/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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 11:45:48,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 11:45:48,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 11:45:48,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 11:45:48,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 11:45:48,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 11:45:48,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 11:45:48,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 11:45:48,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 11:45:48,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 11:45:48,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 11:45:48,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 11:45:48,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 11:45:48,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 11:45:48,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 11:45:48,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 11:45:48,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 11:45:48,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 11:45:48,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 11:45:48,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 11:45:48,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 11:45:48,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 11:45:48,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 11:45:48,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 11:45:48,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 11:45:48,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 11:45:48,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 11:45:48,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 11:45:48,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 11:45:48,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 11:45:48,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 11:45:48,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 11:45:48,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 11:45:48,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 11:45:48,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 11:45:48,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 11:45:48,727 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-VariableLbe.epf [2021-03-24 11:45:48,742 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 11:45:48,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 11:45:48,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 11:45:48,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 11:45:48,743 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 11:45:48,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 11:45:48,744 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 11:45:48,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 11:45:48,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 11:45:48,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 11:45:48,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 11:45:48,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 11:45:48,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 11:45:48,745 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 11:45:48,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 11:45:48,745 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 11:45:48,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 11:45:48,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 11:45:48,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 11:45:48,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 11:45:48,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 11:45:48,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 11:45:48,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 11:45:48,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 11:45:48,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 11:45:48,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 11:45:48,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 11:45:48,747 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 11:45:48,747 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 11:45:48,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 11:45:49,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 11:45:49,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 11:45:49,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 11:45:49,127 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 11:45:49,138 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 11:45:49,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2021-03-24 11:45:49,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df54fd7a9/2a3a12989d05499cae4c2ea0f0146421/FLAGf3f71c805 [2021-03-24 11:45:49,638 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 11:45:49,639 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2021-03-24 11:45:49,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df54fd7a9/2a3a12989d05499cae4c2ea0f0146421/FLAGf3f71c805 [2021-03-24 11:45:49,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df54fd7a9/2a3a12989d05499cae4c2ea0f0146421 [2021-03-24 11:45:49,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 11:45:49,946 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 11:45:49,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 11:45:49,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 11:45:49,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 11:45:49,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:45:49" (1/1) ... [2021-03-24 11:45:49,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23b450e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:45:49, skipping insertion in model container [2021-03-24 11:45:49,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:45:49" (1/1) ... [2021-03-24 11:45:49,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 11:45:50,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 11:45:50,105 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-24 11:45:50,231 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-divine/ring_1w1r-2.i[39095,39108] [2021-03-24 11:45:50,235 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-divine/ring_1w1r-2.i[39180,39193] [2021-03-24 11:45:50,236 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-divine/ring_1w1r-2.i[39232,39245] [2021-03-24 11:45:50,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:45:50,247 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 11:45:50,293 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-24 11:45:50,336 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-divine/ring_1w1r-2.i[39095,39108] [2021-03-24 11:45:50,337 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-divine/ring_1w1r-2.i[39180,39193] [2021-03-24 11:45:50,337 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-divine/ring_1w1r-2.i[39232,39245] [2021-03-24 11:45:50,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:45:50,465 INFO L208 MainTranslator]: Completed translation [2021-03-24 11:45:50,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:45:50 WrapperNode [2021-03-24 11:45:50,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 11:45:50,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 11:45:50,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 11:45:50,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 11:45:50,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:45:50" (1/1) ... [2021-03-24 11:45:50,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:45:50" (1/1) ... [2021-03-24 11:45:50,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 11:45:50,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 11:45:50,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 11:45:50,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 11:45:50,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:45:50" (1/1) ... [2021-03-24 11:45:50,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:45:50" (1/1) ... [2021-03-24 11:45:50,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:45:50" (1/1) ... [2021-03-24 11:45:50,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:45:50" (1/1) ... [2021-03-24 11:45:50,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:45:50" (1/1) ... [2021-03-24 11:45:50,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:45:50" (1/1) ... [2021-03-24 11:45:50,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:45:50" (1/1) ... [2021-03-24 11:45:50,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 11:45:50,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 11:45:50,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 11:45:50,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 11:45:50,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:45:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 11:45:50,635 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2021-03-24 11:45:50,637 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2021-03-24 11:45:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 11:45:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 11:45:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 11:45:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 11:45:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 11:45:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 11:45:50,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 11:45:50,640 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 11:45:51,075 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 11:45:51,075 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-03-24 11:45:51,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:45:51 BoogieIcfgContainer [2021-03-24 11:45:51,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 11:45:51,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 11:45:51,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 11:45:51,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 11:45:51,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 11:45:49" (1/3) ... [2021-03-24 11:45:51,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ff9da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:45:51, skipping insertion in model container [2021-03-24 11:45:51,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:45:50" (2/3) ... [2021-03-24 11:45:51,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ff9da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:45:51, skipping insertion in model container [2021-03-24 11:45:51,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:45:51" (3/3) ... [2021-03-24 11:45:51,083 INFO L111 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2021-03-24 11:45:51,087 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 11:45:51,091 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-03-24 11:45:51,091 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 11:45:51,117 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,117 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,117 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,118 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,118 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,118 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,118 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,118 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,118 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,118 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,119 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,119 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,119 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,119 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,119 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,119 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,119 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,119 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,119 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,120 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,120 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,120 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,120 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,120 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,120 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,120 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,120 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,121 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,121 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,121 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,121 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,121 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,121 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,121 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,121 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,121 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,122 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,122 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,122 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,122 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,122 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,122 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,122 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,122 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,122 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,123 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,123 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,123 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,123 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,123 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,123 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,123 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,123 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,123 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,124 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,124 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,124 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,124 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,124 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,124 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,124 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,124 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,124 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,124 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,125 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,125 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,125 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,125 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,125 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,125 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,125 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,125 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,126 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,126 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,126 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,126 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,126 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,126 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,126 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,126 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,126 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,127 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,127 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,127 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,127 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,127 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,127 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,127 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,127 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,127 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,127 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,128 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,128 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,128 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,128 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,128 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,128 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,128 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,128 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,128 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,129 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,129 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,129 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,129 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,129 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,129 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,129 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,129 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,129 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,130 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,130 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,130 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,130 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,130 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,130 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,130 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,130 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,130 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,131 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,131 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,131 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,131 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,131 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,131 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,131 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,131 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,132 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,132 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,132 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,132 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,132 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,132 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,132 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,132 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,132 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,133 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,133 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,133 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,133 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,133 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,133 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,133 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,133 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,134 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,134 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,134 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,134 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,134 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,134 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,134 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,134 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,135 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,135 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,135 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,135 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,135 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,135 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,135 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,135 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,135 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,136 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,136 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,136 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,136 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,136 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,136 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,136 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,136 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,136 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,137 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,137 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,137 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,137 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,137 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,137 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,137 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,137 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,137 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,138 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,138 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,138 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,138 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,138 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,138 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,138 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,138 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,138 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,138 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,139 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,139 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,139 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,139 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,139 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,139 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,139 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,139 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,139 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,140 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,140 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,140 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,140 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,140 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,140 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,140 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,140 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,140 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,140 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,141 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,141 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,141 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,141 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,141 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,141 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,141 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,141 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,142 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,142 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,142 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,142 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,142 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,142 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,142 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,142 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,142 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,143 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,143 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,143 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,143 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,143 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,143 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,143 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,143 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,143 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,144 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,144 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,144 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,144 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,144 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,144 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,144 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,144 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,144 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,145 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,145 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,145 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,145 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,145 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,145 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,145 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,145 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,145 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,145 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,146 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,146 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,146 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,146 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,148 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,148 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,148 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,148 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,148 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,148 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,149 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,149 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,149 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,149 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,149 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,149 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,149 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,149 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,149 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,149 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,150 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,150 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,150 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,150 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,150 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,150 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,150 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,150 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,150 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,150 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,151 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,151 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,151 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:45:51,156 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-24 11:45:51,171 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-24 11:45:51,185 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 11:45:51,186 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 11:45:51,186 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 11:45:51,186 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 11:45:51,186 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 11:45:51,186 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 11:45:51,186 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 11:45:51,186 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 11:45:51,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 139 transitions, 286 flow [2021-03-24 11:45:51,249 INFO L129 PetriNetUnfolder]: 10/138 cut-off events. [2021-03-24 11:45:51,250 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-24 11:45:51,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 138 events. 10/138 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 243 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2021-03-24 11:45:51,258 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 139 transitions, 286 flow [2021-03-24 11:45:51,263 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 130 transitions, 263 flow [2021-03-24 11:45:51,265 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 11:45:51,271 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 130 transitions, 263 flow [2021-03-24 11:45:51,280 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 130 transitions, 263 flow [2021-03-24 11:45:51,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 130 transitions, 263 flow [2021-03-24 11:45:51,321 INFO L129 PetriNetUnfolder]: 10/130 cut-off events. [2021-03-24 11:45:51,321 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:45:51,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 130 events. 