/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe005_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:34:02,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:34:02,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:34:02,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:34:02,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:34:02,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:34:02,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:34:02,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:34:02,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:34:02,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:34:02,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:34:02,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:34:02,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:34:02,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:34:02,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:34:02,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:34:02,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:34:02,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:34:02,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:34:02,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:34:02,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:34:02,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:34:02,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:34:02,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:34:02,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:34:02,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:34:02,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:34:02,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:34:02,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:34:02,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:34:02,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:34:02,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:34:02,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:34:02,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:34:02,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:34:02,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:34:02,446 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 23:34:02,485 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:34:02,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:34:02,487 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:34:02,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:34:02,488 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:34:02,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:34:02,489 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:34:02,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:34:02,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:34:02,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:34:02,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:34:02,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:34:02,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:34:02,490 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:34:02,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:34:02,490 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:34:02,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:34:02,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:34:02,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:34:02,491 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:34:02,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:34:02,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:34:02,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:34:02,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:34:02,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:34:02,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:34:02,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:34:02,493 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:34:02,493 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:34:02,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:34:02,494 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:34:02,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:34:02,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:34:02,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:34:02,978 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:34:02,979 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:34:02,980 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_rmo.oepc.i [2021-04-28 23:34:03,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45282c977/08ff6591f549402993b3bdba93d77350/FLAG09ad381f9 [2021-04-28 23:34:04,085 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:34:04,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_rmo.oepc.i [2021-04-28 23:34:04,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45282c977/08ff6591f549402993b3bdba93d77350/FLAG09ad381f9 [2021-04-28 23:34:04,224 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45282c977/08ff6591f549402993b3bdba93d77350 [2021-04-28 23:34:04,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:34:04,274 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:34:04,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:34:04,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:34:04,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:34:04,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:34:04" (1/1) ... [2021-04-28 23:34:04,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4959bcfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:04, skipping insertion in model container [2021-04-28 23:34:04,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:34:04" (1/1) ... [2021-04-28 23:34:04,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:34:04,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:34:04,555 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-wmm/safe005_rmo.oepc.i[993,1006] [2021-04-28 23:34:05,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:34:05,030 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:34:05,048 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-wmm/safe005_rmo.oepc.i[993,1006] [2021-04-28 23:34:05,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:34:05,263 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:34:05,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:05 WrapperNode [2021-04-28 23:34:05,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:34:05,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:34:05,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:34:05,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:34:05,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:05" (1/1) ... [2021-04-28 23:34:05,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:05" (1/1) ... [2021-04-28 23:34:05,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:34:05,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:34:05,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:34:05,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:34:05,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:05" (1/1) ... [2021-04-28 23:34:05,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:05" (1/1) ... [2021-04-28 23:34:05,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:05" (1/1) ... [2021-04-28 23:34:05,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:05" (1/1) ... [2021-04-28 23:34:05,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:05" (1/1) ... [2021-04-28 23:34:05,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:05" (1/1) ... [2021-04-28 23:34:05,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:05" (1/1) ... [2021-04-28 23:34:05,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:34:05,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:34:05,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:34:05,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:34:05,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:05" (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 [2021-04-28 23:34:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:34:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:34:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:34:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:34:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:34:05,596 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:34:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:34:05,597 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:34:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:34:05,597 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:34:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:34:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:34:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:34:05,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:34:05,600 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 23:34:08,353 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:34:08,354 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 23:34:08,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:34:08 BoogieIcfgContainer [2021-04-28 23:34:08,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:34:08,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:34:08,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:34:08,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:34:08,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:34:04" (1/3) ... [2021-04-28 23:34:08,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14edfa2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:34:08, skipping insertion in model container [2021-04-28 23:34:08,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:05" (2/3) ... [2021-04-28 23:34:08,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14edfa2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:34:08, skipping insertion in model container [2021-04-28 23:34:08,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:34:08" (3/3) ... [2021-04-28 23:34:08,371 INFO L111 eAbstractionObserver]: Analyzing ICFG safe005_rmo.oepc.i [2021-04-28 23:34:08,382 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:34:08,391 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 23:34:08,392 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:34:08,439 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,440 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,440 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,440 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,440 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,441 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,441 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,441 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,441 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,447 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,447 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,447 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,447 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,448 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,448 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,448 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,448 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,448 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,449 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,449 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,449 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,449 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,454 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,454 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,454 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,458 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,458 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,458 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,458 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,458 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,464 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,467 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,467 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,467 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,468 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,468 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,468 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,469 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,470 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,476 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,477 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,477 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,477 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,479 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,479 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,479 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,480 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,480 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,480 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,481 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,481 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,481 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,481 