/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/mix054_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 22:19:08,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 22:19:08,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 22:19:08,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 22:19:08,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 22:19:08,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 22:19:08,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 22:19:08,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 22:19:08,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 22:19:08,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 22:19:08,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 22:19:08,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 22:19:08,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 22:19:08,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 22:19:08,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 22:19:08,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 22:19:08,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 22:19:08,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 22:19:08,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 22:19:08,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 22:19:08,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 22:19:08,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 22:19:08,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 22:19:08,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 22:19:08,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 22:19:08,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 22:19:08,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 22:19:08,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 22:19:08,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 22:19:08,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 22:19:08,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 22:19:08,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 22:19:08,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 22:19:08,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 22:19:08,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 22:19:08,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 22:19:08,536 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 22:19:08,593 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 22:19:08,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 22:19:08,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 22:19:08,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 22:19:08,597 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 22:19:08,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 22:19:08,598 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 22:19:08,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 22:19:08,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 22:19:08,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 22:19:08,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 22:19:08,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 22:19:08,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 22:19:08,600 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 22:19:08,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 22:19:08,601 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 22:19:08,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 22:19:08,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 22:19:08,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 22:19:08,602 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 22:19:08,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 22:19:08,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:19:08,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 22:19:08,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 22:19:08,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 22:19:08,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 22:19:08,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 22:19:08,604 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 22:19:08,604 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 22:19:08,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 22:19:08,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 22:19:08,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 22:19:09,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 22:19:09,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 22:19:09,022 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 22:19:09,022 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 22:19:09,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix054_rmo.opt.i [2021-04-28 22:19:09,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c57116a/e8d4835684ac4ccaa6dd1d87707020f3/FLAGcc7c357fd [2021-04-28 22:19:09,848 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 22:19:09,849 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix054_rmo.opt.i [2021-04-28 22:19:09,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c57116a/e8d4835684ac4ccaa6dd1d87707020f3/FLAGcc7c357fd [2021-04-28 22:19:10,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c57116a/e8d4835684ac4ccaa6dd1d87707020f3 [2021-04-28 22:19:10,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 22:19:10,137 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 22:19:10,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 22:19:10,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 22:19:10,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 22:19:10,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:19:10" (1/1) ... [2021-04-28 22:19:10,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bed2992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:19:10, skipping insertion in model container [2021-04-28 22:19:10,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:19:10" (1/1) ... [2021-04-28 22:19:10,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 22:19:10,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 22:19:10,363 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/mix054_rmo.opt.i[948,961] [2021-04-28 22:19:10,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:19:10,569 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 22:19:10,584 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/mix054_rmo.opt.i[948,961] [2021-04-28 22:19:10,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:19:10,785 INFO L208 MainTranslator]: Completed translation [2021-04-28 22:19:10,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:19:10 WrapperNode [2021-04-28 22:19:10,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 22:19:10,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 22:19:10,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 22:19:10,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 22:19:10,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:19:10" (1/1) ... [2021-04-28 22:19:10,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:19:10" (1/1) ... [2021-04-28 22:19:10,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 22:19:10,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 22:19:10,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 22:19:10,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 22:19:10,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:19:10" (1/1) ... [2021-04-28 22:19:10,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:19:10" (1/1) ... [2021-04-28 22:19:10,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:19:10" (1/1) ... [2021-04-28 22:19:10,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:19:10" (1/1) ... [2021-04-28 22:19:10,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:19:10" (1/1) ... [2021-04-28 22:19:10,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:19:10" (1/1) ... [2021-04-28 22:19:10,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:19:10" (1/1) ... [2021-04-28 22:19:10,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 22:19:10,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 22:19:10,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 22:19:10,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 22:19:10,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:19:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:19:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 22:19:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 22:19:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 22:19:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 22:19:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 22:19:11,044 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 22:19:11,044 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 22:19:11,044 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 22:19:11,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 22:19:11,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 22:19:11,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 22:19:11,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 22:19:11,046 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 22:19:13,309 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 22:19:13,309 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 22:19:13,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:19:13 BoogieIcfgContainer [2021-04-28 22:19:13,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 22:19:13,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 22:19:13,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 22:19:13,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 22:19:13,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 10:19:10" (1/3) ... [2021-04-28 22:19:13,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2281aff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:19:13, skipping insertion in model container [2021-04-28 22:19:13,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:19:10" (2/3) ... [2021-04-28 22:19:13,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2281aff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:19:13, skipping insertion in model container [2021-04-28 22:19:13,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:19:13" (3/3) ... [2021-04-28 22:19:13,321 INFO L111 eAbstractionObserver]: Analyzing ICFG mix054_rmo.opt.i [2021-04-28 22:19:13,328 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 22:19:13,334 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 22:19:13,335 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 22:19:13,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,368 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,368 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,368 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,368 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,369 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,369 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,369 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,369 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,372 