/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 04:58:41,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 04:58:41,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 04:58:41,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 04:58:41,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 04:58:41,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 04:58:41,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 04:58:41,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 04:58:41,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 04:58:41,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 04:58:41,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 04:58:41,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 04:58:41,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 04:58:41,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 04:58:41,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 04:58:41,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 04:58:41,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 04:58:41,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 04:58:41,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 04:58:41,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 04:58:41,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 04:58:41,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 04:58:41,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 04:58:41,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 04:58:41,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 04:58:41,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 04:58:41,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 04:58:41,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 04:58:41,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 04:58:41,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 04:58:41,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 04:58:41,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 04:58:41,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 04:58:41,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 04:58:41,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 04:58:41,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 04:58:41,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 04:58:41,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 04:58:41,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 04:58:41,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 04:58:41,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 04:58:41,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2021-06-11 04:58:41,619 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 04:58:41,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 04:58:41,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 04:58:41,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 04:58:41,623 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 04:58:41,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 04:58:41,623 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 04:58:41,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 04:58:41,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 04:58:41,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 04:58:41,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 04:58:41,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 04:58:41,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 04:58:41,625 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 04:58:41,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 04:58:41,625 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 04:58:41,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 04:58:41,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 04:58:41,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 04:58:41,626 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 04:58:41,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 04:58:41,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 04:58:41,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 04:58:41,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 04:58:41,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 04:58:41,627 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 04:58:41,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 04:58:41,627 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 04:58:41,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 04:58:41,627 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 04:58:41,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 04:58:41,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 04:58:41,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 04:58:41,908 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 04:58:41,909 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 04:58:41,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2021-06-11 04:58:41,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3cc98bca/356c5c7a7e8b4168a2be1d672f932946/FLAG275e39d40 [2021-06-11 04:58:42,470 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 04:58:42,473 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2021-06-11 04:58:42,487 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3cc98bca/356c5c7a7e8b4168a2be1d672f932946/FLAG275e39d40 [2021-06-11 04:58:42,988 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3cc98bca/356c5c7a7e8b4168a2be1d672f932946 [2021-06-11 04:58:42,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 04:58:42,992 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 04:58:42,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 04:58:42,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 04:58:42,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 04:58:42,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:58:42" (1/1) ... [2021-06-11 04:58:42,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b33769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:58:42, skipping insertion in model container [2021-06-11 04:58:42,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:58:42" (1/1) ... [2021-06-11 04:58:43,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 04:58:43,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 04:58:43,165 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-11 04:58:43,256 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] [2021-06-11 04:58:43,262 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] [2021-06-11 04:58:43,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 04:58:43,282 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 04:58:43,297 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-11 04:58:43,348 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] [2021-06-11 04:58:43,351 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] [2021-06-11 04:58:43,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 04:58:43,425 INFO L208 MainTranslator]: Completed translation [2021-06-11 04:58:43,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:58:43 WrapperNode [2021-06-11 04:58:43,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 04:58:43,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 04:58:43,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 04:58:43,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 04:58:43,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:58:43" (1/1) ... [2021-06-11 04:58:43,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:58:43" (1/1) ... [2021-06-11 04:58:43,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 04:58:43,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 04:58:43,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 04:58:43,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 04:58:43,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:58:43" (1/1) ... [2021-06-11 04:58:43,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:58:43" (1/1) ... [2021-06-11 04:58:43,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:58:43" (1/1) ... [2021-06-11 04:58:43,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:58:43" (1/1) ... [2021-06-11 