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,488 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,488 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,488 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,488 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,488 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,489 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,489 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,489 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,489 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,495 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,496 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,496 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,501 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,501 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,502 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,502 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,502 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,502 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:08,505 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:34:08,534 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-04-28 23:34:08,564 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:34:08,564 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:34:08,564 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:34:08,565 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:34:08,565 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:34:08,565 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:34:08,565 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:34:08,565 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:34:08,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 97 transitions, 209 flow [2021-04-28 23:34:08,640 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-04-28 23:34:08,640 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:34:08,656 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-04-28 23:34:08,656 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 97 transitions, 209 flow [2021-04-28 23:34:08,669 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 94 transitions, 197 flow [2021-04-28 23:34:08,671 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:34:08,694 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 94 transitions, 197 flow [2021-04-28 23:34:08,702 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 94 transitions, 197 flow [2021-04-28 23:34:08,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 197 flow [2021-04-28 23:34:08,756 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-04-28 23:34:08,756 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:34:08,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-04-28 23:34:08,763 INFO L146 LiptonReduction]: Number of co-enabled transitions 1586 [2021-04-28 23:34:09,435 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-04-28 23:34:11,884 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 23:34:12,019 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 23:34:12,672 WARN L205 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 23:34:12,904 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 23:34:14,521 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 23:34:14,650 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 23:34:14,862 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 23:34:15,078 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 23:34:24,876 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 23:34:24,980 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 23:34:25,180 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 23:34:27,260 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:34:27,371 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:34:27,483 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:34:27,595 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:34:28,356 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 23:34:28,480 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 23:34:28,608 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 23:34:28,731 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 23:34:28,849 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 23:34:28,963 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 23:34:29,080 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 23:34:29,197 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 23:34:29,327 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 23:34:29,428 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 23:34:29,534 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 23:34:29,639 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 23:34:30,854 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 23:34:30,961 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 23:34:31,068 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 23:34:31,176 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 23:34:31,916 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 23:34:34,174 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 23:34:34,393 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 23:34:34,528 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 23:34:34,659 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 23:34:34,785 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 23:34:35,432 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 23:34:35,561 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 23:34:35,678 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 23:34:35,793 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 23:34:37,176 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 23:34:37,811 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:34:37,923 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:34:38,038 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:34:38,151 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:34:38,297 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 23:34:38,435 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 23:34:38,578 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 23:34:38,718 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 23:34:38,853 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 23:34:38,981 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 23:34:39,118 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 23:34:39,250 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 23:34:39,449 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 23:34:39,622 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 23:34:39,835 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 23:34:40,013 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 23:34:40,186 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:34:40,356 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:34:40,520 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:34:40,693 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:34:40,886 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:41,077 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:41,260 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:41,432 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:41,597 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 23:34:41,770 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 23:34:41,942 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 23:34:42,114 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 23:34:42,594 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2021-04-28 23:34:42,847 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-04-28 23:34:43,337 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2021-04-28 23:34:43,568 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-04-28 23:34:43,751 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:43,934 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:44,122 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:44,312 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:44,503 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:44,689 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:44,874 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:45,063 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:45,220 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 23:34:45,375 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 23:34:45,531 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 23:34:45,722 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 23:34:46,220 WARN L205 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-28 23:34:46,451 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-04-28 23:34:46,943 WARN L205 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-28 23:34:47,162 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-04-28 23:34:47,319 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 23:34:47,474 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 23:34:47,632 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 23:34:47,789 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 23:34:48,301 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:48,480 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:48,671 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:48,862 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 23:34:49,016 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 23:34:49,165 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 23:34:49,326 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 23:34:49,478 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 23:34:49,619 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 23:34:49,761 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 23:34:49,902 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 23:34:50,044 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 23:34:50,099 INFO L158 LiptonReduction]: Checked pairs total: 16553 [2021-04-28 23:34:50,100 INFO L160 LiptonReduction]: Total number of compositions: 262 [2021-04-28 23:34:50,112 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41442 [2021-04-28 23:34:50,164 INFO L129 PetriNetUnfolder]: 0/67 cut-off events. [2021-04-28 23:34:50,164 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:34:50,164 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:34:50,165 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-28 23:34:50,165 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:34:50,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:34:50,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1086718707, now seen corresponding path program 1 times [2021-04-28 23:34:50,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:34:50,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069719190] [2021-04-28 23:34:50,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:34:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:34:50,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:50,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:34:50,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:34:50,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069719190] [2021-04-28 23:34:50,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:34:50,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:34:50,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676949186] [2021-04-28 23:34:50,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:34:50,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:34:50,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:34:50,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:34:50,600 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 359 [2021-04-28 23:34:50,606 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 125 transitions, 259 flow. Second operand has 3 states, 3 states have (on average 283.6666666666667) internal successors, (851), 3 states have internal predecessors, (851), 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) [2021-04-28 23:34:50,607 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:34:50,607 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 359 [2021-04-28 23:34:50,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:34:50,758 INFO L129 PetriNetUnfolder]: 29/396 cut-off events. [2021-04-28 23:34:50,759 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:34:50,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 396 events. 