10/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 215 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2021-03-24 11:45:51,326 INFO L142 LiptonReduction]: Number of co-enabled transitions 4968 [2021-03-24 11:45:52,507 INFO L154 LiptonReduction]: Checked pairs total: 2473 [2021-03-24 11:45:52,508 INFO L156 LiptonReduction]: Total number of compositions: 66 [2021-03-24 11:45:52,510 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1246 [2021-03-24 11:45:52,518 INFO L129 PetriNetUnfolder]: 1/18 cut-off events. [2021-03-24 11:45:52,518 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:45:52,518 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:45:52,519 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:45:52,519 INFO L428 AbstractCegarLoop]: === Iteration 1 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:45:52,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:45:52,523 INFO L82 PathProgramCache]: Analyzing trace with hash -2015390294, now seen corresponding path program 1 times [2021-03-24 11:45:52,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:45:52,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953134562] [2021-03-24 11:45:52,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:45:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:45:52,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:52,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:45:52,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:52,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:45:52,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:45:52,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953134562] [2021-03-24 11:45:52,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:45:52,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 11:45:52,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073727444] [2021-03-24 11:45:52,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-24 11:45:52,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:45:52,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-24 11:45:52,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-24 11:45:52,671 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 205 [2021-03-24 11:45:52,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 78 transitions, 159 flow. Second operand has 2 states, 2 states have (on average 190.5) internal successors, (381), 2 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:52,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:45:52,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 205 [2021-03-24 11:45:52,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:45:52,711 INFO L129 PetriNetUnfolder]: 4/72 cut-off events. [2021-03-24 11:45:52,711 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:45:52,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 72 events. 4/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 4/69 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-03-24 11:45:52,713 INFO L132 encePairwiseOnDemand]: 201/205 looper letters, 0 selfloop transitions, 0 changer transitions 0/72 dead transitions. [2021-03-24 11:45:52,713 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 72 transitions, 147 flow [2021-03-24 11:45:52,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-24 11:45:52,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-24 11:45:52,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 384 transitions. [2021-03-24 11:45:52,724 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9365853658536586 [2021-03-24 11:45:52,724 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 384 transitions. [2021-03-24 11:45:52,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 384 transitions. [2021-03-24 11:45:52,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:45:52,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 384 transitions. [2021-03-24 11:45:52,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 192.0) internal successors, (384), 2 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:52,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:52,737 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:52,740 INFO L185 Difference]: Start difference. First operand has 74 places, 78 transitions, 159 flow. Second operand 2 states and 384 transitions. [2021-03-24 11:45:52,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 72 transitions, 147 flow [2021-03-24 11:45:52,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 72 transitions, 146 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 11:45:52,745 INFO L241 Difference]: Finished difference. Result has 72 places, 72 transitions, 146 flow [2021-03-24 11:45:52,746 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=146, PETRI_PLACES=72, PETRI_TRANSITIONS=72} [2021-03-24 11:45:52,747 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, -2 predicate places. [2021-03-24 11:45:52,747 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 72 transitions, 146 flow [2021-03-24 11:45:52,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 190.5) internal successors, (381), 2 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:52,748 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:45:52,748 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:45:52,748 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 11:45:52,748 INFO L428 AbstractCegarLoop]: === Iteration 2 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:45:52,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:45:52,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1947407627, now seen corresponding path program 1 times [2021-03-24 11:45:52,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:45:52,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582126948] [2021-03-24 11:45:52,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:45:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:45:52,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:52,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:45:52,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:52,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:45:52,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:52,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:45:52,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:45:52,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582126948] [2021-03-24 11:45:52,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:45:52,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:45:52,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806261949] [2021-03-24 11:45:52,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 11:45:52,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:45:52,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 11:45:52,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 11:45:52,810 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 205 [2021-03-24 11:45:52,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 72 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:52,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:45:52,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 205 [2021-03-24 11:45:52,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:45:52,862 INFO L129 PetriNetUnfolder]: 5/108 cut-off events. [2021-03-24 11:45:52,862 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:45:52,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 108 events. 5/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 117. Up to 6 conditions per place. [2021-03-24 11:45:52,876 INFO L132 encePairwiseOnDemand]: 202/205 looper letters, 5 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2021-03-24 11:45:52,877 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 74 transitions, 164 flow [2021-03-24 11:45:52,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 11:45:52,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 11:45:52,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 554 transitions. [2021-03-24 11:45:52,880 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9008130081300812 [2021-03-24 11:45:52,880 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 554 transitions. [2021-03-24 11:45:52,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 554 transitions. [2021-03-24 11:45:52,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:45:52,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 554 transitions. [2021-03-24 11:45:52,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:52,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:52,885 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:52,885 INFO L185 Difference]: Start difference. First operand has 72 places, 72 transitions, 146 flow. Second operand 3 states and 554 transitions. [2021-03-24 11:45:52,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 74 transitions, 164 flow [2021-03-24 11:45:52,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 74 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-24 11:45:52,887 INFO L241 Difference]: Finished difference. Result has 75 places, 73 transitions, 158 flow [2021-03-24 11:45:52,887 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=75, PETRI_TRANSITIONS=73} [2021-03-24 11:45:52,888 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 1 predicate places. [2021-03-24 11:45:52,888 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 73 transitions, 158 flow [2021-03-24 11:45:52,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:52,889 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:45:52,889 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:45:52,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 11:45:52,889 INFO L428 AbstractCegarLoop]: === Iteration 3 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:45:52,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:45:52,890 INFO L82 PathProgramCache]: Analyzing trace with hash -458773760, now seen corresponding path program 1 times [2021-03-24 11:45:52,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:45:52,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764228760] [2021-03-24 11:45:52,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:45:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:45:53,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:53,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:45:53,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:53,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:45:53,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:53,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:45:53,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:53,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:45:53,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:53,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:45:53,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:53,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:45:53,105 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:45:53,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:45:53,117 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:45:53,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:45:53,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:53,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:45:53,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:53,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:45:53,155 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:45:53,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:45:53,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:53,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:45:53,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:45:53,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764228760] [2021-03-24 11:45:53,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:45:53,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 11:45:53,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436000132] [2021-03-24 11:45:53,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 11:45:53,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:45:53,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 11:45:53,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-03-24 11:45:53,182 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 205 [2021-03-24 11:45:53,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 73 transitions, 158 flow. Second operand has 12 states, 12 states have (on average 95.08333333333333) internal successors, (1141), 12 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:53,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:45:53,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 205 [2021-03-24 11:45:53,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:45:54,109 INFO L129 PetriNetUnfolder]: 498/1356 cut-off events. [2021-03-24 11:45:54,109 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-24 11:45:54,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2312 conditions, 1356 events. 498/1356 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6969 event pairs, 210 based on Foata normal form. 0/1296 useless extension candidates. Maximal degree in co-relation 2307. Up to 646 conditions per place. [2021-03-24 11:45:54,119 INFO L132 encePairwiseOnDemand]: 188/205 looper letters, 107 selfloop transitions, 30 changer transitions 12/182 dead transitions. [2021-03-24 11:45:54,119 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 182 transitions, 672 flow [2021-03-24 11:45:54,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:45:54,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:45:54,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1824 transitions. [2021-03-24 11:45:54,124 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4943089430894309 [2021-03-24 11:45:54,124 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1824 transitions. [2021-03-24 11:45:54,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1824 transitions. [2021-03-24 11:45:54,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:45:54,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1824 transitions. [2021-03-24 11:45:54,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 101.33333333333333) internal successors, (1824), 18 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:54,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 205.0) internal successors, (3895), 19 states have internal predecessors, (3895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:54,136 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 205.0) internal successors, (3895), 19 states have internal predecessors, (3895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:54,140 INFO L185 Difference]: Start difference. First operand has 75 places, 73 transitions, 158 flow. Second operand 18 states and 1824 transitions. [2021-03-24 11:45:54,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 182 transitions, 672 flow [2021-03-24 11:45:54,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 182 transitions, 670 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 11:45:54,145 INFO L241 Difference]: Finished difference. Result has 101 places, 102 transitions, 352 flow [2021-03-24 11:45:54,148 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=352, PETRI_PLACES=101, PETRI_TRANSITIONS=102} [2021-03-24 11:45:54,148 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 27 predicate places. [2021-03-24 11:45:54,148 INFO L480 AbstractCegarLoop]: Abstraction has has 101 places, 102 transitions, 352 flow [2021-03-24 11:45:54,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 95.08333333333333) internal successors, (1141), 12 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:54,149 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:45:54,149 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:45:54,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 11:45:54,149 INFO L428 AbstractCegarLoop]: === Iteration 4 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:45:54,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:45:54,152 INFO L82 PathProgramCache]: Analyzing trace with hash -501315216, now seen corresponding path program 1 times [2021-03-24 11:45:54,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:45:54,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099396298] [2021-03-24 11:45:54,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:45:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:45:54,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:54,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:45:54,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:54,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:45:54,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:54,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:45:54,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:54,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:45:54,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:54,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:45:54,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:54,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:45:54,397 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.1 percent of original size [2021-03-24 11:45:54,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:45:54,411 INFO L142 QuantifierPusher]: treesize reduction 15, result has 70.0 percent of original size [2021-03-24 11:45:54,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:45:54,430 INFO L142 QuantifierPusher]: treesize reduction 45, result has 39.2 percent of original size [2021-03-24 11:45:54,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:45:54,449 INFO L142 QuantifierPusher]: treesize reduction 45, result has 39.2 percent of original size [2021-03-24 11:45:54,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:45:54,473 INFO L142 QuantifierPusher]: treesize reduction 45, result has 39.2 percent of original size [2021-03-24 11:45:54,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:45:54,493 INFO L142 QuantifierPusher]: treesize reduction 48, result has 49.5 percent of original size [2021-03-24 11:45:54,494 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.2 percent of original size 41 [2021-03-24 11:45:54,522 INFO L142 QuantifierPusher]: treesize reduction 48, result has 47.3 percent of original size [2021-03-24 11:45:54,527 INFO L147 QuantifierPusher]: treesize reduction 6, result has 86.0 percent of original size 37 [2021-03-24 11:45:54,554 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:45:54,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:45:54,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:54,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:45:54,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:54,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:45:54,600 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:45:54,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:45:54,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:54,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:45:54,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:45:54,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099396298] [2021-03-24 11:45:54,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:45:54,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:45:54,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506729032] [2021-03-24 11:45:54,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:45:54,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:45:54,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:45:54,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:45:54,632 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 205 [2021-03-24 11:45:54,633 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 102 transitions, 352 flow. Second operand has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:54,633 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:45:54,633 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 205 [2021-03-24 11:45:54,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:45:55,957 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2021-03-24 11:45:56,157 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2021-03-24 11:45:56,993 INFO L129 PetriNetUnfolder]: 990/2518 cut-off events. [2021-03-24 11:45:56,994 INFO L130 PetriNetUnfolder]: For 861/861 co-relation queries the response was YES. [2021-03-24 11:45:57,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5506 conditions, 2518 events. 990/2518 cut-off events. For 861/861 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 14088 event pairs, 419 based on Foata normal form. 12/2384 useless extension candidates. Maximal degree in co-relation 5491. Up to 1229 conditions per place. [2021-03-24 11:45:57,014 INFO L132 encePairwiseOnDemand]: 180/205 looper letters, 200 selfloop transitions, 70 changer transitions 1/299 dead transitions. [2021-03-24 11:45:57,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 299 transitions, 1706 flow [2021-03-24 11:45:57,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-24 11:45:57,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-03-24 11:45:57,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2641 transitions. [2021-03-24 11:45:57,021 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4155782848151062 [2021-03-24 11:45:57,021 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 2641 transitions. [2021-03-24 11:45:57,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 2641 transitions. [2021-03-24 11:45:57,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:45:57,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 2641 transitions. [2021-03-24 11:45:57,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 85.19354838709677) internal successors, (2641), 31 states have internal predecessors, (2641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:57,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 205.0) internal successors, (6560), 32 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:57,042 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 205.0) internal successors, (6560), 32 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:57,042 INFO L185 Difference]: Start difference. First operand has 101 places, 102 transitions, 352 flow. Second operand 31 states and 2641 transitions. [2021-03-24 11:45:57,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 299 transitions, 1706 flow [2021-03-24 11:45:57,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 299 transitions, 1703 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 11:45:57,056 INFO L241 Difference]: Finished difference. Result has 151 places, 158 transitions, 914 flow [2021-03-24 11:45:57,056 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=914, PETRI_PLACES=151, PETRI_TRANSITIONS=158} [2021-03-24 11:45:57,056 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 77 predicate places. [2021-03-24 11:45:57,056 INFO L480 AbstractCegarLoop]: Abstraction has has 151 places, 158 transitions, 914 flow [2021-03-24 11:45:57,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:57,057 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:45:57,057 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:45:57,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 11:45:57,057 INFO L428 AbstractCegarLoop]: === Iteration 5 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:45:57,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:45:57,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1118358302, now seen corresponding path program 2 times [2021-03-24 11:45:57,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:45:57,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111578728] [2021-03-24 11:45:57,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:45:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:45:57,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:57,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:45:57,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:57,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:45:57,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:57,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:45:57,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:57,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:45:57,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:57,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:45:57,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:57,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:45:57,291 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-24 11:45:57,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:45:57,306 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:45:57,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:45:57,321 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:45:57,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:45:57,337 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-03-24 11:45:57,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:45:57,357 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.6 percent of original size [2021-03-24 11:45:57,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:45:57,376 INFO L142 QuantifierPusher]: treesize reduction 47, result has 51.5 percent of original size [2021-03-24 11:45:57,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:45:57,408 INFO L142 QuantifierPusher]: treesize reduction 47, result has 51.5 percent of original size [2021-03-24 11:45:57,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:45:57,440 INFO L142 QuantifierPusher]: treesize reduction 70, result has 46.6 percent of original size [2021-03-24 11:45:57,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 11:45:57,484 INFO L142 QuantifierPusher]: treesize reduction 55, result has 68.0 percent of original size [2021-03-24 11:45:57,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-24 11:45:57,527 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:45:57,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:45:57,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:57,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:45:57,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:57,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:45:57,570 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:45:57,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:45:57,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:45:57,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:45:57,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:45:57,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111578728] [2021-03-24 11:45:57,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:45:57,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-03-24 11:45:57,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187006604] [2021-03-24 11:45:57,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:45:57,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:45:57,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:45:57,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:45:57,600 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 205 [2021-03-24 11:45:57,601 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 158 transitions, 914 flow. Second operand has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:45:57,601 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:45:57,601 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 205 [2021-03-24 11:45:57,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:46:00,291 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2021-03-24 11:46:00,416 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-24 11:46:00,705 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2021-03-24 11:46:00,844 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 68 [2021-03-24 11:46:01,166 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2021-03-24 11:46:01,334 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2021-03-24 11:46:01,518 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2021-03-24 11:46:01,679 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-03-24 11:46:01,959 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2021-03-24 11:46:02,276 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2021-03-24 11:46:03,030 INFO L129 PetriNetUnfolder]: 1445/3420 cut-off events. [2021-03-24 11:46:03,030 INFO L130 PetriNetUnfolder]: For 4544/4547 co-relation queries the response was YES. [2021-03-24 11:46:03,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10203 conditions, 3420 events. 