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,372 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,372 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,374 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,374 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,374 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,374 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,375 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,375 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,375 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,375 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,376 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,376 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,376 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,376 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,376 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,377 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,377 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,377 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,378 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,378 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,378 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,378 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,378 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,378 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,379 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,379 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,379 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,380 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,380 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,380 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,380 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,380 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,385 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,385 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,385 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,385 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,385 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,386 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,386 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,386 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,388 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,388 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,389 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,389 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,389 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,389 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,390 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,390 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,390 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,390 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,390 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,391 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:19:13,392 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 22:19:13,416 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-28 22:19:13,442 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 22:19:13,443 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 22:19:13,443 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 22:19:13,443 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 22:19:13,443 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 22:19:13,443 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 22:19:13,444 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 22:19:13,444 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 22:19:13,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 170 flow [2021-04-28 22:19:13,500 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2021-04-28 22:19:13,500 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:19:13,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2021-04-28 22:19:13,505 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 80 transitions, 170 flow [2021-04-28 22:19:13,511 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 78 transitions, 162 flow [2021-04-28 22:19:13,512 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:19:13,529 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 78 transitions, 162 flow [2021-04-28 22:19:13,533 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 78 transitions, 162 flow [2021-04-28 22:19:13,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 78 transitions, 162 flow [2021-04-28 22:19:13,561 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2021-04-28 22:19:13,561 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:19:13,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2021-04-28 22:19:13,565 INFO L146 LiptonReduction]: Number of co-enabled transitions 918 [2021-04-28 22:19:14,723 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 224 DAG size of output: 184 [2021-04-28 22:19:15,232 WARN L205 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-04-28 22:19:17,485 WARN L205 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 308 DAG size of output: 264 [2021-04-28 22:19:18,504 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 261 [2021-04-28 22:19:21,151 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:19:21,270 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 22:19:21,838 WARN L205 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2021-04-28 22:19:22,063 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:19:22,791 WARN L205 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-04-28 22:19:23,316 WARN L205 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-04-28 22:19:25,274 WARN L205 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 261 DAG size of output: 260 [2021-04-28 22:19:26,308 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 260 [2021-04-28 22:19:27,346 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-04-28 22:19:27,879 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:19:28,968 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:19:30,056 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:19:30,603 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-28 22:19:31,165 WARN L205 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-28 22:19:32,309 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 263 [2021-04-28 22:19:33,432 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 263 [2021-04-28 22:19:35,708 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:19:36,288 WARN L205 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:19:37,490 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-28 22:19:38,669 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-28 22:19:39,236 WARN L205 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-04-28 22:19:39,810 WARN L205 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-04-28 22:19:40,988 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 261 [2021-04-28 22:19:42,154 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 261 [2021-04-28 22:19:42,767 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:19:43,385 WARN L205 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:19:44,642 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-28 22:19:45,875 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-28 22:19:46,508 WARN L205 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-28 22:19:47,143 WARN L205 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-28 22:19:48,427 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 263 [2021-04-28 22:19:49,696 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 263 [2021-04-28 22:19:51,773 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 22:19:51,962 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 22:19:52,158 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 22:19:52,359 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 22:19:52,552 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 22:19:52,738 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 22:19:52,943 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 22:19:53,153 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 22:19:53,906 WARN L205 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:19:54,584 WARN L205 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:19:56,024 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-28 22:19:57,400 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-28 22:19:58,691 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 184 DAG size of output: 183 [2021-04-28 22:19:59,336 WARN L205 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-04-28 22:20:00,674 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 263 [2021-04-28 22:20:02,024 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 263 [2021-04-28 22:20:03,414 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 182 DAG size of output: 181 [2021-04-28 22:20:04,105 WARN L205 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2021-04-28 22:20:05,559 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 261 [2021-04-28 22:20:07,106 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 261 [2021-04-28 22:20:08,357 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 22:20:08,635 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 22:20:08,895 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 22:20:09,127 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 22:20:09,416 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 22:20:09,726 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 22:20:10,031 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 22:20:10,332 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 22:20:10,655 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 22:20:10,761 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:20:10,995 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 22:20:11,101 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:20:13,033 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 22:20:13,149 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:20:13,397 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 22:20:13,509 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:20:13,746 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 22:20:13,850 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:20:14,082 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 22:20:14,339 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 22:20:14,569 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 22:20:14,896 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-04-28 22:20:15,025 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:20:15,302 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-04-28 22:20:15,424 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:20:15,618 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 22:20:15,889 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 22:20:16,216 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 