04:58:43,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:58:43" (1/1) ... [2021-06-11 04:58:43,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:58:43" (1/1) ... [2021-06-11 04:58:43,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:58:43" (1/1) ... [2021-06-11 04:58:43,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 04:58:43,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 04:58:43,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 04:58:43,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 04:58:43,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:58:43" (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 [2021-06-11 04:58:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-11 04:58:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-06-11 04:58:43,596 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-06-11 04:58:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-06-11 04:58:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-06-11 04:58:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 04:58:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 04:58:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 04:58:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 04:58:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 04:58:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 04:58:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 04:58:43,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 04:58:43,601 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 04:58:44,067 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 04:58:44,068 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-06-11 04:58:44,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:58:44 BoogieIcfgContainer [2021-06-11 04:58:44,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 04:58:44,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 04:58:44,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 04:58:44,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 04:58:44,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 04:58:42" (1/3) ... [2021-06-11 04:58:44,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb70ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:58:44, skipping insertion in model container [2021-06-11 04:58:44,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:58:43" (2/3) ... [2021-06-11 04:58:44,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb70ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:58:44, skipping insertion in model container [2021-06-11 04:58:44,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:58:44" (3/3) ... [2021-06-11 04:58:44,078 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2021-06-11 04:58:44,083 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 04:58:44,087 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-06-11 04:58:44,088 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 04:58:44,127 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,127 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,127 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,127 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,128 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,128 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,128 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,128 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,128 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,128 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,129 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,129 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,129 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,129 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,129 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,131 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,131 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,133 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,134 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,134 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,135 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,135 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,135 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,135 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,135 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,135 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,136 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,136 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,136 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,136 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,136 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,137 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,137 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,137 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,137 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,137 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,138 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,138 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,138 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,138 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,139 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,139 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,139 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,139 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,139 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,140 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,140 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,140 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,140 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,140 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,142 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,142 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,142 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,143 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,145 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,145 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,147 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,147 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,147 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,147 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,147 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,147 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,149 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,149 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,149 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,150 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,150 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,150 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,151 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,151 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,153 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,153 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,155 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,157 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,157 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,159 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,164 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,165 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,165 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,165 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,172 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,172 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,173 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:58:44,182 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-11 04:58:44,199 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-06-11 04:58:44,226 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 04:58:44,226 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 04:58:44,227 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 04:58:44,227 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 04:58:44,227 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 04:58:44,227 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 04:58:44,227 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 04:58:44,227 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 04:58:44,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 109 transitions, 240 flow [2021-06-11 04:58:44,293 INFO L129 PetriNetUnfolder]: 21/109 cut-off events. [2021-06-11 04:58:44,293 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-11 04:58:44,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 109 events. 