1445/3420 cut-off events. For 4544/4547 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 18914 event pairs, 566 based on Foata normal form. 17/3253 useless extension candidates. Maximal degree in co-relation 10164. Up to 1589 conditions per place. [2021-03-24 11:46:03,054 INFO L132 encePairwiseOnDemand]: 177/205 looper letters, 267 selfloop transitions, 149 changer transitions 20/459 dead transitions. [2021-03-24 11:46:03,054 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 459 transitions, 3142 flow [2021-03-24 11:46:03,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-03-24 11:46:03,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-03-24 11:46:03,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 4041 transitions. [2021-03-24 11:46:03,064 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3650406504065041 [2021-03-24 11:46:03,064 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 4041 transitions. [2021-03-24 11:46:03,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 4041 transitions. [2021-03-24 11:46:03,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:46:03,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 4041 transitions. [2021-03-24 11:46:03,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 74.83333333333333) internal successors, (4041), 54 states have internal predecessors, (4041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:03,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 205.0) internal successors, (11275), 55 states have internal predecessors, (11275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:03,085 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 205.0) internal successors, (11275), 55 states have internal predecessors, (11275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:03,085 INFO L185 Difference]: Start difference. First operand has 151 places, 158 transitions, 914 flow. Second operand 54 states and 4041 transitions. [2021-03-24 11:46:03,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 459 transitions, 3142 flow [2021-03-24 11:46:03,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 459 transitions, 3094 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-03-24 11:46:03,108 INFO L241 Difference]: Finished difference. Result has 238 places, 247 transitions, 2045 flow [2021-03-24 11:46:03,108 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=891, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=2045, PETRI_PLACES=238, PETRI_TRANSITIONS=247} [2021-03-24 11:46:03,108 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 164 predicate places. [2021-03-24 11:46:03,108 INFO L480 AbstractCegarLoop]: Abstraction has has 238 places, 247 transitions, 2045 flow [2021-03-24 11:46:03,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:03,109 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:46:03,109 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:46:03,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 11:46:03,109 INFO L428 AbstractCegarLoop]: === Iteration 6 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:46:03,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:46:03,110 INFO L82 PathProgramCache]: Analyzing trace with hash 847600932, now seen corresponding path program 3 times [2021-03-24 11:46:03,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:46:03,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960758459] [2021-03-24 11:46:03,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:46:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:46:03,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:03,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:03,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:03,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:46:03,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:03,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:46:03,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:03,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:03,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:03,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:03,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:03,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:03,252 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 11:46:03,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:46:03,265 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:46:03,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:46:03,280 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:46:03,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:46:03,297 INFO L142 QuantifierPusher]: treesize reduction 23, result has 55.8 percent of original size [2021-03-24 11:46:03,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:46:03,313 INFO L142 QuantifierPusher]: treesize reduction 23, result has 55.8 percent of original size [2021-03-24 11:46:03,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:46:03,333 INFO L142 QuantifierPusher]: treesize reduction 30, result has 57.7 percent of original size [2021-03-24 11:46:03,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:46:03,361 INFO L142 QuantifierPusher]: treesize reduction 30, result has 55.2 percent of original size [2021-03-24 11:46:03,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:46:03,391 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:46:03,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:46:03,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:03,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:46:03,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:03,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:46:03,432 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:46:03,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:46:03,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:03,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:03,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:46:03,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960758459] [2021-03-24 11:46:03,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:46:03,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:46:03,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412495970] [2021-03-24 11:46:03,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:46:03,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:46:03,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:46:03,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:46:03,460 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 205 [2021-03-24 11:46:03,461 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 247 transitions, 2045 flow. Second operand has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:03,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:46:03,461 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 205 [2021-03-24 11:46:03,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:46:06,103 INFO L129 PetriNetUnfolder]: 1426/3413 cut-off events. [2021-03-24 11:46:06,104 INFO L130 PetriNetUnfolder]: For 15556/15671 co-relation queries the response was YES. [2021-03-24 11:46:06,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13481 conditions, 3413 events. 1426/3413 cut-off events. For 15556/15671 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 20731 event pairs, 532 based on Foata normal form. 12/3302 useless extension candidates. Maximal degree in co-relation 13405. Up to 1847 conditions per place. [2021-03-24 11:46:06,149 INFO L132 encePairwiseOnDemand]: 180/205 looper letters, 309 selfloop transitions, 120 changer transitions 1/466 dead transitions. [2021-03-24 11:46:06,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 466 transitions, 4779 flow [2021-03-24 11:46:06,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-24 11:46:06,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-03-24 11:46:06,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2653 transitions. [2021-03-24 11:46:06,153 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41746656176239183 [2021-03-24 11:46:06,153 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 2653 transitions. [2021-03-24 11:46:06,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 2653 transitions. [2021-03-24 11:46:06,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:46:06,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 2653 transitions. [2021-03-24 11:46:06,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 85.58064516129032) internal successors, (2653), 31 states have internal predecessors, (2653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:06,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 205.0) internal successors, (6560), 32 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:06,166 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 205.0) internal successors, (6560), 32 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:06,167 INFO L185 Difference]: Start difference. First operand has 238 places, 247 transitions, 2045 flow. Second operand 31 states and 2653 transitions. [2021-03-24 11:46:06,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 466 transitions, 4779 flow [2021-03-24 11:46:06,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 466 transitions, 4299 flow, removed 78 selfloop flow, removed 13 redundant places. [2021-03-24 11:46:06,220 INFO L241 Difference]: Finished difference. Result has 275 places, 311 transitions, 2832 flow [2021-03-24 11:46:06,221 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=1752, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=2832, PETRI_PLACES=275, PETRI_TRANSITIONS=311} [2021-03-24 11:46:06,221 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 201 predicate places. [2021-03-24 11:46:06,221 INFO L480 AbstractCegarLoop]: Abstraction has has 275 places, 311 transitions, 2832 flow [2021-03-24 11:46:06,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:06,222 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:46:06,222 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:46:06,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 11:46:06,222 INFO L428 AbstractCegarLoop]: === Iteration 7 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:46:06,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:46:06,223 INFO L82 PathProgramCache]: Analyzing trace with hash 62202066, now seen corresponding path program 4 times [2021-03-24 11:46:06,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:46:06,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367677094] [2021-03-24 11:46:06,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:46:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:46:06,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:06,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:06,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:06,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:46:06,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:06,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:46:06,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:06,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:06,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:06,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:06,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:06,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:06,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:06,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:06,337 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-24 11:46:06,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:46:06,350 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:46:06,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:06,364 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-03-24 11:46:06,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:46:06,382 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.6 percent of original size [2021-03-24 11:46:06,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:46:06,401 INFO L142 QuantifierPusher]: treesize reduction 47, result has 51.5 percent of original size [2021-03-24 11:46:06,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:46:06,437 INFO L142 QuantifierPusher]: treesize reduction 47, result has 51.5 percent of original size [2021-03-24 11:46:06,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:46:06,474 INFO L142 QuantifierPusher]: treesize reduction 70, result has 46.6 percent of original size [2021-03-24 11:46:06,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 11:46:06,524 INFO L142 QuantifierPusher]: treesize reduction 53, result has 68.8 percent of original size [2021-03-24 11:46:06,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-24 11:46:06,569 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:46:06,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:46:06,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:06,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:46:06,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:06,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:46:06,617 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:46:06,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:46:06,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:06,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:06,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:46:06,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367677094] [2021-03-24 11:46:06,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:46:06,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-03-24 11:46:06,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319225492] [2021-03-24 11:46:06,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:46:06,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:46:06,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:46:06,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:46:06,648 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 205 [2021-03-24 11:46:06,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 311 transitions, 2832 flow. Second operand has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:06,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:46:06,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 205 [2021-03-24 11:46:06,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:46:09,111 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2021-03-24 11:46:09,527 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2021-03-24 11:46:09,659 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 68 [2021-03-24 11:46:09,844 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2021-03-24 11:46:09,993 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2021-03-24 11:46:10,316 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2021-03-24 11:46:10,451 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-03-24 11:46:10,774 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2021-03-24 11:46:11,110 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2021-03-24 11:46:12,546 INFO L129 PetriNetUnfolder]: 2423/5391 cut-off events. [2021-03-24 11:46:12,546 INFO L130 PetriNetUnfolder]: For 41927/41929 co-relation queries the response was YES. [2021-03-24 11:46:12,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25461 conditions, 5391 events. 2423/5391 cut-off events. For 41927/41929 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 33584 event pairs, 843 based on Foata normal form. 19/5280 useless extension candidates. Maximal degree in co-relation 25366. Up to 2830 conditions per place. [2021-03-24 11:46:12,658 INFO L132 encePairwiseOnDemand]: 177/205 looper letters, 442 selfloop transitions, 170 changer transitions 22/657 dead transitions. [2021-03-24 11:46:12,658 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 657 transitions, 7500 flow [2021-03-24 11:46:12,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-03-24 11:46:12,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2021-03-24 11:46:12,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 3855 transitions. [2021-03-24 11:46:12,663 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36872309899569583 [2021-03-24 11:46:12,664 INFO L72 ComplementDD]: Start complementDD. Operand 51 states and 3855 transitions. [2021-03-24 11:46:12,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 3855 transitions. [2021-03-24 11:46:12,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:46:12,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 51 states and 3855 transitions. [2021-03-24 11:46:12,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 52 states, 51 states have (on average 75.58823529411765) internal successors, (3855), 51 states have internal predecessors, (3855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:12,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 52 states, 52 states have (on average 205.0) internal successors, (10660), 52 states have internal predecessors, (10660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:12,682 INFO L81 ComplementDD]: Finished complementDD. Result has 52 states, 52 states have (on average 205.0) internal successors, (10660), 52 states have internal predecessors, (10660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:12,683 INFO L185 Difference]: Start difference. First operand has 275 places, 311 transitions, 2832 flow. Second operand 51 states and 3855 transitions. [2021-03-24 11:46:12,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 657 transitions, 7500 flow [2021-03-24 11:46:12,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 657 transitions, 7134 flow, removed 117 selfloop flow, removed 6 redundant places. [2021-03-24 11:46:12,812 INFO L241 Difference]: Finished difference. Result has 359 places, 433 transitions, 4814 flow [2021-03-24 11:46:12,812 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=2552, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=4814, PETRI_PLACES=359, PETRI_TRANSITIONS=433} [2021-03-24 11:46:12,812 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 285 predicate places. [2021-03-24 11:46:12,813 INFO L480 AbstractCegarLoop]: Abstraction has has 359 places, 433 transitions, 4814 flow [2021-03-24 11:46:12,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:12,813 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:46:12,813 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:46:12,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 11:46:12,814 INFO L428 AbstractCegarLoop]: === Iteration 8 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:46:12,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:46:12,814 INFO L82 PathProgramCache]: Analyzing trace with hash 69037188, now seen corresponding path program 5 times [2021-03-24 11:46:12,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:46:12,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234101782] [2021-03-24 11:46:12,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:46:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:46:12,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:12,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:12,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:12,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:46:12,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:12,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:46:12,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:12,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:12,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:12,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:12,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:12,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:12,895 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.1 percent of original size [2021-03-24 11:46:12,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:46:12,908 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.1 percent of original size [2021-03-24 11:46:12,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:46:12,922 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.1 percent of original size [2021-03-24 11:46:12,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:46:12,938 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.7 percent of original size [2021-03-24 11:46:12,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:46:12,962 INFO L142 QuantifierPusher]: treesize reduction 24, result has 66.2 percent of original size [2021-03-24 11:46:12,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:46:12,989 INFO L142 QuantifierPusher]: treesize reduction 24, result has 64.2 percent of original size [2021-03-24 11:46:12,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:46:13,015 INFO L142 QuantifierPusher]: treesize reduction 43, result has 48.8 percent of original size [2021-03-24 11:46:13,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:46:13,041 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:46:13,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:46:13,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:13,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:46:13,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:13,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:46:13,081 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:46:13,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:46:13,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:13,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:13,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:46:13,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234101782] [2021-03-24 11:46:13,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:46:13,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:46:13,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647835401] [2021-03-24 11:46:13,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:46:13,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:46:13,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:46:13,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:46:13,108 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 205 [2021-03-24 11:46:13,109 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 433 transitions, 4814 flow. Second operand has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:13,109 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:46:13,109 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 205 [2021-03-24 11:46:13,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:46:13,840 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2021-03-24 11:46:15,786 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2021-03-24 11:46:16,034 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2021-03-24 11:46:17,905 INFO L129 PetriNetUnfolder]: 2210/5091 cut-off events. [2021-03-24 11:46:17,905 INFO L130 PetriNetUnfolder]: For 77446/77773 co-relation queries the response was YES. [2021-03-24 11:46:17,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29107 conditions, 5091 events. 2210/5091 cut-off events. For 77446/77773 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 34406 event pairs, 633 based on Foata normal form. 16/4938 useless extension candidates. Maximal degree in co-relation 28972. Up to 2271 conditions per place. [2021-03-24 11:46:17,987 INFO L132 encePairwiseOnDemand]: 180/205 looper letters, 458 selfloop transitions, 235 changer transitions 1/738 dead transitions. [2021-03-24 11:46:17,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 738 transitions, 10011 flow [2021-03-24 11:46:17,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-03-24 11:46:17,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2021-03-24 11:46:17,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 3394 transitions. [2021-03-24 11:46:17,991 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4139024390243902 [2021-03-24 11:46:17,991 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 3394 transitions. [2021-03-24 11:46:17,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 3394 transitions. [2021-03-24 11:46:17,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:46:17,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 3394 transitions. [2021-03-24 11:46:17,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 84.85) internal successors, (3394), 40 states have internal predecessors, (3394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:18,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 205.0) internal successors, (8405), 41 states have internal predecessors, (8405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:18,005 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 205.0) internal successors, (8405), 41 states have internal predecessors, (8405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:18,006 INFO L185 Difference]: Start difference. First operand has 359 places, 433 transitions, 4814 flow. Second operand 40 states and 3394 transitions. [2021-03-24 11:46:18,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 738 transitions, 10011 flow [2021-03-24 11:46:18,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 738 transitions, 9188 flow, removed 406 selfloop flow, removed 3 redundant places. [2021-03-24 11:46:18,438 INFO L241 Difference]: Finished difference. Result has 426 places, 541 transitions, 6979 flow [2021-03-24 11:46:18,439 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=4118, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=6979, PETRI_PLACES=426, PETRI_TRANSITIONS=541} [2021-03-24 11:46:18,439 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 352 predicate places. [2021-03-24 11:46:18,439 INFO L480 AbstractCegarLoop]: Abstraction has has 426 places, 541 transitions, 6979 flow [2021-03-24 11:46:18,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:18,440 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:46:18,440 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:46:18,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 11:46:18,440 INFO L428 AbstractCegarLoop]: === Iteration 9 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:46:18,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:46:18,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1011473790, now seen corresponding path program 6 times [2021-03-24 11:46:18,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:46:18,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903065249] [2021-03-24 11:46:18,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:46:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:46:18,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:18,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:18,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:18,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:46:18,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:18,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:46:18,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:18,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:18,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:18,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:18,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:18,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:18,563 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-24 11:46:18,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:46:18,578 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-24 11:46:18,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:46:18,590 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:46:18,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:18,604 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-03-24 11:46:18,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:46:18,619 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.6 percent of original size [2021-03-24 11:46:18,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:46:18,664 INFO L142 QuantifierPusher]: treesize reduction 47, result has 51.5 percent of original size [2021-03-24 11:46:18,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:46:18,695 INFO L142 QuantifierPusher]: treesize reduction 47, result has 51.5 percent of original size [2021-03-24 11:46:18,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:46:18,725 INFO L142 QuantifierPusher]: treesize reduction 70, result has 46.6 percent of original size [2021-03-24 11:46:18,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 11:46:18,766 INFO L142 QuantifierPusher]: treesize reduction 55, result has 68.0 percent of original size [2021-03-24 11:46:18,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-24 11:46:18,804 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:46:18,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:46:18,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:18,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:46:18,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:18,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:46:18,850 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:46:18,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:46:18,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:18,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:18,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:46:18,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903065249] [2021-03-24 11:46:18,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:46:18,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-03-24 11:46:18,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426532211] [2021-03-24 11:46:18,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:46:18,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:46:18,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:46:18,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:46:18,877 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 205 [2021-03-24 11:46:18,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 541 transitions, 6979 flow. Second operand has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:18,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:46:18,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 205 [2021-03-24 11:46:18,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:46:21,070 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2021-03-24 11:46:21,409 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2021-03-24 11:46:21,544 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2021-03-24 11:46:21,685 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-24 11:46:21,957 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2021-03-24 11:46:22,098 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2021-03-24 11:46:22,238 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 68 [2021-03-24 11:46:22,497 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2021-03-24 11:46:22,653 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2021-03-24 11:46:22,791 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2021-03-24 11:46:23,044 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2021-03-24 11:46:23,185 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-03-24 11:46:23,620 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2021-03-24 11:46:24,040 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2021-03-24 11:46:26,439 INFO L129 PetriNetUnfolder]: 3093/6703 cut-off events. [2021-03-24 11:46:26,439 INFO L130 PetriNetUnfolder]: For 137476/137484 co-relation queries the response was YES. [2021-03-24 11:46:26,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42778 conditions, 6703 events. 