES. [2021-03-25 03:18:14,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3593 conditions, 1947 events. 569/1947 cut-off events. For 779/825 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 18706 event pairs, 2 based on Foata normal form. 7/1862 useless extension candidates. Maximal degree in co-relation 3386. Up to 374 conditions per place. [2021-03-25 03:18:14,587 INFO L142 LiptonReduction]: Number of co-enabled transitions 2534 [2021-03-25 03:18:15,016 INFO L154 LiptonReduction]: Checked pairs total: 1140 [2021-03-25 03:18:15,017 INFO L156 LiptonReduction]: Total number of compositions: 16 [2021-03-25 03:18:15,017 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 551 [2021-03-25 03:18:15,018 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 118 transitions, 710 flow [2021-03-25 03:18:15,019 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 03:18:15,019 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:18:15,019 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 03:18:15,019 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 03:18:15,020 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 03:18:15,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:18:15,020 INFO L82 PathProgramCache]: Analyzing trace with hash -483719466, now seen corresponding path program 1 times [2021-03-25 03:18:15,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:18:15,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812363542] [2021-03-25 03:18:15,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:18:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:18:15,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:15,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:18:15,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:15,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:15,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:15,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:15,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:15,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:15,085 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 03:18:15,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812363542] [2021-03-25 03:18:15,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:18:15,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 03:18:15,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540286401] [2021-03-25 03:18:15,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 03:18:15,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:18:15,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 03:18:15,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 03:18:15,087 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 182 [2021-03-25 03:18:15,088 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 118 transitions, 710 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 03:18:15,088 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:18:15,088 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 182 [2021-03-25 03:18:15,088 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:18:15,412 INFO L129 PetriNetUnfolder]: 1040/3043 cut-off events. [2021-03-25 03:18:15,412 INFO L130 PetriNetUnfolder]: For 2336/2380 co-relation queries the response was YES. [2021-03-25 03:18:15,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7276 conditions, 3043 events. 1040/3043 cut-off events. For 2336/2380 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 28892 event pairs, 120 based on Foata normal form. 30/2928 useless extension candidates. Maximal degree in co-relation 6702. Up to 655 conditions per place. [2021-03-25 03:18:15,438 INFO L132 encePairwiseOnDemand]: 159/182 looper letters, 76 selfloop transitions, 51 changer transitions 0/159 dead transitions. [2021-03-25 03:18:15,438 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 159 transitions, 1170 flow [2021-03-25 03:18:15,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 03:18:15,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 03:18:15,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 927 transitions. [2021-03-25 03:18:15,440 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7276295133437991 [2021-03-25 03:18:15,440 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 927 transitions. [2021-03-25 03:18:15,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 927 transitions. [2021-03-25 03:18:15,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:18:15,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 927 transitions. [2021-03-25 03:18:15,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 132.42857142857142) internal successors, (927), 7 states have internal predecessors, (927), 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 03:18:15,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 182.0) internal successors, (1456), 8 states have internal predecessors, (1456), 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 03:18:15,444 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 182.0) internal successors, (1456), 8 states have internal predecessors, (1456), 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 03:18:15,444 INFO L185 Difference]: Start difference. First operand has 77 places, 118 transitions, 710 flow. Second operand 7 states and 927 transitions. [2021-03-25 03:18:15,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 159 transitions, 1170 flow [2021-03-25 03:18:15,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 159 transitions, 1168 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-25 03:18:15,454 INFO L241 Difference]: Finished difference. Result has 85 places, 129 transitions, 909 flow [2021-03-25 03:18:15,454 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=909, PETRI_PLACES=85, PETRI_TRANSITIONS=129} [2021-03-25 03:18:15,454 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 28 predicate places. [2021-03-25 03:18:15,454 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:18:15,454 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 129 transitions, 909 flow [2021-03-25 03:18:15,455 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 129 transitions, 909 flow [2021-03-25 03:18:15,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 129 transitions, 909 flow [2021-03-25 03:18:15,549 INFO L129 PetriNetUnfolder]: 569/1943 cut-off events. [2021-03-25 03:18:15,549 INFO L130 PetriNetUnfolder]: For 1156/1214 co-relation queries the response was YES. [2021-03-25 03:18:15,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3933 conditions, 1943 events. 