21/109 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 160 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 83. Up to 3 conditions per place. [2021-06-11 04:58:44,309 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 109 transitions, 240 flow [2021-06-11 04:58:44,313 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 97 transitions, 206 flow [2021-06-11 04:58:44,315 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:58:44,326 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 97 transitions, 206 flow [2021-06-11 04:58:44,330 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 97 transitions, 206 flow [2021-06-11 04:58:44,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 97 transitions, 206 flow [2021-06-11 04:58:44,347 INFO L129 PetriNetUnfolder]: 20/99 cut-off events. [2021-06-11 04:58:44,347 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-11 04:58:44,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 99 events. 20/99 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 153 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 83. Up to 3 conditions per place. [2021-06-11 04:58:44,351 INFO L151 LiptonReduction]: Number of co-enabled transitions 3528 [2021-06-11 04:58:44,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:44,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:44,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:58:44,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:58:44,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:44,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:45,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:45,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:45,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:45,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:58:45,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:58:45,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:45,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:45,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:45,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:45,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:45,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:45,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:45,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:45,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:45,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:45,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:45,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:45,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:45,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:45,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:45,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:58:45,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:58:45,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:45,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:45,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:45,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:45,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:45,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:58:45,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:58:45,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:45,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:45,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:46,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:46,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:46,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:58:46,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:58:46,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:46,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:46,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:46,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:46,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:46,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:46,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:46,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:58:46,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:58:46,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:46,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:46,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:46,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:46,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:58:46,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 04:58:46,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:46,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:46,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 04:58:46,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:58:46,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:46,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:46,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:46,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:58:46,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 04:58:46,712 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-06-11 04:58:46,956 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-06-11 04:58:47,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:47,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:47,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:58:47,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:58:47,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:47,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:47,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:58:47,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 04:58:47,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:58:47,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 04:58:47,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:58:47,072 INFO L163 LiptonReduction]: Checked pairs total: 5960 [2021-06-11 04:58:47,073 INFO L165 LiptonReduction]: Total number of compositions: 67 [2021-06-11 04:58:47,075 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2761 [2021-06-11 04:58:47,084 INFO L129 PetriNetUnfolder]: 10/36 cut-off events. [2021-06-11 04:58:47,084 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-11 04:58:47,084 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:58:47,085 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:58:47,085 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:58:47,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:58:47,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1816823494, now seen corresponding path program 1 times [2021-06-11 04:58:47,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:58:47,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670004692] [2021-06-11 04:58:47,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:58:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:58:47,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:47,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 04:58:47,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:58:47,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670004692] [2021-06-11 04:58:47,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:58:47,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 04:58:47,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176692690] [2021-06-11 04:58:47,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 04:58:47,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:58:47,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 04:58:47,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 04:58:47,241 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 176 [2021-06-11 04:58:47,243 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,243 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:58:47,243 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 176 [2021-06-11 04:58:47,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:58:47,288 INFO L129 PetriNetUnfolder]: 18/88 cut-off events. [2021-06-11 04:58:47,288 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-06-11 04:58:47,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 88 events. 