3093/6703 cut-off events. For 137476/137484 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 43813 event pairs, 790 based on Foata normal form. 19/6569 useless extension candidates. Maximal degree in co-relation 42612. Up to 2414 conditions per place. [2021-03-24 11:46:26,594 INFO L132 encePairwiseOnDemand]: 177/205 looper letters, 498 selfloop transitions, 413 changer transitions 34/968 dead transitions. [2021-03-24 11:46:26,594 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 968 transitions, 15251 flow [2021-03-24 11:46:26,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-03-24 11:46:26,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2021-03-24 11:46:26,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 4338 transitions. [2021-03-24 11:46:26,599 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3712451861360719 [2021-03-24 11:46:26,599 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 4338 transitions. [2021-03-24 11:46:26,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 4338 transitions. [2021-03-24 11:46:26,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:46:26,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 4338 transitions. [2021-03-24 11:46:26,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 76.10526315789474) internal successors, (4338), 57 states have internal predecessors, (4338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:26,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 205.0) internal successors, (11890), 58 states have internal predecessors, (11890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:26,618 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 205.0) internal successors, (11890), 58 states have internal predecessors, (11890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:26,618 INFO L185 Difference]: Start difference. First operand has 426 places, 541 transitions, 6979 flow. Second operand 57 states and 4338 transitions. [2021-03-24 11:46:26,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 968 transitions, 15251 flow [2021-03-24 11:46:27,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 968 transitions, 14062 flow, removed 539 selfloop flow, removed 5 redundant places. [2021-03-24 11:46:27,108 INFO L241 Difference]: Finished difference. Result has 511 places, 644 transitions, 9275 flow [2021-03-24 11:46:27,109 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=6086, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=315, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=9275, PETRI_PLACES=511, PETRI_TRANSITIONS=644} [2021-03-24 11:46:27,109 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 437 predicate places. [2021-03-24 11:46:27,109 INFO L480 AbstractCegarLoop]: Abstraction has has 511 places, 644 transitions, 9275 flow [2021-03-24 11:46:27,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:27,109 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:46:27,109 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:46:27,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 11:46:27,110 INFO L428 AbstractCegarLoop]: === Iteration 10 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:46:27,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:46:27,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1833859088, now seen corresponding path program 7 times [2021-03-24 11:46:27,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:46:27,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596130662] [2021-03-24 11:46:27,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:46:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:46:27,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:27,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:27,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:27,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:46:27,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:27,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:46:27,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:27,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:27,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:27,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:27,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:27,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:27,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:27,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:27,230 INFO L142 QuantifierPusher]: treesize reduction 17, result has 65.3 percent of original size [2021-03-24 11:46:27,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:46:27,246 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:46:27,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:46:27,262 INFO L142 QuantifierPusher]: treesize reduction 33, result has 53.5 percent of original size [2021-03-24 11:46:27,263 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:46:27,322 INFO L142 QuantifierPusher]: treesize reduction 33, result has 53.5 percent of original size [2021-03-24 11:46:27,323 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:46:27,347 INFO L142 QuantifierPusher]: treesize reduction 48, result has 46.7 percent of original size [2021-03-24 11:46:27,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:46:27,372 INFO L142 QuantifierPusher]: treesize reduction 48, result has 44.2 percent of original size [2021-03-24 11:46:27,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:46:27,396 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:46:27,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:46:27,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:27,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:46:27,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:27,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:46:27,436 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:46:27,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:46:27,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:27,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:27,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:46:27,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596130662] [2021-03-24 11:46:27,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:46:27,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:46:27,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196483489] [2021-03-24 11:46:27,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:46:27,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:46:27,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:46:27,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:46:27,461 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 205 [2021-03-24 11:46:27,462 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 644 transitions, 9275 flow. Second operand has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:27,462 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:46:27,462 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 205 [2021-03-24 11:46:27,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:46:29,375 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2021-03-24 11:46:30,131 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 11:46:32,281 INFO L129 PetriNetUnfolder]: 2764/6304 cut-off events. [2021-03-24 11:46:32,282 INFO L130 PetriNetUnfolder]: For 205620/206560 co-relation queries the response was YES. [2021-03-24 11:46:32,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46124 conditions, 6304 events. 2764/6304 cut-off events. For 205620/206560 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 45190 event pairs, 805 based on Foata normal form. 16/6120 useless extension candidates. Maximal degree in co-relation 45924. Up to 3270 conditions per place. [2021-03-24 11:46:32,487 INFO L132 encePairwiseOnDemand]: 180/205 looper letters, 648 selfloop transitions, 190 changer transitions 1/891 dead transitions. [2021-03-24 11:46:32,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 891 transitions, 14942 flow [2021-03-24 11:46:32,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-24 11:46:32,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-03-24 11:46:32,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2659 transitions. [2021-03-24 11:46:32,491 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4184107002360346 [2021-03-24 11:46:32,491 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 2659 transitions. [2021-03-24 11:46:32,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 2659 transitions. [2021-03-24 11:46:32,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:46:32,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 2659 transitions. [2021-03-24 11:46:32,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 85.7741935483871) internal successors, (2659), 31 states have internal predecessors, (2659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:32,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 205.0) internal successors, (6560), 32 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:32,501 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 205.0) internal successors, (6560), 32 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:32,502 INFO L185 Difference]: Start difference. First operand has 511 places, 644 transitions, 9275 flow. Second operand 31 states and 2659 transitions. [2021-03-24 11:46:32,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 891 transitions, 14942 flow [2021-03-24 11:46:33,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 891 transitions, 13266 flow, removed 685 selfloop flow, removed 8 redundant places. [2021-03-24 11:46:33,602 INFO L241 Difference]: Finished difference. Result has 556 places, 710 transitions, 10213 flow [2021-03-24 11:46:33,603 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=8047, PETRI_DIFFERENCE_MINUEND_PLACES=503, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=10213, PETRI_PLACES=556, PETRI_TRANSITIONS=710} [2021-03-24 11:46:33,603 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 482 predicate places. [2021-03-24 11:46:33,603 INFO L480 AbstractCegarLoop]: Abstraction has has 556 places, 710 transitions, 10213 flow [2021-03-24 11:46:33,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:33,604 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:46:33,604 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:46:33,604 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 11:46:33,604 INFO L428 AbstractCegarLoop]: === Iteration 11 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:46:33,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:46:33,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1123952704, now seen corresponding path program 8 times [2021-03-24 11:46:33,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:46:33,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504431800] [2021-03-24 11:46:33,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:46:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:46:33,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:33,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:33,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:33,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:46:33,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:33,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:46:33,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:33,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:33,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:33,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:33,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:33,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:33,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:33,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:33,704 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-24 11:46:33,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:46:33,718 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.6 percent of original size [2021-03-24 11:46:33,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:46:33,745 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-03-24 11:46:33,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:46:33,762 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.6 percent of original size [2021-03-24 11:46:33,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:46:33,779 INFO L142 QuantifierPusher]: treesize reduction 47, result has 51.5 percent of original size [2021-03-24 11:46:33,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:46:33,810 INFO L142 QuantifierPusher]: treesize reduction 47, result has 51.5 percent of original size [2021-03-24 11:46:33,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:46:33,841 INFO L142 QuantifierPusher]: treesize reduction 70, result has 46.6 percent of original size [2021-03-24 11:46:33,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 11:46:33,885 INFO L142 QuantifierPusher]: treesize reduction 55, result has 68.0 percent of original size [2021-03-24 11:46:33,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-24 11:46:33,920 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:46:33,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:46:33,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:33,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:46:33,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:33,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:46:33,960 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:46:33,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:46:33,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:33,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:33,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:46:33,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504431800] [2021-03-24 11:46:33,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:46:33,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-03-24 11:46:33,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762769882] [2021-03-24 11:46:33,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:46:33,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:46:33,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:46:33,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:46:33,986 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 205 [2021-03-24 11:46:33,987 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 710 transitions, 10213 flow. Second operand has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:33,987 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:46:33,987 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 205 [2021-03-24 11:46:33,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:46:34,763 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-24 11:46:36,865 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2021-03-24 11:46:37,118 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-24 11:46:37,382 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2021-03-24 11:46:37,524 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2021-03-24 11:46:37,718 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 68 [2021-03-24 11:46:37,981 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2021-03-24 11:46:38,134 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2021-03-24 11:46:38,547 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2021-03-24 11:46:38,692 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-03-24 11:46:39,059 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2021-03-24 11:46:39,544 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2021-03-24 11:46:43,011 INFO L129 PetriNetUnfolder]: 3730/8034 cut-off events. [2021-03-24 11:46:43,012 INFO L130 PetriNetUnfolder]: For 298954/298968 co-relation queries the response was YES. [2021-03-24 11:46:43,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62017 conditions, 8034 events. 3730/8034 cut-off events. For 298954/298968 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 55405 event pairs, 1299 based on Foata normal form. 27/7885 useless extension candidates. Maximal degree in co-relation 61794. Up to 4125 conditions per place. [2021-03-24 11:46:43,285 INFO L132 encePairwiseOnDemand]: 177/205 looper letters, 717 selfloop transitions, 317 changer transitions 22/1079 dead transitions. [2021-03-24 11:46:43,285 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 609 places, 1079 transitions, 19759 flow [2021-03-24 11:46:43,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-03-24 11:46:43,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-03-24 11:46:43,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 4130 transitions. [2021-03-24 11:46:43,290 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37308039747064137 [2021-03-24 11:46:43,291 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 4130 transitions. [2021-03-24 11:46:43,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 4130 transitions. [2021-03-24 11:46:43,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:46:43,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 4130 transitions. [2021-03-24 11:46:43,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 76.48148148148148) internal successors, (4130), 54 states have internal predecessors, (4130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:43,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 205.0) internal successors, (11275), 55 states have internal predecessors, (11275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:43,307 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 205.0) internal successors, (11275), 55 states have internal predecessors, (11275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:43,307 INFO L185 Difference]: Start difference. First operand has 556 places, 710 transitions, 10213 flow. Second operand 54 states and 4130 transitions. [2021-03-24 11:46:43,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 609 places, 1079 transitions, 19759 flow [2021-03-24 11:46:44,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 605 places, 1079 transitions, 17865 flow, removed 920 selfloop flow, removed 4 redundant places. [2021-03-24 11:46:44,502 INFO L241 Difference]: Finished difference. Result has 641 places, 802 transitions, 12454 flow [2021-03-24 11:46:44,503 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=9324, PETRI_DIFFERENCE_MINUEND_PLACES=552, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=710, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=12454, PETRI_PLACES=641, PETRI_TRANSITIONS=802} [2021-03-24 11:46:44,503 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 567 predicate places. [2021-03-24 11:46:44,503 INFO L480 AbstractCegarLoop]: Abstraction has has 641 places, 802 transitions, 12454 flow [2021-03-24 11:46:44,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:44,504 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:46:44,504 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:46:44,504 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 11:46:44,504 INFO L428 AbstractCegarLoop]: === Iteration 12 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:46:44,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:46:44,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1520432772, now seen corresponding path program 9 times [2021-03-24 11:46:44,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:46:44,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101046932] [2021-03-24 11:46:44,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:46:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:46:44,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:44,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:44,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:44,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:46:44,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:44,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:46:44,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:44,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:44,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:44,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:44,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:44,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:46:44,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:44,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:46:44,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:44,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:46:44,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:44,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:46:44,636 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.6 percent of original size [2021-03-24 11:46:44,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:46:44,653 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.6 percent of original size [2021-03-24 11:46:44,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:46:44,670 INFO L142 QuantifierPusher]: treesize reduction 32, result has 62.4 percent of original size [2021-03-24 11:46:44,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:46:44,701 INFO L142 QuantifierPusher]: treesize reduction 58, result has 52.5 percent of original size [2021-03-24 11:46:44,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:46:44,743 INFO L142 QuantifierPusher]: treesize reduction 58, result has 50.8 percent of original size [2021-03-24 11:46:44,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:46:44,786 INFO L142 QuantifierPusher]: treesize reduction 51, result has 68.1 percent of original size [2021-03-24 11:46:44,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-03-24 11:46:44,827 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:46:44,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:46:44,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:44,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:46:44,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:44,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:46:44,874 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:46:44,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:46:44,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:44,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:44,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:46:44,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101046932] [2021-03-24 11:46:44,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:46:44,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-03-24 11:46:44,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501272889] [2021-03-24 11:46:44,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:46:44,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:46:44,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:46:44,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:46:44,903 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 205 [2021-03-24 11:46:44,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 641 places, 802 transitions, 12454 flow. Second operand has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:44,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:46:44,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 205 [2021-03-24 11:46:44,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:46:46,542 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-24 11:46:46,960 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-03-24 11:46:47,084 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2021-03-24 11:46:47,369 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-03-24 11:46:47,511 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 69 [2021-03-24 11:46:47,836 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 69 [2021-03-24 11:46:48,000 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 72 [2021-03-24 11:46:48,133 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2021-03-24 11:46:48,411 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 71 [2021-03-24 11:46:48,603 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2021-03-24 11:46:48,782 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 11:46:49,058 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75 [2021-03-24 11:46:49,265 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2021-03-24 11:46:49,395 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-03-24 11:46:49,675 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 73 [2021-03-24 11:46:49,942 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 71 [2021-03-24 11:46:53,921 INFO L129 PetriNetUnfolder]: 4195/8923 cut-off events. [2021-03-24 11:46:53,921 INFO L130 PetriNetUnfolder]: For 377984/378001 co-relation queries the response was YES. [2021-03-24 11:46:54,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73297 conditions, 8923 events. 