569/1943 cut-off events. For 1156/1214 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 18540 event pairs, 1 based on Foata normal form. 11/1855 useless extension candidates. Maximal degree in co-relation 3731. Up to 366 conditions per place. [2021-03-25 03:18:15,570 INFO L142 LiptonReduction]: Number of co-enabled transitions 2714 [2021-03-25 03:18:15,752 INFO L154 LiptonReduction]: Checked pairs total: 723 [2021-03-25 03:18:15,752 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 03:18:15,753 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 299 [2021-03-25 03:18:15,753 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 129 transitions, 912 flow [2021-03-25 03:18:15,753 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 03:18:15,753 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:18:15,753 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 03:18:15,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 03:18:15,753 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 03:18:15,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:18:15,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1543456506, now seen corresponding path program 1 times [2021-03-25 03:18:15,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:18:15,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238219503] [2021-03-25 03:18:15,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:18:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:18:15,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:15,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:18:15,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:15,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:15,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:15,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:15,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:15,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:15,774 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 03:18:15,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238219503] [2021-03-25 03:18:15,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:18:15,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 03:18:15,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503078877] [2021-03-25 03:18:15,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 03:18:15,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:18:15,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 03:18:15,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 03:18:15,776 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 185 [2021-03-25 03:18:15,776 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 129 transitions, 912 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 03:18:15,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:18:15,777 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 185 [2021-03-25 03:18:15,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:18:16,066 INFO L129 PetriNetUnfolder]: 1045/3107 cut-off events. [2021-03-25 03:18:16,066 INFO L130 PetriNetUnfolder]: For 3133/3195 co-relation queries the response was YES. [2021-03-25 03:18:16,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7539 conditions, 3107 events. 1045/3107 cut-off events. For 3133/3195 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 30059 event pairs, 66 based on Foata normal form. 51/3031 useless extension candidates. Maximal degree in co-relation 6942. Up to 603 conditions per place. [2021-03-25 03:18:16,085 INFO L132 encePairwiseOnDemand]: 160/185 looper letters, 85 selfloop transitions, 53 changer transitions 0/170 dead transitions. [2021-03-25 03:18:16,085 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 170 transitions, 1409 flow [2021-03-25 03:18:16,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 03:18:16,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 03:18:16,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 926 transitions. [2021-03-25 03:18:16,087 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.715057915057915 [2021-03-25 03:18:16,087 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 926 transitions. [2021-03-25 03:18:16,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 926 transitions. [2021-03-25 03:18:16,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:18:16,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 926 transitions. [2021-03-25 03:18:16,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 132.28571428571428) internal successors, (926), 7 states have internal predecessors, (926), 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 03:18:16,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 185.0) internal successors, (1480), 8 states have internal predecessors, (1480), 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 03:18:16,091 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 185.0) internal successors, (1480), 8 states have internal predecessors, (1480), 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 03:18:16,091 INFO L185 Difference]: Start difference. First operand has 85 places, 129 transitions, 912 flow. Second operand 7 states and 926 transitions. [2021-03-25 03:18:16,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 170 transitions, 1409 flow [2021-03-25 03:18:16,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 170 transitions, 1385 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 03:18:16,103 INFO L241 Difference]: Finished difference. Result has 92 places, 140 transitions, 1097 flow [2021-03-25 03:18:16,103 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1097, PETRI_PLACES=92, PETRI_TRANSITIONS=140} [2021-03-25 03:18:16,103 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 35 predicate places. [2021-03-25 03:18:16,103 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:18:16,103 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 140 transitions, 1097 flow [2021-03-25 03:18:16,103 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 140 transitions, 1097 flow [2021-03-25 03:18:16,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 140 transitions, 1097 flow [2021-03-25 03:18:16,198 INFO L129 PetriNetUnfolder]: 618/2070 cut-off events. [2021-03-25 03:18:16,199 INFO L130 PetriNetUnfolder]: For 1483/1545 co-relation queries the response was YES. [2021-03-25 03:18:16,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4359 conditions, 2070 events. 