/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi002_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 20:16:21,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 20:16:21,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 20:16:21,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 20:16:21,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 20:16:21,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 20:16:21,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 20:16:21,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 20:16:21,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 20:16:21,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 20:16:21,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 20:16:21,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 20:16:21,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 20:16:21,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 20:16:21,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 20:16:21,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 20:16:21,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 20:16:21,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 20:16:21,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 20:16:21,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 20:16:21,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 20:16:21,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 20:16:21,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 20:16:21,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 20:16:21,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 20:16:21,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 20:16:21,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 20:16:21,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 20:16:21,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 20:16:21,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 20:16:21,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 20:16:21,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 20:16:21,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 20:16:21,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 20:16:21,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 20:16:21,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 20:16:21,518 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-SemanticLbe.epf [2021-03-11 20:16:21,549 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 20:16:21,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 20:16:21,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 20:16:21,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 20:16:21,552 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 20:16:21,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 20:16:21,553 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 20:16:21,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 20:16:21,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 20:16:21,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 20:16:21,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 20:16:21,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 20:16:21,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 20:16:21,554 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 20:16:21,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 20:16:21,554 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 20:16:21,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 20:16:21,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 20:16:21,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 20:16:21,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 20:16:21,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 20:16:21,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 20:16:21,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 20:16:21,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 20:16:21,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 20:16:21,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 20:16:21,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 20:16:21,556 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 20:16:21,556 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 20:16:21,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 20:16:21,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 20:16:21,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 20:16:21,841 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 20:16:21,842 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 20:16:21,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_rmo.opt.i [2021-03-11 20:16:21,891 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d41d508e4/95e11b5218af455d80e2904117e89291/FLAG2fd9c0ea4 [2021-03-11 20:16:22,334 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 20:16:22,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_rmo.opt.i [2021-03-11 20:16:22,345 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d41d508e4/95e11b5218af455d80e2904117e89291/FLAG2fd9c0ea4 [2021-03-11 20:16:22,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d41d508e4/95e11b5218af455d80e2904117e89291 [2021-03-11 20:16:22,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 20:16:22,360 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 20:16:22,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 20:16:22,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 20:16:22,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 20:16:22,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:16:22" (1/1) ... [2021-03-11 20:16:22,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa4d8db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:16:22, skipping insertion in model container [2021-03-11 20:16:22,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:16:22" (1/1) ... [2021-03-11 20:16:22,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 20:16:22,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 20:16:22,534 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_rmo.opt.i[991,1004] [2021-03-11 20:16:22,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:16:22,644 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 20:16:22,652 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_rmo.opt.i[991,1004] [2021-03-11 20:16:22,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:16:22,734 INFO L208 MainTranslator]: Completed translation [2021-03-11 20:16:22,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:16:22 WrapperNode [2021-03-11 20:16:22,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 20:16:22,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 20:16:22,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 20:16:22,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 20:16:22,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:16:22" (1/1) ... [2021-03-11 20:16:22,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:16:22" (1/1) ... [2021-03-11 20:16:22,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 20:16:22,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 20:16:22,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 20:16:22,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 20:16:22,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:16:22" (1/1) ... [2021-03-11 20:16:22,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:16:22" (1/1) ... [2021-03-11 20:16:22,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:16:22" (1/1) ... [2021-03-11 20:16:22,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:16:22" (1/1) ... [2021-03-11 20:16:22,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:16:22" (1/1) ... [2021-03-11 