29/396 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3159 event pairs, 15 based on Foata normal form. 23/103 useless extension candidates. Maximal degree in co-relation 399. Up to 41 conditions per place. [2021-04-28 23:34:50,765 INFO L132 encePairwiseOnDemand]: 342/359 looper letters, 7 selfloop transitions, 2 changer transitions 53/124 dead transitions. [2021-04-28 23:34:50,765 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 124 transitions, 297 flow [2021-04-28 23:34:50,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:34:50,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:34:50,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 876 transitions. [2021-04-28 23:34:50,786 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8133704735376045 [2021-04-28 23:34:50,787 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 876 transitions. [2021-04-28 23:34:50,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 876 transitions. [2021-04-28 23:34:50,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:34:50,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 876 transitions. [2021-04-28 23:34:50,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 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) [2021-04-28 23:34:50,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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) [2021-04-28 23:34:50,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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) [2021-04-28 23:34:50,816 INFO L185 Difference]: Start difference. First operand has 134 places, 125 transitions, 259 flow. Second operand 3 states and 876 transitions. [2021-04-28 23:34:50,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 124 transitions, 297 flow [2021-04-28 23:34:50,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 124 transitions, 294 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:34:50,824 INFO L241 Difference]: Finished difference. Result has 130 places, 68 transitions, 146 flow [2021-04-28 23:34:50,827 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=130, PETRI_TRANSITIONS=68} [2021-04-28 23:34:50,828 INFO L343 CegarLoopForPetriNet]: 134 programPoint places, -4 predicate places. [2021-04-28 23:34:50,828 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:34:50,829 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 68 transitions, 146 flow [2021-04-28 23:34:50,829 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 68 transitions, 146 flow [2021-04-28 23:34:50,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 68 transitions, 146 flow [2021-04-28 23:34:50,839 INFO L129 PetriNetUnfolder]: 0/68 cut-off events. [2021-04-28 23:34:50,840 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:34:50,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 0/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 338 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 23:34:50,842 INFO L146 LiptonReduction]: Number of co-enabled transitions 1994 [2021-04-28 23:34:51,172 INFO L158 LiptonReduction]: Checked pairs total: 2506 [2021-04-28 23:34:51,173 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:34:51,173 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 345 [2021-04-28 23:34:51,175 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 68 transitions, 146 flow [2021-04-28 23:34:51,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 283.6666666666667) internal successors, (851), 3 states have internal predecessors, (851), 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) [2021-04-28 23:34:51,176 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:34:51,176 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:34:51,176 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:34:51,177 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:34:51,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:34:51,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1697988528, now seen corresponding path program 1 times [2021-04-28 23:34:51,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:34:51,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319538057] [2021-04-28 23:34:51,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:34:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:34:51,318 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:34:51,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:34:51,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:34:51,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319538057] [2021-04-28 23:34:51,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:34:51,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:34:51,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046523803] [2021-04-28 23:34:51,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:34:51,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:34:51,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:34:51,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:34:51,335 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 359 [2021-04-28 23:34:51,336 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 68 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 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) [2021-04-28 23:34:51,336 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:34:51,336 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 359 [2021-04-28 23:34:51,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:34:52,035 INFO L129 PetriNetUnfolder]: 1185/3267 cut-off events. [2021-04-28 23:34:52,035 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:34:52,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5195 conditions, 3267 events. 1185/3267 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 35660 event pairs, 454 based on Foata normal form. 0/1904 useless extension candidates. Maximal degree in co-relation 5186. Up to 1314 conditions per place. [2021-04-28 23:34:52,055 INFO L132 encePairwiseOnDemand]: 339/359 looper letters, 5 selfloop transitions, 6 changer transitions 46/94 dead transitions. [2021-04-28 23:34:52,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 94 transitions, 312 flow [2021-04-28 23:34:52,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:34:52,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:34:52,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 684 transitions. [2021-04-28 23:34:52,060 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6350974930362117 [2021-04-28 23:34:52,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 684 transitions. [2021-04-28 23:34:52,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 684 transitions. [2021-04-28 23:34:52,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:34:52,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 684 transitions. [2021-04-28 23:34:52,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 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) [2021-04-28 23:34:52,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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) [2021-04-28 23:34:52,068 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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) [2021-04-28 23:34:52,068 INFO L185 Difference]: Start difference. First operand has 77 places, 68 transitions, 146 flow. Second operand 3 states and 684 transitions. [2021-04-28 23:34:52,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 94 transitions, 312 flow [2021-04-28 23:34:52,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 94 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:34:52,072 INFO L241 Difference]: Finished difference. Result has 79 places, 48 transitions, 136 flow [2021-04-28 23:34:52,073 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=79, PETRI_TRANSITIONS=48} [2021-04-28 23:34:52,073 INFO L343 CegarLoopForPetriNet]: 134 programPoint places, -55 predicate places. [2021-04-28 23:34:52,074 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:34:52,074 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 48 transitions, 136 flow [2021-04-28 23:34:52,075 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 48 transitions, 136 flow [2021-04-28 23:34:52,075 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 48 transitions, 136 flow [2021-04-28 23:34:52,116 INFO L129 PetriNetUnfolder]: 46/226 cut-off events. [2021-04-28 23:34:52,116 INFO L130 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2021-04-28 23:34:52,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 226 events. 46/226 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1401 event pairs, 16 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 367. Up to 56 conditions per place. [2021-04-28 23:34:52,125 INFO L146 LiptonReduction]: Number of co-enabled transitions 1216 [2021-04-28 23:34:52,497 INFO L158 LiptonReduction]: Checked pairs total: 546 [2021-04-28 23:34:52,497 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:34:52,497 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 423 [2021-04-28 23:34:52,502 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 136 flow [2021-04-28 23:34:52,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 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) [2021-04-28 23:34:52,503 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:34:52,503 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:34:52,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:34:52,503 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:34:52,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:34:52,504 INFO L82 PathProgramCache]: Analyzing trace with hash 71392028, now seen corresponding path program 1 times [2021-04-28 23:34:52,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:34:52,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213691341] [2021-04-28 23:34:52,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:34:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:34:52,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:52,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:34:52,575 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:34:52,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:34:52,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:34:52,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213691341] [2021-04-28 23:34:52,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:34:52,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:34:52,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644561468] [2021-04-28 23:34:52,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:34:52,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:34:52,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:34:52,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:34:52,592 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 359 [2021-04-28 23:34:52,594 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 210.75) internal successors, (843), 4 states have internal predecessors, (843), 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) [2021-04-28 23:34:52,594 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:34:52,594 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 359 [2021-04-28 23:34:52,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:34:52,671 INFO L129 PetriNetUnfolder]: 34/180 cut-off events. [2021-04-28 23:34:52,671 INFO L130 PetriNetUnfolder]: For 40/113 co-relation queries the response was YES. [2021-04-28 23:34:52,672 INFO L84 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 180 events. 34/180 cut-off events. For 40/113 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1007 event pairs, 0 based on Foata normal form. 2/121 useless extension candidates. Maximal degree in co-relation 368. Up to 44 conditions per place. [2021-04-28 23:34:52,674 INFO L132 encePairwiseOnDemand]: 352/359 looper letters, 7 selfloop transitions, 7 changer transitions 5/53 dead transitions. [2021-04-28 23:34:52,674 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 53 transitions, 194 flow [2021-04-28 23:34:52,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:34:52,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:34:52,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 854 transitions. [2021-04-28 23:34:52,678 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5947075208913649 [2021-04-28 23:34:52,678 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 854 transitions. [2021-04-28 23:34:52,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 854 transitions. [2021-04-28 23:34:52,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:34:52,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 854 transitions. [2021-04-28 23:34:52,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 213.5) internal successors, (854), 4 states have internal predecessors, (854), 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) [2021-04-28 23:34:52,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 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) [2021-04-28 23:34:52,688 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 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) [2021-04-28 23:34:52,688 INFO L185 Difference]: Start difference. First operand has 55 places, 48 transitions, 136 flow. Second operand 4 states and 854 transitions. [2021-04-28 23:34:52,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 53 transitions, 194 flow [2021-04-28 23:34:52,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:34:52,695 INFO L241 Difference]: Finished difference. Result has 59 places, 47 transitions, 160 flow [2021-04-28 23:34:52,695 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=59, PETRI_TRANSITIONS=47} [2021-04-28 23:34:52,695 INFO L343 CegarLoopForPetriNet]: 134 programPoint places, -75 predicate places. [2021-04-28 23:34:52,695 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:34:52,696 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 47 transitions, 160 flow [2021-04-28 23:34:52,697 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 47 transitions, 160 flow [2021-04-28 23:34:52,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 47 transitions, 160 flow [2021-04-28 23:34:52,728 INFO L129 PetriNetUnfolder]: 33/180 cut-off events. [2021-04-28 23:34:52,729 INFO L130 PetriNetUnfolder]: For 82/92 co-relation queries the response was YES. [2021-04-28 23:34:52,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 180 events. 