18/88 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 292 event pairs, 1 based on Foata normal form. 4/70 useless extension candidates. Maximal degree in co-relation 106. Up to 14 conditions per place. [2021-06-11 04:58:47,291 INFO L132 encePairwiseOnDemand]: 169/176 looper letters, 5 selfloop transitions, 5 changer transitions 0/48 dead transitions. [2021-06-11 04:58:47,292 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 128 flow [2021-06-11 04:58:47,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 04:58:47,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 04:58:47,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 418 transitions. [2021-06-11 04:58:47,308 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2021-06-11 04:58:47,309 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 418 transitions. [2021-06-11 04:58:47,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 418 transitions. [2021-06-11 04:58:47,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:58:47,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 418 transitions. [2021-06-11 04:58:47,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,326 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,327 INFO L185 Difference]: Start difference. First operand has 41 places, 46 transitions, 104 flow. Second operand 3 states and 418 transitions. [2021-06-11 04:58:47,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 128 flow [2021-06-11 04:58:47,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 48 transitions, 120 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 04:58:47,332 INFO L241 Difference]: Finished difference. Result has 41 places, 47 transitions, 124 flow [2021-06-11 04:58:47,333 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=41, PETRI_TRANSITIONS=47} [2021-06-11 04:58:47,334 INFO L343 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2021-06-11 04:58:47,334 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:58:47,334 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 47 transitions, 124 flow [2021-06-11 04:58:47,335 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 47 transitions, 124 flow [2021-06-11 04:58:47,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 47 transitions, 124 flow [2021-06-11 04:58:47,352 INFO L129 PetriNetUnfolder]: 14/77 cut-off events. [2021-06-11 04:58:47,352 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 04:58:47,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 77 events. 14/77 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 246 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 84. Up to 9 conditions per place. [2021-06-11 04:58:47,354 INFO L151 LiptonReduction]: Number of co-enabled transitions 946 [2021-06-11 04:58:47,360 INFO L163 LiptonReduction]: Checked pairs total: 662 [2021-06-11 04:58:47,360 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:58:47,361 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-06-11 04:58:47,362 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 47 transitions, 124 flow [2021-06-11 04:58:47,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,362 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:58:47,362 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:58:47,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 04:58:47,362 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:58:47,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:58:47,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1536812287, now seen corresponding path program 1 times [2021-06-11 04:58:47,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:58:47,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734026680] [2021-06-11 04:58:47,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:58:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:58:47,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:47,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 04:58:47,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:58:47,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734026680] [2021-06-11 04:58:47,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:58:47,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 04:58:47,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41046117] [2021-06-11 04:58:47,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 04:58:47,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:58:47,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 04:58:47,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 04:58:47,407 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 176 [2021-06-11 04:58:47,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 47 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:58:47,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 176 [2021-06-11 04:58:47,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:58:47,423 INFO L129 PetriNetUnfolder]: 14/76 cut-off events. [2021-06-11 04:58:47,423 INFO L130 PetriNetUnfolder]: For 10/16 co-relation queries the response was YES. [2021-06-11 04:58:47,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 76 events. 14/76 cut-off events. For 10/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 221 event pairs, 0 based on Foata normal form. 4/60 useless extension candidates. Maximal degree in co-relation 99. Up to 10 conditions per place. [2021-06-11 04:58:47,424 INFO L132 encePairwiseOnDemand]: 171/176 looper letters, 5 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2021-06-11 04:58:47,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 47 transitions, 142 flow [2021-06-11 04:58:47,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 04:58:47,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 04:58:47,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 415 transitions. [2021-06-11 04:58:47,426 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7859848484848485 [2021-06-11 04:58:47,426 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 415 transitions. [2021-06-11 04:58:47,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 415 transitions. [2021-06-11 04:58:47,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:58:47,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 415 transitions. [2021-06-11 04:58:47,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,429 INFO L185 Difference]: Start difference. First operand has 41 places, 47 transitions, 124 flow. Second operand 3 states and 415 transitions. [2021-06-11 04:58:47,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 47 transitions, 142 flow [2021-06-11 04:58:47,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 47 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 04:58:47,431 INFO L241 Difference]: Finished difference. Result has 42 places, 47 transitions, 128 flow [2021-06-11 04:58:47,431 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=42, PETRI_TRANSITIONS=47} [2021-06-11 04:58:47,431 INFO L343 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2021-06-11 04:58:47,432 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:58:47,432 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 47 transitions, 128 flow [2021-06-11 04:58:47,432 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 47 transitions, 128 flow [2021-06-11 04:58:47,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 47 transitions, 128 flow [2021-06-11 04:58:47,437 INFO L129 PetriNetUnfolder]: 14/76 cut-off events. [2021-06-11 04:58:47,437 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-06-11 04:58:47,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 76 events. 