4195/8923 cut-off events. For 377984/378001 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 63396 event pairs, 1390 based on Foata normal form. 86/8818 useless extension candidates. Maximal degree in co-relation 73038. Up to 4896 conditions per place. [2021-03-24 11:46:54,304 INFO L132 encePairwiseOnDemand]: 177/205 looper letters, 857 selfloop transitions, 273 changer transitions 0/1153 dead transitions. [2021-03-24 11:46:54,305 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 682 places, 1153 transitions, 21654 flow [2021-03-24 11:46:54,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-03-24 11:46:54,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-03-24 11:46:54,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 3202 transitions. [2021-03-24 11:46:54,328 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3718931475029036 [2021-03-24 11:46:54,328 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 3202 transitions. [2021-03-24 11:46:54,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 3202 transitions. [2021-03-24 11:46:54,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:46:54,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 3202 transitions. [2021-03-24 11:46:54,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 76.23809523809524) internal successors, (3202), 42 states have internal predecessors, (3202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:54,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 205.0) internal successors, (8815), 43 states have internal predecessors, (8815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:54,361 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 205.0) internal successors, (8815), 43 states have internal predecessors, (8815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:54,361 INFO L185 Difference]: Start difference. First operand has 641 places, 802 transitions, 12454 flow. Second operand 42 states and 3202 transitions. [2021-03-24 11:46:54,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 682 places, 1153 transitions, 21654 flow [2021-03-24 11:46:56,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 673 places, 1153 transitions, 20362 flow, removed 533 selfloop flow, removed 9 redundant places. [2021-03-24 11:46:56,231 INFO L241 Difference]: Finished difference. Result has 707 places, 922 transitions, 15836 flow [2021-03-24 11:46:56,232 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=11210, PETRI_DIFFERENCE_MINUEND_PLACES=632, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=802, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=15836, PETRI_PLACES=707, PETRI_TRANSITIONS=922} [2021-03-24 11:46:56,232 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 633 predicate places. [2021-03-24 11:46:56,232 INFO L480 AbstractCegarLoop]: Abstraction has has 707 places, 922 transitions, 15836 flow [2021-03-24 11:46:56,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:56,233 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:46:56,233 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:46:56,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 11:46:56,233 INFO L428 AbstractCegarLoop]: === Iteration 13 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:46:56,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:46:56,233 INFO L82 PathProgramCache]: Analyzing trace with hash 833234348, now seen corresponding path program 10 times [2021-03-24 11:46:56,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:46:56,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983701895] [2021-03-24 11:46:56,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:46:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:46:56,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:56,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:56,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:56,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:46:56,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:56,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:46:56,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:56,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:56,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:56,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:56,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:56,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:56,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:56,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:56,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:56,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:46:56,337 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.1 percent of original size [2021-03-24 11:46:56,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:46:56,353 INFO L142 QuantifierPusher]: treesize reduction 15, result has 70.0 percent of original size [2021-03-24 11:46:56,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:46:56,371 INFO L142 QuantifierPusher]: treesize reduction 27, result has 62.0 percent of original size [2021-03-24 11:46:56,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:46:56,396 INFO L142 QuantifierPusher]: treesize reduction 47, result has 48.9 percent of original size [2021-03-24 11:46:56,397 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.4 percent of original size 38 [2021-03-24 11:46:56,425 INFO L142 QuantifierPusher]: treesize reduction 47, result has 46.6 percent of original size [2021-03-24 11:46:56,425 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size 34 [2021-03-24 11:46:56,452 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:46:56,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:46:56,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:56,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:46:56,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:56,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:46:56,490 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:46:56,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:46:56,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:46:56,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:46:56,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:46:56,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983701895] [2021-03-24 11:46:56,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:46:56,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:46:56,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141225160] [2021-03-24 11:46:56,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:46:56,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:46:56,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:46:56,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:46:56,515 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 205 [2021-03-24 11:46:56,516 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 707 places, 922 transitions, 15836 flow. Second operand has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:46:56,516 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:46:56,516 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 205 [2021-03-24 11:46:56,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:47:00,588 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2021-03-24 11:47:02,202 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-24 11:47:06,406 INFO L129 PetriNetUnfolder]: 3874/8589 cut-off events. [2021-03-24 11:47:06,406 INFO L130 PetriNetUnfolder]: For 489505/489528 co-relation queries the response was YES. [2021-03-24 11:47:06,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77702 conditions, 8589 events. 3874/8589 cut-off events. For 489505/489528 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 65251 event pairs, 1277 based on Foata normal form. 19/8359 useless extension candidates. Maximal degree in co-relation 77409. Up to 4304 conditions per place. [2021-03-24 11:47:06,781 INFO L132 encePairwiseOnDemand]: 180/205 looper letters, 841 selfloop transitions, 338 changer transitions 0/1239 dead transitions. [2021-03-24 11:47:06,782 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 755 places, 1239 transitions, 24978 flow [2021-03-24 11:47:06,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-24 11:47:06,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-03-24 11:47:06,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 4142 transitions. [2021-03-24 11:47:06,786 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.412344449975112 [2021-03-24 11:47:06,786 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 4142 transitions. [2021-03-24 11:47:06,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 4142 transitions. [2021-03-24 11:47:06,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:47:06,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 4142 transitions. [2021-03-24 11:47:06,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 84.53061224489795) internal successors, (4142), 49 states have internal predecessors, (4142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:06,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 205.0) internal successors, (10250), 50 states have internal predecessors, (10250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:06,799 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 205.0) internal successors, (10250), 50 states have internal predecessors, (10250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:06,799 INFO L185 Difference]: Start difference. First operand has 707 places, 922 transitions, 15836 flow. Second operand 49 states and 4142 transitions. [2021-03-24 11:47:06,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 755 places, 1239 transitions, 24978 flow [2021-03-24 11:47:09,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 748 places, 1239 transitions, 22637 flow, removed 1124 selfloop flow, removed 7 redundant places. [2021-03-24 11:47:09,473 INFO L241 Difference]: Finished difference. Result has 787 places, 1056 transitions, 19258 flow [2021-03-24 11:47:09,474 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=13818, PETRI_DIFFERENCE_MINUEND_PLACES=700, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=922, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=221, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=19258, PETRI_PLACES=787, PETRI_TRANSITIONS=1056} [2021-03-24 11:47:09,474 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 713 predicate places. [2021-03-24 11:47:09,474 INFO L480 AbstractCegarLoop]: Abstraction has has 787 places, 1056 transitions, 19258 flow [2021-03-24 11:47:09,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:09,475 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:47:09,475 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:47:09,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 11:47:09,475 INFO L428 AbstractCegarLoop]: === Iteration 14 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:47:09,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:47:09,475 INFO L82 PathProgramCache]: Analyzing trace with hash 893018914, now seen corresponding path program 11 times [2021-03-24 11:47:09,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:47:09,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200625743] [2021-03-24 11:47:09,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:47:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:47:09,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:09,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:47:09,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:09,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:47:09,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:09,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:47:09,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:09,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:09,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:09,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:09,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:09,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:09,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:09,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:09,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:09,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:47:09,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:09,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:47:09,602 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.6 percent of original size [2021-03-24 11:47:09,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:47:09,619 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.6 percent of original size [2021-03-24 11:47:09,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:47:09,636 INFO L142 QuantifierPusher]: treesize reduction 41, result has 53.4 percent of original size [2021-03-24 11:47:09,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:47:09,662 INFO L142 QuantifierPusher]: treesize reduction 58, result has 52.5 percent of original size [2021-03-24 11:47:09,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:47:09,705 INFO L142 QuantifierPusher]: treesize reduction 58, result has 50.8 percent of original size [2021-03-24 11:47:09,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:47:09,749 INFO L142 QuantifierPusher]: treesize reduction 51, result has 68.1 percent of original size [2021-03-24 11:47:09,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-03-24 11:47:09,790 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:47:09,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:47:09,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:09,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:47:09,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:09,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:47:09,838 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:47:09,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:47:09,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:09,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:47:09,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:47:09,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200625743] [2021-03-24 11:47:09,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:47:09,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-03-24 11:47:09,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059851748] [2021-03-24 11:47:09,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:47:09,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:47:09,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:47:09,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:47:09,867 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 205 [2021-03-24 11:47:09,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 787 places, 1056 transitions, 19258 flow. Second operand has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:09,868 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:47:09,868 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 205 [2021-03-24 11:47:09,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:47:11,753 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-03-24 11:47:12,074 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2021-03-24 11:47:12,502 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 68 [2021-03-24 11:47:12,963 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2021-03-24 11:47:13,114 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2021-03-24 11:47:13,555 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 71 [2021-03-24 11:47:13,952 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2021-03-24 11:47:14,269 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 68 [2021-03-24 11:47:14,412 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 75 [2021-03-24 11:47:14,544 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 68 [2021-03-24 11:47:22,520 INFO L129 PetriNetUnfolder]: 5105/10738 cut-off events. [2021-03-24 11:47:22,521 INFO L130 PetriNetUnfolder]: For 549917/549937 co-relation queries the response was YES. [2021-03-24 11:47:23,332 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94827 conditions, 10738 events. 5105/10738 cut-off events. For 549917/549937 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 79453 event pairs, 1646 based on Foata normal form. 17/10534 useless extension candidates. Maximal degree in co-relation 94498. Up to 5908 conditions per place. [2021-03-24 11:47:23,390 INFO L132 encePairwiseOnDemand]: 178/205 looper letters, 1040 selfloop transitions, 318 changer transitions 0/1381 dead transitions. [2021-03-24 11:47:23,390 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 834 places, 1381 transitions, 29263 flow [2021-03-24 11:47:23,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-03-24 11:47:23,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-03-24 11:47:23,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 3622 transitions. [2021-03-24 11:47:23,393 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36808943089430896 [2021-03-24 11:47:23,394 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 3622 transitions. [2021-03-24 11:47:23,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 3622 transitions. [2021-03-24 11:47:23,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:47:23,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 3622 transitions. [2021-03-24 11:47:23,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 75.45833333333333) internal successors, (3622), 48 states have internal predecessors, (3622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:23,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 205.0) internal successors, (10045), 49 states have internal predecessors, (10045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:23,405 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 205.0) internal successors, (10045), 49 states have internal predecessors, (10045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:23,405 INFO L185 Difference]: Start difference. First operand has 787 places, 1056 transitions, 19258 flow. Second operand 48 states and 3622 transitions. [2021-03-24 11:47:23,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 834 places, 1381 transitions, 29263 flow [2021-03-24 11:47:26,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 831 places, 1381 transitions, 26649 flow, removed 1301 selfloop flow, removed 3 redundant places. [2021-03-24 11:47:26,874 INFO L241 Difference]: Finished difference. Result has 871 places, 1176 transitions, 22191 flow [2021-03-24 11:47:26,875 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=16797, PETRI_DIFFERENCE_MINUEND_PLACES=784, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=822, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=22191, PETRI_PLACES=871, PETRI_TRANSITIONS=1176} [2021-03-24 11:47:26,875 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 797 predicate places. [2021-03-24 11:47:26,875 INFO L480 AbstractCegarLoop]: Abstraction has has 871 places, 1176 transitions, 22191 flow [2021-03-24 11:47:26,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:26,876 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:47:26,876 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:47:26,876 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 11:47:26,876 INFO L428 AbstractCegarLoop]: === Iteration 15 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:47:26,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:47:26,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1279318558, now seen corresponding path program 12 times [2021-03-24 11:47:26,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:47:26,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103751105] [2021-03-24 11:47:26,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:47:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:47:26,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:26,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:47:26,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:26,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:47:26,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:26,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:47:26,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:26,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:26,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:26,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:26,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:26,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:26,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:26,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:27,004 INFO L142 QuantifierPusher]: treesize reduction 17, result has 65.3 percent of original size [2021-03-24 11:47:27,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:47:27,017 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:47:27,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:47:27,032 INFO L142 QuantifierPusher]: treesize reduction 33, result has 53.5 percent of original size [2021-03-24 11:47:27,044 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:47:27,066 INFO L142 QuantifierPusher]: treesize reduction 33, result has 53.5 percent of original size [2021-03-24 11:47:27,067 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:47:27,091 INFO L142 QuantifierPusher]: treesize reduction 48, result has 46.7 percent of original size [2021-03-24 11:47:27,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:47:27,114 INFO L142 QuantifierPusher]: treesize reduction 48, result has 44.2 percent of original size [2021-03-24 11:47:27,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:47:27,138 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:47:27,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:47:27,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:27,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:47:27,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:27,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:47:27,174 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:47:27,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:47:27,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:27,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:47:27,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:47:27,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103751105] [2021-03-24 11:47:27,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:47:27,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:47:27,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816042708] [2021-03-24 11:47:27,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:47:27,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:47:27,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:47:27,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:47:27,199 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 205 [2021-03-24 11:47:27,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 871 places, 1176 transitions, 22191 flow. Second operand has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:27,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:47:27,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 205 [2021-03-24 11:47:27,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:47:35,785 INFO L129 PetriNetUnfolder]: 4447/9840 cut-off events. [2021-03-24 11:47:35,785 INFO L130 PetriNetUnfolder]: For 551801/551824 co-relation queries the response was YES. [2021-03-24 11:47:36,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88711 conditions, 9840 events. 4447/9840 cut-off events. For 551801/551824 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 77619 event pairs, 1350 based on Foata normal form. 25/9579 useless extension candidates. Maximal degree in co-relation 88342. Up to 5105 conditions per place. [2021-03-24 11:47:36,106 INFO L132 encePairwiseOnDemand]: 180/205 looper letters, 1044 selfloop transitions, 412 changer transitions 0/1518 dead transitions. [2021-03-24 11:47:36,107 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 901 places, 1518 transitions, 31369 flow [2021-03-24 11:47:36,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-24 11:47:36,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-03-24 11:47:36,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2650 transitions. [2021-03-24 11:47:36,109 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4169944925255704 [2021-03-24 11:47:36,109 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 2650 transitions. [2021-03-24 11:47:36,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 2650 transitions. [2021-03-24 11:47:36,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:47:36,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 2650 transitions. [2021-03-24 11:47:36,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 85.48387096774194) internal successors, (2650), 31 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:36,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 205.0) internal successors, (6560), 32 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:36,115 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 205.0) internal successors, (6560), 32 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:36,115 INFO L185 Difference]: Start difference. First operand has 871 places, 1176 transitions, 22191 flow. Second operand 31 states and 2650 transitions. [2021-03-24 11:47:36,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 901 places, 1518 transitions, 31369 flow [2021-03-24 11:47:39,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 898 places, 1518 transitions, 28511 flow, removed 1422 selfloop flow, removed 3 redundant places. [2021-03-24 11:47:39,839 INFO L241 Difference]: Finished difference. Result has 919 places, 1250 transitions, 22900 flow [2021-03-24 11:47:39,840 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=19333, PETRI_DIFFERENCE_MINUEND_PLACES=868, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=343, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=809, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=22900, PETRI_PLACES=919, PETRI_TRANSITIONS=1250} [2021-03-24 11:47:39,840 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 845 predicate places. [2021-03-24 11:47:39,840 INFO L480 AbstractCegarLoop]: Abstraction has has 919 places, 1250 transitions, 22900 flow [2021-03-24 11:47:39,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:39,840 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:47:39,840 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:47:39,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-24 11:47:39,841 INFO L428 AbstractCegarLoop]: === Iteration 16 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:47:39,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:47:39,841 INFO L82 PathProgramCache]: Analyzing trace with hash 618686682, now seen corresponding path program 13 times [2021-03-24 11:47:39,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:47:39,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178977558] [2021-03-24 11:47:39,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:47:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:47:39,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:39,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:47:39,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:39,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:47:39,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:39,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:47:39,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:39,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:39,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:39,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:39,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:39,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:39,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:39,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:39,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:39,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:39,940 INFO L142 QuantifierPusher]: treesize reduction 20, result has 58.3 percent of original size [2021-03-24 11:47:39,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:39,954 INFO L142 QuantifierPusher]: treesize reduction 20, result has 54.5 percent of original size [2021-03-24 11:47:39,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:47:39,968 INFO L142 QuantifierPusher]: treesize reduction 28, result has 60.0 percent of original size [2021-03-24 11:47:39,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:47:39,993 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.6 percent of original size [2021-03-24 11:47:39,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:47:40,022 INFO L142 QuantifierPusher]: treesize reduction 46, result has 45.9 percent of original size [2021-03-24 11:47:40,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:47:40,049 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:47:40,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:47:40,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:40,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:47:40,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:40,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:47:40,085 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:47:40,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:47:40,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:40,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:47:40,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:47:40,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178977558] [2021-03-24 11:47:40,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:47:40,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:47:40,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218404708] [2021-03-24 11:47:40,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:47:40,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:47:40,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:47:40,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:47:40,110 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 205 [2021-03-24 11:47:40,110 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 919 places, 1250 transitions, 22900 flow. Second operand has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:40,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:47:40,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 205 [2021-03-24 11:47:40,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:47:42,107 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2021-03-24 11:47:50,843 INFO L129 PetriNetUnfolder]: 5003/10976 cut-off events. [2021-03-24 11:47:50,843 INFO L130 PetriNetUnfolder]: For 668226/668251 co-relation queries the response was YES. [2021-03-24 11:47:51,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101575 conditions, 10976 events. 