33/180 cut-off events. For 82/92 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1022 event pairs, 5 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 338. Up to 44 conditions per place. [2021-04-28 23:34:52,734 INFO L146 LiptonReduction]: Number of co-enabled transitions 1168 [2021-04-28 23:34:52,739 INFO L158 LiptonReduction]: Checked pairs total: 567 [2021-04-28 23:34:52,739 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:34:52,739 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-04-28 23:34:52,741 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 47 transitions, 160 flow [2021-04-28 23:34:52,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 210.75) internal successors, (843), 4 states have internal predecessors, (843), 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) [2021-04-28 23:34:52,742 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:34:52,743 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:34:52,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:34:52,744 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:34:52,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:34:52,744 INFO L82 PathProgramCache]: Analyzing trace with hash 324118815, now seen corresponding path program 1 times [2021-04-28 23:34:52,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:34:52,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856150087] [2021-04-28 23:34:52,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:34:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:34:52,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:52,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:34:52,891 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:34:52,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:34:52,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:34:52,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856150087] [2021-04-28 23:34:52,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:34:52,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:34:52,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246788956] [2021-04-28 23:34:52,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:34:52,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:34:52,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:34:52,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:34:52,913 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 359 [2021-04-28 23:34:52,915 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 47 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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) [2021-04-28 23:34:52,915 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:34:52,915 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 359 [2021-04-28 23:34:52,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:34:52,974 INFO L129 PetriNetUnfolder]: 23/146 cut-off events. [2021-04-28 23:34:52,975 INFO L130 PetriNetUnfolder]: For 81/147 co-relation queries the response was YES. [2021-04-28 23:34:52,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 146 events. 23/146 cut-off events. For 81/147 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 761 event pairs, 1 based on Foata normal form. 5/98 useless extension candidates. Maximal degree in co-relation 322. Up to 34 conditions per place. [2021-04-28 23:34:52,976 INFO L132 encePairwiseOnDemand]: 353/359 looper letters, 10 selfloop transitions, 6 changer transitions 2/52 dead transitions. [2021-04-28 23:34:52,977 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 52 transitions, 228 flow [2021-04-28 23:34:52,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:34:52,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:34:52,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 853 transitions. [2021-04-28 23:34:52,980 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5940111420612814 [2021-04-28 23:34:52,980 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 853 transitions. [2021-04-28 23:34:52,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 853 transitions. [2021-04-28 23:34:52,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:34:52,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 853 transitions. [2021-04-28 23:34:52,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 213.25) internal successors, (853), 4 states have internal predecessors, (853), 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) [2021-04-28 23:34:52,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 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) [2021-04-28 23:34:52,990 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 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) [2021-04-28 23:34:52,991 INFO L185 Difference]: Start difference. First operand has 56 places, 47 transitions, 160 flow. Second operand 4 states and 853 transitions. [2021-04-28 23:34:52,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 52 transitions, 228 flow [2021-04-28 23:34:52,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 52 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:34:52,996 INFO L241 Difference]: Finished difference. Result has 61 places, 49 transitions, 203 flow [2021-04-28 23:34:52,996 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=203, PETRI_PLACES=61, PETRI_TRANSITIONS=49} [2021-04-28 23:34:52,996 INFO L343 CegarLoopForPetriNet]: 134 programPoint places, -73 predicate places. [2021-04-28 23:34:52,996 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:34:52,997 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 49 transitions, 203 flow [2021-04-28 23:34:52,997 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 49 transitions, 203 flow [2021-04-28 23:34:52,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 203 flow [2021-04-28 23:34:53,023 INFO L129 PetriNetUnfolder]: 21/144 cut-off events. [2021-04-28 23:34:53,024 INFO L130 PetriNetUnfolder]: For 113/116 co-relation queries the response was YES. [2021-04-28 23:34:53,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 144 events. 21/144 cut-off events. For 113/116 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 798 event pairs, 8 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 304. Up to 34 conditions per place. [2021-04-28 23:34:53,029 INFO L146 LiptonReduction]: Number of co-enabled transitions 1246 [2021-04-28 23:34:53,035 INFO L158 LiptonReduction]: Checked pairs total: 617 [2021-04-28 23:34:53,036 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:34:53,036 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-04-28 23:34:53,048 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 203 flow [2021-04-28 23:34:53,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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) [2021-04-28 23:34:53,051 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:34:53,051 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:34:53,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:34:53,052 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:34:53,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:34:53,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1346087157, now seen corresponding path program 1 times [2021-04-28 23:34:53,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:34:53,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943496708] [2021-04-28 23:34:53,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:34:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:34:53,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:53,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:34:53,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:53,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:34:53,142 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:34:53,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:34:53,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:34:53,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943496708] [2021-04-28 23:34:53,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:34:53,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:34:53,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231527478] [2021-04-28 23:34:53,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:34:53,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:34:53,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:34:53,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:34:53,160 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 359 [2021-04-28 23:34:53,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 203 flow. Second operand has 5 states, 5 states have (on average 211.0) internal successors, (1055), 5 states have internal predecessors, (1055), 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) [2021-04-28 23:34:53,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:34:53,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 359 [2021-04-28 23:34:53,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:34:53,245 INFO L129 PetriNetUnfolder]: 20/187 cut-off events. [2021-04-28 23:34:53,245 INFO L130 PetriNetUnfolder]: For 171/209 co-relation queries the response was YES. [2021-04-28 23:34:53,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 187 events. 20/187 cut-off events. For 171/209 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1245 event pairs, 0 based on Foata normal form. 10/127 useless extension candidates. Maximal degree in co-relation 444. Up to 41 conditions per place. [2021-04-28 23:34:53,247 INFO L132 encePairwiseOnDemand]: 352/359 looper letters, 6 selfloop transitions, 10 changer transitions 14/63 dead transitions. [2021-04-28 23:34:53,247 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 63 transitions, 382 flow [2021-04-28 23:34:53,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:34:53,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:34:53,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1069 transitions. [2021-04-28 23:34:53,252 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5955431754874652 [2021-04-28 23:34:53,252 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1069 transitions. [2021-04-28 23:34:53,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1069 transitions. [2021-04-28 23:34:53,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:34:53,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1069 transitions. [2021-04-28 23:34:53,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 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) [2021-04-28 23:34:53,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 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) [2021-04-28 23:34:53,265 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 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) [2021-04-28 23:34:53,265 INFO L185 Difference]: Start difference. First operand has 61 places, 49 transitions, 203 flow. Second operand 5 states and 1069 transitions. [2021-04-28 23:34:53,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 63 transitions, 382 flow [2021-04-28 23:34:53,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 63 transitions, 370 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 23:34:53,275 INFO L241 Difference]: Finished difference. Result has 65 places, 49 transitions, 226 flow [2021-04-28 23:34:53,275 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=226, PETRI_PLACES=65, PETRI_TRANSITIONS=49} [2021-04-28 23:34:53,275 INFO L343 CegarLoopForPetriNet]: 134 programPoint places, -69 predicate places. [2021-04-28 23:34:53,276 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:34:53,276 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 49 transitions, 226 flow [2021-04-28 23:34:53,276 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 49 transitions, 226 flow [2021-04-28 23:34:53,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 49 transitions, 226 flow [2021-04-28 23:34:53,296 INFO L129 PetriNetUnfolder]: 11/111 cut-off events. [2021-04-28 23:34:53,296 INFO L130 PetriNetUnfolder]: For 101/106 co-relation queries the response was YES. [2021-04-28 23:34:53,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 111 events. 11/111 cut-off events. For 101/106 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 579 event pairs, 1 based on Foata normal form. 2/69 useless extension candidates. Maximal degree in co-relation 239. Up to 24 conditions per place. [2021-04-28 23:34:53,300 INFO L146 LiptonReduction]: Number of co-enabled transitions 1194 [2021-04-28 23:34:53,305 INFO L158 LiptonReduction]: Checked pairs total: 585 [2021-04-28 23:34:53,305 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:34:53,305 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-04-28 23:34:53,308 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 49 transitions, 226 flow [2021-04-28 23:34:53,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 211.0) internal successors, (1055), 5 states have internal predecessors, (1055), 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) [2021-04-28 23:34:53,309 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:34:53,309 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:34:53,310 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:34:53,310 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:34:53,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:34:53,310 INFO L82 PathProgramCache]: Analyzing trace with hash 912558741, now seen corresponding path program 1 times [2021-04-28 23:34:53,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:34:53,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225049263] [2021-04-28 23:34:53,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:34:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:34:53,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:53,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:34:53,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:53,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:34:53,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:53,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:34:53,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:34:53,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225049263] [2021-04-28 23:34:53,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:34:53,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:34:53,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920638622] [2021-04-28 23:34:53,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:34:53,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:34:53,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:34:53,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:34:53,428 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 359 [2021-04-28 23:34:53,430 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 49 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 221.25) internal successors, (885), 4 states have internal predecessors, (885), 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) [2021-04-28 23:34:53,430 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:34:53,430 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 359 [2021-04-28 23:34:53,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:34:53,487 INFO L129 PetriNetUnfolder]: 7/135 cut-off events. [2021-04-28 23:34:53,487 INFO L130 PetriNetUnfolder]: For 169/191 co-relation queries the response was YES. [2021-04-28 23:34:53,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 135 events. 7/135 cut-off events. For 169/191 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 844 event pairs, 0 based on Foata normal form. 9/88 useless extension candidates. Maximal degree in co-relation 306. Up to 25 conditions per place. [2021-04-28 23:34:53,489 INFO L132 encePairwiseOnDemand]: 355/359 looper letters, 6 selfloop transitions, 5 changer transitions 7/52 dead transitions. [2021-04-28 23:34:53,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 52 transitions, 281 flow [2021-04-28 23:34:53,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:34:53,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:34:53,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1113 transitions. [2021-04-28 23:34:53,493 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6200557103064067 [2021-04-28 23:34:53,494 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1113 transitions. [2021-04-28 23:34:53,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1113 transitions. [2021-04-28 23:34:53,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:34:53,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1113 transitions. [2021-04-28 23:34:53,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 222.6) internal successors, (1113), 5 states have internal predecessors, (1113), 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) [2021-04-28 23:34:53,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 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) [2021-04-28 23:34:53,505 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 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) [2021-04-28 23:34:53,505 INFO L185 Difference]: Start difference. First operand has 64 places, 49 transitions, 226 flow. Second operand 5 states and 1113 transitions. [2021-04-28 23:34:53,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 52 transitions, 281 flow [2021-04-28 23:34:53,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 52 transitions, 252 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-04-28 23:34:53,511 INFO L241 Difference]: Finished difference. Result has 68 places, 45 transitions, 191 flow [2021-04-28 23:34:53,511 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=68, PETRI_TRANSITIONS=45} [2021-04-28 23:34:53,511 INFO L343 CegarLoopForPetriNet]: 134 programPoint places, -66 predicate places. [2021-04-28 23:34:53,511 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:34:53,512 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 45 transitions, 191 flow [2021-04-28 23:34:53,512 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 45 transitions, 191 flow [2021-04-28 23:34:53,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 45 transitions, 191 flow [2021-04-28 23:34:53,531 INFO L129 PetriNetUnfolder]: 4/85 cut-off events. [2021-04-28 23:34:53,531 INFO L130 PetriNetUnfolder]: For 80/82 co-relation queries the response was YES. [2021-04-28 23:34:53,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 85 events. 4/85 cut-off events. For 80/82 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 430 event pairs, 0 based on Foata normal form. 2/50 useless extension candidates. Maximal degree in co-relation 161. Up to 13 conditions per place. [2021-04-28 23:34:53,534 INFO L146 LiptonReduction]: Number of co-enabled transitions 958 [2021-04-28 23:34:53,839 INFO L158 LiptonReduction]: Checked pairs total: 505 [2021-04-28 23:34:53,839 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:34:53,840 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 329 [2021-04-28 23:34:53,843 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 45 transitions, 191 flow [2021-04-28 23:34:53,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 221.25) internal successors, (885), 4 states have internal predecessors, (885), 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) [2021-04-28 23:34:53,844 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:34:53,844 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:34:53,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:34:53,844 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:34:53,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:34:53,845 INFO L82 PathProgramCache]: Analyzing trace with hash 34678948, now seen corresponding path program 1 times [2021-04-28 23:34:53,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:34:53,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790953609] [2021-04-28 23:34:53,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:34:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:34:53,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:53,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:34:53,970 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 23:34:53,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 23:34:53,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:53,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:34:53,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:34:53,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790953609] [2021-04-28 23:34:53,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:34:53,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:34:53,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930076284] [2021-04-28 23:34:53,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:34:53,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:34:53,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:34:53,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:34:53,987 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 359 [2021-04-28 23:34:53,988 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 45 transitions, 191 flow. Second operand has 4 states, 4 states have (on average 231.75) internal successors, (927), 4 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) [2021-04-28 23:34:53,989 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:34:53,989 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 359 [2021-04-28 23:34:53,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:34:55,645 INFO L129 PetriNetUnfolder]: 8639/13619 cut-off events. [2021-04-28 23:34:55,645 INFO L130 PetriNetUnfolder]: For 414/433 co-relation queries the response was YES. [2021-04-28 23:34:55,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27438 conditions, 13619 events. 8639/13619 cut-off events. For 414/433 co-relation queries the response was YES. Maximal size of possible extension queue 3073. Compared 114608 event pairs, 1350 based on Foata normal form. 197/3735 useless extension candidates. Maximal degree in co-relation 27417. Up to 7723 conditions per place. [2021-04-28 23:34:55,729 INFO L132 encePairwiseOnDemand]: 340/359 looper letters, 31 selfloop transitions, 11 changer transitions 12/75 dead transitions. [2021-04-28 23:34:55,729 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 75 transitions, 359 flow [2021-04-28 23:34:55,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:34:55,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:34:55,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 973 transitions. [2021-04-28 23:34:55,733 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6775766016713092 [2021-04-28 23:34:55,733 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 973 transitions. [2021-04-28 23:34:55,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 973 transitions. [2021-04-28 23:34:55,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:34:55,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 973 transitions. [2021-04-28 23:34:55,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 243.25) internal successors, (973), 4 states have internal predecessors, (973), 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) [2021-04-28 23:34:55,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 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) [2021-04-28 23:34:55,741 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 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) [2021-04-28 23:34:55,741 INFO L185 Difference]: Start difference. First operand has 65 places, 45 transitions, 191 flow. Second operand 4 states and 973 transitions. [2021-04-28 23:34:55,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 75 transitions, 359 flow [2021-04-28 23:34:55,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 75 transitions, 318 flow, removed 4 selfloop flow, removed 11 redundant places. [2021-04-28 23:34:55,747 INFO L241 Difference]: Finished difference. Result has 59 places, 54 transitions, 254 flow [2021-04-28 23:34:55,748 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=254, PETRI_PLACES=59, PETRI_TRANSITIONS=54} [2021-04-28 23:34:55,748 INFO L343 CegarLoopForPetriNet]: 134 programPoint places, -75 predicate places. [2021-04-28 23:34:55,748 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:34:55,748 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 54 transitions, 254 flow [2021-04-28 23:34:55,749 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 54 transitions, 254 flow [2021-04-28 23:34:55,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 54 transitions, 254 flow [2021-04-28 23:34:56,259 INFO L129 PetriNetUnfolder]: 3516/6307 cut-off events. [2021-04-28 23:34:56,259 INFO L130 PetriNetUnfolder]: For 424/466 co-relation queries the response was YES. [2021-04-28 23:34:56,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13320 conditions, 6307 events. 3516/6307 cut-off events. For 424/466 co-relation queries the response was YES. Maximal size of possible extension queue 1498. Compared 57691 event pairs, 1256 based on Foata normal form. 9/2031 useless extension candidates. Maximal degree in co-relation 13306. Up to 6193 conditions per place. [2021-04-28 23:34:56,339 INFO L146 LiptonReduction]: Number of co-enabled transitions 824 [2021-04-28 23:34:56,459 INFO L158 LiptonReduction]: Checked pairs total: 489 [2021-04-28 23:34:56,460 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:34:56,460 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 712 [2021-04-28 23:34:56,461 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 254 flow [2021-04-28 23:34:56,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 231.75) internal successors, (927), 4 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) [2021-04-28 23:34:56,462 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:34:56,462 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:34:56,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:34:56,463 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:34:56,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:34:56,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1075059708, now seen corresponding path program 1 times [2021-04-28 23:34:56,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:34:56,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036340055] [2021-04-28 23:34:56,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:34:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:34:56,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:56,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:34:56,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:56,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:34:56,584 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 23:34:56,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 23:34:56,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:56,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:34:56,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:34:56,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036340055] [2021-04-28 23:34:56,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:34:56,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:34:56,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116967710] [2021-04-28 23:34:56,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:34:56,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:34:56,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:34:56,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:34:56,602 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 359 [2021-04-28 23:34:56,604 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 254 flow. Second operand has 5 states, 5 states have (on average 231.8) internal successors, (1159), 5 states have internal predecessors, (1159), 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) [2021-04-28 23:34:56,604 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:34:56,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 359 [2021-04-28 23:34:56,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:34:57,360 INFO L129 PetriNetUnfolder]: 4142/7217 cut-off events. [2021-04-28 23:34:57,360 INFO L130 PetriNetUnfolder]: For 1433/24518 co-relation queries the response was YES. [2021-04-28 23:34:57,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22259 conditions, 7217 events. 4142/7217 cut-off events. For 1433/24518 co-relation queries the response was YES. Maximal size of possible extension queue 1821. Compared 63366 event pairs, 0 based on Foata normal form. 214/2727 useless extension candidates. Maximal degree in co-relation 22243. Up to 6670 conditions per place. [2021-04-28 23:34:57,402 INFO L132 encePairwiseOnDemand]: 347/359 looper letters, 31 selfloop transitions, 20 changer transitions 3/75 dead transitions. [2021-04-28 23:34:57,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 75 transitions, 443 flow [2021-04-28 23:34:57,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:34:57,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:34:57,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1207 transitions. [2021-04-28 23:34:57,407 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6724233983286908 [2021-04-28 23:34:57,407 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1207 transitions. [2021-04-28 23:34:57,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1207 transitions. [2021-04-28 23:34:57,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:34:57,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1207 transitions. [2021-04-28 23:34:57,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 241.4) internal successors, (1207), 5 states have internal predecessors, (1207), 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) [2021-04-28 23:34:57,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 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) [2021-04-28 23:34:57,417 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 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) [2021-04-28 23:34:57,417 INFO L185 Difference]: Start difference. First operand has 58 places, 54 transitions, 254 flow. Second operand 5 states and 1207 transitions. [2021-04-28 23:34:57,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 75 transitions, 443 flow [2021-04-28 23:34:57,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 75 transitions, 440 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:34:57,421 INFO L241 Difference]: Finished difference. Result has 63 places, 63 transitions, 378 flow [2021-04-28 23:34:57,421 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=378, PETRI_PLACES=63, PETRI_TRANSITIONS=63} [2021-04-28 23:34:57,422 INFO L343 CegarLoopForPetriNet]: 134 programPoint places, -71 predicate places. [2021-04-28 23:34:57,422 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:34:57,422 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 63 transitions, 378 flow [2021-04-28 23:34:57,422 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 63 transitions, 378 flow [2021-04-28 23:34:57,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 63 transitions, 378 flow [2021-04-28 23:34:57,946 INFO L129 PetriNetUnfolder]: 3305/6121 cut-off events. [2021-04-28 23:34:57,947 INFO L130 PetriNetUnfolder]: For 2467/7316 co-relation queries the response was YES. [2021-04-28 23:34:57,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21377 conditions, 6121 events. 3305/6121 cut-off events. For 2467/7316 co-relation queries the response was YES. Maximal size of possible extension queue 1451. Compared 57485 event pairs, 90 based on Foata normal form. 18/2043 useless extension candidates. Maximal degree in co-relation 21360. Up to 5914 conditions per place. [2021-04-28 23:34:58,043 INFO L146 LiptonReduction]: Number of co-enabled transitions 844 [2021-04-28 23:34:58,060 INFO L158 LiptonReduction]: Checked pairs total: 693 [2021-04-28 23:34:58,060 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:34:58,061 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 639 [2021-04-28 23:34:58,062 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 63 transitions, 378 flow [2021-04-28 23:34:58,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 231.8) internal successors, (1159), 5 states have internal predecessors, (1159), 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) [2021-04-28 23:34:58,063 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:34:58,063 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:34:58,064 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:34:58,064 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:34:58,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:34:58,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1158817599, now seen corresponding path program 1 times [2021-04-28 23:34:58,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:34:58,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291243749] [2021-04-28 23:34:58,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:34:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:34:58,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:58,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 23:34:58,298 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.5 percent of original size [2021-04-28 23:34:58,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-04-28 23:34:58,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:58,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-04-28 23:34:58,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:58,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 23:34:58,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:58,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 23:34:58,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:34:58,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:34:58,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:34:58,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291243749] [2021-04-28 23:34:58,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:34:58,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 23:34:58,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624913319] [2021-04-28 23:34:58,399 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-28 23:34:58,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:34:58,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-28 23:34:58,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-04-28 23:34:58,404 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 359 [2021-04-28 23:34:58,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 63 transitions, 378 flow. Second operand has 8 states, 8 states have (on average 169.875) internal successors, (1359), 8 states have internal predecessors, (1359), 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) [2021-04-28 23:34:58,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:34:58,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 359 [2021-04-28 23:34:58,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:34:59,610 INFO L129 PetriNetUnfolder]: 5970/11228 cut-off events. [2021-04-28 23:34:59,610 INFO L130 PetriNetUnfolder]: For 6496/62221 co-relation queries the response was YES. [2021-04-28 23:34:59,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40135 conditions, 11228 events. 5970/11228 cut-off events. For 6496/62221 co-relation queries the response was YES. Maximal size of possible extension queue 2952. Compared 114715 event pairs, 173 based on Foata normal form. 118/3600 useless extension candidates. Maximal degree in co-relation 40116. Up to 10765 conditions per place. [2021-04-28 23:34:59,690 INFO L132 encePairwiseOnDemand]: 354/359 looper letters, 11 selfloop transitions, 4 changer transitions 3/72 dead transitions. [2021-04-28 23:34:59,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 72 transitions, 467 flow [2021-04-28 23:34:59,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:34:59,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:34:59,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1029 transitions. [2021-04-28 23:34:59,695 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4777158774373259 [2021-04-28 23:34:59,695 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1029 transitions. [2021-04-28 23:34:59,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1029 transitions. [2021-04-28 23:34:59,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:34:59,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1029 transitions. [2021-04-28 23:34:59,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 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) [2021-04-28 23:34:59,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 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) [2021-04-28 23:34:59,704 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 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) [2021-04-28 23:34:59,704 INFO L185 Difference]: Start difference. First operand has 63 places, 63 transitions, 378 flow. Second operand 6 states and 1029 transitions. [2021-04-28 23:34:59,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 72 transitions, 467 flow [2021-04-28 23:35:00,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 72 transitions, 411 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-04-28 23:35:00,700 INFO L241 Difference]: Finished difference. Result has 66 places, 64 transitions, 349 flow [2021-04-28 23:35:00,700 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=349, PETRI_PLACES=66, PETRI_TRANSITIONS=64} [2021-04-28 23:35:00,700 INFO L343 CegarLoopForPetriNet]: 134 programPoint places, -68 predicate places. [2021-04-28 23:35:00,700 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:35:00,701 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 64 transitions, 349 flow [2021-04-28 23:35:00,701 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 64 transitions, 349 flow [2021-04-28 23:35:00,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 64 transitions, 349 flow [2021-04-28 23:35:01,379 INFO L129 PetriNetUnfolder]: 4457/8248 cut-off events. [2021-04-28 23:35:01,380 INFO L130 PetriNetUnfolder]: For 2523/2764 co-relation queries the response was YES. [2021-04-28 23:35:01,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24968 conditions, 8248 events. 