14/76 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 238 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 89. Up to 9 conditions per place. [2021-06-11 04:58:47,438 INFO L151 LiptonReduction]: Number of co-enabled transitions 914 [2021-06-11 04:58:47,444 INFO L163 LiptonReduction]: Checked pairs total: 646 [2021-06-11 04:58:47,444 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:58:47,444 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 04:58:47,445 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 47 transitions, 128 flow [2021-06-11 04:58:47,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,445 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:58:47,445 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:58:47,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 04:58:47,446 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:58:47,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:58:47,446 INFO L82 PathProgramCache]: Analyzing trace with hash -134759196, now seen corresponding path program 1 times [2021-06-11 04:58:47,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:58:47,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498653142] [2021-06-11 04:58:47,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:58:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:58:47,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:47,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 04:58:47,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 04:58:47,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:47,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:58:47,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498653142] [2021-06-11 04:58:47,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:58:47,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 04:58:47,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139763994] [2021-06-11 04:58:47,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 04:58:47,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:58:47,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 04:58:47,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 04:58:47,500 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 176 [2021-06-11 04:58:47,501 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 47 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:58:47,501 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 176 [2021-06-11 04:58:47,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:58:47,616 INFO L129 PetriNetUnfolder]: 147/373 cut-off events. [2021-06-11 04:58:47,617 INFO L130 PetriNetUnfolder]: For 60/62 co-relation queries the response was YES. [2021-06-11 04:58:47,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 373 events. 147/373 cut-off events. For 60/62 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1787 event pairs, 46 based on Foata normal form. 6/325 useless extension candidates. Maximal degree in co-relation 589. Up to 146 conditions per place. [2021-06-11 04:58:47,619 INFO L132 encePairwiseOnDemand]: 159/176 looper letters, 26 selfloop transitions, 7 changer transitions 27/82 dead transitions. [2021-06-11 04:58:47,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 82 transitions, 327 flow [2021-06-11 04:58:47,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 04:58:47,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 04:58:47,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 571 transitions. [2021-06-11 04:58:47,621 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6488636363636363 [2021-06-11 04:58:47,621 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 571 transitions. [2021-06-11 04:58:47,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 571 transitions. [2021-06-11 04:58:47,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:58:47,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 571 transitions. [2021-06-11 04:58:47,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,625 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) [2021-06-11 04:58:47,625 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) [2021-06-11 04:58:47,625 INFO L185 Difference]: Start difference. First operand has 42 places, 47 transitions, 128 flow. Second operand 5 states and 571 transitions. [2021-06-11 04:58:47,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 82 transitions, 327 flow [2021-06-11 04:58:47,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 82 transitions, 321 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 04:58:47,629 INFO L241 Difference]: Finished difference. Result has 48 places, 49 transitions, 197 flow [2021-06-11 04:58:47,629 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=197, PETRI_PLACES=48, PETRI_TRANSITIONS=49} [2021-06-11 04:58:47,630 INFO L343 CegarLoopForPetriNet]: 41 programPoint places, 7 predicate places. [2021-06-11 04:58:47,630 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:58:47,630 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 49 transitions, 197 flow [2021-06-11 04:58:47,630 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 49 transitions, 197 flow [2021-06-11 04:58:47,631 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 49 transitions, 197 flow [2021-06-11 04:58:47,637 INFO L129 PetriNetUnfolder]: 25/102 cut-off events. [2021-06-11 04:58:47,637 INFO L130 PetriNetUnfolder]: For 37/44 co-relation queries the response was YES. [2021-06-11 04:58:47,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 102 events. 25/102 cut-off events. For 37/44 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 321 event pairs, 1 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 175. Up to 19 conditions per place. [2021-06-11 04:58:47,639 INFO L151 LiptonReduction]: Number of co-enabled transitions 662 [2021-06-11 04:58:47,661 INFO L163 LiptonReduction]: Checked pairs total: 318 [2021-06-11 04:58:47,662 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:58:47,662 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-06-11 04:58:47,663 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 49 transitions, 197 flow [2021-06-11 04:58:47,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,663 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:58:47,663 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:58:47,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 04:58:47,664 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:58:47,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:58:47,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1743595494, now seen corresponding path program 2 times [2021-06-11 04:58:47,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:58:47,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356243373] [2021-06-11 04:58:47,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:58:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:58:47,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:47,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 04:58:47,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:47,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:58:47,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356243373] [2021-06-11 04:58:47,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:58:47,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 04:58:47,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101407203] [2021-06-11 04:58:47,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 04:58:47,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:58:47,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 04:58:47,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 04:58:47,696 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 176 [2021-06-11 04:58:47,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 49 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:58:47,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 176 [2021-06-11 04:58:47,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:58:47,738 INFO L129 PetriNetUnfolder]: 85/220 cut-off events. [2021-06-11 04:58:47,739 INFO L130 PetriNetUnfolder]: For 93/100 co-relation queries the response was YES. [2021-06-11 04:58:47,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 495 conditions, 220 events. 