5003/10976 cut-off events. For 668226/668251 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 87752 event pairs, 1407 based on Foata normal form. 25/10684 useless extension candidates. Maximal degree in co-relation 101185. Up to 5326 conditions per place. [2021-03-24 11:47:51,404 INFO L132 encePairwiseOnDemand]: 180/205 looper letters, 1162 selfloop transitions, 454 changer transitions 0/1678 dead transitions. [2021-03-24 11:47:51,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 958 places, 1678 transitions, 35389 flow [2021-03-24 11:47:51,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-03-24 11:47:51,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2021-03-24 11:47:51,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 3399 transitions. [2021-03-24 11:47:51,407 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4145121951219512 [2021-03-24 11:47:51,407 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 3399 transitions. [2021-03-24 11:47:51,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 3399 transitions. [2021-03-24 11:47:51,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:47:51,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 3399 transitions. [2021-03-24 11:47:51,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 84.975) internal successors, (3399), 40 states have internal predecessors, (3399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:51,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 205.0) internal successors, (8405), 41 states have internal predecessors, (8405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:51,415 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 205.0) internal successors, (8405), 41 states have internal predecessors, (8405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:51,415 INFO L185 Difference]: Start difference. First operand has 919 places, 1250 transitions, 22900 flow. Second operand 40 states and 3399 transitions. [2021-03-24 11:47:51,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 958 places, 1678 transitions, 35389 flow [2021-03-24 11:47:56,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 953 places, 1678 transitions, 33501 flow, removed 803 selfloop flow, removed 5 redundant places. [2021-03-24 11:47:56,363 INFO L241 Difference]: Finished difference. Result has 982 places, 1425 transitions, 28160 flow [2021-03-24 11:47:56,365 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=21670, PETRI_DIFFERENCE_MINUEND_PLACES=914, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=292, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=889, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=28160, PETRI_PLACES=982, PETRI_TRANSITIONS=1425} [2021-03-24 11:47:56,365 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 908 predicate places. [2021-03-24 11:47:56,365 INFO L480 AbstractCegarLoop]: Abstraction has has 982 places, 1425 transitions, 28160 flow [2021-03-24 11:47:56,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:56,365 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:47:56,365 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:47:56,365 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-24 11:47:56,366 INFO L428 AbstractCegarLoop]: === Iteration 17 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:47:56,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:47:56,366 INFO L82 PathProgramCache]: Analyzing trace with hash 133764566, now seen corresponding path program 14 times [2021-03-24 11:47:56,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:47:56,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433603848] [2021-03-24 11:47:56,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:47:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:47:56,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:56,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:47:56,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:56,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:47:56,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:56,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:47:56,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:56,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:56,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:56,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:56,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:56,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:56,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:56,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:56,478 INFO L142 QuantifierPusher]: treesize reduction 18, result has 60.9 percent of original size [2021-03-24 11:47:56,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:47:56,491 INFO L142 QuantifierPusher]: treesize reduction 18, result has 57.1 percent of original size [2021-03-24 11:47:56,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:47:56,505 INFO L142 QuantifierPusher]: treesize reduction 18, result has 57.1 percent of original size [2021-03-24 11:47:56,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:47:56,521 INFO L142 QuantifierPusher]: treesize reduction 23, result has 66.2 percent of original size [2021-03-24 11:47:56,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:47:56,551 INFO L142 QuantifierPusher]: treesize reduction 23, result has 67.6 percent of original size [2021-03-24 11:47:56,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-24 11:47:56,584 INFO L142 QuantifierPusher]: treesize reduction 28, result has 60.0 percent of original size [2021-03-24 11:47:56,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:47:56,613 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:47:56,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:47:56,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:56,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:47:56,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:56,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:47:56,653 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:47:56,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:47:56,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:47:56,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:47:56,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:47:56,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433603848] [2021-03-24 11:47:56,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:47:56,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:47:56,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618450934] [2021-03-24 11:47:56,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:47:56,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:47:56,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:47:56,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:47:56,680 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 205 [2021-03-24 11:47:56,680 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 982 places, 1425 transitions, 28160 flow. Second operand has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:47:56,680 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:47:56,680 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 205 [2021-03-24 11:47:56,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:47:59,095 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 58 [2021-03-24 11:47:59,552 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2021-03-24 11:48:00,616 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2021-03-24 11:48:11,016 INFO L129 PetriNetUnfolder]: 5162/11295 cut-off events. [2021-03-24 11:48:11,016 INFO L130 PetriNetUnfolder]: For 805576/805599 co-relation queries the response was YES. [2021-03-24 11:48:12,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110276 conditions, 11295 events. 5162/11295 cut-off events. For 805576/805599 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 90783 event pairs, 1498 based on Foata normal form. 25/10996 useless extension candidates. Maximal degree in co-relation 109857. Up to 4766 conditions per place. [2021-03-24 11:48:12,097 INFO L132 encePairwiseOnDemand]: 180/205 looper letters, 962 selfloop transitions, 652 changer transitions 0/1676 dead transitions. [2021-03-24 11:48:12,098 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1024 places, 1676 transitions, 37587 flow [2021-03-24 11:48:12,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-03-24 11:48:12,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2021-03-24 11:48:12,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 3642 transitions. [2021-03-24 11:48:12,101 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4131593874078276 [2021-03-24 11:48:12,101 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 3642 transitions. [2021-03-24 11:48:12,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 3642 transitions. [2021-03-24 11:48:12,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:48:12,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 3642 transitions. [2021-03-24 11:48:12,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 84.69767441860465) internal successors, (3642), 43 states have internal predecessors, (3642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:48:12,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 205.0) internal successors, (9020), 44 states have internal predecessors, (9020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:48:12,111 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 205.0) internal successors, (9020), 44 states have internal predecessors, (9020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:48:12,112 INFO L185 Difference]: Start difference. First operand has 982 places, 1425 transitions, 28160 flow. Second operand 43 states and 3642 transitions. [2021-03-24 11:48:12,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1024 places, 1676 transitions, 37587 flow [2021-03-24 11:48:18,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1019 places, 1676 transitions, 35426 flow, removed 990 selfloop flow, removed 5 redundant places. [2021-03-24 11:48:18,993 INFO L241 Difference]: Finished difference. Result has 1045 places, 1490 transitions, 31011 flow [2021-03-24 11:48:18,995 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=26602, PETRI_DIFFERENCE_MINUEND_PLACES=977, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=590, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=824, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=31011, PETRI_PLACES=1045, PETRI_TRANSITIONS=1490} [2021-03-24 11:48:18,996 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 971 predicate places. [2021-03-24 11:48:18,996 INFO L480 AbstractCegarLoop]: Abstraction has has 1045 places, 1490 transitions, 31011 flow [2021-03-24 11:48:18,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:48:18,996 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:48:18,996 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:48:18,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-24 11:48:18,996 INFO L428 AbstractCegarLoop]: === Iteration 18 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:48:18,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:48:18,997 INFO L82 PathProgramCache]: Analyzing trace with hash -2105683594, now seen corresponding path program 15 times [2021-03-24 11:48:18,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:48:18,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742068642] [2021-03-24 11:48:18,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:48:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:48:19,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:19,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:48:19,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:19,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:48:19,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:19,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:48:19,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:19,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:48:19,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:19,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:48:19,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:19,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:48:19,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:19,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:48:19,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:19,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:48:19,103 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.1 percent of original size [2021-03-24 11:48:19,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:48:19,119 INFO L142 QuantifierPusher]: treesize reduction 15, result has 70.0 percent of original size [2021-03-24 11:48:19,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:48:19,135 INFO L142 QuantifierPusher]: treesize reduction 45, result has 39.2 percent of original size [2021-03-24 11:48:19,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:48:19,151 INFO L142 QuantifierPusher]: treesize reduction 48, result has 49.5 percent of original size [2021-03-24 11:48:19,152 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.2 percent of original size 41 [2021-03-24 11:48:19,178 INFO L142 QuantifierPusher]: treesize reduction 48, result has 47.3 percent of original size [2021-03-24 11:48:19,179 INFO L147 QuantifierPusher]: treesize reduction 6, result has 86.0 percent of original size 37 [2021-03-24 11:48:19,204 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:48:19,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:48:19,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:19,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:48:19,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:19,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:48:19,244 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:48:19,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:48:19,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:19,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:48:19,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:48:19,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742068642] [2021-03-24 11:48:19,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:48:19,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:48:19,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442544667] [2021-03-24 11:48:19,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:48:19,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:48:19,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:48:19,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:48:19,270 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 205 [2021-03-24 11:48:19,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1045 places, 1490 transitions, 31011 flow. Second operand has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:48:19,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:48:19,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 205 [2021-03-24 11:48:19,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:48:22,793 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2021-03-24 11:48:24,558 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2021-03-24 11:48:32,697 INFO L129 PetriNetUnfolder]: 5651/12423 cut-off events. [2021-03-24 11:48:32,697 INFO L130 PetriNetUnfolder]: For 1057249/1057272 co-relation queries the response was YES. [2021-03-24 11:48:33,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127846 conditions, 12423 events. 5651/12423 cut-off events. For 1057249/1057272 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 101751 event pairs, 1727 based on Foata normal form. 25/12073 useless extension candidates. Maximal degree in co-relation 127401. Up to 6346 conditions per place. [2021-03-24 11:48:33,949 INFO L132 encePairwiseOnDemand]: 180/205 looper letters, 1274 selfloop transitions, 525 changer transitions 0/1861 dead transitions. [2021-03-24 11:48:33,949 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1075 places, 1861 transitions, 43259 flow [2021-03-24 11:48:33,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-24 11:48:33,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-03-24 11:48:33,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2672 transitions. [2021-03-24 11:48:33,953 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42045633359559403 [2021-03-24 11:48:33,953 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 2672 transitions. [2021-03-24 11:48:33,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 2672 transitions. [2021-03-24 11:48:33,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:48:33,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 2672 transitions. [2021-03-24 11:48:33,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 86.19354838709677) internal successors, (2672), 31 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:48:33,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 205.0) internal successors, (6560), 32 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:48:33,960 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 205.0) internal successors, (6560), 32 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:48:33,960 INFO L185 Difference]: Start difference. First operand has 1045 places, 1490 transitions, 31011 flow. Second operand 31 states and 2672 transitions. [2021-03-24 11:48:33,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1075 places, 1861 transitions, 43259 flow [2021-03-24 11:48:43,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1066 places, 1861 transitions, 41208 flow, removed 733 selfloop flow, removed 9 redundant places. [2021-03-24 11:48:44,040 INFO L241 Difference]: Finished difference. Result has 1086 places, 1607 transitions, 34372 flow [2021-03-24 11:48:44,042 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=29150, PETRI_DIFFERENCE_MINUEND_PLACES=1036, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=415, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1003, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=34372, PETRI_PLACES=1086, PETRI_TRANSITIONS=1607} [2021-03-24 11:48:44,043 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 1012 predicate places. [2021-03-24 11:48:44,043 INFO L480 AbstractCegarLoop]: Abstraction has has 1086 places, 1607 transitions, 34372 flow [2021-03-24 11:48:44,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:48:44,043 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:48:44,043 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:48:44,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-24 11:48:44,043 INFO L428 AbstractCegarLoop]: === Iteration 19 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:48:44,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:48:44,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1527852590, now seen corresponding path program 16 times [2021-03-24 11:48:44,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:48:44,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737650038] [2021-03-24 11:48:44,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:48:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:48:44,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:44,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:48:44,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:44,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:48:44,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:44,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:48:44,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:44,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:48:44,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:44,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:48:44,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:44,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:48:44,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:44,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:48:44,196 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.1 percent of original size [2021-03-24 11:48:44,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:48:44,211 INFO L142 QuantifierPusher]: treesize reduction 15, result has 70.0 percent of original size [2021-03-24 11:48:44,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:48:44,228 INFO L142 QuantifierPusher]: treesize reduction 15, result has 70.0 percent of original size [2021-03-24 11:48:44,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:48:44,245 INFO L142 QuantifierPusher]: treesize reduction 27, result has 62.0 percent of original size [2021-03-24 11:48:44,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:48:44,271 INFO L142 QuantifierPusher]: treesize reduction 27, result has 59.7 percent of original size [2021-03-24 11:48:44,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:48:44,299 INFO L142 QuantifierPusher]: treesize reduction 47, result has 46.6 percent of original size [2021-03-24 11:48:44,299 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size 34 [2021-03-24 11:48:44,329 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:48:44,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:48:44,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:44,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:48:44,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:44,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:48:44,369 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:48:44,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:48:44,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:48:44,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:48:44,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:48:44,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737650038] [2021-03-24 11:48:44,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:48:44,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:48:44,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794563550] [2021-03-24 11:48:44,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:48:44,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:48:44,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:48:44,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:48:44,395 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 205 [2021-03-24 11:48:44,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1086 places, 1607 transitions, 34372 flow. Second operand has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:48:44,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:48:44,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 205 [2021-03-24 11:48:44,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:48:49,985 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2021-03-24 11:49:05,078 INFO L129 PetriNetUnfolder]: 6229/13643 cut-off events. [2021-03-24 11:49:05,078 INFO L130 PetriNetUnfolder]: For 1325115/1325138 co-relation queries the response was YES. [2021-03-24 11:49:05,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146486 conditions, 13643 events. 6229/13643 cut-off events. For 1325115/1325138 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 113407 event pairs, 1813 based on Foata normal form. 25/13237 useless extension candidates. Maximal degree in co-relation 146021. Up to 7307 conditions per place. [2021-03-24 11:49:05,673 INFO L132 encePairwiseOnDemand]: 180/205 looper letters, 1311 selfloop transitions, 713 changer transitions 0/2086 dead transitions. [2021-03-24 11:49:05,673 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1132 places, 2086 transitions, 49241 flow [2021-03-24 11:49:05,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-03-24 11:49:05,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-03-24 11:49:05,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 3961 transitions. [2021-03-24 11:49:05,678 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41110534509600416 [2021-03-24 11:49:05,678 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 3961 transitions. [2021-03-24 11:49:05,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 3961 transitions. [2021-03-24 11:49:05,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:49:05,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 3961 transitions. [2021-03-24 11:49:05,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 84.27659574468085) internal successors, (3961), 47 states have internal predecessors, (3961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:49:05,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 205.0) internal successors, (9840), 48 states have internal predecessors, (9840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:49:05,687 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 205.0) internal successors, (9840), 48 states have internal predecessors, (9840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:49:05,687 INFO L185 Difference]: Start difference. First operand has 1086 places, 1607 transitions, 34372 flow. Second operand 47 states and 3961 transitions. [2021-03-24 11:49:05,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1132 places, 2086 transitions, 49241 flow [2021-03-24 11:49:16,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1124 places, 2086 transitions, 47460 flow, removed 686 selfloop flow, removed 8 redundant places. [2021-03-24 11:49:16,395 INFO L241 Difference]: Finished difference. Result has 1162 places, 1844 transitions, 41718 flow [2021-03-24 11:49:16,396 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=32792, PETRI_DIFFERENCE_MINUEND_PLACES=1078, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1607, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=493, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1034, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=41718, PETRI_PLACES=1162, PETRI_TRANSITIONS=1844} [2021-03-24 11:49:16,396 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 1088 predicate places. [2021-03-24 11:49:16,396 INFO L480 AbstractCegarLoop]: Abstraction has has 1162 places, 1844 transitions, 41718 flow [2021-03-24 11:49:16,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:49:16,397 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:49:16,397 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:49:16,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-24 11:49:16,397 INFO L428 AbstractCegarLoop]: === Iteration 20 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:49:16,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:49:16,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1324654638, now seen corresponding path program 17 times [2021-03-24 11:49:16,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:49:16,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882254299] [2021-03-24 11:49:16,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:49:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:49:16,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:49:16,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:49:16,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:49:16,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:49:16,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:49:16,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:49:16,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:49:16,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:49:16,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:49:16,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:49:16,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:49:16,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:49:16,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:49:16,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:49:16,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:49:16,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:49:16,492 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.2 percent of original size [2021-03-24 11:49:16,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:49:16,512 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.7 percent of original size [2021-03-24 11:49:16,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:49:16,534 INFO L142 QuantifierPusher]: treesize reduction 24, result has 66.2 percent of original size [2021-03-24 11:49:16,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:49:16,559 INFO L142 QuantifierPusher]: treesize reduction 43, result has 51.1 percent of original size [2021-03-24 11:49:16,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:49:16,585 INFO L142 QuantifierPusher]: treesize reduction 43, result has 48.8 percent of original size [2021-03-24 11:49:16,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:49:16,610 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:49:16,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:49:16,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:49:16,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:49:16,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:49:16,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:49:16,649 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:49:16,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:49:16,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:49:16,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:49:16,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:49:16,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882254299] [2021-03-24 11:49:16,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:49:16,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:49:16,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589246821] [2021-03-24 11:49:16,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:49:16,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:49:16,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:49:16,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:49:16,675 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 205 [2021-03-24 11:49:16,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1162 places, 1844 transitions, 41718 flow. Second operand has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:49:16,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:49:16,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 205 [2021-03-24 11:49:16,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:49:19,526 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2021-03-24 11:49:20,379 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2021-03-24 11:49:22,156 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2021-03-24 11:49:22,880 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2021-03-24 11:49:23,547 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2021-03-24 11:49:25,564 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2021-03-24 11:49:43,461 INFO L129 PetriNetUnfolder]: 6491/14138 cut-off events. [2021-03-24 11:49:43,462 INFO L130 PetriNetUnfolder]: For 1387227/1387263 co-relation queries the response was YES. [2021-03-24 11:49:45,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156723 conditions, 14138 events. 