/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix028_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:39:40,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:39:40,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:39:40,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:39:40,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:39:40,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:39:40,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:39:40,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:39:40,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:39:40,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:39:40,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:39:40,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:39:40,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:39:40,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:39:40,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:39:40,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:39:40,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:39:40,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:39:40,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:39:40,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:39:40,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:39:40,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:39:40,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:39:40,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:39:40,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 04:39:40,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 04:39:40,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 04:39:40,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 04:39:40,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 04:39:40,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 04:39:40,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 04:39:40,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 04:39:40,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 04:39:40,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 04:39:40,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 04:39:40,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 04:39:40,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 04:39:40,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 04:39:40,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:39:40,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:39:40,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:39:40,459 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf [2021-03-25 04:39:40,493 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:39:40,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:39:40,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:39:40,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:39:40,497 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:39:40,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:39:40,498 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:39:40,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:39:40,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:39:40,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:39:40,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:39:40,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:39:40,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:39:40,499 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:39:40,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:39:40,499 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:39:40,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:39:40,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:39:40,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:39:40,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:39:40,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:39:40,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:39:40,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:39:40,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:39:40,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:39:40,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:39:40,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:39:40,501 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:39:40,501 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:39:40,501 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:39:40,501 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:39:40,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:39:40,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:39:40,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:39:40,791 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:39:40,791 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:39:40,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix028_power.opt.i [2021-03-25 04:39:40,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91cfc01ec/80edcb2fdae64ec1be1aa35a37d1d852/FLAG103547ecf [2021-03-25 04:39:41,341 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:39:41,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix028_power.opt.i [2021-03-25 04:39:41,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91cfc01ec/80edcb2fdae64ec1be1aa35a37d1d852/FLAG103547ecf [2021-03-25 04:39:41,693 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91cfc01ec/80edcb2fdae64ec1be1aa35a37d1d852 [2021-03-25 04:39:41,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:39:41,696 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:39:41,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:39:41,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:39:41,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:39:41,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:39:41" (1/1) ... [2021-03-25 04:39:41,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@772c3bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:39:41, skipping insertion in model container [2021-03-25 04:39:41,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:39:41" (1/1) ... [2021-03-25 04:39:41,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:39:41,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:39:41,866 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/mix028_power.opt.i[950,963] [2021-03-25 04:39:42,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:39:42,130 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:39:42,141 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/mix028_power.opt.i[950,963] [2021-03-25 04:39:42,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:39:42,237 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:39:42,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:39:42 WrapperNode [2021-03-25 04:39:42,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:39:42,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:39:42,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:39:42,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:39:42,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:39:42" (1/1) ... [2021-03-25 04:39:42,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:39:42" (1/1) ... [2021-03-25 04:39:42,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:39:42,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:39:42,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:39:42,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:39:42,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:39:42" (1/1) ... [2021-03-25 04:39:42,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:39:42" (1/1) ... [2021-03-25 04:39:42,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:39:42" (1/1) ... [2021-03-25 04:39:42,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:39:42" (1/1) ... [2021-03-25 04:39:42,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:39:42" (1/1) ... [2021-03-25 04:39:42,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:39:42" (1/1) ... [2021-03-25 04:39:42,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:39:42" (1/1) ... [2021-03-25 04:39:42,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:39:42,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:39:42,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:39:42,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:39:42,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:39:42" (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 04:39:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:39:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:39:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:39:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:39:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:39:42,394 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:39:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:39:42,395 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:39:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 04:39:42,395 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 04:39:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:39:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:39:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:39:42,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:39:42,397 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 04:39:43,997 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:39:43,998 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 04:39:43,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:39:43 BoogieIcfgContainer [2021-03-25 04:39:43,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:39:44,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:39:44,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:39:44,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:39:44,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:39:41" (1/3) ... [2021-03-25 04:39:44,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9c79c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:39:44, skipping insertion in model container [2021-03-25 04:39:44,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:39:42" (2/3) ... [2021-03-25 04:39:44,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9c79c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:39:44, skipping insertion in model container [2021-03-25 04:39:44,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:39:43" (3/3) ... [2021-03-25 04:39:44,005 INFO L111 eAbstractionObserver]: Analyzing ICFG mix028_power.opt.i [2021-03-25 04:39:44,011 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:39:44,015 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 04:39:44,016 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:39:44,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,044 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,044 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,045 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,045 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,046 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,048 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,048 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,049 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,049 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,049 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,049 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,049 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,050 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,053 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,053 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,053 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,053 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,053 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,053 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,053 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,054 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,059 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,059 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,061 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,061 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,061 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,064 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,064 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:39:44,066 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:39:44,081 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-25 04:39:44,098 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:39:44,099 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:39:44,099 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:39:44,099 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:39:44,099 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:39:44,099 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:39:44,099 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:39:44,099 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:39:44,108 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 99 transitions, 213 flow [2021-03-25 04:39:44,140 INFO L129 PetriNetUnfolder]: 2/96 cut-off events. [2021-03-25 04:39:44,141 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:39:44,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-03-25 04:39:44,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 99 transitions, 213 flow [2021-03-25 04:39:44,148 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 96 transitions, 201 flow [2021-03-25 04:39:44,149 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:39:44,157 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 96 transitions, 201 flow [2021-03-25 04:39:44,159 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 96 transitions, 201 flow [2021-03-25 04:39:44,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 96 transitions, 201 flow [2021-03-25 04:39:44,177 INFO L129 PetriNetUnfolder]: 2/96 cut-off events. [2021-03-25 04:39:44,178 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:39:44,178 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-03-25 04:39:44,181 INFO L142 LiptonReduction]: Number of co-enabled transitions 1770 [2021-03-25 04:39:45,093 WARN L205 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-03-25 04:39:45,401 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 04:39:46,840 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-03-25 04:39:47,461 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-25 04:39:48,384 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:39:48,869 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2021-03-25 04:39:48,995 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-25 04:39:50,119 WARN L205 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-03-25 04:39:50,379 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-03-25 04:39:51,050 WARN L205 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-25 04:39:51,734 WARN L205 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-25 04:39:51,988 INFO L154 LiptonReduction]: Checked pairs total: 3423 [2021-03-25 04:39:51,988 INFO L156 LiptonReduction]: Total number of compositions: 67 [2021-03-25 04:39:51,990 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7842 [2021-03-25 04:39:51,998 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-25 04:39:51,998 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:39:51,999 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:39:51,999 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:39:51,999 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:39:52,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:39:52,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1762051857, now seen corresponding path program 1 times [2021-03-25 04:39:52,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:39:52,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904924573] [2021-03-25 04:39:52,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:39:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:39:52,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:52,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:39:52,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:52,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:39:52,293 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 04:39:52,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904924573] [2021-03-25 04:39:52,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:39:52,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:39:52,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252459665] [2021-03-25 04:39:52,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:39:52,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:39:52,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:39:52,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:39:52,318 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 166 [2021-03-25 04:39:52,323 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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 04:39:52,323 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:39:52,323 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 166 [2021-03-25 04:39:52,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:39:52,447 INFO L129 PetriNetUnfolder]: 69/186 cut-off events. [2021-03-25 04:39:52,448 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:39:52,449 INFO L84 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 186 events. 69/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 898 event pairs, 13 based on Foata normal form. 10/174 useless extension candidates. Maximal degree in co-relation 295. Up to 89 conditions per place. [2021-03-25 04:39:52,452 INFO L132 encePairwiseOnDemand]: 162/166 looper letters, 9 selfloop transitions, 2 changer transitions 4/41 dead transitions. [2021-03-25 04:39:52,452 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 41 transitions, 117 flow [2021-03-25 04:39:52,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:39:52,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:39:52,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2021-03-25 04:39:52,469 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8875502008032129 [2021-03-25 04:39:52,469 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 442 transitions. [2021-03-25 04:39:52,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 442 transitions. [2021-03-25 04:39:52,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:39:52,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 442 transitions. [2021-03-25 04:39:52,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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 04:39:52,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 04:39:52,485 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 04:39:52,486 INFO L185 Difference]: Start difference. First operand has 48 places, 39 transitions, 87 flow. Second operand 3 states and 442 transitions. [2021-03-25 04:39:52,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 41 transitions, 117 flow [2021-03-25 04:39:52,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 114 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 04:39:52,490 INFO L241 Difference]: Finished difference. Result has 45 places, 33 transitions, 76 flow [2021-03-25 04:39:52,492 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2021-03-25 04:39:52,492 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2021-03-25 04:39:52,492 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:39:52,493 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 33 transitions, 76 flow [2021-03-25 04:39:52,494 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 33 transitions, 76 flow [2021-03-25 04:39:52,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 33 transitions, 76 flow [2021-03-25 04:39:52,499 INFO L129 PetriNetUnfolder]: 0/33 cut-off events. [2021-03-25 04:39:52,499 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:39:52,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 33 events. 0/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:39:52,501 INFO L142 LiptonReduction]: Number of co-enabled transitions 290 [2021-03-25 04:39:52,980 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:39:53,370 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:39:53,979 WARN L205 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 04:39:54,614 WARN L205 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 04:39:55,254 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-25 04:39:55,462 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-25 04:39:55,530 INFO L154 LiptonReduction]: Checked pairs total: 1380 [2021-03-25 04:39:55,530 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-25 04:39:55,530 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3038 [2021-03-25 04:39:55,531 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 58 flow [2021-03-25 04:39:55,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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 04:39:55,531 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:39:55,531 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 04:39:55,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:39:55,532 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:39:55,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:39:55,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1872499291, now seen corresponding path program 1 times [2021-03-25 04:39:55,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:39:55,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901037401] [2021-03-25 04:39:55,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:39:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:39:55,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:55,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:39:55,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:55,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:39:55,704 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-25 04:39:55,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 04:39:55,708 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 04:39:55,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901037401] [2021-03-25 04:39:55,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:39:55,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:39:55,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409471107] [2021-03-25 04:39:55,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:39:55,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:39:55,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:39:55,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:39:55,717 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 175 [2021-03-25 04:39:55,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 151.75) internal successors, (607), 4 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:39:55,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:39:55,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 175 [2021-03-25 04:39:55,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:39:55,736 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-25 04:39:55,736 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:39:55,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 24 events. 0/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 04:39:55,736 INFO L132 encePairwiseOnDemand]: 172/175 looper letters, 1 selfloop transitions, 2 changer transitions 1/24 dead transitions. [2021-03-25 04:39:55,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 24 transitions, 64 flow [2021-03-25 04:39:55,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:39:55,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:39:55,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions. [2021-03-25 04:39:55,738 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8704761904761905 [2021-03-25 04:39:55,738 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 457 transitions. [2021-03-25 04:39:55,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 457 transitions. [2021-03-25 04:39:55,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:39:55,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 457 transitions. [2021-03-25 04:39:55,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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 04:39:55,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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 04:39:55,742 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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 04:39:55,742 INFO L185 Difference]: Start difference. First operand has 33 places, 24 transitions, 58 flow. Second operand 3 states and 457 transitions. [2021-03-25 04:39:55,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 24 transitions, 64 flow [2021-03-25 04:39:55,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 24 transitions, 60 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:39:55,743 INFO L241 Difference]: Finished difference. Result has 34 places, 23 transitions, 60 flow [2021-03-25 04:39:55,743 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2021-03-25 04:39:55,744 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -14 predicate places. [2021-03-25 04:39:55,744 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:39:55,744 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 23 transitions, 60 flow [2021-03-25 04:39:55,744 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 23 transitions, 60 flow [2021-03-25 04:39:55,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 23 transitions, 60 flow [2021-03-25 04:39:55,748 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-03-25 04:39:55,748 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:39:55,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 23 events. 0/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 04:39:55,748 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-25 04:39:56,043 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2021-03-25 04:39:56,200 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-03-25 04:39:56,469 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2021-03-25 04:39:56,597 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-03-25 04:39:56,600 INFO L154 LiptonReduction]: Checked pairs total: 588 [2021-03-25 04:39:56,600 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:39:56,600 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 856 [2021-03-25 04:39:56,601 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 58 flow [2021-03-25 04:39:56,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 151.75) internal successors, (607), 4 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:39:56,602 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:39:56,602 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:39:56,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:39:56,602 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:39:56,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:39:56,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1352985518, now seen corresponding path program 1 times [2021-03-25 04:39:56,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:39:56,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026746164] [2021-03-25 04:39:56,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:39:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:39:56,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:56,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:39:56,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:56,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:39:56,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:56,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:39:56,739 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 04:39:56,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026746164] [2021-03-25 04:39:56,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:39:56,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:39:56,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793391874] [2021-03-25 04:39:56,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:39:56,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:39:56,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:39:56,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:39:56,742 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 176 [2021-03-25 04:39:56,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 58 flow. Second operand has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 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 04:39:56,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:39:56,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 176 [2021-03-25 04:39:56,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:39:56,812 INFO L129 PetriNetUnfolder]: 84/173 cut-off events. [2021-03-25 04:39:56,813 INFO L130 PetriNetUnfolder]: For 8/15 co-relation queries the response was YES. [2021-03-25 04:39:56,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 173 events. 84/173 cut-off events. For 8/15 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 742 event pairs, 52 based on Foata normal form. 4/163 useless extension candidates. Maximal degree in co-relation 333. Up to 131 conditions per place. [2021-03-25 04:39:56,814 INFO L132 encePairwiseOnDemand]: 169/176 looper letters, 9 selfloop transitions, 8 changer transitions 0/31 dead transitions. [2021-03-25 04:39:56,814 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 31 transitions, 112 flow [2021-03-25 04:39:56,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:39:56,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:39:56,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 558 transitions. [2021-03-25 04:39:56,817 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7926136363636364 [2021-03-25 04:39:56,817 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 558 transitions. [2021-03-25 04:39:56,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 558 transitions. [2021-03-25 04:39:56,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:39:56,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 558 transitions. [2021-03-25 04:39:56,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 139.5) internal successors, (558), 4 states have internal predecessors, (558), 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 04:39:56,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 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 04:39:56,820 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 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 04:39:56,820 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 58 flow. Second operand 4 states and 558 transitions. [2021-03-25 04:39:56,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 31 transitions, 112 flow [2021-03-25 04:39:56,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 31 transitions, 108 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:39:56,822 INFO L241 Difference]: Finished difference. Result has 35 places, 29 transitions, 109 flow [2021-03-25 04:39:56,822 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2021-03-25 04:39:56,822 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -13 predicate places. [2021-03-25 04:39:56,822 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:39:56,822 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 29 transitions, 109 flow [2021-03-25 04:39:56,823 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 29 transitions, 109 flow [2021-03-25 04:39:56,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 29 transitions, 109 flow [2021-03-25 04:39:56,839 INFO L129 PetriNetUnfolder]: 30/103 cut-off events. [2021-03-25 04:39:56,839 INFO L130 PetriNetUnfolder]: For 27/31 co-relation queries the response was YES. [2021-03-25 04:39:56,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 103 events. 30/103 cut-off events. For 27/31 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 435 event pairs, 10 based on Foata normal form. 1/97 useless extension candidates. Maximal degree in co-relation 210. Up to 51 conditions per place. [2021-03-25 04:39:56,841 INFO L142 LiptonReduction]: Number of co-enabled transitions 310 [2021-03-25 04:39:56,844 INFO L154 LiptonReduction]: Checked pairs total: 204 [2021-03-25 04:39:56,844 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:39:56,844 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-25 04:39:56,845 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 109 flow [2021-03-25 04:39:56,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 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 04:39:56,845 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:39:56,846 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:39:56,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:39:56,846 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:39:56,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:39:56,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1086441850, now seen corresponding path program 1 times [2021-03-25 04:39:56,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:39:56,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749629845] [2021-03-25 04:39:56,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:39:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:39:56,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:56,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 04:39:56,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:56,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:39:56,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:56,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:39:56,976 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 04:39:56,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749629845] [2021-03-25 04:39:56,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:39:56,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:39:56,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128984212] [2021-03-25 04:39:56,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:39:56,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:39:56,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:39:56,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:39:56,982 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 176 [2021-03-25 04:39:56,983 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 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 04:39:56,983 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:39:56,983 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 176 [2021-03-25 04:39:56,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:39:57,062 INFO L129 PetriNetUnfolder]: 80/169 cut-off events. [2021-03-25 04:39:57,063 INFO L130 PetriNetUnfolder]: For 110/222 co-relation queries the response was YES. [2021-03-25 04:39:57,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 169 events. 80/169 cut-off events. For 110/222 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 738 event pairs, 52 based on Foata normal form. 15/171 useless extension candidates. Maximal degree in co-relation 472. Up to 125 conditions per place. [2021-03-25 04:39:57,066 INFO L132 encePairwiseOnDemand]: 170/176 looper letters, 10 selfloop transitions, 9 changer transitions 0/33 dead transitions. [2021-03-25 04:39:57,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 160 flow [2021-03-25 04:39:57,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:39:57,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:39:57,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 545 transitions. [2021-03-25 04:39:57,069 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7741477272727273 [2021-03-25 04:39:57,070 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 545 transitions. [2021-03-25 04:39:57,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 545 transitions. [2021-03-25 04:39:57,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:39:57,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 545 transitions. [2021-03-25 04:39:57,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 136.25) internal successors, (545), 4 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:39:57,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 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 04:39:57,073 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 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 04:39:57,073 INFO L185 Difference]: Start difference. First operand has 35 places, 29 transitions, 109 flow. Second operand 4 states and 545 transitions. [2021-03-25 04:39:57,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 160 flow [2021-03-25 04:39:57,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 33 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 04:39:57,076 INFO L241 Difference]: Finished difference. Result has 39 places, 31 transitions, 147 flow [2021-03-25 04:39:57,076 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=147, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2021-03-25 04:39:57,077 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -9 predicate places. [2021-03-25 04:39:57,077 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:39:57,077 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 31 transitions, 147 flow [2021-03-25 04:39:57,077 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 31 transitions, 147 flow [2021-03-25 04:39:57,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 31 transitions, 147 flow [2021-03-25 04:39:57,091 INFO L129 PetriNetUnfolder]: 42/111 cut-off events. [2021-03-25 04:39:57,091 INFO L130 PetriNetUnfolder]: For 85/114 co-relation queries the response was YES. [2021-03-25 04:39:57,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 111 events. 42/111 cut-off events. For 85/114 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 432 event pairs, 17 based on Foata normal form. 1/105 useless extension candidates. Maximal degree in co-relation 305. Up to 58 conditions per place. [2021-03-25 04:39:57,093 INFO L142 LiptonReduction]: Number of co-enabled transitions 320 [2021-03-25 04:39:57,096 INFO L154 LiptonReduction]: Checked pairs total: 283 [2021-03-25 04:39:57,096 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:39:57,096 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-25 04:39:57,098 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 147 flow [2021-03-25 04:39:57,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 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 04:39:57,098 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:39:57,098 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:39:57,098 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:39:57,098 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:39:57,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:39:57,099 INFO L82 PathProgramCache]: Analyzing trace with hash -17962883, now seen corresponding path program 1 times [2021-03-25 04:39:57,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:39:57,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522634524] [2021-03-25 04:39:57,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:39:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:39:57,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:57,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:39:57,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:57,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:39:57,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:57,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 04:39:57,204 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 04:39:57,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522634524] [2021-03-25 04:39:57,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:39:57,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:39:57,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21240993] [2021-03-25 04:39:57,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:39:57,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:39:57,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:39:57,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:39:57,207 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 176 [2021-03-25 04:39:57,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 147 flow. Second operand has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 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 04:39:57,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:39:57,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 176 [2021-03-25 04:39:57,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:39:57,297 INFO L129 PetriNetUnfolder]: 72/157 cut-off events. [2021-03-25 04:39:57,297 INFO L130 PetriNetUnfolder]: For 217/413 co-relation queries the response was YES. [2021-03-25 04:39:57,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 157 events. 72/157 cut-off events. For 217/413 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 651 event pairs, 26 based on Foata normal form. 13/162 useless extension candidates. Maximal degree in co-relation 524. Up to 103 conditions per place. [2021-03-25 04:39:57,299 INFO L132 encePairwiseOnDemand]: 172/176 looper letters, 18 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2021-03-25 04:39:57,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 36 transitions, 213 flow [2021-03-25 04:39:57,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:39:57,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:39:57,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 556 transitions. [2021-03-25 04:39:57,302 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7897727272727273 [2021-03-25 04:39:57,302 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 556 transitions. [2021-03-25 04:39:57,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 556 transitions. [2021-03-25 04:39:57,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:39:57,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 556 transitions. [2021-03-25 04:39:57,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 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 04:39:57,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 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 04:39:57,306 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 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 04:39:57,306 INFO L185 Difference]: Start difference. First operand has 39 places, 31 transitions, 147 flow. Second operand 4 states and 556 transitions. [2021-03-25 04:39:57,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 36 transitions, 213 flow [2021-03-25 04:39:57,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 36 transitions, 202 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:39:57,309 INFO L241 Difference]: Finished difference. Result has 41 places, 31 transitions, 148 flow [2021-03-25 04:39:57,310 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2021-03-25 04:39:57,310 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -7 predicate places. [2021-03-25 04:39:57,310 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:39:57,310 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 31 transitions, 148 flow [2021-03-25 04:39:57,310 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 31 transitions, 148 flow [2021-03-25 04:39:57,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 31 transitions, 148 flow [2021-03-25 04:39:57,326 INFO L129 PetriNetUnfolder]: 37/108 cut-off events. [2021-03-25 04:39:57,326 INFO L130 PetriNetUnfolder]: For 115/162 co-relation queries the response was YES. [2021-03-25 04:39:57,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 108 events. 37/108 cut-off events. For 115/162 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 402 event pairs, 15 based on Foata normal form. 3/106 useless extension candidates. Maximal degree in co-relation 279. Up to 52 conditions per place. [2021-03-25 04:39:57,328 INFO L142 LiptonReduction]: Number of co-enabled transitions 320 [2021-03-25 04:39:57,334 INFO L154 LiptonReduction]: Checked pairs total: 252 [2021-03-25 04:39:57,334 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:39:57,337 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-25 04:39:57,338 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 148 flow [2021-03-25 04:39:57,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 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 04:39:57,338 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:39:57,338 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:39:57,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:39:57,339 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:39:57,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:39:57,339 INFO L82 PathProgramCache]: Analyzing trace with hash 501611813, now seen corresponding path program 1 times [2021-03-25 04:39:57,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:39:57,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245656892] [2021-03-25 04:39:57,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:39:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:39:57,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:57,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:39:57,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:57,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:39:57,458 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.8 percent of original size [2021-03-25 04:39:57,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 04:39:57,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:57,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 04:39:57,487 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 04:39:57,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245656892] [2021-03-25 04:39:57,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:39:57,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:39:57,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362453207] [2021-03-25 04:39:57,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:39:57,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:39:57,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:39:57,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:39:57,490 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 176 [2021-03-25 04:39:57,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 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 04:39:57,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:39:57,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 176 [2021-03-25 04:39:57,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:39:57,595 INFO L129 PetriNetUnfolder]: 85/179 cut-off events. [2021-03-25 04:39:57,595 INFO L130 PetriNetUnfolder]: For 303/577 co-relation queries the response was YES. [2021-03-25 04:39:57,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 624 conditions, 179 events. 85/179 cut-off events. For 303/577 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 766 event pairs, 19 based on Foata normal form. 15/186 useless extension candidates. Maximal degree in co-relation 608. Up to 112 conditions per place. [2021-03-25 04:39:57,597 INFO L132 encePairwiseOnDemand]: 168/176 looper letters, 17 selfloop transitions, 11 changer transitions 0/42 dead transitions. [2021-03-25 04:39:57,597 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 253 flow [2021-03-25 04:39:57,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:39:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:39:57,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 676 transitions. [2021-03-25 04:39:57,600 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7681818181818182 [2021-03-25 04:39:57,600 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 676 transitions. [2021-03-25 04:39:57,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 676 transitions. [2021-03-25 04:39:57,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:39:57,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 676 transitions. [2021-03-25 04:39:57,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 135.2) internal successors, (676), 5 states have internal predecessors, (676), 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 04:39:57,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 04:39:57,608 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 04:39:57,608 INFO L185 Difference]: Start difference. First operand has 41 places, 31 transitions, 148 flow. Second operand 5 states and 676 transitions. [2021-03-25 04:39:57,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 253 flow [2021-03-25 04:39:57,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 42 transitions, 242 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 04:39:57,611 INFO L241 Difference]: Finished difference. Result has 45 places, 38 transitions, 215 flow [2021-03-25 04:39:57,611 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=215, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2021-03-25 04:39:57,612 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2021-03-25 04:39:57,612 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:39:57,612 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 38 transitions, 215 flow [2021-03-25 04:39:57,612 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 38 transitions, 215 flow [2021-03-25 04:39:57,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 38 transitions, 215 flow [2021-03-25 04:39:57,640 INFO L129 PetriNetUnfolder]: 81/178 cut-off events. [2021-03-25 04:39:57,641 INFO L130 PetriNetUnfolder]: For 392/534 co-relation queries the response was YES. [2021-03-25 04:39:57,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 620 conditions, 178 events. 81/178 cut-off events. For 392/534 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 789 event pairs, 33 based on Foata normal form. 1/171 useless extension candidates. Maximal degree in co-relation 604. Up to 90 conditions per place. [2021-03-25 04:39:57,643 INFO L142 LiptonReduction]: Number of co-enabled transitions 382 [2021-03-25 04:39:57,849 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 04:39:58,228 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 80 [2021-03-25 04:39:58,338 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-03-25 04:39:58,350 INFO L154 LiptonReduction]: Checked pairs total: 835 [2021-03-25 04:39:58,350 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:39:58,350 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 738 [2021-03-25 04:39:58,351 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 221 flow [2021-03-25 04:39:58,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 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 04:39:58,351 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:39:58,352 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:39:58,352 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:39:58,352 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:39:58,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:39:58,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1911537949, now seen corresponding path program 2 times [2021-03-25 04:39:58,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:39:58,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802366785] [2021-03-25 04:39:58,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:39:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:39:58,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:58,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:39:58,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:58,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:39:58,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:58,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 04:39:58,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:58,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 04:39:58,437 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 04:39:58,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802366785] [2021-03-25 04:39:58,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:39:58,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:39:58,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212812620] [2021-03-25 04:39:58,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:39:58,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:39:58,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:39:58,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:39:58,440 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 177 [2021-03-25 04:39:58,441 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 221 flow. Second operand has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 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 04:39:58,441 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:39:58,441 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 177 [2021-03-25 04:39:58,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:39:58,568 INFO L129 PetriNetUnfolder]: 90/205 cut-off events. [2021-03-25 04:39:58,569 INFO L130 PetriNetUnfolder]: For 670/1404 co-relation queries the response was YES. [2021-03-25 04:39:58,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 205 events. 