85/220 cut-off events. For 93/100 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 896 event pairs, 28 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 466. Up to 103 conditions per place. [2021-06-11 04:58:47,740 INFO L132 encePairwiseOnDemand]: 173/176 looper letters, 20 selfloop transitions, 2 changer transitions 2/56 dead transitions. [2021-06-11 04:58:47,740 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 259 flow [2021-06-11 04:58:47,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 04:58:47,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 04:58:47,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2021-06-11 04:58:47,742 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.740530303030303 [2021-06-11 04:58:47,742 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 391 transitions. [2021-06-11 04:58:47,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 391 transitions. [2021-06-11 04:58:47,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:58:47,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 391 transitions. [2021-06-11 04:58:47,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,745 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,745 INFO L185 Difference]: Start difference. First operand has 48 places, 49 transitions, 197 flow. Second operand 3 states and 391 transitions. [2021-06-11 04:58:47,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 259 flow [2021-06-11 04:58:47,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 56 transitions, 237 flow, removed 11 selfloop flow, removed 0 redundant places. [2021-06-11 04:58:47,748 INFO L241 Difference]: Finished difference. Result has 51 places, 49 transitions, 183 flow [2021-06-11 04:58:47,748 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=183, PETRI_PLACES=51, PETRI_TRANSITIONS=49} [2021-06-11 04:58:47,748 INFO L343 CegarLoopForPetriNet]: 41 programPoint places, 10 predicate places. [2021-06-11 04:58:47,748 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:58:47,748 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 49 transitions, 183 flow [2021-06-11 04:58:47,749 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 49 transitions, 183 flow [2021-06-11 04:58:47,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 49 transitions, 183 flow [2021-06-11 04:58:47,757 INFO L129 PetriNetUnfolder]: 31/123 cut-off events. [2021-06-11 04:58:47,757 INFO L130 PetriNetUnfolder]: For 34/38 co-relation queries the response was YES. [2021-06-11 04:58:47,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 123 events. 31/123 cut-off events. For 34/38 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 435 event pairs, 2 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 207. Up to 28 conditions per place. [2021-06-11 04:58:47,758 INFO L151 LiptonReduction]: Number of co-enabled transitions 654 [2021-06-11 04:58:47,778 INFO L163 LiptonReduction]: Checked pairs total: 286 [2021-06-11 04:58:47,778 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:58:47,779 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-06-11 04:58:47,779 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 49 transitions, 183 flow [2021-06-11 04:58:47,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,780 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:58:47,780 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:58:47,780 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 04:58:47,780 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:58:47,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:58:47,781 INFO L82 PathProgramCache]: Analyzing trace with hash 2054710043, now seen corresponding path program 1 times [2021-06-11 04:58:47,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:58:47,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867187772] [2021-06-11 04:58:47,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:58:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:58:47,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:47,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 04:58:47,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 04:58:47,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:58:47,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:58:47,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:58:47,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867187772] [2021-06-11 04:58:47,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:58:47,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 04:58:47,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148157317] [2021-06-11 04:58:47,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 04:58:47,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:58:47,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 04:58:47,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 04:58:47,827 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 176 [2021-06-11 04:58:47,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 49 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:58:47,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 176 [2021-06-11 04:58:47,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:58:47,920 INFO L129 PetriNetUnfolder]: 118/292 cut-off events. [2021-06-11 04:58:47,920 INFO L130 PetriNetUnfolder]: For 143/150 co-relation queries the response was YES. [2021-06-11 04:58:47,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 292 events. 118/292 cut-off events. For 143/150 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1366 event pairs, 29 based on Foata normal form. 13/270 useless extension candidates. Maximal degree in co-relation 662. Up to 124 conditions per place. [2021-06-11 04:58:47,921 INFO L132 encePairwiseOnDemand]: 160/176 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2021-06-11 04:58:47,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 72 transitions, 344 flow [2021-06-11 04:58:47,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 04:58:47,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 04:58:47,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 559 transitions. [2021-06-11 04:58:47,923 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6352272727272728 [2021-06-11 04:58:47,923 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 559 transitions. [2021-06-11 04:58:47,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 559 transitions. [2021-06-11 04:58:47,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:58:47,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 559 transitions. [2021-06-11 04:58:47,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,927 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) [2021-06-11 04:58:47,927 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) [2021-06-11 04:58:47,927 INFO L185 Difference]: Start difference. First operand has 51 places, 49 transitions, 183 flow. Second operand 5 states and 559 transitions. [2021-06-11 04:58:47,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 72 transitions, 344 flow [2021-06-11 04:58:47,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 72 transitions, 327 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 04:58:47,931 INFO L241 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2021-06-11 04:58:47,931 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2021-06-11 04:58:47,932 INFO L343 CegarLoopForPetriNet]: 41 programPoint places, 8 predicate places. [2021-06-11 04:58:47,932 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:58:47,932 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 0 transitions, 0 flow [2021-06-11 04:58:47,932 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 0 transitions, 0 flow [2021-06-11 04:58:47,932 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 04:58:47,932 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 04:58:47,933 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 04:58:47,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-06-11 04:58:47,933 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 04:58:47,933 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:58:47,933 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:58:47,933 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 04:58:47,937 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 04:58:47,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:58:47,938 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 04:58:47,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 04:58:47 BasicIcfg [2021-06-11 04:58:47,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 04:58:47,942 INFO L168 Benchmark]: Toolchain (without parser) took 4950.18 ms. Allocated memory was 375.4 MB in the beginning and 450.9 MB in the end (delta: 75.5 MB). Free memory was 338.6 MB in the beginning and 207.6 MB in the end (delta: 130.9 MB). Peak memory consumption was 209.0 MB. Max. memory is 16.0 GB. [2021-06-11 04:58:47,942 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 375.4 MB. Free memory is still 356.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 04:58:47,943 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.69 ms. Allocated memory is still 375.4 MB. Free memory was 338.5 MB in the beginning and 339.0 MB in the end (delta: -516.1 kB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. [2021-06-11 04:58:47,943 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.53 ms. Allocated memory is still 375.4 MB. Free memory was 339.0 MB in the beginning and 337.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 04:58:47,944 INFO L168 Benchmark]: Boogie Preprocessor took 33.57 ms. Allocated memory is still 375.4 MB. Free memory was 337.5 MB in the beginning and 335.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 04:58:47,945 INFO L168 Benchmark]: RCFGBuilder took 549.40 ms. Allocated memory is still 375.4 MB. Free memory was 335.4 MB in the beginning and 309.2 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-11 04:58:47,949 INFO L168 Benchmark]: TraceAbstraction took 3869.64 ms. Allocated memory was 375.4 MB in the beginning and 450.9 MB in the end (delta: 75.5 MB). Free memory was 308.2 MB in the beginning and 207.6 MB in the end (delta: 100.5 MB). Peak memory consumption was 178.1 MB. Max. memory is 16.0 GB. [2021-06-11 04:58:47,951 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 375.4 MB. Free memory is still 356.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 433.69 ms. Allocated memory is still 375.4 MB. Free memory was 338.5 MB in the beginning and 339.0 MB in the end (delta: -516.1 kB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.53 ms. Allocated memory is still 375.4 MB. Free memory was 339.0 MB in the beginning and 337.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.57 ms. Allocated memory is still 375.4 MB. Free memory was 337.5 MB in the beginning and 335.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 549.40 ms. Allocated memory is still 375.4 MB. Free memory was 335.4 MB in the beginning and 309.2 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3869.64 ms. Allocated memory was 375.4 MB in the beginning and 450.9 MB in the end (delta: 75.5 MB). Free memory was 308.2 MB in the beginning and 207.6 MB in the end (delta: 100.5 MB). Peak memory consumption was 178.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2743.1ms, 83 PlacesBefore, 41 PlacesAfterwards, 97 TransitionsBefore, 46 TransitionsAfterwards, 3528 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 9 ChoiceCompositions, 67 TotalNumberOfCompositions, 5960 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2718, positive: 2551, positive conditional: 0, positive unconditional: 2551, negative: 167, negative conditional: 0, negative unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1964, positive: 1916, positive conditional: 0, positive unconditional: 1916, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1964, positive: 1916, positive conditional: 0, positive unconditional: 1916, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1964, positive: 1912, positive conditional: 0, positive unconditional: 1912, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 52, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 142, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2718, positive: 635, positive conditional: 0, positive unconditional: 635, negative: 119, negative conditional: 0, negative unconditional: 119, unknown: 1964, unknown conditional: 0, unknown unconditional: 1964] , Statistics on independence cache: Total cache size (in pairs): 2676, Positive cache size: 2629, Positive conditional cache size: 0, Positive unconditional cache size: 2629, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.0ms, 41 PlacesBefore, 41 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 946 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 662 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 98, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 98, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2676, Positive cache size: 2629, Positive conditional cache size: 0, Positive unconditional cache size: 2629, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.7ms, 42 PlacesBefore, 42 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 914 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 646 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 130, positive: 100, positive conditional: 0, positive unconditional: 100, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 130, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 25, unknown conditional: 0, unknown unconditional: 25] , Statistics on independence cache: Total cache size (in pairs): 2701, Positive cache size: 2654, Positive conditional cache size: 0, Positive unconditional cache size: 2654, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.5ms, 48 PlacesBefore, 48 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 662 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 318 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 21, positive conditional: 0, positive unconditional: 21, 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: 15, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 15, unknown conditional: 0, unknown unconditional: 15] , Statistics on independence cache: Total cache size (in pairs): 2716, Positive cache size: 2660, Positive conditional cache size: 0, Positive unconditional cache size: 2660, Negative cache size: 56, Negative conditional cache size: 0, Negative unconditional cache size: 56 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.9ms, 51 PlacesBefore, 51 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 654 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 286 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 35, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 2726, Positive cache size: 2665, Positive conditional cache size: 0, Positive unconditional cache size: 2665, Negative cache size: 61, Negative conditional cache size: 0, Negative unconditional cache size: 61 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8ms, 49 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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] , Statistics on independence cache: Total cache size (in pairs): 2726, Positive cache size: 2665, Positive conditional cache size: 0, Positive unconditional cache size: 2665, Negative cache size: 61, Negative conditional cache size: 0, Negative unconditional cache size: 61 - PositiveResult [Line: 802]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 745]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 88 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3716.0ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 412.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2852.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 104 SDtfs, 51 SDslu, 29 SDs, 0 SdLazy, 156 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 127.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=3, InterpolantAutomatonStates: 19, 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: 8.7ms SsaConstructionTime, 51.5ms SatisfiabilityAnalysisTime, 152.0ms InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...