618/2070 cut-off events. For 1483/1545 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 19927 event pairs, 0 based on Foata normal form. 12/1977 useless extension candidates. Maximal degree in co-relation 4130. Up to 400 conditions per place. [2021-03-25 03:18:16,220 INFO L142 LiptonReduction]: Number of co-enabled transitions 2894 [2021-03-25 03:18:16,467 INFO L154 LiptonReduction]: Checked pairs total: 850 [2021-03-25 03:18:16,468 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-25 03:18:16,468 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 365 [2021-03-25 03:18:16,468 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 140 transitions, 1103 flow [2021-03-25 03:18:16,468 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 03:18:16,468 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:18:16,469 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 03:18:16,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 03:18:16,469 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 03:18:16,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:18:16,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1685507199, now seen corresponding path program 1 times [2021-03-25 03:18:16,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:18:16,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523004089] [2021-03-25 03:18:16,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:18:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:18:16,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:16,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:16,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:16,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:16,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:16,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:16,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:16,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:16,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:16,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:18:16,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:18:16,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:18:16,500 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 03:18:16,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523004089] [2021-03-25 03:18:16,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:18:16,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 03:18:16,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270525070] [2021-03-25 03:18:16,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 03:18:16,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:18:16,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 03:18:16,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 03:18:16,502 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 191 [2021-03-25 03:18:16,502 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 140 transitions, 1103 flow. Second operand has 6 states, 6 states have (on average 158.5) internal successors, (951), 6 states have internal predecessors, (951), 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 03:18:16,503 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:18:16,503 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 191 [2021-03-25 03:18:16,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:18:16,757 INFO L129 PetriNetUnfolder]: 1001/3341 cut-off events. [2021-03-25 03:18:16,757 INFO L130 PetriNetUnfolder]: For 3253/3328 co-relation queries the response was YES. [2021-03-25 03:18:16,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7026 conditions, 3341 events. 1001/3341 cut-off events. For 3253/3328 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 35719 event pairs, 9 based on Foata normal form. 69/3266 useless extension candidates. Maximal degree in co-relation 6694. Up to 712 conditions per place. [2021-03-25 03:18:16,779 INFO L132 encePairwiseOnDemand]: 183/191 looper letters, 44 selfloop transitions, 13 changer transitions 22/174 dead transitions. [2021-03-25 03:18:16,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 174 transitions, 1478 flow [2021-03-25 03:18:16,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 03:18:16,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 03:18:16,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1462 transitions. [2021-03-25 03:18:16,781 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8504944735311227 [2021-03-25 03:18:16,781 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1462 transitions. [2021-03-25 03:18:16,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1462 transitions. [2021-03-25 03:18:16,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:18:16,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1462 transitions. [2021-03-25 03:18:16,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 162.44444444444446) internal successors, (1462), 9 states have internal predecessors, (1462), 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 03:18:16,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 191.0) internal successors, (1910), 10 states have internal predecessors, (1910), 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 03:18:16,786 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 191.0) internal successors, (1910), 10 states have internal predecessors, (1910), 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 03:18:16,786 INFO L185 Difference]: Start difference. First operand has 92 places, 140 transitions, 1103 flow. Second operand 9 states and 1462 transitions. [2021-03-25 03:18:16,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 174 transitions, 1478 flow [2021-03-25 03:18:16,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 174 transitions, 1440 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-25 03:18:16,796 INFO L241 Difference]: Finished difference. Result has 103 places, 135 transitions, 1051 flow [2021-03-25 03:18:16,796 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1051, PETRI_PLACES=103, PETRI_TRANSITIONS=135} [2021-03-25 03:18:16,796 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 46 predicate places. [2021-03-25 03:18:16,796 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:18:16,797 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 135 transitions, 1051 flow [2021-03-25 03:18:16,797 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 135 transitions, 1051 flow [2021-03-25 03:18:16,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 135 transitions, 1051 flow [2021-03-25 03:18:16,883 INFO L129 PetriNetUnfolder]: 550/1861 cut-off events. [2021-03-25 03:18:16,883 INFO L130 PetriNetUnfolder]: For 1639/1691 co-relation queries the response was YES. [2021-03-25 03:18:16,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4070 conditions, 1861 events. 