90/205 cut-off events. For 670/1404 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 952 event pairs, 5 based on Foata normal form. 26/217 useless extension candidates. Maximal degree in co-relation 829. Up to 98 conditions per place. [2021-03-25 04:39:58,571 INFO L132 encePairwiseOnDemand]: 170/177 looper letters, 15 selfloop transitions, 19 changer transitions 0/48 dead transitions. [2021-03-25 04:39:58,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 48 transitions, 363 flow [2021-03-25 04:39:58,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:39:58,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:39:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 663 transitions. [2021-03-25 04:39:58,573 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7491525423728813 [2021-03-25 04:39:58,573 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 663 transitions. [2021-03-25 04:39:58,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 663 transitions. [2021-03-25 04:39:58,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:39:58,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 663 transitions. [2021-03-25 04:39:58,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 132.6) internal successors, (663), 5 states have internal predecessors, (663), 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 04:39:58,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 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 04:39:58,577 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 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 04:39:58,577 INFO L185 Difference]: Start difference. First operand has 45 places, 38 transitions, 221 flow. Second operand 5 states and 663 transitions. [2021-03-25 04:39:58,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 48 transitions, 363 flow [2021-03-25 04:39:58,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 48 transitions, 344 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-03-25 04:39:58,581 INFO L241 Difference]: Finished difference. Result has 50 places, 44 transitions, 318 flow [2021-03-25 04:39:58,581 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=318, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2021-03-25 04:39:58,581 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2021-03-25 04:39:58,581 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:39:58,581 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 44 transitions, 318 flow [2021-03-25 04:39:58,582 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 44 transitions, 318 flow [2021-03-25 04:39:58,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 44 transitions, 318 flow [2021-03-25 04:39:58,609 INFO L129 PetriNetUnfolder]: 87/197 cut-off events. [2021-03-25 04:39:58,610 INFO L130 PetriNetUnfolder]: For 756/1120 co-relation queries the response was YES. [2021-03-25 04:39:58,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 823 conditions, 197 events. 87/197 cut-off events. For 756/1120 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 908 event pairs, 26 based on Foata normal form. 3/190 useless extension candidates. Maximal degree in co-relation 804. Up to 92 conditions per place. [2021-03-25 04:39:58,612 INFO L142 LiptonReduction]: Number of co-enabled transitions 432 [2021-03-25 04:39:58,625 INFO L154 LiptonReduction]: Checked pairs total: 491 [2021-03-25 04:39:58,625 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:39:58,625 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-03-25 04:39:58,627 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 318 flow [2021-03-25 04:39:58,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 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 04:39:58,627 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:39:58,627 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:39:58,628 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:39:58,628 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:39:58,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:39:58,628 INFO L82 PathProgramCache]: Analyzing trace with hash 692369089, now seen corresponding path program 1 times [2021-03-25 04:39:58,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:39:58,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465258521] [2021-03-25 04:39:58,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:39:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:39:58,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:58,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:39:58,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:58,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:39:58,680 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 04:39:58,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465258521] [2021-03-25 04:39:58,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:39:58,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:39:58,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511329668] [2021-03-25 04:39:58,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:39:58,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:39:58,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:39:58,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:39:58,682 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 177 [2021-03-25 04:39:58,683 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 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 04:39:58,683 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:39:58,683 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 177 [2021-03-25 04:39:58,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:39:58,740 INFO L129 PetriNetUnfolder]: 146/355 cut-off events. [2021-03-25 04:39:58,741 INFO L130 PetriNetUnfolder]: For 1428/1658 co-relation queries the response was YES. [2021-03-25 04:39:58,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1416 conditions, 355 events. 146/355 cut-off events. For 1428/1658 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2027 event pairs, 35 based on Foata normal form. 26/356 useless extension candidates. Maximal degree in co-relation 1395. Up to 157 conditions per place. [2021-03-25 04:39:58,744 INFO L132 encePairwiseOnDemand]: 174/177 looper letters, 5 selfloop transitions, 2 changer transitions 0/46 dead transitions. [2021-03-25 04:39:58,744 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 46 transitions, 337 flow [2021-03-25 04:39:58,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:39:58,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:39:58,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 461 transitions. [2021-03-25 04:39:58,746 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8681732580037664 [2021-03-25 04:39:58,746 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 461 transitions. [2021-03-25 04:39:58,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 461 transitions. [2021-03-25 04:39:58,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:39:58,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 461 transitions. [2021-03-25 04:39:58,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 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 04:39:58,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:39:58,749 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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 04:39:58,749 INFO L185 Difference]: Start difference. First operand has 50 places, 44 transitions, 318 flow. Second operand 3 states and 461 transitions. [2021-03-25 04:39:58,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 46 transitions, 337 flow [2021-03-25 04:39:58,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 318 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-25 04:39:58,754 INFO L241 Difference]: Finished difference. Result has 52 places, 45 transitions, 311 flow [2021-03-25 04:39:58,754 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2021-03-25 04:39:58,754 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 4 predicate places. [2021-03-25 04:39:58,754 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:39:58,754 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 45 transitions, 311 flow [2021-03-25 04:39:58,754 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 45 transitions, 311 flow [2021-03-25 04:39:58,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 45 transitions, 311 flow [2021-03-25 04:39:58,791 INFO L129 PetriNetUnfolder]: 131/316 cut-off events. [2021-03-25 04:39:58,791 INFO L130 PetriNetUnfolder]: For 1174/1464 co-relation queries the response was YES. [2021-03-25 04:39:58,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1231 conditions, 316 events. 131/316 cut-off events. For 1174/1464 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1748 event pairs, 33 based on Foata normal form. 5/302 useless extension candidates. Maximal degree in co-relation 1211. Up to 144 conditions per place. [2021-03-25 04:39:58,796 INFO L142 LiptonReduction]: Number of co-enabled transitions 446 [2021-03-25 04:39:58,825 INFO L154 LiptonReduction]: Checked pairs total: 434 [2021-03-25 04:39:58,825 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:39:58,825 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-25 04:39:58,826 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 311 flow [2021-03-25 04:39:58,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 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 04:39:58,826 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:39:58,826 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:39:58,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:39:58,826 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:39:58,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:39:58,827 INFO L82 PathProgramCache]: Analyzing trace with hash 346282521, now seen corresponding path program 2 times [2021-03-25 04:39:58,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:39:58,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319726025] [2021-03-25 04:39:58,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:39:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:39:58,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:58,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:39:58,902 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:39:58,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:39:58,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:58,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:39:58,910 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 04:39:58,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319726025] [2021-03-25 04:39:58,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:39:58,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:39:58,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366714844] [2021-03-25 04:39:58,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:39:58,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:39:58,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:39:58,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:39:58,913 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 177 [2021-03-25 04:39:58,914 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 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 04:39:58,914 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:39:58,914 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 177 [2021-03-25 04:39:58,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:39:59,025 INFO L129 PetriNetUnfolder]: 219/507 cut-off events. [2021-03-25 04:39:59,025 INFO L130 PetriNetUnfolder]: For 1789/2035 co-relation queries the response was YES. [2021-03-25 04:39:59,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1821 conditions, 507 events. 219/507 cut-off events. For 1789/2035 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 3142 event pairs, 67 based on Foata normal form. 115/584 useless extension candidates. Maximal degree in co-relation 1799. Up to 226 conditions per place. [2021-03-25 04:39:59,029 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 10 selfloop transitions, 8 changer transitions 2/53 dead transitions. [2021-03-25 04:39:59,029 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 53 transitions, 352 flow [2021-03-25 04:39:59,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:39:59,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:39:59,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 743 transitions. [2021-03-25 04:39:59,032 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8395480225988701 [2021-03-25 04:39:59,032 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 743 transitions. [2021-03-25 04:39:59,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 743 transitions. [2021-03-25 04:39:59,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:39:59,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 743 transitions. [2021-03-25 04:39:59,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 148.6) internal successors, (743), 5 states have internal predecessors, (743), 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 04:39:59,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 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 04:39:59,036 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 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 04:39:59,036 INFO L185 Difference]: Start difference. First operand has 52 places, 45 transitions, 311 flow. Second operand 5 states and 743 transitions. [2021-03-25 04:39:59,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 53 transitions, 352 flow [2021-03-25 04:39:59,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 53 transitions, 342 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-25 04:39:59,041 INFO L241 Difference]: Finished difference. Result has 58 places, 48 transitions, 339 flow [2021-03-25 04:39:59,041 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=339, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2021-03-25 04:39:59,042 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 10 predicate places. [2021-03-25 04:39:59,042 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:39:59,042 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 48 transitions, 339 flow [2021-03-25 04:39:59,042 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 48 transitions, 339 flow [2021-03-25 04:39:59,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 48 transitions, 339 flow [2021-03-25 04:39:59,092 INFO L129 PetriNetUnfolder]: 212/491 cut-off events. [2021-03-25 04:39:59,092 INFO L130 PetriNetUnfolder]: For 1569/1861 co-relation queries the response was YES. [2021-03-25 04:39:59,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1881 conditions, 491 events. 