6491/14138 cut-off events. For 1387227/1387263 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 117975 event pairs, 1695 based on Foata normal form. 31/13739 useless extension candidates. Maximal degree in co-relation 156220. Up to 6573 conditions per place. [2021-03-24 11:49:45,616 INFO L132 encePairwiseOnDemand]: 180/205 looper letters, 1444 selfloop transitions, 759 changer transitions 0/2265 dead transitions. [2021-03-24 11:49:45,616 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1210 places, 2265 transitions, 57531 flow [2021-03-24 11:49:45,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-24 11:49:45,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-03-24 11:49:45,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 4134 transitions. [2021-03-24 11:49:45,625 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4115480338476854 [2021-03-24 11:49:45,625 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 4134 transitions. [2021-03-24 11:49:45,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 4134 transitions. [2021-03-24 11:49:45,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:49:45,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 4134 transitions. [2021-03-24 11:49:45,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 84.36734693877551) internal successors, (4134), 49 states have internal predecessors, (4134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:49:45,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 205.0) internal successors, (10250), 50 states have internal predecessors, (10250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:49:45,657 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 205.0) internal successors, (10250), 50 states have internal predecessors, (10250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:49:45,657 INFO L185 Difference]: Start difference. First operand has 1162 places, 1844 transitions, 41718 flow. Second operand 49 states and 4134 transitions. [2021-03-24 11:49:45,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1210 places, 2265 transitions, 57531 flow [2021-03-24 11:50:03,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1203 places, 2265 transitions, 54092 flow, removed 1427 selfloop flow, removed 7 redundant places. [2021-03-24 11:50:03,165 INFO L241 Difference]: Finished difference. Result has 1227 places, 1972 transitions, 46591 flow [2021-03-24 11:50:03,168 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=39425, PETRI_DIFFERENCE_MINUEND_PLACES=1155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1844, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=638, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=46591, PETRI_PLACES=1227, PETRI_TRANSITIONS=1972} [2021-03-24 11:50:03,168 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 1153 predicate places. [2021-03-24 11:50:03,168 INFO L480 AbstractCegarLoop]: Abstraction has has 1227 places, 1972 transitions, 46591 flow [2021-03-24 11:50:03,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:50:03,169 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:50:03,169 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:50:03,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-24 11:50:03,169 INFO L428 AbstractCegarLoop]: === Iteration 21 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:50:03,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:50:03,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1277809118, now seen corresponding path program 18 times [2021-03-24 11:50:03,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:50:03,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751246675] [2021-03-24 11:50:03,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:50:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:50:03,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:03,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:50:03,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:03,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:50:03,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:03,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:50:03,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:03,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:50:03,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:03,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:50:03,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:03,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:50:03,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:03,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:50:03,295 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 11:50:03,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:50:03,310 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 11:50:03,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:50:03,325 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:50:03,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:50:03,343 INFO L142 QuantifierPusher]: treesize reduction 25, result has 53.7 percent of original size [2021-03-24 11:50:03,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:50:03,360 INFO L142 QuantifierPusher]: treesize reduction 35, result has 52.1 percent of original size [2021-03-24 11:50:03,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:50:03,386 INFO L142 QuantifierPusher]: treesize reduction 35, result has 49.3 percent of original size [2021-03-24 11:50:03,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:50:03,411 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:50:03,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:50:03,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:03,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:50:03,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:03,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:50:03,452 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:50:03,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:50:03,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:03,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:50:03,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:50:03,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751246675] [2021-03-24 11:50:03,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:50:03,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:50:03,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76510354] [2021-03-24 11:50:03,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:50:03,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:50:03,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:50:03,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:50:03,480 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 205 [2021-03-24 11:50:03,481 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1227 places, 1972 transitions, 46591 flow. Second operand has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:50:03,481 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:50:03,481 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 205 [2021-03-24 11:50:03,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:50:11,177 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2021-03-24 11:50:31,929 INFO L129 PetriNetUnfolder]: 7648/16626 cut-off events. [2021-03-24 11:50:31,929 INFO L130 PetriNetUnfolder]: For 1887488/1887511 co-relation queries the response was YES. [2021-03-24 11:50:32,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195072 conditions, 16626 events. 7648/16626 cut-off events. For 1887488/1887511 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 141597 event pairs, 2099 based on Foata normal form. 25/16141 useless extension candidates. Maximal degree in co-relation 194545. Up to 8417 conditions per place. [2021-03-24 11:50:33,052 INFO L132 encePairwiseOnDemand]: 180/205 looper letters, 1742 selfloop transitions, 815 changer transitions 0/2619 dead transitions. [2021-03-24 11:50:33,052 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1257 places, 2619 transitions, 69339 flow [2021-03-24 11:50:33,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-24 11:50:33,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-03-24 11:50:33,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2666 transitions. [2021-03-24 11:50:33,065 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4195121951219512 [2021-03-24 11:50:33,065 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 2666 transitions. [2021-03-24 11:50:33,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 2666 transitions. [2021-03-24 11:50:33,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:50:33,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 2666 transitions. [2021-03-24 11:50:33,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 86.0) internal successors, (2666), 31 states have internal predecessors, (2666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:50:33,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 205.0) internal successors, (6560), 32 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:50:33,071 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 205.0) internal successors, (6560), 32 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:50:33,071 INFO L185 Difference]: Start difference. First operand has 1227 places, 1972 transitions, 46591 flow. Second operand 31 states and 2666 transitions. [2021-03-24 11:50:33,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1257 places, 2619 transitions, 69339 flow [2021-03-24 11:50:51,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1248 places, 2619 transitions, 65774 flow, removed 1439 selfloop flow, removed 9 redundant places. [2021-03-24 11:50:51,668 INFO L241 Difference]: Finished difference. Result has 1271 places, 2308 transitions, 57204 flow [2021-03-24 11:50:51,671 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=43655, PETRI_DIFFERENCE_MINUEND_PLACES=1218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1972, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=484, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=57204, PETRI_PLACES=1271, PETRI_TRANSITIONS=2308} [2021-03-24 11:50:51,671 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 1197 predicate places. [2021-03-24 11:50:51,671 INFO L480 AbstractCegarLoop]: Abstraction has has 1271 places, 2308 transitions, 57204 flow [2021-03-24 11:50:51,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:50:51,671 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:50:51,671 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:50:51,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-24 11:50:51,671 INFO L428 AbstractCegarLoop]: === Iteration 22 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:50:51,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:50:51,672 INFO L82 PathProgramCache]: Analyzing trace with hash -521923174, now seen corresponding path program 19 times [2021-03-24 11:50:51,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:50:51,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66155241] [2021-03-24 11:50:51,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:50:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:50:51,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:51,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:50:51,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:51,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:50:51,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:51,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:50:51,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:51,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:50:51,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:51,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:50:51,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:51,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:50:51,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:51,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:50:51,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:51,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:50:51,773 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.1 percent of original size [2021-03-24 11:50:51,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:50:51,787 INFO L142 QuantifierPusher]: treesize reduction 15, result has 70.0 percent of original size [2021-03-24 11:50:51,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:50:51,802 INFO L142 QuantifierPusher]: treesize reduction 24, result has 66.2 percent of original size [2021-03-24 11:50:51,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:50:51,828 INFO L142 QuantifierPusher]: treesize reduction 43, result has 51.1 percent of original size [2021-03-24 11:50:51,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:50:51,853 INFO L142 QuantifierPusher]: treesize reduction 43, result has 48.8 percent of original size [2021-03-24 11:50:51,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:50:51,878 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:50:51,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:50:51,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:51,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:50:51,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:51,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:50:51,918 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:50:51,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:50:51,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:50:51,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:50:51,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:50:51,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66155241] [2021-03-24 11:50:51,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:50:51,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:50:51,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008061640] [2021-03-24 11:50:51,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:50:51,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:50:51,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:50:51,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:50:51,944 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 205 [2021-03-24 11:50:51,945 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1271 places, 2308 transitions, 57204 flow. Second operand has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:50:51,945 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:50:51,945 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 205 [2021-03-24 11:50:51,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:50:59,976 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2021-03-24 11:51:25,901 INFO L129 PetriNetUnfolder]: 9141/19682 cut-off events. [2021-03-24 11:51:25,901 INFO L130 PetriNetUnfolder]: For 2496913/2496937 co-relation queries the response was YES. [2021-03-24 11:51:27,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 245615 conditions, 19682 events. 9141/19682 cut-off events. For 2496913/2496937 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 169918 event pairs, 2441 based on Foata normal form. 25/19108 useless extension candidates. Maximal degree in co-relation 245065. Up to 10041 conditions per place. [2021-03-24 11:51:27,266 INFO L132 encePairwiseOnDemand]: 180/205 looper letters, 1930 selfloop transitions, 1232 changer transitions 0/3224 dead transitions. [2021-03-24 11:51:27,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1319 places, 3224 transitions, 91404 flow [2021-03-24 11:51:27,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-24 11:51:27,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-03-24 11:51:27,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 4139 transitions. [2021-03-24 11:51:27,269 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41204579392732704 [2021-03-24 11:51:27,270 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 4139 transitions. [2021-03-24 11:51:27,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 4139 transitions. [2021-03-24 11:51:27,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:51:27,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 4139 transitions. [2021-03-24 11:51:27,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 84.46938775510205) internal successors, (4139), 49 states have internal predecessors, (4139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:51:27,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 205.0) internal successors, (10250), 50 states have internal predecessors, (10250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:51:27,278 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 205.0) internal successors, (10250), 50 states have internal predecessors, (10250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:51:27,278 INFO L185 Difference]: Start difference. First operand has 1271 places, 2308 transitions, 57204 flow. Second operand 49 states and 4139 transitions. [2021-03-24 11:51:27,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1319 places, 3224 transitions, 91404 flow [2021-03-24 11:51:49,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1313 places, 3224 transitions, 88360 flow, removed 1403 selfloop flow, removed 6 redundant places. [2021-03-24 11:51:49,756 INFO L241 Difference]: Finished difference. Result has 1353 places, 2975 transitions, 81866 flow [2021-03-24 11:51:49,758 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=55420, PETRI_DIFFERENCE_MINUEND_PLACES=1265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=589, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=81866, PETRI_PLACES=1353, PETRI_TRANSITIONS=2975} [2021-03-24 11:51:49,758 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 1279 predicate places. [2021-03-24 11:51:49,758 INFO L480 AbstractCegarLoop]: Abstraction has has 1353 places, 2975 transitions, 81866 flow [2021-03-24 11:51:49,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:51:49,758 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:51:49,758 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:51:49,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-24 11:51:49,759 INFO L428 AbstractCegarLoop]: === Iteration 23 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:51:49,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:51:49,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1902243570, now seen corresponding path program 20 times [2021-03-24 11:51:49,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:51:49,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303286007] [2021-03-24 11:51:49,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:51:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:51:49,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:51:49,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:51:49,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:51:49,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:51:49,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:51:49,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:51:49,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:51:49,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:51:49,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:51:49,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:51:49,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:51:49,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:51:49,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:51:49,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:51:49,858 INFO L142 QuantifierPusher]: treesize reduction 17, result has 65.3 percent of original size [2021-03-24 11:51:49,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:51:49,872 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:51:49,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:51:49,888 INFO L142 QuantifierPusher]: treesize reduction 33, result has 53.5 percent of original size [2021-03-24 11:51:49,889 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:51:49,912 INFO L142 QuantifierPusher]: treesize reduction 33, result has 53.5 percent of original size [2021-03-24 11:51:49,913 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:51:49,937 INFO L142 QuantifierPusher]: treesize reduction 48, result has 46.7 percent of original size [2021-03-24 11:51:49,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:51:49,967 INFO L142 QuantifierPusher]: treesize reduction 48, result has 44.2 percent of original size [2021-03-24 11:51:49,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:51:49,992 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:51:49,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:51:50,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:51:50,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:51:50,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:51:50,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:51:50,031 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:51:50,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:51:50,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:51:50,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:51:50,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:51:50,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303286007] [2021-03-24 11:51:50,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:51:50,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:51:50,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386365721] [2021-03-24 11:51:50,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:51:50,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:51:50,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:51:50,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:51:50,057 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 205 [2021-03-24 11:51:50,057 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1353 places, 2975 transitions, 81866 flow. Second operand has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:51:50,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:51:50,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 205 [2021-03-24 11:51:50,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:51:53,595 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 11:52:16,886 INFO L129 PetriNetUnfolder]: 9462/20408 cut-off events. [2021-03-24 11:52:16,886 INFO L130 PetriNetUnfolder]: For 2611032/2611055 co-relation queries the response was YES. [2021-03-24 11:52:17,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 257491 conditions, 20408 events. 