550/1861 cut-off events. For 1639/1691 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 17689 event pairs, 1 based on Foata normal form. 9/1759 useless extension candidates. Maximal degree in co-relation 3976. Up to 368 conditions per place. [2021-03-25 03:18:16,904 INFO L142 LiptonReduction]: Number of co-enabled transitions 2692 [2021-03-25 03:18:17,021 INFO L154 LiptonReduction]: Checked pairs total: 601 [2021-03-25 03:18:17,021 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 03:18:17,021 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 225 [2021-03-25 03:18:17,022 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 135 transitions, 1052 flow [2021-03-25 03:18:17,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 158.5) internal successors, (951), 6 states have internal predecessors, (951), 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 03:18:17,022 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:18:17,022 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 03:18:17,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 03:18:17,022 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 03:18:17,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:18:17,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1499293275, now seen corresponding path program 2 times [2021-03-25 03:18:17,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:18:17,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011030522] [2021-03-25 03:18:17,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:18:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 03:18:17,032 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 03:18:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 03:18:17,038 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 03:18:17,052 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 03:18:17,052 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 03:18:17,052 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 03:18:17,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 03:18:17 BasicIcfg [2021-03-25 03:18:17,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 03:18:17,080 INFO L168 Benchmark]: Toolchain (without parser) took 8729.70 ms. Allocated memory was 371.2 MB in the beginning and 536.9 MB in the end (delta: 165.7 MB). Free memory was 335.0 MB in the beginning and 270.8 MB in the end (delta: 64.2 MB). Peak memory consumption was 231.2 MB. Max. memory is 16.0 GB. [2021-03-25 03:18:17,081 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 371.2 MB. Free memory was 352.8 MB in the beginning and 352.7 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 03:18:17,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.60 ms. Allocated memory is still 371.2 MB. Free memory was 334.8 MB in the beginning and 333.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.0 GB. [2021-03-25 03:18:17,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.29 ms. Allocated memory is still 371.2 MB. Free memory was 333.1 MB in the beginning and 331.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 03:18:17,081 INFO L168 Benchmark]: Boogie Preprocessor took 12.31 ms. Allocated memory is still 371.2 MB. Free memory was 331.0 MB in the beginning and 329.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 03:18:17,081 INFO L168 Benchmark]: RCFGBuilder took 309.72 ms. Allocated memory is still 371.2 MB. Free memory was 329.9 MB in the beginning and 297.4 MB in the end (delta: 32.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-03-25 03:18:17,082 INFO L168 Benchmark]: TraceAbstraction took 8051.20 ms. Allocated memory was 371.2 MB in the beginning and 536.9 MB in the end (delta: 165.7 MB). Free memory was 297.4 MB in the beginning and 270.8 MB in the end (delta: 26.6 MB). Peak memory consumption was 194.4 MB. Max. memory is 16.0 GB. [2021-03-25 03:18:17,083 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 371.2 MB. Free memory was 352.8 MB in the beginning and 352.7 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 328.60 ms. Allocated memory is still 371.2 MB. Free memory was 334.8 MB in the beginning and 333.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.29 ms. Allocated memory is still 371.2 MB. Free memory was 333.1 MB in the beginning and 331.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.31 ms. Allocated memory is still 371.2 MB. Free memory was 331.0 MB in the beginning and 329.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 309.72 ms. Allocated memory is still 371.2 MB. Free memory was 329.9 MB in the beginning and 297.4 MB in the end (delta: 32.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 8051.20 ms. Allocated memory was 371.2 MB in the beginning and 536.9 MB in the end (delta: 165.7 MB). Free memory was 297.4 MB in the beginning and 270.8 MB in the end (delta: 26.6 MB). Peak memory consumption was 194.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1044.2ms, 92 PlacesBefore, 57 PlacesAfterwards, 90 TransitionsBefore, 55 TransitionsAfterwards, 2994 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, 4515 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1932, positive: 1845, positive conditional: 0, positive unconditional: 1845, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1253, positive: 1229, positive conditional: 0, positive unconditional: 1229, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1253, positive: 1229, positive conditional: 0, positive unconditional: 1229, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1932, positive: 616, positive conditional: 0, positive unconditional: 616, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 1253, unknown conditional: 0, unknown unconditional: 1253] , Statistics on independence cache: Total cache size (in pairs): 122, Positive cache size: 110, Positive conditional cache size: 0, Positive unconditional cache size: 110, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 903.2ms, 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: 1167, positive: 1011, positive conditional: 0, positive unconditional: 1011, negative: 156, negative conditional: 0, negative unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 52, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 52, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1167, positive: 966, positive conditional: 0, positive unconditional: 966, negative: 149, negative conditional: 0, negative unconditional: 149, unknown: 52, unknown conditional: 0, unknown unconditional: 52] , Statistics on independence cache: Total cache size (in pairs): 174, Positive cache size: 155, Positive conditional cache size: 0, Positive unconditional cache size: 155, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1557.1ms, 63 PlacesBefore, 62 PlacesAfterwards, 82 TransitionsBefore, 81 TransitionsAfterwards, 2448 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2394 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 506, positive: 456, positive conditional: 0, positive unconditional: 456, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 506, positive: 442, positive conditional: 0, positive unconditional: 442, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 15, unknown conditional: 0, unknown unconditional: 15] , Statistics on independence cache: Total cache size (in pairs): 189, Positive cache size: 169, Positive conditional cache size: 0, Positive unconditional cache size: 169, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 318.1ms, 65 PlacesBefore, 65 PlacesAfterwards, 81 TransitionsBefore, 81 TransitionsAfterwards, 1938 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 1830 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 770, positive: 726, positive conditional: 0, positive unconditional: 726, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 70, positive: 65, positive conditional: 0, positive unconditional: 65, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 70, positive: 65, positive conditional: 0, positive unconditional: 65, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 770, positive: 661, positive conditional: 0, positive unconditional: 661, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 70, unknown conditional: 0, unknown unconditional: 70] , Statistics on independence cache: Total cache size (in pairs): 263, Positive cache size: 246, Positive conditional cache size: 0, Positive unconditional cache size: 246, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 550.7ms, 77 PlacesBefore, 77 PlacesAfterwards, 118 TransitionsBefore, 118 TransitionsAfterwards, 2534 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 0 ChoiceCompositions, 16 TotalNumberOfCompositions, 1140 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 666, positive: 654, positive conditional: 0, positive unconditional: 654, negative: 12, negative conditional: 0, negative unconditional: 12, 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: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 666, positive: 654, positive conditional: 0, positive unconditional: 654, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 259, Positive cache size: 245, Positive conditional cache size: 0, Positive unconditional cache size: 245, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 297.8ms, 85 PlacesBefore, 85 PlacesAfterwards, 129 TransitionsBefore, 129 TransitionsAfterwards, 2714 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 723 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 213, positive: 199, positive conditional: 0, positive unconditional: 199, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 213, positive: 198, positive conditional: 0, positive unconditional: 198, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 262, Positive cache size: 246, Positive conditional cache size: 0, Positive unconditional cache size: 246, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 364.1ms, 92 PlacesBefore, 92 PlacesAfterwards, 140 TransitionsBefore, 140 TransitionsAfterwards, 2894 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 850 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 348, positive: 334, positive conditional: 0, positive unconditional: 334, negative: 14, negative conditional: 0, negative unconditional: 14, 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: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 348, positive: 333, positive conditional: 0, positive unconditional: 333, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 265, Positive cache size: 247, Positive conditional cache size: 0, Positive unconditional cache size: 247, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 224.2ms, 103 PlacesBefore, 99 PlacesAfterwards, 135 TransitionsBefore, 135 TransitionsAfterwards, 2692 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 601 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 123, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 123, positive: 108, positive conditional: 0, positive unconditional: 108, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 266, Positive cache size: 248, Positive conditional cache size: 0, Positive unconditional cache size: 248, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - 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 [L719] 1 w = 0 [L721] 1 return 0; [L736] 4 int lx = x; [L738] COND TRUE 4 !(ly == lx) [L738] 4 reach_error() VAL [r=0, w=0, x=3, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 7946.1ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2109.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1111.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 190 SDtfs, 192 SDslu, 85 SDs, 0 SdLazy, 718 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 304.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 119.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1103occurred in iteration=6, InterpolantAutomatonStates: 48, 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: 14.9ms SsaConstructionTime, 77.4ms SatisfiabilityAnalysisTime, 257.0ms InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 194 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...