22:20:16,327 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:20:16,596 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 22:20:16,712 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:20:16,946 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:20:17,155 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:20:17,354 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:20:17,545 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:20:17,683 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:20:17,820 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:20:17,955 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:20:18,101 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:20:18,307 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:20:18,503 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:20:18,697 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:20:18,886 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:20:19,097 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:20:19,310 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:20:19,517 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:20:19,733 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:20:19,866 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:20:19,996 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:20:20,138 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:20:20,284 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:20:20,454 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:20:20,626 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:20:20,797 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:20:20,974 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:20:21,158 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:20:21,347 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:20:21,529 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:20:21,711 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:20:21,857 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:20:21,995 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:20:22,128 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:20:22,276 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:20:22,496 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:20:22,722 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:20:22,934 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:20:23,146 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:20:23,722 WARN L205 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2021-04-28 22:20:23,998 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-04-28 22:20:24,616 WARN L205 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2021-04-28 22:20:24,879 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-04-28 22:20:25,064 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:20:25,245 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:20:25,432 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:20:25,611 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:20:25,728 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:20:25,850 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:20:25,966 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:20:26,083 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:20:26,226 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:20:26,354 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:20:26,482 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:20:26,621 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:20:26,841 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:20:27,070 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:20:27,276 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:20:27,480 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:20:27,655 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:20:27,810 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:20:27,979 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:20:28,145 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:20:28,313 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:20:28,480 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:20:28,660 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:20:28,833 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:20:29,411 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2021-04-28 22:20:29,686 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:20:30,294 WARN L205 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2021-04-28 22:20:30,573 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:20:30,730 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:20:30,892 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:20:31,046 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:20:31,199 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:20:31,253 INFO L158 LiptonReduction]: Checked pairs total: 8174 [2021-04-28 22:20:31,253 INFO L160 LiptonReduction]: Total number of compositions: 175 [2021-04-28 22:20:31,258 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77747 [2021-04-28 22:20:31,278 INFO L129 PetriNetUnfolder]: 0/54 cut-off events. [2021-04-28 22:20:31,279 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:20:31,279 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:20:31,280 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-28 22:20:31,280 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:20:31,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:20:31,288 INFO L82 PathProgramCache]: Analyzing trace with hash 973747081, now seen corresponding path program 1 times [2021-04-28 22:20:31,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:20:31,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476502551] [2021-04-28 22:20:31,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:20:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:20:31,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:20:31,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:20:31,573 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 22:20:31,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476502551] [2021-04-28 22:20:31,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:20:31,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:20:31,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978451070] [2021-04-28 22:20:31,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:20:31,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:20:31,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:20:31,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:20:31,607 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 255 [2021-04-28 22:20:31,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 100 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 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 22:20:31,616 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:20:31,616 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 255 [2021-04-28 22:20:31,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:20:32,015 INFO L129 PetriNetUnfolder]: 107/415 cut-off events. [2021-04-28 22:20:32,016 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:20:32,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 415 events. 107/415 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 3092 event pairs, 15 based on Foata normal form. 6/207 useless extension candidates. Maximal degree in co-relation 576. Up to 157 conditions per place. [2021-04-28 22:20:32,020 INFO L132 encePairwiseOnDemand]: 239/255 looper letters, 7 selfloop transitions, 2 changer transitions 78/111 dead transitions. [2021-04-28 22:20:32,020 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 111 transitions, 316 flow [2021-04-28 22:20:32,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:20:32,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:20:32,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 625 transitions. [2021-04-28 22:20:32,042 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8169934640522876 [2021-04-28 22:20:32,043 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 625 transitions. [2021-04-28 22:20:32,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 625 transitions. [2021-04-28 22:20:32,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:20:32,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 625 transitions. [2021-04-28 22:20:32,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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 22:20:32,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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 22:20:32,066 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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 22:20:32,069 INFO L185 Difference]: Start difference. First operand has 105 places, 100 transitions, 206 flow. Second operand 3 states and 625 transitions. [2021-04-28 22:20:32,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 111 transitions, 316 flow [2021-04-28 22:20:32,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 111 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:20:32,077 INFO L241 Difference]: Finished difference. Result has 102 places, 30 transitions, 68 flow [2021-04-28 22:20:32,079 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=102, PETRI_TRANSITIONS=30} [2021-04-28 22:20:32,080 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, -3 predicate places. [2021-04-28 22:20:32,080 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:20:32,081 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 30 transitions, 68 flow [2021-04-28 22:20:32,081 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 30 transitions, 68 flow [2021-04-28 22:20:32,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 68 flow [2021-04-28 22:20:32,087 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-04-28 22:20:32,087 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:20:32,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 30 events. 0/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 107 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 22:20:32,088 INFO L146 LiptonReduction]: Number of co-enabled transitions 462 [2021-04-28 22:20:32,180 INFO L158 LiptonReduction]: Checked pairs total: 418 [2021-04-28 22:20:32,181 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:20:32,181 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 101 [2021-04-28 22:20:32,182 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 68 flow [2021-04-28 22:20:32,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 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 22:20:32,183 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:20:32,183 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:20:32,184 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 22:20:32,184 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:20:32,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:20:32,185 INFO L82 PathProgramCache]: Analyzing trace with hash -531826277, now seen corresponding path program 1 times [2021-04-28 22:20:32,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:20:32,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971320791] [2021-04-28 22:20:32,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:20:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:20:32,372 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-04-28 22:20:32,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-04-28 22:20:32,446 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-04-28 22:20:32,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-28 22:20:32,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:20:32,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:20:32,535 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 22:20:32,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971320791] [2021-04-28 22:20:32,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:20:32,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:20:32,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793427402] [2021-04-28 22:20:32,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:20:32,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:20:32,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:20:32,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:20:32,542 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 255 [2021-04-28 22:20:32,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 68 flow. Second operand has 5 states, 5 states have (on average 125.8) internal successors, (629), 5 states have internal predecessors, (629), 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 22:20:32,543 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:20:32,543 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 255 [2021-04-28 22:20:32,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:20:32,829 INFO L129 PetriNetUnfolder]: 612/1068 cut-off events. [2021-04-28 22:20:32,829 INFO L130 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2021-04-28 22:20:32,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2136 conditions, 1068 events. 612/1068 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5863 event pairs, 32 based on Foata normal form. 6/559 useless extension candidates. Maximal degree in co-relation 2127. Up to 899 conditions per place. [2021-04-28 22:20:32,836 INFO L132 encePairwiseOnDemand]: 250/255 looper letters, 20 selfloop transitions, 4 changer transitions 20/53 dead transitions. [2021-04-28 22:20:32,836 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 53 transitions, 204 flow [2021-04-28 22:20:32,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:20:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:20:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 544 transitions. [2021-04-28 22:20:32,841 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2021-04-28 22:20:32,841 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 544 transitions. [2021-04-28 22:20:32,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 544 transitions. [2021-04-28 22:20:32,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:20:32,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 544 transitions. [2021-04-28 22:20:32,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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 22:20:32,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 255.0) internal successors, (1275), 5 states have internal predecessors, (1275), 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 22:20:32,849 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 255.0) internal successors, (1275), 5 states have internal predecessors, (1275), 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 22:20:32,849 INFO L185 Difference]: Start difference. First operand has 37 places, 30 transitions, 68 flow. Second operand 4 states and 544 transitions. [2021-04-28 22:20:32,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 53 transitions, 204 flow [2021-04-28 22:20:32,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 53 transitions, 198 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:20:32,851 INFO L241 Difference]: Finished difference. Result has 40 places, 25 transitions, 73 flow [2021-04-28 22:20:32,852 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=73, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2021-04-28 22:20:32,852 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, -65 predicate places. [2021-04-28 22:20:32,852 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:20:32,853 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 25 transitions, 73 flow [2021-04-28 22:20:32,853 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 25 transitions, 73 flow [2021-04-28 22:20:32,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 25 transitions, 73 flow [2021-04-28 22:20:32,859 INFO L129 PetriNetUnfolder]: 2/35 cut-off events. [2021-04-28 22:20:32,860 INFO L130 PetriNetUnfolder]: For 3/4 co-relation queries the response was YES. [2021-04-28 22:20:32,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 35 events. 2/35 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 94 event pairs, 1 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 47. Up to 7 conditions per place. [2021-04-28 22:20:32,861 INFO L146 LiptonReduction]: Number of co-enabled transitions 274 [2021-04-28 22:20:33,097 INFO L158 LiptonReduction]: Checked pairs total: 256 [2021-04-28 22:20:33,098 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:20:33,098 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 246 [2021-04-28 22:20:33,099 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 73 flow [2021-04-28 22:20:33,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 125.8) internal successors, (629), 5 states have internal predecessors, (629), 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 22:20:33,100 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:20:33,100 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:20:33,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 22:20:33,101 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:20:33,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:20:33,101 INFO L82 PathProgramCache]: Analyzing trace with hash 693252978, now seen corresponding path program 1 times [2021-04-28 22:20:33,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:20:33,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074951240] [2021-04-28 22:20:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:20:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:20:33,277 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-04-28 22:20:33,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-28 22:20:33,361 INFO L142 QuantifierPusher]: treesize reduction 30, result has 25.0 percent of original size [2021-04-28 22:20:33,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:20:33,387 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.9 percent of original size [2021-04-28 22:20:33,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-04-28 22:20:33,480 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 22:20:33,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074951240] [2021-04-28 22:20:33,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:20:33,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:20:33,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399541367] [2021-04-28 22:20:33,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:20:33,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:20:33,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:20:33,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:20:33,485 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 255 [2021-04-28 22:20:33,486 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 147.8) internal successors, (739), 5 states have internal predecessors, (739), 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 22:20:33,486 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:20:33,487 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 255 [2021-04-28 22:20:33,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:20:33,702 INFO L129 PetriNetUnfolder]: 21/84 cut-off events. [2021-04-28 22:20:33,703 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2021-04-28 22:20:33,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 84 events. 21/84 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 357 event pairs, 13 based on Foata normal form. 1/62 useless extension candidates. Maximal degree in co-relation 158. Up to 40 conditions per place. [2021-04-28 22:20:33,704 INFO L132 encePairwiseOnDemand]: 250/255 looper letters, 8 selfloop transitions, 5 changer transitions 0/29 dead transitions. [2021-04-28 22:20:33,704 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 29 transitions, 109 flow [2021-04-28 22:20:33,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:20:33,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:20:33,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 602 transitions. [2021-04-28 22:20:33,710 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5901960784313726 [2021-04-28 22:20:33,710 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 602 transitions. [2021-04-28 22:20:33,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 602 transitions. [2021-04-28 22:20:33,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:20:33,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 602 transitions. [2021-04-28 22:20:33,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 150.5) internal successors, (602), 4 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:20:33,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 255.0) internal successors, (1275), 5 states have internal predecessors, (1275), 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 22:20:33,717 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 255.0) internal successors, (1275), 5 states have internal predecessors, (1275), 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 22:20:33,717 INFO L185 Difference]: Start difference. First operand has 33 places, 25 transitions, 73 flow. Second operand 4 states and 602 transitions. [2021-04-28 22:20:33,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 29 transitions, 109 flow [2021-04-28 22:20:33,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 29 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:20:33,719 INFO L241 Difference]: Finished difference. Result has 36 places, 27 transitions, 95 flow [2021-04-28 22:20:33,719 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=95, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2021-04-28 22:20:33,720 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, -69 predicate places. [2021-04-28 22:20:33,720 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:20:33,720 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 27 transitions, 95 flow [2021-04-28 22:20:33,721 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 27 transitions, 95 flow [2021-04-28 22:20:33,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 27 transitions, 95 flow [2021-04-28 22:20:33,728 INFO L129 PetriNetUnfolder]: 4/35 cut-off events. [2021-04-28 22:20:33,728 INFO L130 PetriNetUnfolder]: For 18/20 co-relation queries the response was YES. [2021-04-28 22:20:33,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 35 events. 4/35 cut-off events. For 18/20 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 96 event pairs, 1 based on Foata normal form. 1/27 useless extension candidates. Maximal degree in co-relation 61. Up to 10 conditions per place. [2021-04-28 22:20:33,729 INFO L146 LiptonReduction]: Number of co-enabled transitions 286 [2021-04-28 22:20:33,783 INFO L158 LiptonReduction]: Checked pairs total: 204 [2021-04-28 22:20:33,783 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:20:33,783 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 63 [2021-04-28 22:20:33,784 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 95 flow [2021-04-28 22:20:33,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 147.8) internal successors, (739), 5 states have internal predecessors, (739), 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 22:20:33,785 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:20:33,785 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:20:33,786 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 22:20:33,786 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:20:33,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:20:33,786 INFO L82 PathProgramCache]: Analyzing trace with hash 675006377, now seen corresponding path program 1 times [2021-04-28 22:20:33,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:20:33,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501948583] [2021-04-28 22:20:33,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:20:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:20:33,976 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-04-28 22:20:33,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:20:34,004 INFO L142 QuantifierPusher]: treesize reduction 30, result has 34.8 percent of original size [2021-04-28 22:20:34,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 22:20:34,034 INFO L142 QuantifierPusher]: treesize reduction 9, result has 81.6 percent of original size [2021-04-28 22:20:34,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-04-28 22:20:34,108 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.6 percent of original size [2021-04-28 22:20:34,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-04-28 22:20:34,181 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 22:20:34,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501948583] [2021-04-28 22:20:34,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:20:34,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:20:34,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810082725] [2021-04-28 22:20:34,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:20:34,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:20:34,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:20:34,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:20:34,185 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 255 [2021-04-28 22:20:34,187 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 95 flow. Second operand has 6 states, 6 states have (on average 152.83333333333334) internal successors, (917), 6 states have internal predecessors, (917), 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 22:20:34,187 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:20:34,187 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 255 [2021-04-28 22:20:34,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:20:34,402 INFO L129 PetriNetUnfolder]: 21/88 cut-off events. [2021-04-28 22:20:34,402 INFO L130 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2021-04-28 22:20:34,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 88 events. 21/88 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 378 event pairs, 2 based on Foata normal form. 2/67 useless extension candidates. Maximal degree in co-relation 183. Up to 26 conditions per place. [2021-04-28 22:20:34,404 INFO L132 encePairwiseOnDemand]: 248/255 looper letters, 9 selfloop transitions, 10 changer transitions 0/35 dead transitions. [2021-04-28 22:20:34,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 35 transitions, 153 flow [2021-04-28 22:20:34,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:20:34,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:20:34,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 778 transitions. [2021-04-28 22:20:34,409 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6101960784313726 [2021-04-28 22:20:34,409 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 778 transitions. [2021-04-28 22:20:34,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 778 transitions. [2021-04-28 22:20:34,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:20:34,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 778 transitions. [2021-04-28 22:20:34,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 155.6) internal successors, (778), 5 states have internal predecessors, (778), 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 22:20:34,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 255.0) internal successors, (1530), 6 states have internal predecessors, (1530), 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 22:20:34,419 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 255.0) internal successors, (1530), 6 states have internal predecessors, (1530), 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 22:20:34,419 INFO L185 Difference]: Start difference. First operand has 36 places, 27 transitions, 95 flow. Second operand 5 states and 778 transitions. [2021-04-28 22:20:34,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 35 transitions, 153 flow [2021-04-28 22:20:34,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 35 transitions, 144 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 22:20:34,422 INFO L241 Difference]: Finished difference. Result has 40 places, 32 transitions, 140 flow [2021-04-28 22:20:34,422 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=140, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2021-04-28 22:20:34,422 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, -65 predicate places. [2021-04-28 22:20:34,423 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:20:34,423 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 32 transitions, 140 flow [2021-04-28 22:20:34,423 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 32 transitions, 140 flow [2021-04-28 22:20:34,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 32 transitions, 140 flow [2021-04-28 22:20:34,437 INFO L129 PetriNetUnfolder]: 14/81 cut-off events. [2021-04-28 22:20:34,438 INFO L130 PetriNetUnfolder]: For 64/66 co-relation queries the response was YES. [2021-04-28 22:20:34,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 81 events. 14/81 cut-off events. For 64/66 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 356 event pairs, 2 based on Foata normal form. 2/59 useless extension candidates. Maximal degree in co-relation 166. Up to 19 conditions per place. [2021-04-28 22:20:34,439 INFO L146 LiptonReduction]: Number of co-enabled transitions 314 [2021-04-28 22:20:34,442 INFO L158 LiptonReduction]: Checked pairs total: 122 [2021-04-28 22:20:34,442 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:20:34,443 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-04-28 22:20:34,444 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 140 flow [2021-04-28 22:20:34,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 152.83333333333334) internal successors, (917), 6 states have internal predecessors, (917), 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 22:20:34,445 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:20:34,445 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:20:34,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 22:20:34,445 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:20:34,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:20:34,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1712506223, now seen corresponding path program 1 times [2021-04-28 22:20:34,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:20:34,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254249359] [2021-04-28 22:20:34,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:20:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:20:34,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:20:34,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:20:34,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:20:34,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:20:34,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:20:34,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:20:34,548 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 22:20:34,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254249359] [2021-04-28 22:20:34,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:20:34,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:20:34,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391787924] [2021-04-28 22:20:34,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:20:34,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:20:34,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:20:34,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:20:34,552 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 255 [2021-04-28 22:20:34,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 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 22:20:34,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:20:34,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 255 [2021-04-28 22:20:34,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:20:34,684 INFO L129 PetriNetUnfolder]: 70/212 cut-off events. [2021-04-28 22:20:34,685 INFO L130 PetriNetUnfolder]: For 165/176 co-relation queries the response was YES. [2021-04-28 22:20:34,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 212 events. 70/212 cut-off events. For 165/176 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1165 event pairs, 21 based on Foata normal form. 33/162 useless extension candidates. Maximal degree in co-relation 511. Up to 127 conditions per place. [2021-04-28 22:20:34,687 INFO L132 encePairwiseOnDemand]: 246/255 looper letters, 8 selfloop transitions, 14 changer transitions 7/50 dead transitions. [2021-04-28 22:20:34,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 50 transitions, 229 flow [2021-04-28 22:20:34,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:20:34,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:20:34,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 865 transitions. [2021-04-28 22:20:34,693 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6784313725490196 [2021-04-28 22:20:34,693 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 865 transitions. [2021-04-28 22:20:34,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 865 transitions. [2021-04-28 22:20:34,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:20:34,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 865 transitions. [2021-04-28 22:20:34,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 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 22:20:34,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 255.0) internal successors, (1530), 6 states have internal predecessors, (1530), 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 22:20:34,702 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 255.0) internal successors, (1530), 6 states have internal predecessors, (1530), 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 22:20:34,702 INFO L185 Difference]: Start difference. First operand has 40 places, 32 transitions, 140 flow. Second operand 5 states and 865 transitions. [2021-04-28 22:20:34,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 50 transitions, 229 flow [2021-04-28 22:20:34,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 50 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:20:34,706 INFO L241 Difference]: Finished difference. Result has 46 places, 43 transitions, 222 flow [2021-04-28 22:20:34,707 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=222, PETRI_PLACES=46, PETRI_TRANSITIONS=43} [2021-04-28 22:20:34,707 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, -59 predicate places. [2021-04-28 22:20:34,707 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:20:34,707 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 43 transitions, 222 flow [2021-04-28 22:20:34,708 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 43 transitions, 222 flow [2021-04-28 22:20:34,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 43 transitions, 222 flow [2021-04-28 22:20:34,732 INFO L129 PetriNetUnfolder]: 25/139 cut-off events. [2021-04-28 22:20:34,732 INFO L130 PetriNetUnfolder]: For 185/196 co-relation queries the response was YES. [2021-04-28 22:20:34,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 139 events. 25/139 cut-off events. For 185/196 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 827 event pairs, 3 based on Foata normal form. 5/99 useless extension candidates. Maximal degree in co-relation 399. Up to 43 conditions per place. [2021-04-28 22:20:34,735 INFO L146 LiptonReduction]: Number of co-enabled transitions 350 [2021-04-28 22:20:34,739 INFO L158 LiptonReduction]: Checked pairs total: 99 [2021-04-28 22:20:34,739 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:20:34,740 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-04-28 22:20:34,741 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 43 transitions, 222 flow [2021-04-28 22:20:34,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 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 22:20:34,741 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:20:34,741 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:20:34,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 22:20:34,742 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:20:34,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:20:34,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1643260235, now seen corresponding path program 1 times [2021-04-28 22:20:34,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:20:34,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465263813] [2021-04-28 22:20:34,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:20:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:20:34,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:20:34,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:20:34,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:20:34,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:20:34,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:20:34,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:20:34,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:20:34,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:20:34,851 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 22:20:34,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465263813] [2021-04-28 22:20:34,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:20:34,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:20:34,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619818865] [2021-04-28 22:20:34,852 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:20:34,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:20:34,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:20:34,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:20:34,854 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 255 [2021-04-28 22:20:34,856 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 43 transitions, 222 flow. Second operand has 5 states, 5 states have (on average 167.8) internal successors, (839), 5 states have internal predecessors, (839), 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 22:20:34,856 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:20:34,856 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 255 [2021-04-28 22:20:34,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:20:35,038 INFO L129 PetriNetUnfolder]: 22/133 cut-off events. [2021-04-28 22:20:35,038 INFO L130 PetriNetUnfolder]: For 253/300 co-relation queries the response was YES. [2021-04-28 22:20:35,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 133 events. 22/133 cut-off events. For 253/300 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 744 event pairs, 0 based on Foata normal form. 45/130 useless extension candidates. Maximal degree in co-relation 445. Up to 52 conditions per place. [2021-04-28 22:20:35,040 INFO L132 encePairwiseOnDemand]: 246/255 looper letters, 2 selfloop transitions, 21 changer transitions 7/50 dead transitions. [2021-04-28 22:20:35,040 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 50 transitions, 308 flow [2021-04-28 22:20:35,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 22:20:35,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 22:20:35,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1200 transitions. [2021-04-28 22:20:35,046 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6722689075630253 [2021-04-28 22:20:35,046 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1200 transitions. [2021-04-28 22:20:35,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1200 transitions. [2021-04-28 22:20:35,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:20:35,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1200 transitions. [2021-04-28 22:20:35,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 171.42857142857142) internal successors, (1200), 7 states have internal predecessors, (1200), 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 22:20:35,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 255.0) internal successors, (2040), 8 states have internal predecessors, (2040), 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 22:20:35,057 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 255.0) internal successors, (2040), 8 states have internal predecessors, (2040), 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 22:20:35,057 INFO L185 Difference]: Start difference. First operand has 45 places, 43 transitions, 222 flow. Second operand 7 states and 1200 transitions. [2021-04-28 22:20:35,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 50 transitions, 308 flow [2021-04-28 22:20:35,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 50 transitions, 297 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-04-28 22:20:35,061 INFO L241 Difference]: Finished difference. Result has 53 places, 43 transitions, 281 flow [2021-04-28 22:20:35,062 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=281, PETRI_PLACES=53, PETRI_TRANSITIONS=43} [2021-04-28 22:20:35,062 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, -52 predicate places. [2021-04-28 22:20:35,062 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:20:35,062 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 43 transitions, 281 flow [2021-04-28 22:20:35,062 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 43 transitions, 281 flow [2021-04-28 22:20:35,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 281 flow [2021-04-28 22:20:35,081 INFO L129 PetriNetUnfolder]: 13/105 cut-off events. [2021-04-28 22:20:35,081 INFO L130 PetriNetUnfolder]: For 176/188 co-relation queries the response was YES. [2021-04-28 22:20:35,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 105 events. 13/105 cut-off events. For 176/188 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 539 event pairs, 0 based on Foata normal form. 3/77 useless extension candidates. Maximal degree in co-relation 358. Up to 40 conditions per place. [2021-04-28 22:20:35,083 INFO L146 LiptonReduction]: Number of co-enabled transitions 264 [2021-04-28 22:20:35,088 INFO L158 LiptonReduction]: Checked pairs total: 97 [2021-04-28 22:20:35,088 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:20:35,088 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-04-28 22:20:35,089 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 281 flow [2021-04-28 22:20:35,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 167.8) internal successors, (839), 5 states have internal predecessors, (839), 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 22:20:35,090 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:20:35,090 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:20:35,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 22:20:35,091 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:20:35,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:20:35,091 INFO L82 PathProgramCache]: Analyzing trace with hash 418532671, now seen corresponding path program 1 times [2021-04-28 22:20:35,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:20:35,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091469611] [2021-04-28 22:20:35,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:20:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:20:35,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:20:35,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:20:35,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:20:35,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:20:35,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:20:35,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 22:20:35,219 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.6 percent of original size [2021-04-28 22:20:35,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-04-28 22:20:35,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:20:35,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 22:20:35,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:20:35,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 22:20:35,321 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 22:20:35,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091469611] [2021-04-28 22:20:35,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:20:35,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 22:20:35,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280890088] [2021-04-28 22:20:35,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-28 22:20:35,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:20:35,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-28 22:20:35,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-04-28 22:20:35,325 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 255 [2021-04-28 22:20:35,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 281 flow. Second operand has 8 states, 8 states have (on average 130.125) internal successors, (1041), 8 states have internal predecessors, (1041), 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 22:20:35,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:20:35,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 255 [2021-04-28 22:20:35,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:20:35,644 INFO L129 PetriNetUnfolder]: 30/217 cut-off events. [2021-04-28 22:20:35,644 INFO L130 PetriNetUnfolder]: For 540/598 co-relation queries the response was YES. [2021-04-28 22:20:35,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 863 conditions, 217 events. 30/217 cut-off events. For 540/598 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1526 event pairs, 0 based on Foata normal form. 34/182 useless extension candidates. Maximal degree in co-relation 840. Up to 85 conditions per place. [2021-04-28 22:20:35,646 INFO L132 encePairwiseOnDemand]: 247/255 looper letters, 11 selfloop transitions, 3 changer transitions 23/60 dead transitions. [2021-04-28 22:20:35,647 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 60 transitions, 440 flow [2021-04-28 22:20:35,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 22:20:35,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 22:20:35,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1186 transitions. [2021-04-28 22:20:35,654 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5167755991285403 [2021-04-28 22:20:35,654 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1186 transitions. [2021-04-28 22:20:35,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1186 transitions. [2021-04-28 22:20:35,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:20:35,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1186 transitions. [2021-04-28 22:20:35,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 131.77777777777777) internal successors, (1186), 9 states have internal predecessors, (1186), 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 22:20:35,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 255.0) internal successors, (2550), 10 states have internal predecessors, (2550), 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 22:20:35,665 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 255.0) internal successors, (2550), 10 states have internal predecessors, (2550), 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 22:20:35,665 INFO L185 Difference]: Start difference. First operand has 51 places, 43 transitions, 281 flow. Second operand 9 states and 1186 transitions. [2021-04-28 22:20:35,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 60 transitions, 440 flow [2021-04-28 22:20:35,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 60 transitions, 383 flow, removed 11 selfloop flow, removed 6 redundant places. [2021-04-28 22:20:35,670 INFO L241 Difference]: Finished difference. Result has 57 places, 36 transitions, 198 flow [2021-04-28 22:20:35,671 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=198, PETRI_PLACES=57, PETRI_TRANSITIONS=36} [2021-04-28 22:20:35,671 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, -48 predicate places. [2021-04-28 22:20:35,671 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:20:35,671 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 36 transitions, 198 flow [2021-04-28 22:20:35,672 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 36 transitions, 198 flow [2021-04-28 22:20:35,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 36 transitions, 198 flow [2021-04-28 22:20:35,688 INFO L129 PetriNetUnfolder]: 11/92 cut-off events. [2021-04-28 22:20:35,688 INFO L130 PetriNetUnfolder]: For 85/104 co-relation queries the response was YES. [2021-04-28 22:20:35,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 92 events. 11/92 cut-off events. For 85/104 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 405 event pairs, 0 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 247. Up to 40 conditions per place. [2021-04-28 22:20:35,689 INFO L146 LiptonReduction]: Number of co-enabled transitions 160 [2021-04-28 22:20:35,802 INFO L158 LiptonReduction]: Checked pairs total: 22 [2021-04-28 22:20:35,802 INFO L160 LiptonReduction]: Total number of compositions: 2 [2021-04-28 22:20:35,802 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 131 [2021-04-28 22:20:35,804 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 36 transitions, 204 flow [2021-04-28 22:20:35,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 130.125) internal successors, (1041), 8 states have internal predecessors, (1041), 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 22:20:35,804 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:20:35,805 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:20:35,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 22:20:35,805 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:20:35,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:20:35,805 INFO L82 PathProgramCache]: Analyzing trace with hash -2128712084, now seen corresponding path program 1 times [2021-04-28 22:20:35,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:20:35,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321010295] [2021-04-28 22:20:35,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:20:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 22:20:35,867 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 22:20:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 22:20:35,926 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 22:20:35,996 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 22:20:35,996 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 22:20:35,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 22:20:36,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 10:20:36 BasicIcfg [2021-04-28 22:20:36,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 22:20:36,126 INFO L168 Benchmark]: Toolchain (without parser) took 86032.10 ms. Allocated memory was 302.0 MB in the beginning and 635.4 MB in the end (delta: 333.4 MB). Free memory was 276.6 MB in the beginning and 338.1 MB in the end (delta: -61.5 MB). Peak memory consumption was 273.9 MB. Max. memory is 16.0 GB. [2021-04-28 22:20:36,127 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 22:20:36,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.35 ms. Allocated memory is still 302.0 MB. Free memory was 273.2 MB in the beginning and 278.8 MB in the end (delta: -5.5 MB). Peak memory consumption was 35.4 MB. Max. memory is 16.0 GB. [2021-04-28 22:20:36,127 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.08 ms. Allocated memory is still 302.0 MB. Free memory was 278.8 MB in the beginning and 275.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-04-28 22:20:36,128 INFO L168 Benchmark]: Boogie Preprocessor took 38.72 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 273.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 22:20:36,128 INFO L168 Benchmark]: RCFGBuilder took 2375.29 ms. Allocated memory was 302.0 MB in the beginning and 367.0 MB in the end (delta: 65.0 MB). Free memory was 273.5 MB in the beginning and 312.1 MB in the end (delta: -38.6 MB). Peak memory consumption was 168.0 MB. Max. memory is 16.0 GB. [2021-04-28 22:20:36,128 INFO L168 Benchmark]: TraceAbstraction took 82812.06 ms. Allocated memory was 367.0 MB in the beginning and 635.4 MB in the end (delta: 268.4 MB). Free memory was 311.0 MB in the beginning and 338.1 MB in the end (delta: -27.1 MB). Peak memory consumption was 240.3 MB. Max. memory is 16.0 GB. [2021-04-28 22:20:36,130 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 649.35 ms. Allocated memory is still 302.0 MB. Free memory was 273.2 MB in the beginning and 278.8 MB in the end (delta: -5.5 MB). Peak memory consumption was 35.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 107.08 ms. Allocated memory is still 302.0 MB. Free memory was 278.8 MB in the beginning and 275.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 38.72 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 273.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 2375.29 ms. Allocated memory was 302.0 MB in the beginning and 367.0 MB in the end (delta: 65.0 MB). Free memory was 273.5 MB in the beginning and 312.1 MB in the end (delta: -38.6 MB). Peak memory consumption was 168.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 82812.06 ms. Allocated memory was 367.0 MB in the beginning and 635.4 MB in the end (delta: 268.4 MB). Free memory was 311.0 MB in the beginning and 338.1 MB in the end (delta: -27.1 MB). Peak memory consumption was 240.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 77720.1ms, 83 PlacesBefore, 105 PlacesAfterwards, 78 TransitionsBefore, 100 TransitionsAfterwards, 918 CoEnabledTransitionPairs, 8 FixpointIterations, 104 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 175 TotalNumberOfCompositions, 8174 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2033, positive: 1854, positive conditional: 1854, positive unconditional: 0, negative: 179, negative conditional: 179, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1045, positive: 991, positive conditional: 0, positive unconditional: 991, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1045, positive: 991, positive conditional: 0, positive unconditional: 991, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1045, positive: 979, positive conditional: 0, positive unconditional: 979, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 66, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1284, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 1245, negative conditional: 0, negative unconditional: 1245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2033, positive: 863, positive conditional: 863, positive unconditional: 0, negative: 125, negative conditional: 125, negative unconditional: 0, unknown: 1045, unknown conditional: 1045, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1045, Positive cache size: 991, Positive conditional cache size: 991, Positive unconditional cache size: 0, Negative cache size: 54, Negative conditional cache size: 54, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 99.6ms, 102 PlacesBefore, 37 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 462 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 418 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 8, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 8, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 89, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 54, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1053, Positive