4457/8248 cut-off events. For 2523/2764 co-relation queries the response was YES. Maximal size of possible extension queue 2056. Compared 81556 event pairs, 108 based on Foata normal form. 20/2688 useless extension candidates. Maximal degree in co-relation 24950. Up to 7498 conditions per place. [2021-04-28 23:35:01,490 INFO L146 LiptonReduction]: Number of co-enabled transitions 852 [2021-04-28 23:35:01,790 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 23:35:02,334 INFO L158 LiptonReduction]: Checked pairs total: 675 [2021-04-28 23:35:02,334 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-28 23:35:02,335 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1635 [2021-04-28 23:35:02,336 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 64 transitions, 355 flow [2021-04-28 23:35:02,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 169.875) internal successors, (1359), 8 states have internal predecessors, (1359), 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) [2021-04-28 23:35:02,337 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:35:02,337 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:35:02,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 23:35:02,338 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:35:02,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:35:02,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1574295707, now seen corresponding path program 1 times [2021-04-28 23:35:02,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:35:02,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193364135] [2021-04-28 23:35:02,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:35:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:35:02,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:02,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:02,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:02,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:02,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:02,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:02,434 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 23:35:02,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 23:35:02,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:02,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:35:02,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:35:02,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193364135] [2021-04-28 23:35:02,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:35:02,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 23:35:02,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336912126] [2021-04-28 23:35:02,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:35:02,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:35:02,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:35:02,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:35:02,452 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 362 [2021-04-28 23:35:02,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 64 transitions, 355 flow. Second operand has 6 states, 6 states have (on average 234.83333333333334) internal successors, (1409), 6 states have internal predecessors, (1409), 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) [2021-04-28 23:35:02,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:35:02,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 362 [2021-04-28 23:35:02,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:35:03,292 INFO L129 PetriNetUnfolder]: 4835/8741 cut-off events. [2021-04-28 23:35:03,292 INFO L130 PetriNetUnfolder]: For 3780/37136 co-relation queries the response was YES. [2021-04-28 23:35:03,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34334 conditions, 8741 events. 4835/8741 cut-off events. For 3780/37136 co-relation queries the response was YES. Maximal size of possible extension queue 2136. Compared 81014 event pairs, 0 based on Foata normal form. 257/3177 useless extension candidates. Maximal degree in co-relation 34314. Up to 7687 conditions per place. [2021-04-28 23:35:03,324 INFO L132 encePairwiseOnDemand]: 350/362 looper letters, 13 selfloop transitions, 29 changer transitions 6/68 dead transitions. [2021-04-28 23:35:03,324 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 68 transitions, 457 flow [2021-04-28 23:35:03,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:35:03,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:35:03,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1448 transitions. [2021-04-28 23:35:03,330 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2021-04-28 23:35:03,330 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1448 transitions. [2021-04-28 23:35:03,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1448 transitions. [2021-04-28 23:35:03,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:35:03,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1448 transitions. [2021-04-28 23:35:03,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 241.33333333333334) internal successors, (1448), 6 states have internal predecessors, (1448), 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) [2021-04-28 23:35:03,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 362.0) internal successors, (2534), 7 states have internal predecessors, (2534), 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) [2021-04-28 23:35:03,342 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 362.0) internal successors, (2534), 7 states have internal predecessors, (2534), 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) [2021-04-28 23:35:03,342 INFO L185 Difference]: Start difference. First operand has 66 places, 64 transitions, 355 flow. Second operand 6 states and 1448 transitions. [2021-04-28 23:35:03,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 68 transitions, 457 flow [2021-04-28 23:35:03,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 68 transitions, 438 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-04-28 23:35:03,353 INFO L241 Difference]: Finished difference. Result has 69 places, 62 transitions, 416 flow [2021-04-28 23:35:03,353 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=416, PETRI_PLACES=69, PETRI_TRANSITIONS=62} [2021-04-28 23:35:03,353 INFO L343 CegarLoopForPetriNet]: 134 programPoint places, -65 predicate places. [2021-04-28 23:35:03,353 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:35:03,353 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 62 transitions, 416 flow [2021-04-28 23:35:03,354 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 62 transitions, 416 flow [2021-04-28 23:35:03,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 62 transitions, 416 flow [2021-04-28 23:35:03,871 INFO L129 PetriNetUnfolder]: 3269/6239 cut-off events. [2021-04-28 23:35:03,871 INFO L130 PetriNetUnfolder]: For 9453/13507 co-relation queries the response was YES. [2021-04-28 23:35:03,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27939 conditions, 6239 events. 3269/6239 cut-off events. For 9453/13507 co-relation queries the response was YES. Maximal size of possible extension queue 1498. Compared 60776 event pairs, 0 based on Foata normal form. 1/1938 useless extension candidates. Maximal degree in co-relation 27920. Up to 5590 conditions per place. [2021-04-28 23:35:03,931 INFO L146 LiptonReduction]: Number of co-enabled transitions 672 [2021-04-28 23:35:04,012 INFO L158 LiptonReduction]: Checked pairs total: 540 [2021-04-28 23:35:04,012 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:35:04,013 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 660 [2021-04-28 23:35:04,014 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 62 transitions, 416 flow [2021-04-28 23:35:04,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 234.83333333333334) internal successors, (1409), 6 states have internal predecessors, (1409), 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) [2021-04-28 23:35:04,015 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:35:04,016 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:35:04,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 23:35:04,016 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:35:04,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:35:04,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1943287585, now seen corresponding path program 1 times [2021-04-28 23:35:04,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:35:04,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742786449] [2021-04-28 23:35:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:35:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 23:35:04,080 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 23:35:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 23:35:04,154 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 23:35:04,192 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 23:35:04,193 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 23:35:04,193 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 23:35:04,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:35:04 BasicIcfg [2021-04-28 23:35:04,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:35:04,319 INFO L168 Benchmark]: Toolchain (without parser) took 60089.92 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 767.6 MB). Free memory was 277.4 MB in the beginning and 777.7 MB in the end (delta: -500.3 MB). Peak memory consumption was 270.5 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:04,319 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 302.0 MB. Free memory was 271.8 MB in the beginning and 271.7 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:35:04,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 991.94 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 279.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:04,322 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.75 ms. Allocated memory is still 302.0 MB. Free memory was 279.4 MB in the beginning and 275.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:04,323 INFO L168 Benchmark]: Boogie Preprocessor took 85.99 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 273.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:04,323 INFO L168 Benchmark]: RCFGBuilder took 2897.00 ms. Allocated memory was 302.0 MB in the beginning and 367.0 MB in the end (delta: 65.0 MB). Free memory was 273.3 MB in the beginning and 298.8 MB in the end (delta: -25.5 MB). Peak memory consumption was 165.4 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:04,324 INFO L168 Benchmark]: TraceAbstraction took 55957.40 ms. Allocated memory was 367.0 MB in the beginning and 1.1 GB in the end (delta: 702.5 MB). Free memory was 298.8 MB in the beginning and 777.7 MB in the end (delta: -478.9 MB). Peak memory consumption was 222.6 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:04,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 302.0 MB. Free memory was 271.8 MB in the beginning and 271.7 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 991.94 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 279.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 103.75 ms. Allocated memory is still 302.0 MB. Free memory was 279.4 MB in the beginning and 275.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 85.99 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 273.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 2897.00 ms. Allocated memory was 302.0 MB in the beginning and 367.0 MB in the end (delta: 65.0 MB). Free memory was 273.3 MB in the beginning and 298.8 MB in the end (delta: -25.5 MB). Peak memory consumption was 165.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 55957.40 ms. Allocated memory was 367.0 MB in the beginning and 1.1 GB in the end (delta: 702.5 MB). Free memory was 298.8 MB in the beginning and 777.7 MB in the end (delta: -478.9 MB). Peak memory consumption was 222.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41398.1ms, 102 PlacesBefore, 134 PlacesAfterwards, 94 TransitionsBefore, 125 TransitionsAfterwards, 1586 CoEnabledTransitionPairs, 9 FixpointIterations, 162 TrivialSequentialCompositions, 98 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 262 TotalNumberOfCompositions, 16553 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5844, positive: 5567, positive conditional: 5567, positive unconditional: 0, negative: 277, negative conditional: 277, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2141, positive: 2084, positive conditional: 0, positive unconditional: 2084, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2141, positive: 2084, positive conditional: 0, positive unconditional: 2084, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2141, positive: 2058, positive conditional: 0, positive unconditional: 2058, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 83, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1236, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 1150, negative conditional: 0, negative unconditional: 1150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5844, positive: 3483, positive conditional: 3483, positive unconditional: 0, negative: 220, negative conditional: 220, negative unconditional: 0, unknown: 2141, unknown conditional: 2141, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2138, Positive cache size: 2081, Positive conditional cache size: 2081, Positive unconditional cache size: 0, Negative cache size: 57, Negative conditional cache size: 57, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 343.7ms, 130 PlacesBefore, 77 PlacesAfterwards, 68 TransitionsBefore, 68 TransitionsAfterwards, 1994 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 2506 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 501, positive: 423, positive conditional: 423, positive unconditional: 0, negative: 78, negative conditional: 78, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 80, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 80, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 80, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 319, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 305, negative conditional: 0, negative unconditional: 305, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 501, positive: 366, positive conditional: 366, positive unconditional: 0, negative: 55, negative conditional: 55, negative unconditional: 0, unknown: 80, unknown conditional: 80, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2218, Positive cache size: 2138, Positive conditional cache size: 2138, Positive unconditional cache size: 0, Negative cache size: 80, Negative conditional cache size: 80, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 422.5ms, 79 PlacesBefore, 55 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 1216 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 546 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 94, positive: 77, positive conditional: 77, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, positive: 15, positive conditional: 3, positive unconditional: 12, negative: 10, negative conditional: 2, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 25, positive: 15, positive conditional: 3, positive unconditional: 12, negative: 10, negative conditional: 2, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 25, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 10, negative conditional: 2, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 362, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 349, negative conditional: 189, negative unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 94, positive: 62, positive conditional: 62, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2243, Positive cache size: 2153, Positive conditional cache size: 2153, Positive unconditional cache size: 0, Negative cache size: 90, Negative conditional cache size: 90, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.8ms, 59 PlacesBefore, 56 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 1168 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 567 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 117, positive: 99, positive conditional: 99, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 13, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 13, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 117, positive: 84, positive conditional: 84, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2258, Positive cache size: 2168, Positive conditional cache size: 2168, Positive unconditional cache size: 0, Negative cache size: 90, Negative conditional cache size: 90, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.8ms, 61 PlacesBefore, 61 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1246 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 617 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 120, positive: 101, positive conditional: 101, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 15, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 15, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 120, positive: 83, positive conditional: 83, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2276, Positive cache size: 2186, Positive conditional cache size: 2186, Positive unconditional cache size: 0, Negative cache size: 90, Negative conditional cache size: 90, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.1ms, 65 PlacesBefore, 64 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1194 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 585 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 109, positive: 90, positive conditional: 90, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 7, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 7, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 109, positive: 77, positive conditional: 77, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2289, Positive cache size: 2199, Positive conditional cache size: 2199, Positive unconditional cache size: 0, Negative cache size: 90, Negative conditional cache size: 90, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 327.8ms, 68 PlacesBefore, 65 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 958 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 505 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 101, positive: 82, positive conditional: 82, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 15, positive conditional: 7, positive unconditional: 8, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 19, positive: 15, positive conditional: 7, positive unconditional: 8, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 19, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 298, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 298, negative conditional: 298, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 101, positive: 67, positive conditional: 67, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2308, Positive cache size: 2214, Positive conditional cache size: 2214, Positive unconditional cache size: 0, Negative cache size: 94, Negative conditional cache size: 94, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 711.1ms, 59 PlacesBefore, 58 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 824 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 489 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 111, positive: 96, positive conditional: 96, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 107, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 111, positive: 84, positive conditional: 84, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2323, Positive cache size: 2226, Positive conditional cache size: 2226, Positive unconditional cache size: 0, Negative cache size: 97, Negative conditional cache size: 97, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 638.3ms, 63 PlacesBefore, 63 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 844 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 693 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 228, positive: 207, positive conditional: 207, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 9, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 9, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 228, positive: 195, positive conditional: 195, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2335, Positive cache size: 2238, Positive conditional cache size: 2238, Positive unconditional cache size: 0, Negative cache size: 97, Negative conditional cache size: 97, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1633.6ms, 66 PlacesBefore, 66 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 852 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 675 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 180, positive: 162, positive conditional: 162, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 144, positive: 67, positive conditional: 67, positive unconditional: 0, negative: 77, negative conditional: 77, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 180, positive: 143, positive conditional: 143, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2355, Positive cache size: 2257, Positive conditional cache size: 2257, Positive unconditional cache size: 0, Negative cache size: 98, Negative conditional cache size: 98, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 658.6ms, 69 PlacesBefore, 67 PlacesAfterwards, 62 TransitionsBefore, 62 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 540 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 270, positive: 252, positive conditional: 252, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 22, positive conditional: 12, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 24, positive: 22, positive conditional: 12, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 24, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 63, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 270, positive: 230, positive conditional: 230, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 24, unknown conditional: 24, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2379, Positive cache size: 2279, Positive conditional cache size: 2279, Positive unconditional cache size: 0, Negative cache size: 100, Negative conditional cache size: 100, Negative unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p2_EBX = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L721] 0 _Bool x$flush_delayed; [L722] 0 int x$mem_tmp; [L723] 0 _Bool x$r_buff0_thd0; [L724] 0 _Bool x$r_buff0_thd1; [L725] 0 _Bool x$r_buff0_thd2; [L726] 0 _Bool x$r_buff0_thd3; [L727] 0 _Bool x$r_buff1_thd0; [L728] 0 _Bool x$r_buff1_thd1; [L729] 0 _Bool x$r_buff1_thd2; [L730] 0 _Bool x$r_buff1_thd3; [L731] 0 _Bool x$read_delayed; [L732] 0 int *x$read_delayed_var; [L733] 0 int x$w_buff0; [L734] 0 _Bool x$w_buff0_used; [L735] 0 int x$w_buff1; [L736] 0 _Bool x$w_buff1_used; [L738] 0 int y = 0; [L739] 0 _Bool weak$$choice0; [L740] 0 _Bool weak$$choice2; [L831] 0 pthread_t t1909; [L832] FCALL, FORK 0 pthread_create(&t1909, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L833] 0 pthread_t t1910; [L834] FCALL, FORK 0 pthread_create(&t1910, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L774] 2 x$w_buff1 = x$w_buff0 [L775] 2 x$w_buff0 = 1 [L776] 2 x$w_buff1_used = x$w_buff0_used [L777] 2 x$w_buff0_used = (_Bool)1 [L19] COND FALSE 2 !(!expression) [L779] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L780] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L781] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L782] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L783] 2 x$r_buff0_thd2 = (_Bool)1 [L786] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L835] 0 pthread_t t1911; [L836] FCALL, FORK 0 pthread_create(&t1911, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L803] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L806] 3 __unbuffered_p2_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L744] 1 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L749] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L750] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L751] 1 x$flush_delayed = weak$$choice2 [L752] 1 x$mem_tmp = x [L753] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L753] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L754] EXPR 1 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L754] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L755] EXPR 1 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L755] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L756] EXPR 1 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L756] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L757] EXPR 1 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L757] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] EXPR 1 weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L758] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L759] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L759] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L760] 1 __unbuffered_p0_EAX = x [L761] EXPR 1 x$flush_delayed ? x$mem_tmp : x [L761] 1 x = x$flush_delayed ? x$mem_tmp : x [L762] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L767] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L789] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L789] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L790] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L790] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L791] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L791] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L792] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L792] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L793] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L793] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L796] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L798] 2 return 0; [L809] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L809] EXPR 3 x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x [L809] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L809] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L810] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L810] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L811] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L811] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L812] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L812] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L813] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L813] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L816] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L838] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L4] COND FALSE 0 !(!cond) [L842] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L842] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L842] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L842] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L843] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L843] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L844] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L844] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L845] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L845] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L846] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L846] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L849] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 96 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 30.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 55634.8ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 7163.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 41568.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 93 SDtfs, 46 SDslu, 41 SDs, 0 SdLazy, 281 SolverSat, 198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 520.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 344.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=416occurred in iteration=10, InterpolantAutomatonStates: 45, 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: 55.4ms SsaConstructionTime, 525.2ms SatisfiabilityAnalysisTime, 1003.0ms InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 864 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...