9462/20408 cut-off events. For 2611032/2611055 co-relation queries the response was YES. Maximal size of possible extension queue 493. Compared 178554 event pairs, 2655 based on Foata normal form. 25/19811 useless extension candidates. Maximal degree in co-relation 256901. Up to 11591 conditions per place. [2021-03-24 11:52:17,960 INFO L132 encePairwiseOnDemand]: 180/205 looper letters, 2439 selfloop transitions, 764 changer transitions 0/3265 dead transitions. [2021-03-24 11:52:17,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1383 places, 3265 transitions, 96196 flow [2021-03-24 11:52:17,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-24 11:52:17,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-03-24 11:52:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2660 transitions. [2021-03-24 11:52:17,963 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41856805664830843 [2021-03-24 11:52:17,963 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 2660 transitions. [2021-03-24 11:52:17,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 2660 transitions. [2021-03-24 11:52:17,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:52:17,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 2660 transitions. [2021-03-24 11:52:17,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 85.80645161290323) internal successors, (2660), 31 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:52:17,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 205.0) internal successors, (6560), 32 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:52:17,968 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 205.0) internal successors, (6560), 32 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:52:17,968 INFO L185 Difference]: Start difference. First operand has 1353 places, 2975 transitions, 81866 flow. Second operand 31 states and 2660 transitions. [2021-03-24 11:52:17,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1383 places, 3265 transitions, 96196 flow [2021-03-24 11:52:39,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1377 places, 3265 transitions, 93206 flow, removed 1330 selfloop flow, removed 6 redundant places. [2021-03-24 11:52:40,025 INFO L241 Difference]: Finished difference. Result has 1399 places, 3084 transitions, 85156 flow [2021-03-24 11:52:40,027 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=78919, PETRI_DIFFERENCE_MINUEND_PLACES=1347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2975, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=662, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=85156, PETRI_PLACES=1399, PETRI_TRANSITIONS=3084} [2021-03-24 11:52:40,027 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 1325 predicate places. [2021-03-24 11:52:40,028 INFO L480 AbstractCegarLoop]: Abstraction has has 1399 places, 3084 transitions, 85156 flow [2021-03-24 11:52:40,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 79.83333333333333) internal successors, (1437), 18 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:52:40,028 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:52:40,028 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:52:40,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-24 11:52:40,028 INFO L428 AbstractCegarLoop]: === Iteration 24 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:52:40,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:52:40,028 INFO L82 PathProgramCache]: Analyzing trace with hash 2066912850, now seen corresponding path program 21 times [2021-03-24 11:52:40,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:52:40,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234279370] [2021-03-24 11:52:40,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:52:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:52:40,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:52:40,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:52:40,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:52:40,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:52:40,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:52:40,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:52:40,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:52:40,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:52:40,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:52:40,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:52:40,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:52:40,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:52:40,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:52:40,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:52:40,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:52:40,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:52:40,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:52:40,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:52:40,135 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:52:40,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:52:40,150 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.6 percent of original size [2021-03-24 11:52:40,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:52:40,166 INFO L142 QuantifierPusher]: treesize reduction 47, result has 51.5 percent of original size [2021-03-24 11:52:40,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:52:40,194 INFO L142 QuantifierPusher]: treesize reduction 47, result has 51.5 percent of original size [2021-03-24 11:52:40,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:52:40,224 INFO L142 QuantifierPusher]: treesize reduction 70, result has 46.6 percent of original size [2021-03-24 11:52:40,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 11:52:40,268 INFO L142 QuantifierPusher]: treesize reduction 53, result has 68.8 percent of original size [2021-03-24 11:52:40,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-24 11:52:40,306 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:52:40,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:52:40,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:52:40,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:52:40,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:52:40,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:52:40,350 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:52:40,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:52:40,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:52:40,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:52:40,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:52:40,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234279370] [2021-03-24 11:52:40,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:52:40,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-03-24 11:52:40,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894753685] [2021-03-24 11:52:40,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:52:40,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:52:40,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:52:40,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:52:40,377 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 205 [2021-03-24 11:52:40,378 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1399 places, 3084 transitions, 85156 flow. Second operand has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:52:40,378 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:52:40,378 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 205 [2021-03-24 11:52:40,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:52:43,570 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2021-03-24 11:52:44,695 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-24 11:52:44,828 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2021-03-24 11:52:45,509 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2021-03-24 11:52:45,656 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 72 [2021-03-24 11:52:46,568 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2021-03-24 11:52:46,704 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2021-03-24 11:52:47,428 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2021-03-24 11:52:48,508 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2021-03-24 11:53:21,400 INFO L129 PetriNetUnfolder]: 14323/29151 cut-off events. [2021-03-24 11:53:21,400 INFO L130 PetriNetUnfolder]: For 3893794/3893814 co-relation queries the response was YES. [2021-03-24 11:53:25,789 INFO L84 FinitePrefix]: Finished finitePrefix Result has 388144 conditions, 29151 events. 14323/29151 cut-off events. For 3893794/3893814 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 251527 event pairs, 3842 based on Foata normal form. 17/28605 useless extension candidates. Maximal degree in co-relation 387532. Up to 15544 conditions per place. [2021-03-24 11:53:25,969 INFO L132 encePairwiseOnDemand]: 178/205 looper letters, 3121 selfloop transitions, 1395 changer transitions 0/4539 dead transitions. [2021-03-24 11:53:25,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1443 places, 4539 transitions, 140653 flow [2021-03-24 11:53:25,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-03-24 11:53:25,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-03-24 11:53:25,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 3416 transitions. [2021-03-24 11:53:25,972 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37029810298102983 [2021-03-24 11:53:25,972 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 3416 transitions. [2021-03-24 11:53:25,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 3416 transitions. [2021-03-24 11:53:25,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:53:25,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 3416 transitions. [2021-03-24 11:53:25,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 75.91111111111111) internal successors, (3416), 45 states have internal predecessors, (3416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:53:25,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 205.0) internal successors, (9430), 46 states have internal predecessors, (9430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:53:25,979 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 205.0) internal successors, (9430), 46 states have internal predecessors, (9430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:53:25,979 INFO L185 Difference]: Start difference. First operand has 1399 places, 3084 transitions, 85156 flow. Second operand 45 states and 3416 transitions. [2021-03-24 11:53:25,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1443 places, 4539 transitions, 140653 flow [2021-03-24 11:54:08,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1438 places, 4539 transitions, 137245 flow, removed 1344 selfloop flow, removed 5 redundant places. [2021-03-24 11:54:08,497 INFO L241 Difference]: Finished difference. Result has 1476 places, 3837 transitions, 117688 flow [2021-03-24 11:54:08,500 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=82355, PETRI_DIFFERENCE_MINUEND_PLACES=1394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3084, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=659, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1987, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=117688, PETRI_PLACES=1476, PETRI_TRANSITIONS=3837} [2021-03-24 11:54:08,500 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 1402 predicate places. [2021-03-24 11:54:08,500 INFO L480 AbstractCegarLoop]: Abstraction has has 1476 places, 3837 transitions, 117688 flow [2021-03-24 11:54:08,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:54:08,500 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:54:08,500 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:54:08,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-24 11:54:08,501 INFO L428 AbstractCegarLoop]: === Iteration 25 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:54:08,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:54:08,501 INFO L82 PathProgramCache]: Analyzing trace with hash -46744436, now seen corresponding path program 22 times [2021-03-24 11:54:08,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:54:08,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248828065] [2021-03-24 11:54:08,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:54:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:54:08,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:54:08,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:54:08,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:54:08,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:54:08,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:54:08,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:54:08,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:54:08,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:54:08,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:54:08,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:54:08,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:54:08,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:54:08,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:54:08,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:54:08,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:54:08,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:54:08,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:54:08,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:54:08,608 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:54:08,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:54:08,624 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.6 percent of original size [2021-03-24 11:54:08,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:54:08,641 INFO L142 QuantifierPusher]: treesize reduction 47, result has 51.5 percent of original size [2021-03-24 11:54:08,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:54:08,671 INFO L142 QuantifierPusher]: treesize reduction 47, result has 51.5 percent of original size [2021-03-24 11:54:08,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:54:08,701 INFO L142 QuantifierPusher]: treesize reduction 70, result has 46.6 percent of original size [2021-03-24 11:54:08,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 11:54:08,745 INFO L142 QuantifierPusher]: treesize reduction 53, result has 68.8 percent of original size [2021-03-24 11:54:08,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-24 11:54:08,784 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:54:08,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:54:08,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:54:08,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:54:08,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:54:08,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:54:08,829 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:54:08,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:54:08,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:54:08,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:54:08,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:54:08,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248828065] [2021-03-24 11:54:08,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:54:08,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-03-24 11:54:08,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420323417] [2021-03-24 11:54:08,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:54:08,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:54:08,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:54:08,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:54:08,856 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 205 [2021-03-24 11:54:08,857 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1476 places, 3837 transitions, 117688 flow. Second operand has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:54:08,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:54:08,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 205 [2021-03-24 11:54:08,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:54:16,146 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2021-03-24 11:54:16,286 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2021-03-24 11:54:17,396 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2021-03-24 11:54:18,426 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2021-03-24 11:55:16,572 INFO L129 PetriNetUnfolder]: 17952/36356 cut-off events. [2021-03-24 11:55:16,573 INFO L130 PetriNetUnfolder]: For 5427701/5427731 co-relation queries the response was YES. [2021-03-24 11:55:24,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 517867 conditions, 36356 events. 17952/36356 cut-off events. For 5427701/5427731 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 320068 event pairs, 3876 based on Foata normal form. 18/35685 useless extension candidates. Maximal degree in co-relation 517218. Up to 16840 conditions per place. [2021-03-24 11:55:24,377 INFO L132 encePairwiseOnDemand]: 178/205 looper letters, 3322 selfloop transitions, 2164 changer transitions 0/5509 dead transitions. [2021-03-24 11:55:24,377 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1520 places, 5509 transitions, 185671 flow [2021-03-24 11:55:24,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-03-24 11:55:24,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-03-24 11:55:24,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 3413 transitions. [2021-03-24 11:55:24,381 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3699728997289973 [2021-03-24 11:55:24,381 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 3413 transitions. [2021-03-24 11:55:24,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 3413 transitions. [2021-03-24 11:55:24,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:55:24,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 3413 transitions. [2021-03-24 11:55:24,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 75.84444444444445) internal successors, (3413), 45 states have internal predecessors, (3413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:55:24,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 205.0) internal successors, (9430), 46 states have internal predecessors, (9430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:55:24,387 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 205.0) internal successors, (9430), 46 states have internal predecessors, (9430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:55:24,387 INFO L185 Difference]: Start difference. First operand has 1476 places, 3837 transitions, 117688 flow. Second operand 45 states and 3413 transitions. [2021-03-24 11:55:24,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1520 places, 5509 transitions, 185671 flow [2021-03-24 11:56:38,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1515 places, 5509 transitions, 181090 flow, removed 2173 selfloop flow, removed 5 redundant places. [2021-03-24 11:56:38,236 INFO L241 Difference]: Finished difference. Result has 1554 places, 4785 transitions, 162225 flow [2021-03-24 11:56:38,239 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=115325, PETRI_DIFFERENCE_MINUEND_PLACES=1471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3837, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1986, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=162225, PETRI_PLACES=1554, PETRI_TRANSITIONS=4785} [2021-03-24 11:56:38,239 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 1480 predicate places. [2021-03-24 11:56:38,239 INFO L480 AbstractCegarLoop]: Abstraction has has 1554 places, 4785 transitions, 162225 flow [2021-03-24 11:56:38,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:56:38,240 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:56:38,240 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:56:38,240 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-24 11:56:38,240 INFO L428 AbstractCegarLoop]: === Iteration 26 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:56:38,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:56:38,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1945943832, now seen corresponding path program 23 times [2021-03-24 11:56:38,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:56:38,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680928023] [2021-03-24 11:56:38,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:56:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:56:38,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:56:38,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:56:38,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:56:38,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:56:38,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:56:38,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:56:38,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:56:38,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:56:38,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:56:38,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:56:38,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:56:38,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:56:38,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:56:38,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:56:38,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:56:38,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:56:38,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:56:38,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:56:38,347 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.6 percent of original size [2021-03-24 11:56:38,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:56:38,361 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.6 percent of original size [2021-03-24 11:56:38,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:56:38,377 INFO L142 QuantifierPusher]: treesize reduction 32, result has 62.4 percent of original size [2021-03-24 11:56:38,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:56:38,406 INFO L142 QuantifierPusher]: treesize reduction 58, result has 52.5 percent of original size [2021-03-24 11:56:38,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:56:38,446 INFO L142 QuantifierPusher]: treesize reduction 58, result has 50.8 percent of original size [2021-03-24 11:56:38,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:56:38,487 INFO L142 QuantifierPusher]: treesize reduction 51, result has 68.1 percent of original size [2021-03-24 11:56:38,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-03-24 11:56:38,524 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:56:38,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:56:38,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:56:38,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:56:38,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:56:38,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:56:38,569 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-24 11:56:38,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:56:38,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:56:38,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:56:38,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:56:38,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680928023] [2021-03-24 11:56:38,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:56:38,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-03-24 11:56:38,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084518093] [2021-03-24 11:56:38,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:56:38,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:56:38,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:56:38,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:56:38,596 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 205 [2021-03-24 11:56:38,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1554 places, 4785 transitions, 162225 flow. Second operand has 20 states, 20 states have (on average 69.8) internal successors, (1396), 20 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:56:38,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:56:38,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 205 [2021-03-24 11:56:38,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:56:42,938 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-03-24 11:56:43,990 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2021-03-24 11:56:45,162 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 73 [2021-03-24 11:56:46,378 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 72 [2021-03-24 11:56:46,592 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 71 [2021-03-24 11:56:47,755 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 76 [2021-03-24 11:56:48,008 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-03-24 11:56:48,138 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-03-24 11:56:49,439 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 74 [2021-03-24 11:56:49,737 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2021-03-24 11:58:18,854 INFO L129 PetriNetUnfolder]: 20856/42274 cut-off events. [2021-03-24 11:58:18,854 INFO L130 PetriNetUnfolder]: For 7463921/7463966 co-relation queries the response was YES. [2021-03-24 11:58:27,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 641799 conditions, 42274 events. 20856/42274 cut-off events. For 7463921/7463966 co-relation queries the response was YES. Maximal size of possible extension queue 718. Compared 378400 event pairs, 4697 based on Foata normal form. 25/41477 useless extension candidates. Maximal degree in co-relation 641111. Up to 20595 conditions per place. [2021-03-24 11:58:27,386 INFO L132 encePairwiseOnDemand]: 178/205 looper letters, 3393 selfloop transitions, 2566 changer transitions 0/5982 dead transitions. [2021-03-24 11:58:27,386 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1595 places, 5982 transitions, 216583 flow [2021-03-24 11:58:27,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-03-24 11:58:27,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-03-24 11:58:27,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 3205 transitions. [2021-03-24 11:58:27,388 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3722415795586527 [2021-03-24 11:58:27,388 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 3205 transitions. [2021-03-24 11:58:27,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 3205 transitions. [2021-03-24 11:58:27,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:58:27,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 3205 transitions. [2021-03-24 11:58:27,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 76.30952380952381) internal successors, (3205), 42 states have internal predecessors, (3205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:58:27,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 205.0) internal successors, (8815), 43 states have internal predecessors, (8815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:58:27,394 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 205.0) internal successors, (8815), 43 states have internal predecessors, (8815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:58:27,394 INFO L185 Difference]: Start difference. First operand has 1554 places, 4785 transitions, 162225 flow. Second operand 42 states and 3205 transitions. [2021-03-24 11:58:27,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1595 places, 5982 transitions, 216583 flow Received shutdown request... [2021-03-24 11:58:44,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-24 11:58:44,213 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-24 11:58:44,226 WARN L224 ceAbstractionStarter]: Timeout [2021-03-24 11:58:44,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 11:58:44 BasicIcfg [2021-03-24 11:58:44,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 11:58:44,228 INFO L168 Benchmark]: Toolchain (without parser) took 774281.91 ms. Allocated memory was 339.7 MB in the beginning and 15.3 GB in the end (delta: 15.0 GB). Free memory was 303.2 MB in the beginning and 10.3 GB in the end (delta: -10.0 GB). Peak memory consumption was 5.6 GB. Max. memory is 16.0 GB. [2021-03-24 11:58:44,228 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 339.7 MB. Free memory was 321.3 MB in the beginning and 321.2 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 11:58:44,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.65 ms. Allocated memory is still 339.7 MB. Free memory was 303.0 MB in the beginning and 293.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-24 11:58:44,228 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.47 ms. Allocated memory is still 339.7 MB. Free memory was 292.2 MB in the beginning and 290.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 11:58:44,228 INFO L168 Benchmark]: Boogie Preprocessor took 32.77 ms. Allocated memory is still 339.7 MB. Free memory was 290.1 MB in the beginning and 288.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 11:58:44,231 INFO L168 Benchmark]: RCFGBuilder took 525.21 ms. Allocated memory is still 339.7 MB. Free memory was 288.0 MB in the beginning and 256.6 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-03-24 11:58:44,232 INFO L168 Benchmark]: TraceAbstraction took 773148.68 ms. Allocated memory was 339.7 MB in the beginning and 15.3 GB in the end (delta: 15.0 GB). Free memory was 256.6 MB in the beginning and 10.3 GB in the end (delta: -10.0 GB). Peak memory consumption was 5.5 GB. Max. memory is 16.0 GB. [2021-03-24 11:58:44,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 ms. Allocated memory is still 339.7 MB. Free memory was 321.3 MB in the beginning and 321.2 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 518.65 ms. Allocated memory is still 339.7 MB. Free memory was 303.0 MB in the beginning and 293.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.47 ms. Allocated memory is still 339.7 MB. Free memory was 292.2 MB in the beginning and 290.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.77 ms. Allocated memory is still 339.7 MB. Free memory was 290.1 MB in the beginning and 288.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 525.21 ms. Allocated memory is still 339.7 MB. Free memory was 288.0 MB in the beginning and 256.6 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 773148.68 ms. Allocated memory was 339.7 MB in the beginning and 15.3 GB in the end (delta: 15.0 GB). Free memory was 256.6 MB in the beginning and 10.3 GB in the end (delta: -10.0 GB). Peak memory consumption was 5.5 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1228.7ms, 124 PlacesBefore, 74 PlacesAfterwards, 130 TransitionsBefore, 78 TransitionsAfterwards, 4968 CoEnabledTransitionPairs, 4 FixpointIterations, 18 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 2473 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2028, positive: 2015, positive conditional: 0, positive unconditional: 2015, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1649, positive: 1642, positive conditional: 0, positive unconditional: 1642, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1649, positive: 1642, positive conditional: 0, positive unconditional: 1642, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2028, positive: 373, positive conditional: 0, positive unconditional: 373, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 1649, unknown conditional: 0, unknown unconditional: 1649] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - TimeoutResultAtElement [Line: 832]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 832). Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 836]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 836). Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 837]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 837). Cancelled while executing RemoveRedundantFlow. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 130 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 773040.3ms, OverallIterations: 26, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 763110.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1328.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2612 SDtfs, 7958 SDslu, 18737 SDs, 0 SdLazy, 33478 SolverSat, 709 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14320.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1367 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1315 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14867 ImplicationChecksByTransitivity, 68976.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=162225occurred in iteration=25, InterpolantAutomatonStates: 953, 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: 43.1ms SsaConstructionTime, 401.3ms SatisfiabilityAnalysisTime, 7904.6ms InterpolantComputationTime, 1260 NumberOfCodeBlocks, 1260 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1234 ConstructedInterpolants, 0 QuantifiedInterpolants, 16763 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown