/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix057_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 14:39:24,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 14:39:24,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 14:39:24,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 14:39:24,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 14:39:24,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 14:39:24,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 14:39:24,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 14:39:24,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 14:39:24,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 14:39:24,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 14:39:24,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 14:39:24,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 14:39:24,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 14:39:24,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 14:39:24,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 14:39:24,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 14:39:24,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 14:39:24,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 14:39:24,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 14:39:24,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 14:39:24,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 14:39:24,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 14:39:24,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 14:39:24,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 14:39:24,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 14:39:24,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 14:39:24,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 14:39:24,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 14:39:24,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 14:39:24,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 14:39:24,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 14:39:24,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 14:39:24,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 14:39:24,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 14:39:24,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 14:39:24,337 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-RepeatedSemanticLbe.epf [2021-03-25 14:39:24,379 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 14:39:24,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 14:39:24,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 14:39:24,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 14:39:24,381 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 14:39:24,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 14:39:24,381 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 14:39:24,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 14:39:24,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 14:39:24,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 14:39:24,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 14:39:24,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 14:39:24,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 14:39:24,382 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 14:39:24,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 14:39:24,382 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 14:39:24,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 14:39:24,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 14:39:24,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 14:39:24,383 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 14:39:24,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 14:39:24,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:39:24,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 14:39:24,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 14:39:24,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 14:39:24,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 14:39:24,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 14:39:24,384 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 14:39:24,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 14:39:24,385 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 14:39:24,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 14:39:24,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 14:39:24,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 14:39:24,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 14:39:24,694 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 14:39:24,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_tso.oepc.i [2021-03-25 14:39:24,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bbc88116/5b556623ae4d4858a84a2a82d3df9f80/FLAG9cbdc76ed [2021-03-25 14:39:25,348 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 14:39:25,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_tso.oepc.i [2021-03-25 14:39:25,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bbc88116/5b556623ae4d4858a84a2a82d3df9f80/FLAG9cbdc76ed [2021-03-25 14:39:25,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bbc88116/5b556623ae4d4858a84a2a82d3df9f80 [2021-03-25 14:39:25,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 14:39:25,741 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 14:39:25,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 14:39:25,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 14:39:25,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 14:39:25,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:39:25" (1/1) ... [2021-03-25 14:39:25,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52bbcbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:25, skipping insertion in model container [2021-03-25 14:39:25,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:39:25" (1/1) ... [2021-03-25 14:39:25,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 14:39:25,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 14:39:25,945 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/mix057_tso.oepc.i[949,962] [2021-03-25 14:39:26,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:39:26,125 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 14:39:26,136 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/mix057_tso.oepc.i[949,962] [2021-03-25 14:39:26,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:39:26,276 INFO L208 MainTranslator]: Completed translation [2021-03-25 14:39:26,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:26 WrapperNode [2021-03-25 14:39:26,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 14:39:26,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 14:39:26,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 14:39:26,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 14:39:26,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:26" (1/1) ... [2021-03-25 14:39:26,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:26" (1/1) ... [2021-03-25 14:39:26,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 14:39:26,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 14:39:26,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 14:39:26,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 14:39:26,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:26" (1/1) ... [2021-03-25 14:39:26,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:26" (1/1) ... [2021-03-25 14:39:26,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:26" (1/1) ... [2021-03-25 14:39:26,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:26" (1/1) ... [2021-03-25 14:39:26,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:26" (1/1) ... [2021-03-25 14:39:26,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:26" (1/1) ... [2021-03-25 14:39:26,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:26" (1/1) ... [2021-03-25 14:39:26,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 14:39:26,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 14:39:26,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 14:39:26,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 14:39:26,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:39:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 14:39:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 14:39:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 14:39:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 14:39:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 14:39:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 14:39:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 14:39:26,489 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 14:39:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 14:39:26,489 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 14:39:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 14:39:26,489 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 14:39:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 14:39:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 14:39:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 14:39:26,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 14:39:26,491 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 14:39:28,113 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 14:39:28,113 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 14:39:28,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:39:28 BoogieIcfgContainer [2021-03-25 14:39:28,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 14:39:28,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 14:39:28,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 14:39:28,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 14:39:28,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 02:39:25" (1/3) ... [2021-03-25 14:39:28,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da691ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:39:28, skipping insertion in model container [2021-03-25 14:39:28,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:26" (2/3) ... [2021-03-25 14:39:28,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da691ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:39:28, skipping insertion in model container [2021-03-25 14:39:28,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:39:28" (3/3) ... [2021-03-25 14:39:28,143 INFO L111 eAbstractionObserver]: Analyzing ICFG mix057_tso.oepc.i [2021-03-25 14:39:28,148 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 14:39:28,152 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 14:39:28,152 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 14:39:28,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,182 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,182 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,183 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,183 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,184 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,184 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,185 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,185 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,186 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,186 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,186 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,187 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,190 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,190 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,190 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,190 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,190 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,190 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,191 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,191 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,191 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,191 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,191 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,191 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,191 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,192 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,192 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,192 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,192 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,192 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,192 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,195 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,195 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,195 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,196 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,197 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,198 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,199 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,199 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,200 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,200 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,201 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,201 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,201 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,201 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,201 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,202 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,204 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,204 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:28,205 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 14:39:28,221 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 14:39:28,238 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 14:39:28,238 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 14:39:28,238 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 14:39:28,238 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 14:39:28,238 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 14:39:28,238 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 14:39:28,238 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 14:39:28,239 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 14:39:28,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 244 flow [2021-03-25 14:39:28,284 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-03-25 14:39:28,284 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:28,288 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-03-25 14:39:28,288 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 112 transitions, 244 flow [2021-03-25 14:39:28,297 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 108 transitions, 228 flow [2021-03-25 14:39:28,298 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:28,308 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 108 transitions, 228 flow [2021-03-25 14:39:28,310 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 108 transitions, 228 flow [2021-03-25 14:39:28,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 108 transitions, 228 flow [2021-03-25 14:39:28,347 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-03-25 14:39:28,348 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:28,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-03-25 14:39:28,353 INFO L142 LiptonReduction]: Number of co-enabled transitions 2406 [2021-03-25 14:39:29,708 WARN L205 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-03-25 14:39:30,028 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 14:39:31,343 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-03-25 14:39:31,940 WARN L205 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-25 14:39:32,948 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 14:39:33,344 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 14:39:33,450 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 14:39:34,863 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-25 14:39:35,168 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-25 14:39:35,746 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-25 14:39:36,423 WARN L205 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-25 14:39:36,823 INFO L154 LiptonReduction]: Checked pairs total: 4010 [2021-03-25 14:39:36,823 INFO L156 LiptonReduction]: Total number of compositions: 75 [2021-03-25 14:39:36,825 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8528 [2021-03-25 14:39:36,841 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-03-25 14:39:36,842 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:36,842 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:36,842 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:36,843 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:36,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:36,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1880455195, now seen corresponding path program 1 times [2021-03-25 14:39:36,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:36,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832378913] [2021-03-25 14:39:36,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:37,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:37,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:37,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:37,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:37,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832378913] [2021-03-25 14:39:37,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:37,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:39:37,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724875685] [2021-03-25 14:39:37,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:39:37,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:37,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:39:37,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:39:37,149 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 187 [2021-03-25 14:39:37,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:37,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:37,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 187 [2021-03-25 14:39:37,155 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:37,224 INFO L129 PetriNetUnfolder]: 23/98 cut-off events. [2021-03-25 14:39:37,224 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:37,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 98 events. 23/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 340 event pairs, 3 based on Foata normal form. 6/97 useless extension candidates. Maximal degree in co-relation 140. Up to 37 conditions per place. [2021-03-25 14:39:37,227 INFO L132 encePairwiseOnDemand]: 183/187 looper letters, 7 selfloop transitions, 2 changer transitions 5/43 dead transitions. [2021-03-25 14:39:37,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 43 transitions, 120 flow [2021-03-25 14:39:37,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:39:37,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:39:37,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 506 transitions. [2021-03-25 14:39:37,244 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9019607843137255 [2021-03-25 14:39:37,245 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 506 transitions. [2021-03-25 14:39:37,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 506 transitions. [2021-03-25 14:39:37,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:37,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 506 transitions. [2021-03-25 14:39:37,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:37,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:37,265 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:37,266 INFO L185 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 3 states and 506 transitions. [2021-03-25 14:39:37,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 43 transitions, 120 flow [2021-03-25 14:39:37,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 43 transitions, 116 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 14:39:37,270 INFO L241 Difference]: Finished difference. Result has 50 places, 35 transitions, 82 flow [2021-03-25 14:39:37,272 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=50, PETRI_TRANSITIONS=35} [2021-03-25 14:39:37,273 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -4 predicate places. [2021-03-25 14:39:37,273 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:37,273 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 35 transitions, 82 flow [2021-03-25 14:39:37,275 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 35 transitions, 82 flow [2021-03-25 14:39:37,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 35 transitions, 82 flow [2021-03-25 14:39:37,280 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-03-25 14:39:37,281 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:37,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 35 events. 0/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 14:39:37,282 INFO L142 LiptonReduction]: Number of co-enabled transitions 362 [2021-03-25 14:39:37,593 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 14:39:37,730 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 14:39:38,887 WARN L205 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2021-03-25 14:39:39,200 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-25 14:39:39,880 WARN L205 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 14:39:40,694 WARN L205 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 14:39:41,197 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-03-25 14:39:41,559 INFO L154 LiptonReduction]: Checked pairs total: 1154 [2021-03-25 14:39:41,559 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-25 14:39:41,559 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4286 [2021-03-25 14:39:41,560 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 66 flow [2021-03-25 14:39:41,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:41,561 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:41,561 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:41,561 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 14:39:41,561 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:41,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:41,562 INFO L82 PathProgramCache]: Analyzing trace with hash 157805214, now seen corresponding path program 1 times [2021-03-25 14:39:41,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:41,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763361126] [2021-03-25 14:39:41,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:41,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:41,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:41,681 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-25 14:39:41,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 14:39:41,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:41,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763361126] [2021-03-25 14:39:41,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:41,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:39:41,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599520994] [2021-03-25 14:39:41,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:39:41,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:41,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:39:41,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:39:41,689 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 195 [2021-03-25 14:39:41,689 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 66 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) [2021-03-25 14:39:41,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:41,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 195 [2021-03-25 14:39:41,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:41,706 INFO L129 PetriNetUnfolder]: 3/37 cut-off events. [2021-03-25 14:39:41,707 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:41,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 37 events. 3/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 1 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 49. Up to 10 conditions per place. [2021-03-25 14:39:41,707 INFO L132 encePairwiseOnDemand]: 191/195 looper letters, 3 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2021-03-25 14:39:41,707 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 29 transitions, 82 flow [2021-03-25 14:39:41,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:39:41,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:39:41,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 508 transitions. [2021-03-25 14:39:41,710 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8683760683760684 [2021-03-25 14:39:41,710 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 508 transitions. [2021-03-25 14:39:41,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 508 transitions. [2021-03-25 14:39:41,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:41,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 508 transitions. [2021-03-25 14:39:41,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:41,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:41,714 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:41,714 INFO L185 Difference]: Start difference. First operand has 38 places, 27 transitions, 66 flow. Second operand 3 states and 508 transitions. [2021-03-25 14:39:41,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 29 transitions, 82 flow [2021-03-25 14:39:41,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 14:39:41,716 INFO L241 Difference]: Finished difference. Result has 39 places, 29 transitions, 81 flow [2021-03-25 14:39:41,716 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2021-03-25 14:39:41,718 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -15 predicate places. [2021-03-25 14:39:41,718 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:41,718 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 29 transitions, 81 flow [2021-03-25 14:39:41,719 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 29 transitions, 81 flow [2021-03-25 14:39:41,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 29 transitions, 81 flow [2021-03-25 14:39:41,725 INFO L129 PetriNetUnfolder]: 3/35 cut-off events. [2021-03-25 14:39:41,725 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:41,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 35 events. 3/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 1 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 48. Up to 10 conditions per place. [2021-03-25 14:39:41,726 INFO L142 LiptonReduction]: Number of co-enabled transitions 356 [2021-03-25 14:39:42,263 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-03-25 14:39:42,442 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-25 14:39:42,947 WARN L205 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-03-25 14:39:43,104 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-25 14:39:43,108 INFO L154 LiptonReduction]: Checked pairs total: 996 [2021-03-25 14:39:43,108 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 14:39:43,108 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1390 [2021-03-25 14:39:43,109 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 77 flow [2021-03-25 14:39:43,109 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) [2021-03-25 14:39:43,109 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:43,109 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:43,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 14:39:43,110 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:43,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:43,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1377057789, now seen corresponding path program 1 times [2021-03-25 14:39:43,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:43,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999408471] [2021-03-25 14:39:43,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:43,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:43,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:43,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999408471] [2021-03-25 14:39:43,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:43,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 14:39:43,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884238946] [2021-03-25 14:39:43,165 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:39:43,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:43,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:39:43,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:39:43,167 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 197 [2021-03-25 14:39:43,168 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,168 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:43,168 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 197 [2021-03-25 14:39:43,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:43,198 INFO L129 PetriNetUnfolder]: 10/58 cut-off events. [2021-03-25 14:39:43,198 INFO L130 PetriNetUnfolder]: For 10/16 co-relation queries the response was YES. [2021-03-25 14:39:43,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 58 events. 10/58 cut-off events. For 10/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 174 event pairs, 3 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 96. Up to 19 conditions per place. [2021-03-25 14:39:43,199 INFO L132 encePairwiseOnDemand]: 193/197 looper letters, 3 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2021-03-25 14:39:43,199 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 93 flow [2021-03-25 14:39:43,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:39:43,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:39:43,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 523 transitions. [2021-03-25 14:39:43,202 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8849407783417935 [2021-03-25 14:39:43,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 523 transitions. [2021-03-25 14:39:43,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 523 transitions. [2021-03-25 14:39:43,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:43,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 523 transitions. [2021-03-25 14:39:43,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,205 INFO L185 Difference]: Start difference. First operand has 37 places, 27 transitions, 77 flow. Second operand 3 states and 523 transitions. [2021-03-25 14:39:43,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 29 transitions, 93 flow [2021-03-25 14:39:43,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:43,206 INFO L241 Difference]: Finished difference. Result has 39 places, 29 transitions, 93 flow [2021-03-25 14:39:43,207 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2021-03-25 14:39:43,207 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -15 predicate places. [2021-03-25 14:39:43,207 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:43,207 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 29 transitions, 93 flow [2021-03-25 14:39:43,207 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 29 transitions, 93 flow [2021-03-25 14:39:43,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 29 transitions, 93 flow [2021-03-25 14:39:43,213 INFO L129 PetriNetUnfolder]: 7/45 cut-off events. [2021-03-25 14:39:43,213 INFO L130 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2021-03-25 14:39:43,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 45 events. 7/45 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 123 event pairs, 3 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 78. Up to 15 conditions per place. [2021-03-25 14:39:43,214 INFO L142 LiptonReduction]: Number of co-enabled transitions 394 [2021-03-25 14:39:43,233 INFO L154 LiptonReduction]: Checked pairs total: 280 [2021-03-25 14:39:43,234 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:43,234 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-25 14:39:43,237 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 93 flow [2021-03-25 14:39:43,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,237 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:43,237 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:43,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 14:39:43,239 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:43,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:43,239 INFO L82 PathProgramCache]: Analyzing trace with hash 370417324, now seen corresponding path program 1 times [2021-03-25 14:39:43,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:43,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298244722] [2021-03-25 14:39:43,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:43,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:43,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:43,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:43,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298244722] [2021-03-25 14:39:43,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:43,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:39:43,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420121944] [2021-03-25 14:39:43,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:39:43,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:43,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:39:43,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:39:43,346 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 197 [2021-03-25 14:39:43,347 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:43,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 197 [2021-03-25 14:39:43,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:43,365 INFO L129 PetriNetUnfolder]: 4/52 cut-off events. [2021-03-25 14:39:43,365 INFO L130 PetriNetUnfolder]: For 26/61 co-relation queries the response was YES. [2021-03-25 14:39:43,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 52 events. 4/52 cut-off events. For 26/61 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 179 event pairs, 1 based on Foata normal form. 4/52 useless extension candidates. Maximal degree in co-relation 99. Up to 15 conditions per place. [2021-03-25 14:39:43,367 INFO L132 encePairwiseOnDemand]: 194/197 looper letters, 3 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2021-03-25 14:39:43,368 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 29 transitions, 105 flow [2021-03-25 14:39:43,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:39:43,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:39:43,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2021-03-25 14:39:43,370 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.883248730964467 [2021-03-25 14:39:43,370 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 522 transitions. [2021-03-25 14:39:43,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 522 transitions. [2021-03-25 14:39:43,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:43,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 522 transitions. [2021-03-25 14:39:43,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,374 INFO L185 Difference]: Start difference. First operand has 39 places, 29 transitions, 93 flow. Second operand 3 states and 522 transitions. [2021-03-25 14:39:43,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 29 transitions, 105 flow [2021-03-25 14:39:43,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 29 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:43,375 INFO L241 Difference]: Finished difference. Result has 41 places, 29 transitions, 101 flow [2021-03-25 14:39:43,376 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2021-03-25 14:39:43,376 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -13 predicate places. [2021-03-25 14:39:43,376 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:43,376 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 29 transitions, 101 flow [2021-03-25 14:39:43,376 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 29 transitions, 101 flow [2021-03-25 14:39:43,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 29 transitions, 101 flow [2021-03-25 14:39:43,382 INFO L129 PetriNetUnfolder]: 4/45 cut-off events. [2021-03-25 14:39:43,382 INFO L130 PetriNetUnfolder]: For 27/43 co-relation queries the response was YES. [2021-03-25 14:39:43,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 45 events. 4/45 cut-off events. For 27/43 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 127 event pairs, 2 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 81. Up to 13 conditions per place. [2021-03-25 14:39:43,385 INFO L142 LiptonReduction]: Number of co-enabled transitions 394 [2021-03-25 14:39:43,387 INFO L154 LiptonReduction]: Checked pairs total: 316 [2021-03-25 14:39:43,387 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:43,387 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 14:39:43,391 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 101 flow [2021-03-25 14:39:43,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,392 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:43,392 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:43,392 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 14:39:43,392 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:43,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:43,393 INFO L82 PathProgramCache]: Analyzing trace with hash -921273539, now seen corresponding path program 1 times [2021-03-25 14:39:43,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:43,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643887651] [2021-03-25 14:39:43,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:43,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 14:39:43,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:39:43,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:43,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643887651] [2021-03-25 14:39:43,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:43,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:39:43,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827257423] [2021-03-25 14:39:43,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:39:43,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:43,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:39:43,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:39:43,543 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 197 [2021-03-25 14:39:43,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 101 flow. Second operand has 4 states, 4 states have (on average 156.75) internal successors, (627), 4 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:43,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 197 [2021-03-25 14:39:43,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:43,638 INFO L129 PetriNetUnfolder]: 98/260 cut-off events. [2021-03-25 14:39:43,638 INFO L130 PetriNetUnfolder]: For 369/493 co-relation queries the response was YES. [2021-03-25 14:39:43,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 260 events. 98/260 cut-off events. For 369/493 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1434 event pairs, 62 based on Foata normal form. 4/232 useless extension candidates. Maximal degree in co-relation 589. Up to 149 conditions per place. [2021-03-25 14:39:43,642 INFO L132 encePairwiseOnDemand]: 192/197 looper letters, 8 selfloop transitions, 5 changer transitions 0/35 dead transitions. [2021-03-25 14:39:43,642 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 35 transitions, 139 flow [2021-03-25 14:39:43,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:39:43,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:39:43,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 639 transitions. [2021-03-25 14:39:43,645 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8109137055837563 [2021-03-25 14:39:43,645 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 639 transitions. [2021-03-25 14:39:43,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 639 transitions. [2021-03-25 14:39:43,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:43,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 639 transitions. [2021-03-25 14:39:43,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 159.75) internal successors, (639), 4 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,649 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,649 INFO L185 Difference]: Start difference. First operand has 41 places, 29 transitions, 101 flow. Second operand 4 states and 639 transitions. [2021-03-25 14:39:43,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 35 transitions, 139 flow [2021-03-25 14:39:43,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 35 transitions, 134 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:43,652 INFO L241 Difference]: Finished difference. Result has 45 places, 33 transitions, 130 flow [2021-03-25 14:39:43,652 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=130, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2021-03-25 14:39:43,652 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -9 predicate places. [2021-03-25 14:39:43,653 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:43,653 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 33 transitions, 130 flow [2021-03-25 14:39:43,653 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 33 transitions, 130 flow [2021-03-25 14:39:43,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 33 transitions, 130 flow [2021-03-25 14:39:43,664 INFO L129 PetriNetUnfolder]: 17/94 cut-off events. [2021-03-25 14:39:43,665 INFO L130 PetriNetUnfolder]: For 170/201 co-relation queries the response was YES. [2021-03-25 14:39:43,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 94 events. 17/94 cut-off events. For 170/201 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 431 event pairs, 6 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 222. Up to 29 conditions per place. [2021-03-25 14:39:43,666 INFO L142 LiptonReduction]: Number of co-enabled transitions 466 [2021-03-25 14:39:43,669 INFO L154 LiptonReduction]: Checked pairs total: 267 [2021-03-25 14:39:43,669 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:43,670 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-25 14:39:43,670 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 130 flow [2021-03-25 14:39:43,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 156.75) internal successors, (627), 4 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,671 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:43,671 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:43,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 14:39:43,671 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:43,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:43,672 INFO L82 PathProgramCache]: Analyzing trace with hash -583256081, now seen corresponding path program 1 times [2021-03-25 14:39:43,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:43,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102537328] [2021-03-25 14:39:43,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:43,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:39:43,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:39:43,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 14:39:43,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:43,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102537328] [2021-03-25 14:39:43,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:43,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:39:43,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992210362] [2021-03-25 14:39:43,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:39:43,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:43,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:39:43,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:39:43,771 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 197 [2021-03-25 14:39:43,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 130 flow. Second operand has 5 states, 5 states have (on average 158.8) internal successors, (794), 5 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:43,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 197 [2021-03-25 14:39:43,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:43,848 INFO L129 PetriNetUnfolder]: 83/223 cut-off events. [2021-03-25 14:39:43,848 INFO L130 PetriNetUnfolder]: For 614/686 co-relation queries the response was YES. [2021-03-25 14:39:43,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 631 conditions, 223 events. 83/223 cut-off events. For 614/686 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1155 event pairs, 40 based on Foata normal form. 13/214 useless extension candidates. Maximal degree in co-relation 615. Up to 115 conditions per place. [2021-03-25 14:39:43,852 INFO L132 encePairwiseOnDemand]: 191/197 looper letters, 9 selfloop transitions, 7 changer transitions 0/38 dead transitions. [2021-03-25 14:39:43,852 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 38 transitions, 174 flow [2021-03-25 14:39:43,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:39:43,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:39:43,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 647 transitions. [2021-03-25 14:39:43,854 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8210659898477157 [2021-03-25 14:39:43,855 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 647 transitions. [2021-03-25 14:39:43,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 647 transitions. [2021-03-25 14:39:43,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:43,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 647 transitions. [2021-03-25 14:39:43,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,859 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,860 INFO L185 Difference]: Start difference. First operand has 45 places, 33 transitions, 130 flow. Second operand 4 states and 647 transitions. [2021-03-25 14:39:43,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 38 transitions, 174 flow [2021-03-25 14:39:43,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 38 transitions, 174 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 14:39:43,864 INFO L241 Difference]: Finished difference. Result has 50 places, 36 transitions, 170 flow [2021-03-25 14:39:43,864 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=170, PETRI_PLACES=50, PETRI_TRANSITIONS=36} [2021-03-25 14:39:43,864 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -4 predicate places. [2021-03-25 14:39:43,864 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:43,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 36 transitions, 170 flow [2021-03-25 14:39:43,865 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 36 transitions, 170 flow [2021-03-25 14:39:43,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 36 transitions, 170 flow [2021-03-25 14:39:43,888 INFO L129 PetriNetUnfolder]: 50/160 cut-off events. [2021-03-25 14:39:43,888 INFO L130 PetriNetUnfolder]: For 591/632 co-relation queries the response was YES. [2021-03-25 14:39:43,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 160 events. 50/160 cut-off events. For 591/632 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 821 event pairs, 20 based on Foata normal form. 2/137 useless extension candidates. Maximal degree in co-relation 511. Up to 66 conditions per place. [2021-03-25 14:39:43,891 INFO L142 LiptonReduction]: Number of co-enabled transitions 512 [2021-03-25 14:39:43,898 INFO L154 LiptonReduction]: Checked pairs total: 205 [2021-03-25 14:39:43,898 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:43,898 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-25 14:39:43,901 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 36 transitions, 170 flow [2021-03-25 14:39:43,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 158.8) internal successors, (794), 5 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,902 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:43,902 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:43,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 14:39:43,902 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:43,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:43,902 INFO L82 PathProgramCache]: Analyzing trace with hash 140782150, now seen corresponding path program 1 times [2021-03-25 14:39:43,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:43,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609891655] [2021-03-25 14:39:43,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:43,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:39:44,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:44,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:39:44,020 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-03-25 14:39:44,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 14:39:44,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:44,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:39:44,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:44,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609891655] [2021-03-25 14:39:44,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:44,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:39:44,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620652075] [2021-03-25 14:39:44,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:39:44,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:44,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:39:44,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:39:44,054 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 197 [2021-03-25 14:39:44,055 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 36 transitions, 170 flow. Second operand has 6 states, 6 states have (on average 153.83333333333334) internal successors, (923), 6 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:44,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:44,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 197 [2021-03-25 14:39:44,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:44,175 INFO L129 PetriNetUnfolder]: 92/249 cut-off events. [2021-03-25 14:39:44,175 INFO L130 PetriNetUnfolder]: For 774/838 co-relation queries the response was YES. [2021-03-25 14:39:44,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 846 conditions, 249 events. 92/249 cut-off events. For 774/838 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1345 event pairs, 12 based on Foata normal form. 9/236 useless extension candidates. Maximal degree in co-relation 826. Up to 121 conditions per place. [2021-03-25 14:39:44,179 INFO L132 encePairwiseOnDemand]: 190/197 looper letters, 10 selfloop transitions, 9 changer transitions 0/41 dead transitions. [2021-03-25 14:39:44,179 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 41 transitions, 228 flow [2021-03-25 14:39:44,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:39:44,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:39:44,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 782 transitions. [2021-03-25 14:39:44,182 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7939086294416243 [2021-03-25 14:39:44,182 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 782 transitions. [2021-03-25 14:39:44,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 782 transitions. [2021-03-25 14:39:44,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:44,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 782 transitions. [2021-03-25 14:39:44,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 156.4) internal successors, (782), 5 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:44,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:44,187 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:44,187 INFO L185 Difference]: Start difference. First operand has 50 places, 36 transitions, 170 flow. Second operand 5 states and 782 transitions. [2021-03-25 14:39:44,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 41 transitions, 228 flow [2021-03-25 14:39:44,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 41 transitions, 222 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:44,190 INFO L241 Difference]: Finished difference. Result has 54 places, 38 transitions, 199 flow [2021-03-25 14:39:44,190 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=199, PETRI_PLACES=54, PETRI_TRANSITIONS=38} [2021-03-25 14:39:44,191 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 0 predicate places. [2021-03-25 14:39:44,191 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:44,191 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 38 transitions, 199 flow [2021-03-25 14:39:44,191 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 38 transitions, 199 flow [2021-03-25 14:39:44,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 38 transitions, 199 flow [2021-03-25 14:39:44,238 INFO L129 PetriNetUnfolder]: 68/186 cut-off events. [2021-03-25 14:39:44,238 INFO L130 PetriNetUnfolder]: For 971/1022 co-relation queries the response was YES. [2021-03-25 14:39:44,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 186 events. 68/186 cut-off events. For 971/1022 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 911 event pairs, 23 based on Foata normal form. 2/157 useless extension candidates. Maximal degree in co-relation 679. Up to 81 conditions per place. [2021-03-25 14:39:44,242 INFO L142 LiptonReduction]: Number of co-enabled transitions 550 [2021-03-25 14:39:44,445 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 14:39:44,825 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 80 [2021-03-25 14:39:44,946 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-03-25 14:39:44,961 INFO L154 LiptonReduction]: Checked pairs total: 509 [2021-03-25 14:39:44,961 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:39:44,962 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 771 [2021-03-25 14:39:44,962 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 38 transitions, 202 flow [2021-03-25 14:39:44,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 153.83333333333334) internal successors, (923), 6 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:44,963 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:44,963 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:44,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 14:39:44,963 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:44,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:44,963 INFO L82 PathProgramCache]: Analyzing trace with hash 288517126, now seen corresponding path program 2 times [2021-03-25 14:39:44,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:44,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010120900] [2021-03-25 14:39:44,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:45,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:45,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:39:45,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:45,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:39:45,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:45,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 14:39:45,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:45,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 14:39:45,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:45,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010120900] [2021-03-25 14:39:45,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:45,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:39:45,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854113774] [2021-03-25 14:39:45,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:39:45,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:45,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:39:45,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:39:45,070 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 198 [2021-03-25 14:39:45,070 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 38 transitions, 202 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) [2021-03-25 14:39:45,071 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:45,071 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 198 [2021-03-25 14:39:45,071 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:45,194 INFO L129 PetriNetUnfolder]: 98/261 cut-off events. [2021-03-25 14:39:45,194 INFO L130 PetriNetUnfolder]: For 1014/1082 co-relation queries the response was YES. [2021-03-25 14:39:45,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1015 conditions, 261 events. 98/261 cut-off events. For 1014/1082 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1400 event pairs, 12 based on Foata normal form. 9/241 useless extension candidates. Maximal degree in co-relation 993. Up to 133 conditions per place. [2021-03-25 14:39:45,198 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 12 selfloop transitions, 12 changer transitions 0/46 dead transitions. [2021-03-25 14:39:45,198 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 46 transitions, 298 flow [2021-03-25 14:39:45,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:39:45,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:39:45,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 777 transitions. [2021-03-25 14:39:45,201 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7848484848484848 [2021-03-25 14:39:45,201 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 777 transitions. [2021-03-25 14:39:45,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 777 transitions. [2021-03-25 14:39:45,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:45,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 777 transitions. [2021-03-25 14:39:45,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 155.4) internal successors, (777), 5 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:45,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:45,206 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:45,206 INFO L185 Difference]: Start difference. First operand has 54 places, 38 transitions, 202 flow. Second operand 5 states and 777 transitions. [2021-03-25 14:39:45,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 46 transitions, 298 flow [2021-03-25 14:39:45,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 46 transitions, 271 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-25 14:39:45,211 INFO L241 Difference]: Finished difference. Result has 56 places, 45 transitions, 262 flow [2021-03-25 14:39:45,211 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=262, PETRI_PLACES=56, PETRI_TRANSITIONS=45} [2021-03-25 14:39:45,211 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2021-03-25 14:39:45,212 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:45,212 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 45 transitions, 262 flow [2021-03-25 14:39:45,212 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 45 transitions, 262 flow [2021-03-25 14:39:45,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 45 transitions, 262 flow [2021-03-25 14:39:45,241 INFO L129 PetriNetUnfolder]: 65/188 cut-off events. [2021-03-25 14:39:45,241 INFO L130 PetriNetUnfolder]: For 844/905 co-relation queries the response was YES. [2021-03-25 14:39:45,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 701 conditions, 188 events. 65/188 cut-off events. For 844/905 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 922 event pairs, 17 based on Foata normal form. 2/163 useless extension candidates. Maximal degree in co-relation 680. Up to 77 conditions per place. [2021-03-25 14:39:45,244 INFO L142 LiptonReduction]: Number of co-enabled transitions 662 [2021-03-25 14:39:45,253 INFO L154 LiptonReduction]: Checked pairs total: 361 [2021-03-25 14:39:45,253 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:45,253 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-25 14:39:45,253 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 262 flow [2021-03-25 14:39:45,254 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) [2021-03-25 14:39:45,254 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:45,254 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:45,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 14:39:45,254 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:45,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:45,255 INFO L82 PathProgramCache]: Analyzing trace with hash -568086244, now seen corresponding path program 1 times [2021-03-25 14:39:45,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:45,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500411780] [2021-03-25 14:39:45,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:45,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:45,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:39:45,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:45,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:39:45,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:45,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 14:39:45,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:45,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 14:39:45,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:45,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500411780] [2021-03-25 14:39:45,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:45,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:39:45,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540149066] [2021-03-25 14:39:45,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:39:45,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:45,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:39:45,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:39:45,377 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 198 [2021-03-25 14:39:45,378 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 262 flow. Second operand has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:45,378 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:45,378 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 198 [2021-03-25 14:39:45,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:45,520 INFO L129 PetriNetUnfolder]: 120/337 cut-off events. [2021-03-25 14:39:45,520 INFO L130 PetriNetUnfolder]: For 1822/1918 co-relation queries the response was YES. [2021-03-25 14:39:45,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1484 conditions, 337 events. 120/337 cut-off events. For 1822/1918 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1984 event pairs, 13 based on Foata normal form. 5/310 useless extension candidates. Maximal degree in co-relation 1461. Up to 150 conditions per place. [2021-03-25 14:39:45,525 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 16 selfloop transitions, 14 changer transitions 0/52 dead transitions. [2021-03-25 14:39:45,525 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 52 transitions, 384 flow [2021-03-25 14:39:45,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:39:45,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:39:45,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 797 transitions. [2021-03-25 14:39:45,528 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.805050505050505 [2021-03-25 14:39:45,528 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 797 transitions. [2021-03-25 14:39:45,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 797 transitions. [2021-03-25 14:39:45,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:45,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 797 transitions. [2021-03-25 14:39:45,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 159.4) internal successors, (797), 5 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:45,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:45,534 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:45,534 INFO L185 Difference]: Start difference. First operand has 56 places, 45 transitions, 262 flow. Second operand 5 states and 797 transitions. [2021-03-25 14:39:45,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 52 transitions, 384 flow [2021-03-25 14:39:45,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 52 transitions, 372 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-03-25 14:39:45,539 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 351 flow [2021-03-25 14:39:45,540 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=351, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2021-03-25 14:39:45,540 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 8 predicate places. [2021-03-25 14:39:45,540 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:45,540 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 50 transitions, 351 flow [2021-03-25 14:39:45,540 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 50 transitions, 351 flow [2021-03-25 14:39:45,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 351 flow [2021-03-25 14:39:45,579 INFO L129 PetriNetUnfolder]: 92/256 cut-off events. [2021-03-25 14:39:45,580 INFO L130 PetriNetUnfolder]: For 1916/1988 co-relation queries the response was YES. [2021-03-25 14:39:45,581 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1198 conditions, 256 events. 92/256 cut-off events. For 1916/1988 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1358 event pairs, 18 based on Foata normal form. 3/224 useless extension candidates. Maximal degree in co-relation 1173. Up to 107 conditions per place. [2021-03-25 14:39:45,585 INFO L142 LiptonReduction]: Number of co-enabled transitions 744 [2021-03-25 14:39:45,651 INFO L154 LiptonReduction]: Checked pairs total: 506 [2021-03-25 14:39:45,651 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:45,651 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 111 [2021-03-25 14:39:45,652 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 351 flow [2021-03-25 14:39:45,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:45,653 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:45,653 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:45,653 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 14:39:45,653 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:45,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:45,653 INFO L82 PathProgramCache]: Analyzing trace with hash 526071428, now seen corresponding path program 1 times [2021-03-25 14:39:45,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:45,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938387661] [2021-03-25 14:39:45,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:45,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:45,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:39:45,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:45,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:39:45,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:45,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:39:45,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:45,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 14:39:45,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:45,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938387661] [2021-03-25 14:39:45,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:45,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:39:45,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541440016] [2021-03-25 14:39:45,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:39:45,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:45,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:39:45,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:39:45,777 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 198 [2021-03-25 14:39:45,778 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 351 flow. Second operand has 6 states, 6 states have (on average 156.83333333333334) internal successors, (941), 6 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:45,778 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:45,778 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 198 [2021-03-25 14:39:45,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:45,923 INFO L129 PetriNetUnfolder]: 102/331 cut-off events. [2021-03-25 14:39:45,924 INFO L130 PetriNetUnfolder]: For 2658/2776 co-relation queries the response was YES. [2021-03-25 14:39:45,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1589 conditions, 331 events. 