cache size: 997, Positive conditional cache size: 997, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 244.7ms, 40 PlacesBefore, 33 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 274 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 256 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 58, positive: 39, positive conditional: 39, 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: 14, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 233, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 224, negative conditional: 0, negative unconditional: 224, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 58, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1067, Positive cache size: 1003, Positive conditional cache size: 1003, Positive unconditional cache size: 0, Negative cache size: 64, Negative conditional cache size: 64, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 62.5ms, 36 PlacesBefore, 36 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 286 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 204 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 55, positive: 41, positive conditional: 41, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 45, positive conditional: 45, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 55, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1072, Positive cache size: 1007, Positive conditional cache size: 1007, Positive unconditional cache size: 0, Negative cache size: 65, Negative conditional cache size: 65, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.2ms, 40 PlacesBefore, 40 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 314 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 122 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 3, 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: 5, positive: 5, positive conditional: 3, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 33, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1077, Positive cache size: 1012, Positive conditional cache size: 1012, Positive unconditional cache size: 0, Negative cache size: 65, Negative conditional cache size: 65, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.9ms, 46 PlacesBefore, 45 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 350 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 99 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 12, positive unconditional: 4, 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: 16, positive: 16, positive conditional: 12, positive unconditional: 4, 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: 16, positive: 16, positive conditional: 0, positive unconditional: 16, 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: 60, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1093, Positive cache size: 1028, Positive conditional cache size: 1028, Positive unconditional cache size: 0, Negative cache size: 65, Negative conditional cache size: 65, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.7ms, 53 PlacesBefore, 51 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 97 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 53, positive: 46, positive conditional: 46, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, positive unconditional: 0, 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: 15, positive unconditional: 0, 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: 53, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1108, Positive cache size: 1043, Positive conditional cache size: 1043, Positive unconditional cache size: 0, Negative cache size: 65, Negative conditional cache size: 65, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 130.8ms, 57 PlacesBefore, 50 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 22 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 9, positive unconditional: 1, 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: 10, positive: 10, positive conditional: 9, positive unconditional: 1, 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: 10, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 22, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1118, Positive cache size: 1053, Positive conditional cache size: 1053, Positive unconditional cache size: 0, Negative cache size: 65, Negative conditional cache size: 65, Negative unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L711] 0 _Bool main$tmp_guard0; [L712] 0 _Bool main$tmp_guard1; [L714] 0 int x = 0; [L715] 0 _Bool x$flush_delayed; [L716] 0 int x$mem_tmp; [L717] 0 _Bool x$r_buff0_thd0; [L718] 0 _Bool x$r_buff0_thd1; [L719] 0 _Bool x$r_buff0_thd2; [L720] 0 _Bool x$r_buff1_thd0; [L721] 0 _Bool x$r_buff1_thd1; [L722] 0 _Bool x$r_buff1_thd2; [L723] 0 _Bool x$read_delayed; [L724] 0 int *x$read_delayed_var; [L725] 0 int x$w_buff0; [L726] 0 _Bool x$w_buff0_used; [L727] 0 int x$w_buff1; [L728] 0 _Bool x$w_buff1_used; [L730] 0 int y = 0; [L731] 0 _Bool weak$$choice0; [L732] 0 _Bool weak$$choice2; [L792] 0 pthread_t t1451; [L793] FCALL, FORK 0 pthread_create(&t1451, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=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] [L794] 0 pthread_t t1452; [L795] FCALL, FORK 0 pthread_create(&t1452, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=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] [L756] 2 x$w_buff1 = x$w_buff0 [L757] 2 x$w_buff0 = 2 [L758] 2 x$w_buff1_used = x$w_buff0_used [L759] 2 x$w_buff0_used = (_Bool)1 [L18] COND FALSE 2 !(!expression) [L761] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L762] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L763] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L764] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$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_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L767] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L736] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L739] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, 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_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L742] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L742] EXPR 1 x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x [L742] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L742] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L743] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L743] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L744] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L744] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L745] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L745] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L746] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L746] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L749] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L751] 1 return 0; [L770] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L770] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L771] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L771] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L772] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L772] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L773] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L773] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L774] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L774] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L777] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L779] 2 return 0; VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, 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_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1] [L797] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L801] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L801] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L801] 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) [L801] 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) [L802] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L802] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L803] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L803] 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 [L804] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L804] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L805] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L805] 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 [L808] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L809] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L810] 0 x$flush_delayed = weak$$choice2 [L811] 0 x$mem_tmp = x [L812] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L812] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L813] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L813] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0) [L813] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L813] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L814] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L814] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1) [L814] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L814] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L815] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L815] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used) [L815] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L815] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L816] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L816] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L816] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L816] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L817] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L817] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0) [L817] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L817] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L818] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L818] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L818] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L818] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L819] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0) [L820] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L820] 0 x = x$flush_delayed ? x$mem_tmp : x [L821] 0 x$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 79 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 82560.6ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1985.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 77822.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 43 SDtfs, 46 SDslu, 42 SDs, 0 SdLazy, 239 SolverSat, 87 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 651.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1029.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=6, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.0ms SsaConstructionTime, 381.1ms SatisfiabilityAnalysisTime, 1333.7ms InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 668 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...