212/491 cut-off events. For 1569/1861 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3103 event pairs, 68 based on Foata normal form. 30/470 useless extension candidates. Maximal degree in co-relation 1857. Up to 219 conditions per place. [2021-03-25 04:39:59,099 INFO L142 LiptonReduction]: Number of co-enabled transitions 532 [2021-03-25 04:39:59,106 INFO L154 LiptonReduction]: Checked pairs total: 259 [2021-03-25 04:39:59,106 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:39:59,106 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-03-25 04:39:59,107 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 339 flow [2021-03-25 04:39:59,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 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 04:39:59,108 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:39:59,108 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:39:59,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 04:39:59,108 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:39:59,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:39:59,108 INFO L82 PathProgramCache]: Analyzing trace with hash -538412262, now seen corresponding path program 1 times [2021-03-25 04:39:59,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:39:59,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395420985] [2021-03-25 04:39:59,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:39:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:39:59,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:59,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:39:59,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:59,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:39:59,170 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:39:59,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:39:59,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:59,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:39:59,178 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 04:39:59,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395420985] [2021-03-25 04:39:59,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:39:59,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:39:59,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383061222] [2021-03-25 04:39:59,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:39:59,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:39:59,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:39:59,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:39:59,179 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 177 [2021-03-25 04:39:59,180 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 339 flow. Second operand has 5 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 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 04:39:59,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:39:59,180 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 177 [2021-03-25 04:39:59,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:39:59,267 INFO L129 PetriNetUnfolder]: 110/331 cut-off events. [2021-03-25 04:39:59,267 INFO L130 PetriNetUnfolder]: For 1508/2251 co-relation queries the response was YES. [2021-03-25 04:39:59,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1360 conditions, 331 events. 110/331 cut-off events. For 1508/2251 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2063 event pairs, 11 based on Foata normal form. 247/554 useless extension candidates. Maximal degree in co-relation 1334. Up to 172 conditions per place. [2021-03-25 04:39:59,270 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 5 selfloop transitions, 15 changer transitions 3/54 dead transitions. [2021-03-25 04:39:59,270 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 54 transitions, 410 flow [2021-03-25 04:39:59,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:39:59,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:39:59,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1040 transitions. [2021-03-25 04:39:59,273 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8393866020984665 [2021-03-25 04:39:59,273 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1040 transitions. [2021-03-25 04:39:59,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1040 transitions. [2021-03-25 04:39:59,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:39:59,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1040 transitions. [2021-03-25 04:39:59,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 148.57142857142858) internal successors, (1040), 7 states have internal predecessors, (1040), 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 04:39:59,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 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 04:39:59,279 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 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 04:39:59,279 INFO L185 Difference]: Start difference. First operand has 58 places, 48 transitions, 339 flow. Second operand 7 states and 1040 transitions. [2021-03-25 04:39:59,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 54 transitions, 410 flow [2021-03-25 04:39:59,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 54 transitions, 377 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-25 04:39:59,283 INFO L241 Difference]: Finished difference. Result has 61 places, 51 transitions, 372 flow [2021-03-25 04:39:59,283 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=372, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2021-03-25 04:39:59,284 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 13 predicate places. [2021-03-25 04:39:59,284 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:39:59,284 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 51 transitions, 372 flow [2021-03-25 04:39:59,284 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 51 transitions, 372 flow [2021-03-25 04:39:59,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 51 transitions, 372 flow [2021-03-25 04:39:59,314 INFO L129 PetriNetUnfolder]: 96/283 cut-off events. [2021-03-25 04:39:59,314 INFO L130 PetriNetUnfolder]: For 1229/1654 co-relation queries the response was YES. [2021-03-25 04:39:59,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1200 conditions, 283 events. 96/283 cut-off events. For 1229/1654 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1689 event pairs, 14 based on Foata normal form. 19/278 useless extension candidates. Maximal degree in co-relation 1175. Up to 134 conditions per place. [2021-03-25 04:39:59,318 INFO L142 LiptonReduction]: Number of co-enabled transitions 588 [2021-03-25 04:39:59,330 INFO L154 LiptonReduction]: Checked pairs total: 431 [2021-03-25 04:39:59,330 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 04:39:59,330 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-03-25 04:39:59,332 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 356 flow [2021-03-25 04:39:59,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 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 04:39:59,333 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:39:59,333 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:39:59,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 04:39:59,333 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:39:59,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:39:59,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1828745156, now seen corresponding path program 1 times [2021-03-25 04:39:59,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:39:59,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646049362] [2021-03-25 04:39:59,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:39:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:39:59,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:59,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:39:59,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:59,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:39:59,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:59,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:39:59,412 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:39:59,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:39:59,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:39:59,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:39:59,420 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 04:39:59,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646049362] [2021-03-25 04:39:59,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:39:59,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:39:59,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873192065] [2021-03-25 04:39:59,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:39:59,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:39:59,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:39:59,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:39:59,422 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 177 [2021-03-25 04:39:59,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 356 flow. Second operand has 6 states, 6 states have (on average 145.83333333333334) internal successors, (875), 6 states have internal predecessors, (875), 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 04:39:59,423 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:39:59,423 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 177 [2021-03-25 04:39:59,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:39:59,487 INFO L129 PetriNetUnfolder]: 57/177 cut-off events. [2021-03-25 04:39:59,487 INFO L130 PetriNetUnfolder]: For 813/967 co-relation queries the response was YES. [2021-03-25 04:39:59,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 748 conditions, 177 events. 57/177 cut-off events. For 813/967 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 811 event pairs, 3 based on Foata normal form. 61/230 useless extension candidates. Maximal degree in co-relation 721. Up to 77 conditions per place. [2021-03-25 04:39:59,489 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 2 selfloop transitions, 11 changer transitions 4/47 dead transitions. [2021-03-25 04:39:59,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 47 transitions, 361 flow [2021-03-25 04:39:59,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:39:59,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:39:59,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1033 transitions. [2021-03-25 04:39:59,492 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8337368845843423 [2021-03-25 04:39:59,492 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1033 transitions. [2021-03-25 04:39:59,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1033 transitions. [2021-03-25 04:39:59,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:39:59,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1033 transitions. [2021-03-25 04:39:59,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 147.57142857142858) internal successors, (1033), 7 states have internal predecessors, (1033), 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 04:39:59,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 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 04:39:59,497 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 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 04:39:59,497 INFO L185 Difference]: Start difference. First operand has 61 places, 49 transitions, 356 flow. Second operand 7 states and 1033 transitions. [2021-03-25 04:39:59,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 47 transitions, 361 flow [2021-03-25 04:39:59,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 47 transitions, 319 flow, removed 16 selfloop flow, removed 6 redundant places. [2021-03-25 04:39:59,500 INFO L241 Difference]: Finished difference. Result has 59 places, 43 transitions, 294 flow [2021-03-25 04:39:59,501 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=294, PETRI_PLACES=59, PETRI_TRANSITIONS=43} [2021-03-25 04:39:59,501 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2021-03-25 04:39:59,501 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:39:59,501 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 43 transitions, 294 flow [2021-03-25 04:39:59,501 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 43 transitions, 294 flow [2021-03-25 04:39:59,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 43 transitions, 294 flow [2021-03-25 04:39:59,517 INFO L129 PetriNetUnfolder]: 51/166 cut-off events. [2021-03-25 04:39:59,518 INFO L130 PetriNetUnfolder]: For 371/425 co-relation queries the response was YES. [2021-03-25 04:39:59,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 166 events. 51/166 cut-off events. For 371/425 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 754 event pairs, 1 based on Foata normal form. 1/159 useless extension candidates. Maximal degree in co-relation 620. Up to 49 conditions per place. [2021-03-25 04:39:59,520 INFO L142 LiptonReduction]: Number of co-enabled transitions 360 [2021-03-25 04:39:59,827 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-03-25 04:39:59,996 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-03-25 04:40:00,601 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 194 [2021-03-25 04:40:00,844 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-03-25 04:40:03,013 WARN L205 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 349 DAG size of output: 276 [2021-03-25 04:40:03,687 WARN L205 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-03-25 04:40:03,696 INFO L154 LiptonReduction]: Checked pairs total: 548 [2021-03-25 04:40:03,697 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:40:03,697 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4196 [2021-03-25 04:40:03,697 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 40 transitions, 280 flow [2021-03-25 04:40:03,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 145.83333333333334) internal successors, (875), 6 states have internal predecessors, (875), 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 04:40:03,698 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:03,698 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 04:40:03,698 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 04:40:03,698 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:03,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:03,698 INFO L82 PathProgramCache]: Analyzing trace with hash 2082579939, now seen corresponding path program 1 times [2021-03-25 04:40:03,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:03,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011427147] [2021-03-25 04:40:03,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:03,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:03,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:03,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:03,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:03,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:03,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:03,748 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 04:40:03,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011427147] [2021-03-25 04:40:03,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:03,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:40:03,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365067850] [2021-03-25 04:40:03,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:40:03,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:03,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:40:03,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:40:03,750 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 179 [2021-03-25 04:40:03,750 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 40 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 04:40:03,750 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:03,750 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 179 [2021-03-25 04:40:03,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:03,801 INFO L129 PetriNetUnfolder]: 98/272 cut-off events. [2021-03-25 04:40:03,801 INFO L130 PetriNetUnfolder]: For 1726/1844 co-relation queries the response was YES. [2021-03-25 04:40:03,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1057 conditions, 272 events. 98/272 cut-off events. For 1726/1844 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1501 event pairs, 9 based on Foata normal form. 36/296 useless extension candidates. Maximal degree in co-relation 1031. Up to 92 conditions per place. [2021-03-25 04:40:03,803 INFO L132 encePairwiseOnDemand]: 176/179 looper letters, 3 selfloop transitions, 1 changer transitions 9/41 dead transitions. [2021-03-25 04:40:03,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 41 transitions, 292 flow [2021-03-25 04:40:03,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:40:03,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:40:03,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 594 transitions. [2021-03-25 04:40:03,805 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8296089385474861 [2021-03-25 04:40:03,806 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 594 transitions. [2021-03-25 04:40:03,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 594 transitions. [2021-03-25 04:40:03,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:03,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 594 transitions. [2021-03-25 04:40:03,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 148.5) internal successors, (594), 4 states have internal predecessors, (594), 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 04:40:03,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 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 04:40:03,809 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 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 04:40:03,809 INFO L185 Difference]: Start difference. First operand has 55 places, 40 transitions, 280 flow. Second operand 4 states and 594 transitions. [2021-03-25 04:40:03,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 41 transitions, 292 flow [2021-03-25 04:40:03,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 41 transitions, 250 flow, removed 12 selfloop flow, removed 7 redundant places. [2021-03-25 04:40:03,813 INFO L241 Difference]: Finished difference. Result has 53 places, 32 transitions, 193 flow [2021-03-25 04:40:03,814 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=193, PETRI_PLACES=53, PETRI_TRANSITIONS=32} [2021-03-25 04:40:03,814 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 5 predicate places. [2021-03-25 04:40:03,814 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:03,814 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 32 transitions, 193 flow [2021-03-25 04:40:03,814 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 32 transitions, 193 flow [2021-03-25 04:40:03,814 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 32 transitions, 193 flow [2021-03-25 04:40:03,822 INFO L129 PetriNetUnfolder]: 20/70 cut-off events. [2021-03-25 04:40:03,822 INFO L130 PetriNetUnfolder]: For 178/189 co-relation queries the response was YES. [2021-03-25 04:40:03,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 70 events. 20/70 cut-off events. For 178/189 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 184 event pairs, 1 based on Foata normal form. 4/73 useless extension candidates. Maximal degree in co-relation 220. Up to 21 conditions per place. [2021-03-25 04:40:03,823 INFO L142 LiptonReduction]: Number of co-enabled transitions 170 [2021-03-25 04:40:04,174 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 66 [2021-03-25 04:40:04,465 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 85 [2021-03-25 04:40:04,521 INFO L154 LiptonReduction]: Checked pairs total: 50 [2021-03-25 04:40:04,522 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 04:40:04,522 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 708 [2021-03-25 04:40:04,522 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 29 transitions, 195 flow [2021-03-25 04:40:04,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 04:40:04,523 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:04,523 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 04:40:04,523 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 04:40:04,523 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:04,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:04,523 INFO L82 PathProgramCache]: Analyzing trace with hash 696102159, now seen corresponding path program 1 times [2021-03-25 04:40:04,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:04,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674843859] [2021-03-25 04:40:04,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:40:04,549 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:40:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:40:04,581 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:40:04,658 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:40:04,658 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:40:04,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 04:40:04,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:40:04 BasicIcfg [2021-03-25 04:40:04,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:40:04,734 INFO L168 Benchmark]: Toolchain (without parser) took 23037.75 ms. Allocated memory was 339.7 MB in the beginning and 736.1 MB in the end (delta: 396.4 MB). Free memory was 303.4 MB in the beginning and 694.5 MB in the end (delta: -391.2 MB). Peak memory consumption was 348.7 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:04,734 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 339.7 MB. Free memory is still 321.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:40:04,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.82 ms. Allocated memory is still 339.7 MB. Free memory was 303.1 MB in the beginning and 300.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:04,735 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.50 ms. Allocated memory is still 339.7 MB. Free memory was 300.5 MB in the beginning and 297.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:04,735 INFO L168 Benchmark]: Boogie Preprocessor took 32.45 ms. Allocated memory is still 339.7 MB. Free memory was 297.4 MB in the beginning and 295.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:04,735 INFO L168 Benchmark]: RCFGBuilder took 1679.25 ms. Allocated memory is still 339.7 MB. Free memory was 295.3 MB in the beginning and 249.5 MB in the end (delta: 45.7 MB). Peak memory consumption was 163.2 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:04,735 INFO L168 Benchmark]: TraceAbstraction took 20732.67 ms. Allocated memory was 339.7 MB in the beginning and 736.1 MB in the end (delta: 396.4 MB). Free memory was 248.5 MB in the beginning and 694.5 MB in the end (delta: -446.0 MB). Peak memory consumption was 291.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:04,736 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 339.7 MB. Free memory is still 321.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 540.82 ms. Allocated memory is still 339.7 MB. Free memory was 303.1 MB in the beginning and 300.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 47.50 ms. Allocated memory is still 339.7 MB. Free memory was 300.5 MB in the beginning and 297.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.45 ms. Allocated memory is still 339.7 MB. Free memory was 297.4 MB in the beginning and 295.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1679.25 ms. Allocated memory is still 339.7 MB. Free memory was 295.3 MB in the beginning and 249.5 MB in the end (delta: 45.7 MB). Peak memory consumption was 163.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 20732.67 ms. Allocated memory was 339.7 MB in the beginning and 736.1 MB in the end (delta: 396.4 MB). Free memory was 248.5 MB in the beginning and 694.5 MB in the end (delta: -446.0 MB). Peak memory consumption was 291.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7829.1ms, 104 PlacesBefore, 48 PlacesAfterwards, 96 TransitionsBefore, 39 TransitionsAfterwards, 1770 CoEnabledTransitionPairs, 5 FixpointIterations, 27 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 67 TotalNumberOfCompositions, 3423 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1393, positive: 1301, positive conditional: 0, positive unconditional: 1301, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 858, positive: 832, positive conditional: 0, positive unconditional: 832, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 858, positive: 832, positive conditional: 0, positive unconditional: 832, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1393, positive: 469, positive conditional: 0, positive unconditional: 469, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 858, unknown conditional: 0, unknown unconditional: 858] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3036.2ms, 45 PlacesBefore, 33 PlacesAfterwards, 33 TransitionsBefore, 24 TransitionsAfterwards, 290 CoEnabledTransitionPairs, 4 FixpointIterations, 8 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 1380 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 249, positive: 154, positive conditional: 0, positive unconditional: 154, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 37, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 37, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 249, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 37, unknown conditional: 0, unknown unconditional: 37] , Statistics on independence cache: Total cache size (in pairs): 97, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 856.1ms, 34 PlacesBefore, 32 PlacesAfterwards, 23 TransitionsBefore, 22 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 588 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 143, positive: 99, positive conditional: 0, positive unconditional: 99, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 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: 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] , Cache Queries: [ total: 143, positive: 92, positive conditional: 0, positive unconditional: 92, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 104, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.1ms, 35 PlacesBefore, 35 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 310 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 204 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 73, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 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: 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] , Cache Queries: [ total: 73, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 106, Positive cache size: 83, Positive conditional cache size: 0, Positive unconditional cache size: 83, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.2ms, 39 PlacesBefore, 39 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 320 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 283 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 92, positive: 76, positive conditional: 0, positive unconditional: 76, 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: 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: 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] , Cache Queries: [ total: 92, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 106, Positive cache size: 83, Positive conditional cache size: 0, Positive unconditional cache size: 83, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.6ms, 41 PlacesBefore, 41 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 320 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 252 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 78, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 78, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 83, Positive conditional cache size: 0, Positive unconditional cache size: 83, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 738.1ms, 45 PlacesBefore, 45 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 382 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 835 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 253, positive: 214, positive conditional: 0, positive unconditional: 214, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 253, positive: 204, positive conditional: 0, positive unconditional: 204, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 113, Positive cache size: 92, Positive conditional cache size: 0, Positive unconditional cache size: 92, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.2ms, 50 PlacesBefore, 50 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 432 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 491 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 128, positive: 107, positive conditional: 0, positive unconditional: 107, negative: 21, negative conditional: 0, negative unconditional: 21, 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: 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] , Cache Queries: [ total: 128, positive: 107, positive conditional: 0, positive unconditional: 107, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 113, Positive cache size: 92, Positive conditional cache size: 0, Positive unconditional cache size: 92, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.6ms, 52 PlacesBefore, 52 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 446 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 434 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 110, positive: 92, positive conditional: 0, positive unconditional: 92, 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: 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: 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] , Cache Queries: [ total: 110, positive: 92, positive conditional: 0, positive unconditional: 92, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 113, Positive cache size: 92, Positive conditional cache size: 0, Positive unconditional cache size: 92, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.2ms, 58 PlacesBefore, 58 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 532 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 259 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 148, positive: 137, positive conditional: 0, positive unconditional: 137, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 148, positive: 132, positive conditional: 0, positive unconditional: 132, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 118, Positive cache size: 97, Positive conditional cache size: 0, Positive unconditional cache size: 97, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.9ms, 61 PlacesBefore, 61 PlacesAfterwards, 51 TransitionsBefore, 49 TransitionsAfterwards, 588 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 431 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 292, positive: 278, positive conditional: 0, positive unconditional: 278, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 292, positive: 277, positive conditional: 0, positive unconditional: 277, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 104, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4195.5ms, 59 PlacesBefore, 55 PlacesAfterwards, 43 TransitionsBefore, 40 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 548 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 369, positive: 342, positive conditional: 0, positive unconditional: 342, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 369, positive: 333, positive conditional: 0, positive unconditional: 333, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 707.5ms, 53 PlacesBefore, 46 PlacesAfterwards, 32 TransitionsBefore, 29 TransitionsAfterwards, 170 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 50 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 50, positive conditional: 0, positive unconditional: 50, 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: 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: 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] , Cache Queries: [ total: 50, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 32, Positive conditional cache size: 0, Positive unconditional cache size: 32, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L713] 0 int __unbuffered_p2_EBX = 0; [L714] 0 _Bool main$tmp_guard0; [L715] 0 _Bool main$tmp_guard1; [L717] 0 int x = 0; [L718] 0 _Bool x$flush_delayed; [L719] 0 int x$mem_tmp; [L720] 0 _Bool x$r_buff0_thd0; [L721] 0 _Bool x$r_buff0_thd1; [L722] 0 _Bool x$r_buff0_thd2; [L723] 0 _Bool x$r_buff0_thd3; [L724] 0 _Bool x$r_buff1_thd0; [L725] 0 _Bool x$r_buff1_thd1; [L726] 0 _Bool x$r_buff1_thd2; [L727] 0 _Bool x$r_buff1_thd3; [L728] 0 _Bool x$read_delayed; [L729] 0 int *x$read_delayed_var; [L730] 0 int x$w_buff0; [L731] 0 _Bool x$w_buff0_used; [L732] 0 int x$w_buff1; [L733] 0 _Bool x$w_buff1_used; [L735] 0 int y = 0; [L737] 0 int z = 0; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L823] 0 pthread_t t748; [L824] FCALL, FORK 0 pthread_create(&t748, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L825] 0 pthread_t t749; [L826] FCALL, FORK 0 pthread_create(&t749, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L763] 2 x$w_buff1 = x$w_buff0 [L764] 2 x$w_buff0 = 2 [L765] 2 x$w_buff1_used = x$w_buff0_used [L766] 2 x$w_buff0_used = (_Bool)1 [L18] COND FALSE 2 !(!expression) [L768] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L769] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L770] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L771] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L772] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L775] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L827] 0 pthread_t t750; [L828] FCALL, FORK 0 pthread_create(&t750, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L792] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L795] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L798] 3 __unbuffered_p2_EBX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L743] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=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=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L746] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=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=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L749] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L749] EXPR 1 x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x [L749] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L749] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L750] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L750] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L751] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L751] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L752] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L752] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L753] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L753] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L778] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L778] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L779] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L779] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L780] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L780] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L781] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L781] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L782] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L782] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L801] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L801] EXPR 3 x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x [L801] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L801] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L802] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L802] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L803] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L803] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L804] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L804] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L805] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L805] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L758] 1 return 0; [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L787] 2 return 0; [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 3 return 0; [L830] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L834] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L834] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L834] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L834] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L835] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L835] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L836] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L836] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L837] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L837] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L838] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L838] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L841] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L842] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L843] 0 x$flush_delayed = weak$$choice2 [L844] 0 x$mem_tmp = x [L845] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L845] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L846] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L846] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L847] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L847] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L848] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L848] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L849] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L849] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L850] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L850] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L851] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L851] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L852] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 2 && __unbuffered_p2_EBX == 0) [L853] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L853] 0 x = x$flush_delayed ? x$mem_tmp : x [L854] 0 x$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=55, weak$$choice2=255, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 98 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 20563.9ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1208.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7894.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 48 SDtfs, 16 SDslu, 16 SDs, 0 SdLazy, 249 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 313.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 318.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=372occurred in iteration=10, InterpolantAutomatonStates: 54, 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: 44.1ms SsaConstructionTime, 419.9ms SatisfiabilityAnalysisTime, 829.7ms InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 977 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...