102/331 cut-off events. For 2658/2776 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2109 event pairs, 4 based on Foata normal form. 23/328 useless extension candidates. Maximal degree in co-relation 1562. Up to 141 conditions per place. [2021-03-25 14:39:45,928 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 13 selfloop transitions, 24 changer transitions 0/59 dead transitions. [2021-03-25 14:39:45,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 59 transitions, 507 flow [2021-03-25 14:39:45,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 14:39:45,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 14:39:45,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1114 transitions. [2021-03-25 14:39:45,932 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8037518037518038 [2021-03-25 14:39:45,932 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1114 transitions. [2021-03-25 14:39:45,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1114 transitions. [2021-03-25 14:39:45,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:45,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1114 transitions. [2021-03-25 14:39:45,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 159.14285714285714) internal successors, (1114), 7 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:45,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:45,937 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:45,937 INFO L185 Difference]: Start difference. First operand has 62 places, 50 transitions, 351 flow. Second operand 7 states and 1114 transitions. [2021-03-25 14:39:45,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 59 transitions, 507 flow [2021-03-25 14:39:45,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 59 transitions, 480 flow, removed 13 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:45,943 INFO L241 Difference]: Finished difference. Result has 69 places, 56 transitions, 469 flow [2021-03-25 14:39:45,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=469, PETRI_PLACES=69, PETRI_TRANSITIONS=56} [2021-03-25 14:39:45,944 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 15 predicate places. [2021-03-25 14:39:45,944 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:45,944 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 56 transitions, 469 flow [2021-03-25 14:39:45,944 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 56 transitions, 469 flow [2021-03-25 14:39:45,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 56 transitions, 469 flow [2021-03-25 14:39:46,009 INFO L129 PetriNetUnfolder]: 75/244 cut-off events. [2021-03-25 14:39:46,010 INFO L130 PetriNetUnfolder]: For 1614/1678 co-relation queries the response was YES. [2021-03-25 14:39:46,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1183 conditions, 244 events. 75/244 cut-off events. For 1614/1678 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1417 event pairs, 12 based on Foata normal form. 4/222 useless extension candidates. Maximal degree in co-relation 1155. Up to 94 conditions per place. [2021-03-25 14:39:46,014 INFO L142 LiptonReduction]: Number of co-enabled transitions 860 [2021-03-25 14:39:46,024 INFO L154 LiptonReduction]: Checked pairs total: 826 [2021-03-25 14:39:46,024 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:46,024 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 80 [2021-03-25 14:39:46,026 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 56 transitions, 469 flow [2021-03-25 14:39:46,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 156.83333333333334) internal successors, (941), 6 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,027 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:46,027 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:46,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 14:39:46,027 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:46,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:46,028 INFO L82 PathProgramCache]: Analyzing trace with hash 2146489328, now seen corresponding path program 1 times [2021-03-25 14:39:46,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:46,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570430955] [2021-03-25 14:39:46,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:46,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:46,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:46,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:46,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:46,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:46,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570430955] [2021-03-25 14:39:46,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:46,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:39:46,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773814906] [2021-03-25 14:39:46,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:39:46,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:46,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:39:46,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:39:46,078 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 198 [2021-03-25 14:39:46,078 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 56 transitions, 469 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,078 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:46,078 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 198 [2021-03-25 14:39:46,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:46,139 INFO L129 PetriNetUnfolder]: 85/324 cut-off events. [2021-03-25 14:39:46,139 INFO L130 PetriNetUnfolder]: For 3156/3509 co-relation queries the response was YES. [2021-03-25 14:39:46,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1517 conditions, 324 events. 85/324 cut-off events. For 3156/3509 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2147 event pairs, 12 based on Foata normal form. 15/318 useless extension candidates. Maximal degree in co-relation 1487. Up to 118 conditions per place. [2021-03-25 14:39:46,142 INFO L132 encePairwiseOnDemand]: 195/198 looper letters, 4 selfloop transitions, 3 changer transitions 0/56 dead transitions. [2021-03-25 14:39:46,143 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 56 transitions, 483 flow [2021-03-25 14:39:46,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:39:46,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:39:46,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 525 transitions. [2021-03-25 14:39:46,145 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8838383838383839 [2021-03-25 14:39:46,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 525 transitions. [2021-03-25 14:39:46,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 525 transitions. [2021-03-25 14:39:46,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:46,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 525 transitions. [2021-03-25 14:39:46,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,148 INFO L185 Difference]: Start difference. First operand has 69 places, 56 transitions, 469 flow. Second operand 3 states and 525 transitions. [2021-03-25 14:39:46,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 56 transitions, 483 flow [2021-03-25 14:39:46,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 56 transitions, 455 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-03-25 14:39:46,154 INFO L241 Difference]: Finished difference. Result has 68 places, 56 transitions, 454 flow [2021-03-25 14:39:46,154 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=454, PETRI_PLACES=68, PETRI_TRANSITIONS=56} [2021-03-25 14:39:46,154 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 14 predicate places. [2021-03-25 14:39:46,154 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:46,154 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 56 transitions, 454 flow [2021-03-25 14:39:46,155 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 56 transitions, 454 flow [2021-03-25 14:39:46,155 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 56 transitions, 454 flow [2021-03-25 14:39:46,197 INFO L129 PetriNetUnfolder]: 85/324 cut-off events. [2021-03-25 14:39:46,197 INFO L130 PetriNetUnfolder]: For 1980/2159 co-relation queries the response was YES. [2021-03-25 14:39:46,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1421 conditions, 324 events. 85/324 cut-off events. For 1980/2159 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2185 event pairs, 6 based on Foata normal form. 5/308 useless extension candidates. Maximal degree in co-relation 1394. Up to 118 conditions per place. [2021-03-25 14:39:46,202 INFO L142 LiptonReduction]: Number of co-enabled transitions 860 [2021-03-25 14:39:46,219 INFO L154 LiptonReduction]: Checked pairs total: 973 [2021-03-25 14:39:46,219 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:46,219 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-03-25 14:39:46,220 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 56 transitions, 454 flow [2021-03-25 14:39:46,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,220 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:46,220 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:46,220 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 14:39:46,221 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:46,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:46,221 INFO L82 PathProgramCache]: Analyzing trace with hash -484906953, now seen corresponding path program 1 times [2021-03-25 14:39:46,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:46,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836401302] [2021-03-25 14:39:46,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:46,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:46,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:39:46,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:46,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:39:46,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:46,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:39:46,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:46,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:39:46,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:46,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 14:39:46,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:46,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836401302] [2021-03-25 14:39:46,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:46,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:39:46,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475040671] [2021-03-25 14:39:46,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:39:46,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:46,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:39:46,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:39:46,329 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 198 [2021-03-25 14:39:46,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 56 transitions, 454 flow. Second operand has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:46,331 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 198 [2021-03-25 14:39:46,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:46,487 INFO L129 PetriNetUnfolder]: 72/306 cut-off events. [2021-03-25 14:39:46,487 INFO L130 PetriNetUnfolder]: For 2133/2305 co-relation queries the response was YES. [2021-03-25 14:39:46,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1461 conditions, 306 events. 72/306 cut-off events. For 2133/2305 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2077 event pairs, 0 based on Foata normal form. 20/309 useless extension candidates. Maximal degree in co-relation 1432. Up to 102 conditions per place. [2021-03-25 14:39:46,491 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 12 selfloop transitions, 24 changer transitions 0/58 dead transitions. [2021-03-25 14:39:46,491 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 58 transitions, 530 flow [2021-03-25 14:39:46,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 14:39:46,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 14:39:46,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1091 transitions. [2021-03-25 14:39:46,494 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7871572871572872 [2021-03-25 14:39:46,494 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1091 transitions. [2021-03-25 14:39:46,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1091 transitions. [2021-03-25 14:39:46,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:46,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1091 transitions. [2021-03-25 14:39:46,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 155.85714285714286) internal successors, (1091), 7 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,500 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,500 INFO L185 Difference]: Start difference. First operand has 68 places, 56 transitions, 454 flow. Second operand 7 states and 1091 transitions. [2021-03-25 14:39:46,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 58 transitions, 530 flow [2021-03-25 14:39:46,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 58 transitions, 525 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:46,506 INFO L241 Difference]: Finished difference. Result has 74 places, 55 transitions, 495 flow [2021-03-25 14:39:46,506 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=495, PETRI_PLACES=74, PETRI_TRANSITIONS=55} [2021-03-25 14:39:46,507 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 20 predicate places. [2021-03-25 14:39:46,507 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:46,507 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 55 transitions, 495 flow [2021-03-25 14:39:46,507 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 55 transitions, 495 flow [2021-03-25 14:39:46,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 55 transitions, 495 flow [2021-03-25 14:39:46,545 INFO L129 PetriNetUnfolder]: 70/303 cut-off events. [2021-03-25 14:39:46,546 INFO L130 PetriNetUnfolder]: For 1837/1932 co-relation queries the response was YES. [2021-03-25 14:39:46,547 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1425 conditions, 303 events. 70/303 cut-off events. For 1837/1932 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2099 event pairs, 6 based on Foata normal form. 5/290 useless extension candidates. Maximal degree in co-relation 1396. Up to 102 conditions per place. [2021-03-25 14:39:46,551 INFO L142 LiptonReduction]: Number of co-enabled transitions 846 [2021-03-25 14:39:46,564 INFO L154 LiptonReduction]: Checked pairs total: 906 [2021-03-25 14:39:46,565 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:46,565 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-03-25 14:39:46,565 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 55 transitions, 495 flow [2021-03-25 14:39:46,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,566 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:46,566 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:46,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 14:39:46,566 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:46,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:46,566 INFO L82 PathProgramCache]: Analyzing trace with hash -828251297, now seen corresponding path program 1 times [2021-03-25 14:39:46,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:46,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908003726] [2021-03-25 14:39:46,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:46,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:46,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:46,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:46,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:39:46,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:46,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:46,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:46,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908003726] [2021-03-25 14:39:46,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:46,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:39:46,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185963697] [2021-03-25 14:39:46,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:39:46,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:46,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:39:46,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:39:46,623 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 198 [2021-03-25 14:39:46,623 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 55 transitions, 495 flow. Second operand has 4 states, 4 states have (on average 163.75) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,624 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:46,624 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 198 [2021-03-25 14:39:46,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:47,011 INFO L129 PetriNetUnfolder]: 1471/2724 cut-off events. [2021-03-25 14:39:47,011 INFO L130 PetriNetUnfolder]: For 10785/13224 co-relation queries the response was YES. [2021-03-25 14:39:47,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9448 conditions, 2724 events. 1471/2724 cut-off events. For 10785/13224 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 21956 event pairs, 666 based on Foata normal form. 343/2602 useless extension candidates. Maximal degree in co-relation 9417. Up to 1741 conditions per place. [2021-03-25 14:39:47,034 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 14 selfloop transitions, 10 changer transitions 0/68 dead transitions. [2021-03-25 14:39:47,035 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 68 transitions, 569 flow [2021-03-25 14:39:47,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:39:47,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:39:47,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 837 transitions. [2021-03-25 14:39:47,037 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8454545454545455 [2021-03-25 14:39:47,037 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 837 transitions. [2021-03-25 14:39:47,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 837 transitions. [2021-03-25 14:39:47,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:47,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 837 transitions. [2021-03-25 14:39:47,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 167.4) internal successors, (837), 5 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:47,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:47,041 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:47,041 INFO L185 Difference]: Start difference. First operand has 74 places, 55 transitions, 495 flow. Second operand 5 states and 837 transitions. [2021-03-25 14:39:47,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 68 transitions, 569 flow [2021-03-25 14:39:47,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 68 transitions, 547 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-25 14:39:47,060 INFO L241 Difference]: Finished difference. Result has 77 places, 64 transitions, 564 flow [2021-03-25 14:39:47,060 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=564, PETRI_PLACES=77, PETRI_TRANSITIONS=64} [2021-03-25 14:39:47,060 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 23 predicate places. [2021-03-25 14:39:47,060 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:47,060 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 64 transitions, 564 flow [2021-03-25 14:39:47,060 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 64 transitions, 564 flow [2021-03-25 14:39:47,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 64 transitions, 564 flow [2021-03-25 14:39:47,333 INFO L129 PetriNetUnfolder]: 1429/2620 cut-off events. [2021-03-25 14:39:47,333 INFO L130 PetriNetUnfolder]: For 9619/12018 co-relation queries the response was YES. [2021-03-25 14:39:47,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10557 conditions, 2620 events. 1429/2620 cut-off events. For 9619/12018 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 20800 event pairs, 606 based on Foata normal form. 27/2148 useless extension candidates. Maximal degree in co-relation 10525. Up to 1908 conditions per place. [2021-03-25 14:39:47,386 INFO L142 LiptonReduction]: Number of co-enabled transitions 1096 [2021-03-25 14:39:47,864 INFO L154 LiptonReduction]: Checked pairs total: 410 [2021-03-25 14:39:47,864 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:47,864 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 804 [2021-03-25 14:39:47,864 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 64 transitions, 564 flow [2021-03-25 14:39:47,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 163.75) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:47,865 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:47,865 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:47,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 14:39:47,865 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:47,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:47,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1066420252, now seen corresponding path program 1 times [2021-03-25 14:39:47,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:47,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615399355] [2021-03-25 14:39:47,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:47,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:47,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:47,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:47,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:47,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:47,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:39:47,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:47,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:47,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:47,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615399355] [2021-03-25 14:39:47,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:47,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:39:47,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019227676] [2021-03-25 14:39:47,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:39:47,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:47,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:39:47,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:39:47,923 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 198 [2021-03-25 14:39:47,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 64 transitions, 564 flow. Second operand has 5 states, 5 states have (on average 163.8) internal successors, (819), 5 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:47,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:47,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 198 [2021-03-25 14:39:47,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:48,224 INFO L129 PetriNetUnfolder]: 1071/2083 cut-off events. [2021-03-25 14:39:48,224 INFO L130 PetriNetUnfolder]: For 11839/20367 co-relation queries the response was YES. [2021-03-25 14:39:48,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9689 conditions, 2083 events. 1071/2083 cut-off events. For 11839/20367 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 16484 event pairs, 190 based on Foata normal form. 569/2305 useless extension candidates. Maximal degree in co-relation 9655. Up to 1551 conditions per place. [2021-03-25 14:39:48,245 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 14 selfloop transitions, 19 changer transitions 0/77 dead transitions. [2021-03-25 14:39:48,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 77 transitions, 706 flow [2021-03-25 14:39:48,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 14:39:48,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 14:39:48,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1172 transitions. [2021-03-25 14:39:48,248 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8455988455988456 [2021-03-25 14:39:48,248 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1172 transitions. [2021-03-25 14:39:48,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1172 transitions. [2021-03-25 14:39:48,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:48,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1172 transitions. [2021-03-25 14:39:48,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 167.42857142857142) internal successors, (1172), 7 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:48,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:48,253 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:48,254 INFO L185 Difference]: Start difference. First operand has 77 places, 64 transitions, 564 flow. Second operand 7 states and 1172 transitions. [2021-03-25 14:39:48,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 77 transitions, 706 flow [2021-03-25 14:39:48,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 77 transitions, 701 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:48,327 INFO L241 Difference]: Finished difference. Result has 85 places, 73 transitions, 709 flow [2021-03-25 14:39:48,328 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=709, PETRI_PLACES=85, PETRI_TRANSITIONS=73} [2021-03-25 14:39:48,328 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 31 predicate places. [2021-03-25 14:39:48,328 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:48,328 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 73 transitions, 709 flow [2021-03-25 14:39:48,328 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 73 transitions, 709 flow [2021-03-25 14:39:48,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 73 transitions, 709 flow [2021-03-25 14:39:48,552 INFO L129 PetriNetUnfolder]: 1053/2043 cut-off events. [2021-03-25 14:39:48,552 INFO L130 PetriNetUnfolder]: For 11810/17993 co-relation queries the response was YES. [2021-03-25 14:39:48,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10974 conditions, 2043 events. 1053/2043 cut-off events. For 11810/17993 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 16282 event pairs, 182 based on Foata normal form. 40/1728 useless extension candidates. Maximal degree in co-relation 10938. Up to 1545 conditions per place. [2021-03-25 14:39:48,589 INFO L142 LiptonReduction]: Number of co-enabled transitions 1260 [2021-03-25 14:39:48,783 INFO L154 LiptonReduction]: Checked pairs total: 478 [2021-03-25 14:39:48,783 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:48,783 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 455 [2021-03-25 14:39:48,784 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 73 transitions, 709 flow [2021-03-25 14:39:48,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 163.8) internal successors, (819), 5 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:48,784 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:48,784 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:48,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 14:39:48,785 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:48,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:48,787 INFO L82 PathProgramCache]: Analyzing trace with hash -537655138, now seen corresponding path program 1 times [2021-03-25 14:39:48,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:48,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183257599] [2021-03-25 14:39:48,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:48,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:48,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:48,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:48,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:48,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:48,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:48,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:48,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:39:48,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:48,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:48,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:48,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183257599] [2021-03-25 14:39:48,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:48,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 14:39:48,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442748977] [2021-03-25 14:39:48,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:39:48,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:48,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:39:48,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:39:48,873 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 198 [2021-03-25 14:39:48,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 73 transitions, 709 flow. Second operand has 6 states, 6 states have (on average 163.83333333333334) internal successors, (983), 6 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:48,874 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:48,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 198 [2021-03-25 14:39:48,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:49,138 INFO L129 PetriNetUnfolder]: 741/1499 cut-off events. [2021-03-25 14:39:49,138 INFO L130 PetriNetUnfolder]: For 12994/27343 co-relation queries the response was YES. [2021-03-25 14:39:49,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8887 conditions, 1499 events. 741/1499 cut-off events. For 12994/27343 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 11416 event pairs, 20 based on Foata normal form. 729/1931 useless extension candidates. Maximal degree in co-relation 8849. Up to 1279 conditions per place. [2021-03-25 14:39:49,153 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 7 selfloop transitions, 28 changer transitions 6/78 dead transitions. [2021-03-25 14:39:49,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 78 transitions, 815 flow [2021-03-25 14:39:49,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 14:39:49,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 14:39:49,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1507 transitions. [2021-03-25 14:39:49,158 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.845679012345679 [2021-03-25 14:39:49,158 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1507 transitions. [2021-03-25 14:39:49,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1507 transitions. [2021-03-25 14:39:49,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:49,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1507 transitions. [2021-03-25 14:39:49,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 167.44444444444446) internal successors, (1507), 9 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:49,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 198.0) internal successors, (1980), 10 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:49,177 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 198.0) internal successors, (1980), 10 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:49,178 INFO L185 Difference]: Start difference. First operand has 85 places, 73 transitions, 709 flow. Second operand 9 states and 1507 transitions. [2021-03-25 14:39:49,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 78 transitions, 815 flow [2021-03-25 14:39:49,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 78 transitions, 745 flow, removed 22 selfloop flow, removed 6 redundant places. [2021-03-25 14:39:49,197 INFO L241 Difference]: Finished difference. Result has 90 places, 72 transitions, 695 flow [2021-03-25 14:39:49,197 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=695, PETRI_PLACES=90, PETRI_TRANSITIONS=72} [2021-03-25 14:39:49,197 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 36 predicate places. [2021-03-25 14:39:49,197 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:49,197 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 72 transitions, 695 flow [2021-03-25 14:39:49,198 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 72 transitions, 695 flow [2021-03-25 14:39:49,198 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 72 transitions, 695 flow [2021-03-25 14:39:49,327 INFO L129 PetriNetUnfolder]: 665/1395 cut-off events. [2021-03-25 14:39:49,327 INFO L130 PetriNetUnfolder]: For 11522/14373 co-relation queries the response was YES. [2021-03-25 14:39:49,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7957 conditions, 1395 events. 665/1395 cut-off events. For 11522/14373 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 11165 event pairs, 20 based on Foata normal form. 21/1119 useless extension candidates. Maximal degree in co-relation 7919. Up to 952 conditions per place. [2021-03-25 14:39:49,356 INFO L142 LiptonReduction]: Number of co-enabled transitions 1274 [2021-03-25 14:39:49,377 INFO L154 LiptonReduction]: Checked pairs total: 430 [2021-03-25 14:39:49,377 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:49,378 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 181 [2021-03-25 14:39:49,381 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 72 transitions, 695 flow [2021-03-25 14:39:49,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 163.83333333333334) internal successors, (983), 6 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:49,381 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:49,381 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:49,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 14:39:49,381 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:49,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:49,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1525483821, now seen corresponding path program 1 times [2021-03-25 14:39:49,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:49,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723079208] [2021-03-25 14:39:49,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:49,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:49,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:49,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:49,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:49,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:49,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:49,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:49,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:49,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:49,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:39:49,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:49,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:49,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:49,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723079208] [2021-03-25 14:39:49,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:49,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 14:39:49,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930516913] [2021-03-25 14:39:49,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 14:39:49,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:49,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 14:39:49,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 14:39:49,510 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 198 [2021-03-25 14:39:49,511 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 72 transitions, 695 flow. Second operand has 7 states, 7 states have (on average 163.85714285714286) internal successors, (1147), 7 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:49,511 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:49,511 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 198 [2021-03-25 14:39:49,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:49,767 INFO L129 PetriNetUnfolder]: 604/1251 cut-off events. [2021-03-25 14:39:49,768 INFO L130 PetriNetUnfolder]: For 12696/21918 co-relation queries the response was YES. [2021-03-25 14:39:49,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7994 conditions, 1251 events. 604/1251 cut-off events. For 12696/21918 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 9491 event pairs, 0 based on Foata normal form. 619/1576 useless extension candidates. Maximal degree in co-relation 7954. Up to 862 conditions per place. [2021-03-25 14:39:49,779 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 2 selfloop transitions, 33 changer transitions 9/74 dead transitions. [2021-03-25 14:39:49,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 74 transitions, 791 flow [2021-03-25 14:39:49,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 14:39:49,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 14:39:49,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1834 transitions. [2021-03-25 14:39:49,784 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8420569329660239 [2021-03-25 14:39:49,784 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1834 transitions. [2021-03-25 14:39:49,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1834 transitions. [2021-03-25 14:39:49,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:49,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1834 transitions. [2021-03-25 14:39:49,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 166.72727272727272) internal successors, (1834), 11 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:49,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 198.0) internal successors, (2376), 12 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:49,792 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 198.0) internal successors, (2376), 12 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:49,792 INFO L185 Difference]: Start difference. First operand has 90 places, 72 transitions, 695 flow. Second operand 11 states and 1834 transitions. [2021-03-25 14:39:49,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 74 transitions, 791 flow [2021-03-25 14:39:49,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 74 transitions, 643 flow, removed 46 selfloop flow, removed 9 redundant places. [2021-03-25 14:39:49,862 INFO L241 Difference]: Finished difference. Result has 94 places, 65 transitions, 561 flow [2021-03-25 14:39:49,862 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=561, PETRI_PLACES=94, PETRI_TRANSITIONS=65} [2021-03-25 14:39:49,862 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 40 predicate places. [2021-03-25 14:39:49,862 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:49,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 65 transitions, 561 flow [2021-03-25 14:39:49,863 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 65 transitions, 561 flow [2021-03-25 14:39:49,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 65 transitions, 561 flow [2021-03-25 14:39:49,895 INFO L129 PetriNetUnfolder]: 149/335 cut-off events. [2021-03-25 14:39:49,895 INFO L130 PetriNetUnfolder]: For 1637/2025 co-relation queries the response was YES. [2021-03-25 14:39:49,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1497 conditions, 335 events. 149/335 cut-off events. For 1637/2025 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 2066 event pairs, 0 based on Foata normal form. 4/289 useless extension candidates. Maximal degree in co-relation 1460. Up to 110 conditions per place. [2021-03-25 14:39:49,900 INFO L142 LiptonReduction]: Number of co-enabled transitions 798 [2021-03-25 14:39:50,200 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-25 14:39:50,318 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-25 14:39:50,972 WARN L205 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 184 [2021-03-25 14:39:51,183 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-03-25 14:39:53,193 WARN L205 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 339 DAG size of output: 264 [2021-03-25 14:39:53,711 WARN L205 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2021-03-25 14:39:54,012 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-03-25 14:39:54,247 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-03-25 14:39:54,836 WARN L205 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-03-25 14:39:55,419 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-03-25 14:39:55,429 INFO L154 LiptonReduction]: Checked pairs total: 821 [2021-03-25 14:39:55,429 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-25 14:39:55,429 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5567 [2021-03-25 14:39:55,429 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 56 transitions, 521 flow [2021-03-25 14:39:55,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 163.85714285714286) internal successors, (1147), 7 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:55,430 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:55,430 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:55,430 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 14:39:55,430 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:55,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:55,431 INFO L82 PathProgramCache]: Analyzing trace with hash 792221348, now seen corresponding path program 1 times [2021-03-25 14:39:55,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:55,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149099070] [2021-03-25 14:39:55,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:55,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:55,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:55,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:55,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:55,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:55,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:55,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:55,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149099070] [2021-03-25 14:39:55,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:55,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:39:55,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142354788] [2021-03-25 14:39:55,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:39:55,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:55,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:39:55,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:39:55,487 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 206 [2021-03-25 14:39:55,487 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 56 transitions, 521 flow. Second operand has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:55,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:55,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 206 [2021-03-25 14:39:55,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:55,526 INFO L129 PetriNetUnfolder]: 87/194 cut-off events. [2021-03-25 14:39:55,526 INFO L130 PetriNetUnfolder]: For 2109/2228 co-relation queries the response was YES. [2021-03-25 14:39:55,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 194 events. 87/194 cut-off events. For 2109/2228 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 836 event pairs, 0 based on Foata normal form. 8/181 useless extension candidates. Maximal degree in co-relation 859. Up to 78 conditions per place. [2021-03-25 14:39:55,527 INFO L132 encePairwiseOnDemand]: 203/206 looper letters, 3 selfloop transitions, 1 changer transitions 9/45 dead transitions. [2021-03-25 14:39:55,528 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 45 transitions, 417 flow [2021-03-25 14:39:55,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:39:55,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:39:55,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 718 transitions. [2021-03-25 14:39:55,530 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8713592233009708 [2021-03-25 14:39:55,530 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 718 transitions. [2021-03-25 14:39:55,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 718 transitions. [2021-03-25 14:39:55,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:55,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 718 transitions. [2021-03-25 14:39:55,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 179.5) internal successors, (718), 4 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:55,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:55,533 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:55,533 INFO L185 Difference]: Start difference. First operand has 88 places, 56 transitions, 521 flow. Second operand 4 states and 718 transitions. [2021-03-25 14:39:55,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 45 transitions, 417 flow [2021-03-25 14:39:55,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 45 transitions, 311 flow, removed 30 selfloop flow, removed 18 redundant places. [2021-03-25 14:39:55,539 INFO L241 Difference]: Finished difference. Result has 65 places, 36 transitions, 230 flow [2021-03-25 14:39:55,539 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=65, PETRI_TRANSITIONS=36} [2021-03-25 14:39:55,540 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 11 predicate places. [2021-03-25 14:39:55,540 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:55,540 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 36 transitions, 230 flow [2021-03-25 14:39:55,540 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 36 transitions, 230 flow [2021-03-25 14:39:55,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 36 transitions, 230 flow [2021-03-25 14:39:55,549 INFO L129 PetriNetUnfolder]: 43/105 cut-off events. [2021-03-25 14:39:55,549 INFO L130 PetriNetUnfolder]: For 261/278 co-relation queries the response was YES. [2021-03-25 14:39:55,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 105 events. 43/105 cut-off events. For 261/278 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 366 event pairs, 0 based on Foata normal form. 3/98 useless extension candidates. Maximal degree in co-relation 323. Up to 34 conditions per place. [2021-03-25 14:39:55,550 INFO L142 LiptonReduction]: Number of co-enabled transitions 178 [2021-03-25 14:39:55,753 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 14:39:56,227 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2021-03-25 14:39:56,356 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 14:39:56,468 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2021-03-25 14:39:56,742 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 89 [2021-03-25 14:39:56,923 INFO L154 LiptonReduction]: Checked pairs total: 18 [2021-03-25 14:39:56,923 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 14:39:56,923 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1383 [2021-03-25 14:39:56,923 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 35 transitions, 232 flow [2021-03-25 14:39:56,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:56,924 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:56,924 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:56,924 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 14:39:56,924 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:56,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:56,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1673311584, now seen corresponding path program 1 times [2021-03-25 14:39:56,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:56,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178433387] [2021-03-25 14:39:56,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 14:39:56,949 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 14:39:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 14:39:56,973 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 14:39:56,998 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 14:39:56,999 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 14:39:56,999 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 14:39:57,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 02:39:57 BasicIcfg [2021-03-25 14:39:57,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 14:39:57,109 INFO L168 Benchmark]: Toolchain (without parser) took 31368.20 ms. Allocated memory was 255.9 MB in the beginning and 799.0 MB in the end (delta: 543.2 MB). Free memory was 233.1 MB in the beginning and 329.8 MB in the end (delta: -96.7 MB). Peak memory consumption was 446.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:39:57,110 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:39:57,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.50 ms. Allocated memory was 255.9 MB in the beginning and 373.3 MB in the end (delta: 117.4 MB). Free memory was 233.1 MB in the beginning and 332.7 MB in the end (delta: -99.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-25 14:39:57,110 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.29 ms. Allocated memory is still 373.3 MB. Free memory was 332.7 MB in the beginning and 329.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:39:57,110 INFO L168 Benchmark]: Boogie Preprocessor took 59.80 ms. Allocated memory is still 373.3 MB. Free memory was 329.7 MB in the beginning and 327.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:39:57,110 INFO L168 Benchmark]: RCFGBuilder took 1690.39 ms. Allocated memory is still 373.3 MB. Free memory was 327.3 MB in the beginning and 272.8 MB in the end (delta: 54.4 MB). Peak memory consumption was 56.5 MB. Max. memory is 16.0 GB. [2021-03-25 14:39:57,111 INFO L168 Benchmark]: TraceAbstraction took 28971.04 ms. Allocated memory was 461.4 MB in the beginning and 799.0 MB in the end (delta: 337.6 MB). Free memory was 437.9 MB in the beginning and 329.8 MB in the end (delta: 108.1 MB). Peak memory consumption was 445.8 MB. Max. memory is 16.0 GB. [2021-03-25 14:39:57,112 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 536.50 ms. Allocated memory was 255.9 MB in the beginning and 373.3 MB in the end (delta: 117.4 MB). Free memory was 233.1 MB in the beginning and 332.7 MB in the end (delta: -99.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 84.29 ms. Allocated memory is still 373.3 MB. Free memory was 332.7 MB in the beginning and 329.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 59.80 ms. Allocated memory is still 373.3 MB. Free memory was 329.7 MB in the beginning and 327.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1690.39 ms. Allocated memory is still 373.3 MB. Free memory was 327.3 MB in the beginning and 272.8 MB in the end (delta: 54.4 MB). Peak memory consumption was 56.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 28971.04 ms. Allocated memory was 461.4 MB in the beginning and 799.0 MB in the end (delta: 337.6 MB). Free memory was 437.9 MB in the beginning and 329.8 MB in the end (delta: 108.1 MB). Peak memory consumption was 445.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8513.0ms, 119 PlacesBefore, 54 PlacesAfterwards, 108 TransitionsBefore, 42 TransitionsAfterwards, 2406 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 4010 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2326, positive: 2230, positive conditional: 0, positive unconditional: 2230, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1598, positive: 1564, positive conditional: 0, positive unconditional: 1564, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1598, positive: 1564, positive conditional: 0, positive unconditional: 1564, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1598, positive: 1545, positive conditional: 0, positive unconditional: 1545, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 53, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 663, positive: 85, positive conditional: 0, positive unconditional: 85, negative: 578, negative conditional: 0, negative unconditional: 578, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2326, positive: 666, positive conditional: 0, positive unconditional: 666, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 1598, unknown conditional: 0, unknown unconditional: 1598] , Statistics on independence cache: Total cache size (in pairs): 213, Positive cache size: 199, Positive conditional cache size: 0, Positive unconditional cache size: 199, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4284.6ms, 50 PlacesBefore, 38 PlacesAfterwards, 35 TransitionsBefore, 27 TransitionsAfterwards, 362 CoEnabledTransitionPairs, 3 FixpointIterations, 6 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 1154 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 467, positive: 398, positive conditional: 0, positive unconditional: 398, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 72, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 72, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 72, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 482, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 410, negative conditional: 0, negative unconditional: 410, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 467, positive: 346, positive conditional: 0, positive unconditional: 346, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 72, unknown conditional: 0, unknown unconditional: 72] , Statistics on independence cache: Total cache size (in pairs): 237, Positive cache size: 209, Positive conditional cache size: 0, Positive unconditional cache size: 209, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1389.3ms, 39 PlacesBefore, 37 PlacesAfterwards, 29 TransitionsBefore, 27 TransitionsAfterwards, 356 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 996 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 348, positive: 288, positive conditional: 0, positive unconditional: 288, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, 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: 2, positive: 2, positive conditional: 0, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 348, positive: 286, positive conditional: 0, positive unconditional: 286, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 239, Positive cache size: 211, Positive conditional cache size: 0, Positive unconditional cache size: 211, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.5ms, 39 PlacesBefore, 39 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 394 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 280 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 76, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 76, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 241, Positive cache size: 211, Positive conditional cache size: 0, Positive unconditional cache size: 211, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.8ms, 41 PlacesBefore, 41 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 394 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 316 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 102, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 7, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 7, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 102, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 248, Positive cache size: 218, Positive conditional cache size: 0, Positive unconditional cache size: 218, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.4ms, 45 PlacesBefore, 45 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 466 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 267 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 81, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 81, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 248, Positive cache size: 218, Positive conditional cache size: 0, Positive unconditional cache size: 218, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.9ms, 50 PlacesBefore, 50 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 512 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 205 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 47, positive conditional: 0, positive unconditional: 47, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 251, Positive cache size: 221, Positive conditional cache size: 0, Positive unconditional cache size: 221, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 770.3ms, 54 PlacesBefore, 54 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 550 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 509 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 144, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, 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: 2, positive: 2, positive conditional: 0, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 144, positive: 118, positive conditional: 0, positive unconditional: 118, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 245, Positive cache size: 223, Positive conditional cache size: 0, Positive unconditional cache size: 223, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.9ms, 56 PlacesBefore, 56 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 662 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 361 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 88, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 88, positive: 69, positive conditional: 0, positive unconditional: 69, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 248, Positive cache size: 226, Positive conditional cache size: 0, Positive unconditional cache size: 226, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 110.9ms, 62 PlacesBefore, 62 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 744 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 506 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 134, positive: 114, positive conditional: 0, positive unconditional: 114, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 134, positive: 114, positive conditional: 0, positive unconditional: 114, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 250, Positive cache size: 226, Positive conditional cache size: 0, Positive unconditional cache size: 226, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 79.9ms, 69 PlacesBefore, 69 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 860 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 826 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170, positive: 139, positive conditional: 0, positive unconditional: 139, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 170, positive: 139, positive conditional: 0, positive unconditional: 139, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 250, Positive cache size: 226, Positive conditional cache size: 0, Positive unconditional cache size: 226, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.8ms, 68 PlacesBefore, 68 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 860 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 973 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 255, positive: 221, positive conditional: 0, positive unconditional: 221, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 7, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 7, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 255, positive: 214, positive conditional: 0, positive unconditional: 214, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 257, Positive cache size: 233, Positive conditional cache size: 0, Positive unconditional cache size: 233, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.7ms, 74 PlacesBefore, 74 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 846 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 906 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 240, positive: 207, positive conditional: 0, positive unconditional: 207, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 240, positive: 207, positive conditional: 0, positive unconditional: 207, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 257, Positive cache size: 233, Positive conditional cache size: 0, Positive unconditional cache size: 233, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 803.3ms, 77 PlacesBefore, 77 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 1096 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 410 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 40, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 257, Positive cache size: 233, Positive conditional cache size: 0, Positive unconditional cache size: 233, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 454.8ms, 85 PlacesBefore, 85 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 478 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 82, positive: 70, positive conditional: 0, positive unconditional: 70, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, 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: 4, positive: 4, positive conditional: 0, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 82, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 261, Positive cache size: 237, Positive conditional cache size: 0, Positive unconditional cache size: 237, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 179.8ms, 90 PlacesBefore, 90 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 1274 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 430 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 32, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 261, Positive cache size: 237, Positive conditional cache size: 0, Positive unconditional cache size: 237, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5566.1ms, 94 PlacesBefore, 88 PlacesAfterwards, 65 TransitionsBefore, 56 TransitionsAfterwards, 798 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 821 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 291, positive: 269, positive conditional: 0, positive unconditional: 269, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 291, positive: 259, positive conditional: 0, positive unconditional: 259, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1382.7ms, 65 PlacesBefore, 60 PlacesAfterwards, 36 TransitionsBefore, 35 TransitionsAfterwards, 178 CoEnabledTransitionPairs, 4 FixpointIterations, 1 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 18 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 18, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 0, Negative conditional cache size: 0, 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: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p3_EAX = 0; [L714] 0 int a = 0; [L715] 0 _Bool main$tmp_guard0; [L716] 0 _Bool main$tmp_guard1; [L718] 0 int x = 0; [L720] 0 int y = 0; [L722] 0 int z = 0; [L723] 0 _Bool z$flush_delayed; [L724] 0 int z$mem_tmp; [L725] 0 _Bool z$r_buff0_thd0; [L726] 0 _Bool z$r_buff0_thd1; [L727] 0 _Bool z$r_buff0_thd2; [L728] 0 _Bool z$r_buff0_thd3; [L729] 0 _Bool z$r_buff0_thd4; [L730] 0 _Bool z$r_buff1_thd0; [L731] 0 _Bool z$r_buff1_thd1; [L732] 0 _Bool z$r_buff1_thd2; [L733] 0 _Bool z$r_buff1_thd3; [L734] 0 _Bool z$r_buff1_thd4; [L735] 0 _Bool z$read_delayed; [L736] 0 int *z$read_delayed_var; [L737] 0 int z$w_buff0; [L738] 0 _Bool z$w_buff0_used; [L739] 0 int z$w_buff1; [L740] 0 _Bool z$w_buff1_used; [L741] 0 _Bool weak$$choice0; [L742] 0 _Bool weak$$choice2; [L834] 0 pthread_t t1537; [L835] FCALL, FORK 0 pthread_create(&t1537, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L836] 0 pthread_t t1538; [L837] FCALL, FORK 0 pthread_create(&t1538, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L838] 0 pthread_t t1539; [L839] FCALL, FORK 0 pthread_create(&t1539, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L840] 0 pthread_t t1540; [L841] FCALL, FORK 0 pthread_create(&t1540, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L796] 4 z$w_buff1 = z$w_buff0 [L797] 4 z$w_buff0 = 2 [L798] 4 z$w_buff1_used = z$w_buff0_used [L799] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L801] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L802] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L803] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L804] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L805] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L806] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L809] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L746] 1 a = 1 [L749] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L761] 2 x = 2 [L764] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L754] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L756] 1 return 0; [L769] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L771] 2 return 0; [L776] 3 y = 2 [L779] 3 z = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L783] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L783] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L784] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L784] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L785] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L785] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L786] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L786] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L789] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L791] 3 return 0; [L812] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L812] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L813] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L813] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L814] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L814] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L815] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L815] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L816] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L816] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L819] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L821] 4 return 0; [L843] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L848] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L848] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L849] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L849] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L850] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L850] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L851] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L851] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L854] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L855] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L856] 0 z$flush_delayed = weak$$choice2 [L857] 0 z$mem_tmp = z [L858] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L858] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L859] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L859] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L860] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L860] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L861] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L861] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L862] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L862] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L863] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L863] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L864] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L864] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L865] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2 && __unbuffered_p3_EAX == 0) [L866] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L866] 0 z = z$flush_delayed ? z$mem_tmp : z [L867] 0 z$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=54, weak$$choice2=255, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 111 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 28765.1ms, OverallIterations: 18, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2884.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8594.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 58 SDtfs, 40 SDslu, 24 SDs, 0 SdLazy, 383 SolverSat, 161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 501.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 479.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=709occurred in iteration=14, InterpolantAutomatonStates: 88, 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: 74.4ms SsaConstructionTime, 449.2ms SatisfiabilityAnalysisTime, 1159.0ms InterpolantComputationTime, 304 NumberOfCodeBlocks, 304 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 267 ConstructedInterpolants, 0 QuantifiedInterpolants, 1440 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 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...