20:16:22,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:16:22" (1/1) ... [2021-03-11 20:16:22,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:16:22" (1/1) ... [2021-03-11 20:16:22,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 20:16:22,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 20:16:22,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 20:16:22,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 20:16:22,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:16:22" (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 [2021-03-11 20:16:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 20:16:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 20:16:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 20:16:22,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 20:16:22,847 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-11 20:16:22,847 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-11 20:16:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-11 20:16:22,848 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-11 20:16:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 20:16:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 20:16:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 20:16:22,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 20:16:22,850 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 20:16:25,387 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 20:16:25,388 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-11 20:16:25,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:16:25 BoogieIcfgContainer [2021-03-11 20:16:25,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 20:16:25,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 20:16:25,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 20:16:25,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 20:16:25,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 08:16:22" (1/3) ... [2021-03-11 20:16:25,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f5afc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:16:25, skipping insertion in model container [2021-03-11 20:16:25,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:16:22" (2/3) ... [2021-03-11 20:16:25,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f5afc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:16:25, skipping insertion in model container [2021-03-11 20:16:25,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:16:25" (3/3) ... [2021-03-11 20:16:25,397 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi002_rmo.opt.i [2021-03-11 20:16:25,402 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 20:16:25,405 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-11 20:16:25,405 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 20:16:25,451 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,451 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,451 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,451 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,451 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,451 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,451 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,452 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,454 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,454 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,454 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,454 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,454 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,454 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,456 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,468 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,468 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,474 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,474 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,475 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,475 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,475 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,475 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,475 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,476 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite62| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite62| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite68| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite67| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite66| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite64| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite65| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite68| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite67| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite66| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite64| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite65| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,486 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,486 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,488 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,495 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,495 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite65| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite66| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite67| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite68| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite62| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite64| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,505 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:16:25,506 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 20:16:25,518 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-11 20:16:25,535 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 20:16:25,535 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 20:16:25,535 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 20:16:25,535 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 20:16:25,535 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 20:16:25,535 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 20:16:25,535 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 20:16:25,535 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 20:16:25,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 85 transitions, 180 flow [2021-03-11 20:16:25,578 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-03-11 20:16:25,578 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:16:25,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2021-03-11 20:16:25,587 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 85 transitions, 180 flow [2021-03-11 20:16:25,593 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 83 transitions, 172 flow [2021-03-11 20:16:25,595 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 20:16:25,601 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 83 transitions, 172 flow [2021-03-11 20:16:25,605 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 83 transitions, 172 flow [2021-03-11 20:16:25,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 83 transitions, 172 flow [2021-03-11 20:16:25,625 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-03-11 20:16:25,626 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:16:25,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2021-03-11 20:16:25,628 INFO L116 LiptonReduction]: Number of co-enabled transitions 1124 [2021-03-11 20:16:26,960 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-11 20:16:27,431 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-11 20:16:27,579 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-11 20:16:28,171 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-11 20:16:28,334 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-11 20:16:29,864 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-03-11 20:16:30,040 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-03-11 20:16:31,246 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-11 20:16:31,436 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-11 20:16:31,835 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-11 20:16:32,014 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-11 20:16:32,017 INFO L131 LiptonReduction]: Checked pairs total: 2940 [2021-03-11 20:16:32,017 INFO L133 LiptonReduction]: Total number of compositions: 74 [2021-03-11 20:16:32,018 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6425 [2021-03-11 20:16:32,023 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-11 20:16:32,023 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:16:32,024 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:32,024 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 20:16:32,024 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:32,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:32,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1599977982, now seen corresponding path program 1 times [2021-03-11 20:16:32,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:32,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267630721] [2021-03-11 20:16:32,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:32,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:32,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:16:32,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:32,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267630721] [2021-03-11 20:16:32,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:32,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 20:16:32,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138050541] [2021-03-11 20:16:32,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:16:32,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:32,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:16:32,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:16:32,180 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 159 [2021-03-11 20:16:32,182 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 21 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:32,182 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 159 [2021-03-11 20:16:32,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:32,257 INFO L129 PetriNetUnfolder]: 57/144 cut-off events. [2021-03-11 20:16:32,257 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:16:32,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 144 events. 57/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 631 event pairs, 6 based on Foata normal form. 15/152 useless extension candidates. Maximal degree in co-relation 248. Up to 88 conditions per place. [2021-03-11 20:16:32,259 INFO L132 encePairwiseOnDemand]: 155/159 looper letters, 12 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2021-03-11 20:16:32,259 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 24 transitions, 82 flow [2021-03-11 20:16:32,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:16:32,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:16:32,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2021-03-11 20:16:32,269 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8280922431865828 [2021-03-11 20:16:32,270 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2021-03-11 20:16:32,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2021-03-11 20:16:32,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:32,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2021-03-11 20:16:32,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,284 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,285 INFO L185 Difference]: Start difference. First operand has 27 places, 21 transitions, 48 flow. Second operand 3 states and 395 transitions. [2021-03-11 20:16:32,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 24 transitions, 82 flow [2021-03-11 20:16:32,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 24 transitions, 80 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 20:16:32,291 INFO L241 Difference]: Finished difference. Result has 26 places, 19 transitions, 46 flow [2021-03-11 20:16:32,292 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=26, PETRI_TRANSITIONS=19} [2021-03-11 20:16:32,293 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, -1 predicate places. [2021-03-11 20:16:32,293 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 46 flow [2021-03-11 20:16:32,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,293 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:32,293 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:32,293 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 20:16:32,293 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:32,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:32,294 INFO L82 PathProgramCache]: Analyzing trace with hash -600199316, now seen corresponding path program 1 times [2021-03-11 20:16:32,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:32,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12347383] [2021-03-11 20:16:32,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:32,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:32,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:16:32,382 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 20:16:32,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:32,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:32,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12347383] [2021-03-11 20:16:32,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:32,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:16:32,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922131314] [2021-03-11 20:16:32,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:16:32,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:32,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:16:32,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:16:32,410 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 159 [2021-03-11 20:16:32,411 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 46 flow. Second operand has 4 states, 4 states have (on average 126.75) internal successors, (507), 4 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,411 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:32,411 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 159 [2021-03-11 20:16:32,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:32,451 INFO L129 PetriNetUnfolder]: 1/30 cut-off events. [2021-03-11 20:16:32,451 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:16:32,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 30 events. 1/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 40. Up to 5 conditions per place. [2021-03-11 20:16:32,451 INFO L132 encePairwiseOnDemand]: 155/159 looper letters, 2 selfloop transitions, 2 changer transitions 5/23 dead transitions. [2021-03-11 20:16:32,452 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 72 flow [2021-03-11 20:16:32,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 20:16:32,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 20:16:32,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 641 transitions. [2021-03-11 20:16:32,457 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8062893081761007 [2021-03-11 20:16:32,457 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 641 transitions. [2021-03-11 20:16:32,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 641 transitions. [2021-03-11 20:16:32,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:32,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 641 transitions. [2021-03-11 20:16:32,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.2) internal successors, (641), 5 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,460 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,460 INFO L185 Difference]: Start difference. First operand has 26 places, 19 transitions, 46 flow. Second operand 5 states and 641 transitions. [2021-03-11 20:16:32,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 72 flow [2021-03-11 20:16:32,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 20:16:32,461 INFO L241 Difference]: Finished difference. Result has 31 places, 18 transitions, 52 flow [2021-03-11 20:16:32,461 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=52, PETRI_PLACES=31, PETRI_TRANSITIONS=18} [2021-03-11 20:16:32,462 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2021-03-11 20:16:32,462 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 18 transitions, 52 flow [2021-03-11 20:16:32,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 126.75) internal successors, (507), 4 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,462 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:32,462 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:32,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 20:16:32,462 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:32,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:32,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1833854419, now seen corresponding path program 1 times [2021-03-11 20:16:32,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:32,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729380646] [2021-03-11 20:16:32,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:32,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:32,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:16:32,533 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 20:16:32,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:32,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:32,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729380646] [2021-03-11 20:16:32,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:32,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:16:32,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973251079] [2021-03-11 20:16:32,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:16:32,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:32,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:16:32,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:16:32,554 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 159 [2021-03-11 20:16:32,554 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 18 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,554 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:32,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 159 [2021-03-11 20:16:32,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:32,585 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-03-11 20:16:32,585 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-11 20:16:32,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 22 events. 0/22 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 2/24 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-11 20:16:32,586 INFO L132 encePairwiseOnDemand]: 155/159 looper letters, 2 selfloop transitions, 2 changer transitions 2/20 dead transitions. [2021-03-11 20:16:32,586 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 20 transitions, 70 flow [2021-03-11 20:16:32,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 20:16:32,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 20:16:32,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 643 transitions. [2021-03-11 20:16:32,587 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8088050314465409 [2021-03-11 20:16:32,587 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 643 transitions. [2021-03-11 20:16:32,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 643 transitions. [2021-03-11 20:16:32,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:32,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 643 transitions. [2021-03-11 20:16:32,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.6) internal successors, (643), 5 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,590 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,590 INFO L185 Difference]: Start difference. First operand has 31 places, 18 transitions, 52 flow. Second operand 5 states and 643 transitions. [2021-03-11 20:16:32,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 20 transitions, 70 flow [2021-03-11 20:16:32,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 20 transitions, 62 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-11 20:16:32,591 INFO L241 Difference]: Finished difference. Result has 31 places, 18 transitions, 56 flow [2021-03-11 20:16:32,591 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=56, PETRI_PLACES=31, PETRI_TRANSITIONS=18} [2021-03-11 20:16:32,591 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2021-03-11 20:16:32,592 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 18 transitions, 56 flow [2021-03-11 20:16:32,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,592 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:32,592 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:32,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 20:16:32,592 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:32,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:32,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1570544765, now seen corresponding path program 1 times [2021-03-11 20:16:32,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:32,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22619073] [2021-03-11 20:16:32,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:32,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:32,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 20:16:32,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:32,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:16:32,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:32,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 20:16:32,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:32,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 20:16:32,776 INFO L142 QuantifierPusher]: treesize reduction 4, result has 88.2 percent of original size [2021-03-11 20:16:32,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:16:32,812 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size [2021-03-11 20:16:32,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 20:16:32,834 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-11 20:16:32,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 20:16:32,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:32,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22619073] [2021-03-11 20:16:32,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:32,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 20:16:32,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967510353] [2021-03-11 20:16:32,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 20:16:32,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:32,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 20:16:32,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-11 20:16:32,851 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 159 [2021-03-11 20:16:32,852 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 18 transitions, 56 flow. Second operand has 9 states, 9 states have (on average 97.88888888888889) internal successors, (881), 9 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:32,852 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:32,852 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 159 [2021-03-11 20:16:32,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:33,181 INFO L129 PetriNetUnfolder]: 73/173 cut-off events. [2021-03-11 20:16:33,181 INFO L130 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2021-03-11 20:16:33,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 387 conditions, 173 events. 73/173 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 756 event pairs, 4 based on Foata normal form. 8/180 useless extension candidates. Maximal degree in co-relation 374. Up to 94 conditions per place. [2021-03-11 20:16:33,184 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 17 selfloop transitions, 13 changer transitions 9/46 dead transitions. [2021-03-11 20:16:33,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 46 transitions, 204 flow [2021-03-11 20:16:33,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 20:16:33,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 20:16:33,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1012 transitions. [2021-03-11 20:16:33,187 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6364779874213836 [2021-03-11 20:16:33,187 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1012 transitions. [2021-03-11 20:16:33,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1012 transitions. [2021-03-11 20:16:33,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:33,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1012 transitions. [2021-03-11 20:16:33,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 101.2) internal successors, (1012), 10 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:33,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:33,193 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:33,193 INFO L185 Difference]: Start difference. First operand has 31 places, 18 transitions, 56 flow. Second operand 10 states and 1012 transitions. [2021-03-11 20:16:33,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 46 transitions, 204 flow [2021-03-11 20:16:33,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 46 transitions, 192 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-11 20:16:33,195 INFO L241 Difference]: Finished difference. Result has 41 places, 29 transitions, 144 flow [2021-03-11 20:16:33,195 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=144, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2021-03-11 20:16:33,195 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 14 predicate places. [2021-03-11 20:16:33,195 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 144 flow [2021-03-11 20:16:33,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 97.88888888888889) internal successors, (881), 9 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:33,196 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:33,196 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:33,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 20:16:33,196 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:33,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:33,196 INFO L82 PathProgramCache]: Analyzing trace with hash 903471899, now seen corresponding path program 2 times [2021-03-11 20:16:33,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:33,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642849787] [2021-03-11 20:16:33,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:33,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:33,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:16:33,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:33,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 20:16:33,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:33,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 20:16:33,368 INFO L142 QuantifierPusher]: treesize reduction 7, result has 83.7 percent of original size [2021-03-11 20:16:33,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:16:33,417 INFO L142 QuantifierPusher]: treesize reduction 100, result has 53.3 percent of original size [2021-03-11 20:16:33,422 INFO L147 QuantifierPusher]: treesize reduction 41, result has 64.0 percent of original size 73 [2021-03-11 20:16:33,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:33,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 20:16:33,492 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 20:16:33,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:33,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:33,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642849787] [2021-03-11 20:16:33,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:33,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 20:16:33,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498637312] [2021-03-11 20:16:33,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 20:16:33,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:33,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 20:16:33,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-11 20:16:33,513 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 159 [2021-03-11 20:16:33,513 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 144 flow. Second operand has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:33,513 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:33,513 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 159 [2021-03-11 20:16:33,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:33,721 INFO L129 PetriNetUnfolder]: 81/188 cut-off events. [2021-03-11 20:16:33,721 INFO L130 PetriNetUnfolder]: For 283/297 co-relation queries the response was YES. [2021-03-11 20:16:33,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 188 events. 81/188 cut-off events. For 283/297 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 824 event pairs, 6 based on Foata normal form. 10/197 useless extension candidates. Maximal degree in co-relation 635. Up to 104 conditions per place. [2021-03-11 20:16:33,723 INFO L132 encePairwiseOnDemand]: 153/159 looper letters, 25 selfloop transitions, 8 changer transitions 5/45 dead transitions. [2021-03-11 20:16:33,723 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 45 transitions, 318 flow [2021-03-11 20:16:33,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 20:16:33,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 20:16:33,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 716 transitions. [2021-03-11 20:16:33,727 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6433063791554358 [2021-03-11 20:16:33,727 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 716 transitions. [2021-03-11 20:16:33,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 716 transitions. [2021-03-11 20:16:33,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:33,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 716 transitions. [2021-03-11 20:16:33,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 102.28571428571429) internal successors, (716), 7 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:33,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:33,731 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:33,731 INFO L185 Difference]: Start difference. First operand has 41 places, 29 transitions, 144 flow. Second operand 7 states and 716 transitions. [2021-03-11 20:16:33,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 45 transitions, 318 flow [2021-03-11 20:16:33,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 45 transitions, 304 flow, removed 7 selfloop flow, removed 2 redundant places. [2021-03-11 20:16:33,735 INFO L241 Difference]: Finished difference. Result has 45 places, 31 transitions, 180 flow [2021-03-11 20:16:33,735 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=180, PETRI_PLACES=45, PETRI_TRANSITIONS=31} [2021-03-11 20:16:33,735 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 18 predicate places. [2021-03-11 20:16:33,735 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 31 transitions, 180 flow [2021-03-11 20:16:33,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:33,736 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:33,736 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:33,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 20:16:33,736 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:33,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:33,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1077952631, now seen corresponding path program 3 times [2021-03-11 20:16:33,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:33,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209497255] [2021-03-11 20:16:33,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:33,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:33,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:16:33,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:33,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:16:33,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:33,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:16:33,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:33,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 20:16:33,813 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 20:16:33,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:33,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:33,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209497255] [2021-03-11 20:16:33,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:33,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 20:16:33,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443093469] [2021-03-11 20:16:33,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 20:16:33,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:33,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 20:16:33,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 20:16:33,831 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 159 [2021-03-11 20:16:33,831 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 31 transitions, 180 flow. Second operand has 6 states, 6 states have (on average 99.33333333333333) internal successors, (596), 6 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:33,832 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:33,832 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 159 [2021-03-11 20:16:33,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:34,018 INFO L129 PetriNetUnfolder]: 87/204 cut-off events. [2021-03-11 20:16:34,018 INFO L130 PetriNetUnfolder]: For 406/422 co-relation queries the response was YES. [2021-03-11 20:16:34,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 763 conditions, 204 events. 87/204 cut-off events. For 406/422 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 944 event pairs, 6 based on Foata normal form. 13/216 useless extension candidates. Maximal degree in co-relation 742. Up to 111 conditions per place. [2021-03-11 20:16:34,019 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 18 selfloop transitions, 20 changer transitions 7/52 dead transitions. [2021-03-11 20:16:34,019 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 52 transitions, 400 flow [2021-03-11 20:16:34,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 20:16:34,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 20:16:34,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 817 transitions. [2021-03-11 20:16:34,021 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6422955974842768 [2021-03-11 20:16:34,022 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 817 transitions. [2021-03-11 20:16:34,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 817 transitions. [2021-03-11 20:16:34,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:34,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 817 transitions. [2021-03-11 20:16:34,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 102.125) internal successors, (817), 8 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:34,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:34,025 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:34,025 INFO L185 Difference]: Start difference. First operand has 45 places, 31 transitions, 180 flow. Second operand 8 states and 817 transitions. [2021-03-11 20:16:34,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 52 transitions, 400 flow [2021-03-11 20:16:34,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 52 transitions, 384 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-11 20:16:34,030 INFO L241 Difference]: Finished difference. Result has 50 places, 41 transitions, 324 flow [2021-03-11 20:16:34,030 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=324, PETRI_PLACES=50, PETRI_TRANSITIONS=41} [2021-03-11 20:16:34,030 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 23 predicate places. [2021-03-11 20:16:34,030 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 324 flow [2021-03-11 20:16:34,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 99.33333333333333) internal successors, (596), 6 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:34,031 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:34,031 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:34,031 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 20:16:34,031 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:34,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:34,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1598444994, now seen corresponding path program 1 times [2021-03-11 20:16:34,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:34,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013451619] [2021-03-11 20:16:34,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:34,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:34,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:16:34,098 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 20:16:34,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 20:16:34,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:34,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:16:34,111 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 20:16:34,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:34,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:34,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013451619] [2021-03-11 20:16:34,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:34,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 20:16:34,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059080028] [2021-03-11 20:16:34,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 20:16:34,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:34,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 20:16:34,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 20:16:34,127 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 159 [2021-03-11 20:16:34,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 324 flow. Second operand has 5 states, 5 states have (on average 106.6) internal successors, (533), 5 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:34,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:34,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 159 [2021-03-11 20:16:34,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:34,240 INFO L129 PetriNetUnfolder]: 103/248 cut-off events. [2021-03-11 20:16:34,240 INFO L130 PetriNetUnfolder]: For 750/763 co-relation queries the response was YES. [2021-03-11 20:16:34,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1164 conditions, 248 events. 103/248 cut-off events. For 750/763 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1242 event pairs, 20 based on Foata normal form. 6/251 useless extension candidates. Maximal degree in co-relation 1140. Up to 123 conditions per place. [2021-03-11 20:16:34,243 INFO L132 encePairwiseOnDemand]: 151/159 looper letters, 27 selfloop transitions, 8 changer transitions 14/59 dead transitions. [2021-03-11 20:16:34,243 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 59 transitions, 581 flow [2021-03-11 20:16:34,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 20:16:34,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 20:16:34,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 549 transitions. [2021-03-11 20:16:34,246 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.690566037735849 [2021-03-11 20:16:34,246 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 549 transitions. [2021-03-11 20:16:34,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 549 transitions. [2021-03-11 20:16:34,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:34,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 549 transitions. [2021-03-11 20:16:34,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.8) internal successors, (549), 5 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) [2021-03-11 20:16:34,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:34,248 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:34,248 INFO L185 Difference]: Start difference. First operand has 50 places, 41 transitions, 324 flow. Second operand 5 states and 549 transitions. [2021-03-11 20:16:34,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 59 transitions, 581 flow [2021-03-11 20:16:34,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 59 transitions, 558 flow, removed 11 selfloop flow, removed 2 redundant places. [2021-03-11 20:16:34,252 INFO L241 Difference]: Finished difference. Result has 53 places, 45 transitions, 380 flow [2021-03-11 20:16:34,253 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=380, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2021-03-11 20:16:34,253 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 26 predicate places. [2021-03-11 20:16:34,253 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 380 flow [2021-03-11 20:16:34,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.6) internal successors, (533), 5 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:34,253 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:34,253 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:34,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 20:16:34,253 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:34,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:34,253 INFO L82 PathProgramCache]: Analyzing trace with hash -302901792, now seen corresponding path program 2 times [2021-03-11 20:16:34,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:34,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818637387] [2021-03-11 20:16:34,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:34,313 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 20:16:34,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:16:34,319 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-03-11 20:16:34,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 20:16:34,329 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-03-11 20:16:34,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:16:34,340 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size [2021-03-11 20:16:34,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 20:16:34,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:34,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 20:16:34,364 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-11 20:16:34,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 20:16:34,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:34,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818637387] [2021-03-11 20:16:34,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:34,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 20:16:34,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659784431] [2021-03-11 20:16:34,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 20:16:34,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:34,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 20:16:34,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-11 20:16:34,381 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 159 [2021-03-11 20:16:34,381 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 380 flow. Second operand has 8 states, 8 states have (on average 92.125) internal successors, (737), 8 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:34,381 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:34,381 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 159 [2021-03-11 20:16:34,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:34,647 INFO L129 PetriNetUnfolder]: 186/382 cut-off events. [2021-03-11 20:16:34,647 INFO L130 PetriNetUnfolder]: For 1621/1629 co-relation queries the response was YES. [2021-03-11 20:16:34,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1736 conditions, 382 events. 186/382 cut-off events. For 1621/1629 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1767 event pairs, 40 based on Foata normal form. 12/392 useless extension candidates. Maximal degree in co-relation 1710. Up to 152 conditions per place. [2021-03-11 20:16:34,649 INFO L132 encePairwiseOnDemand]: 148/159 looper letters, 35 selfloop transitions, 15 changer transitions 35/91 dead transitions. [2021-03-11 20:16:34,649 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 91 transitions, 866 flow [2021-03-11 20:16:34,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 20:16:34,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 20:16:34,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 970 transitions. [2021-03-11 20:16:34,652 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.610062893081761 [2021-03-11 20:16:34,652 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 970 transitions. [2021-03-11 20:16:34,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 970 transitions. [2021-03-11 20:16:34,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:34,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 970 transitions. [2021-03-11 20:16:34,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 97.0) internal successors, (970), 10 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:34,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:34,657 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:34,657 INFO L185 Difference]: Start difference. First operand has 53 places, 45 transitions, 380 flow. Second operand 10 states and 970 transitions. [2021-03-11 20:16:34,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 91 transitions, 866 flow [2021-03-11 20:16:34,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 91 transitions, 813 flow, removed 21 selfloop flow, removed 5 redundant places. [2021-03-11 20:16:34,663 INFO L241 Difference]: Finished difference. Result has 63 places, 44 transitions, 411 flow [2021-03-11 20:16:34,663 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=411, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2021-03-11 20:16:34,663 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 36 predicate places. [2021-03-11 20:16:34,663 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 411 flow [2021-03-11 20:16:34,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 92.125) internal successors, (737), 8 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:34,663 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:34,663 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:34,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 20:16:34,664 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:34,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:34,664 INFO L82 PathProgramCache]: Analyzing trace with hash 942397054, now seen corresponding path program 3 times [2021-03-11 20:16:34,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:34,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520024146] [2021-03-11 20:16:34,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:34,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:34,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:16:34,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:34,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 20:16:34,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:34,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 20:16:34,762 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-03-11 20:16:34,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:16:34,772 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.3 percent of original size [2021-03-11 20:16:34,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 20:16:34,790 INFO L142 QuantifierPusher]: treesize reduction 7, result has 86.0 percent of original size [2021-03-11 20:16:34,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:16:34,826 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-11 20:16:34,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 20:16:34,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:34,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520024146] [2021-03-11 20:16:34,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:34,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 20:16:34,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435309814] [2021-03-11 20:16:34,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 20:16:34,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:34,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 20:16:34,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-03-11 20:16:34,841 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 159 [2021-03-11 20:16:34,842 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 411 flow. Second operand has 9 states, 9 states have (on average 99.0) internal successors, (891), 9 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:34,842 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:34,842 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 159 [2021-03-11 20:16:34,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:35,130 INFO L129 PetriNetUnfolder]: 74/195 cut-off events. [2021-03-11 20:16:35,130 INFO L130 PetriNetUnfolder]: For 992/1026 co-relation queries the response was YES. [2021-03-11 20:16:35,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1019 conditions, 195 events. 74/195 cut-off events. For 992/1026 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 881 event pairs, 9 based on Foata normal form. 24/218 useless extension candidates. Maximal degree in co-relation 988. Up to 113 conditions per place. [2021-03-11 20:16:35,132 INFO L132 encePairwiseOnDemand]: 148/159 looper letters, 24 selfloop transitions, 22 changer transitions 5/60 dead transitions. [2021-03-11 20:16:35,132 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 60 transitions, 645 flow [2021-03-11 20:16:35,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 20:16:35,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 20:16:35,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1019 transitions. [2021-03-11 20:16:35,134 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6408805031446541 [2021-03-11 20:16:35,134 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1019 transitions. [2021-03-11 20:16:35,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1019 transitions. [2021-03-11 20:16:35,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:35,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1019 transitions. [2021-03-11 20:16:35,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 101.9) internal successors, (1019), 10 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:35,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:35,138 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:35,138 INFO L185 Difference]: Start difference. First operand has 63 places, 44 transitions, 411 flow. Second operand 10 states and 1019 transitions. [2021-03-11 20:16:35,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 60 transitions, 645 flow [2021-03-11 20:16:35,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 60 transitions, 633 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-11 20:16:35,141 INFO L241 Difference]: Finished difference. Result has 68 places, 51 transitions, 539 flow [2021-03-11 20:16:35,141 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=539, PETRI_PLACES=68, PETRI_TRANSITIONS=51} [2021-03-11 20:16:35,142 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 41 predicate places. [2021-03-11 20:16:35,142 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 51 transitions, 539 flow [2021-03-11 20:16:35,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 99.0) internal successors, (891), 9 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:35,142 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:35,142 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:35,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 20:16:35,142 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:35,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:35,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1696811572, now seen corresponding path program 4 times [2021-03-11 20:16:35,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:35,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294016254] [2021-03-11 20:16:35,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:35,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:35,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:16:35,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:35,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:16:35,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:35,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 20:16:35,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:35,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 20:16:35,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:35,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 20:16:35,269 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-11 20:16:35,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 20:16:35,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:35,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294016254] [2021-03-11 20:16:35,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:35,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 20:16:35,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636399409] [2021-03-11 20:16:35,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 20:16:35,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:35,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 20:16:35,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 20:16:35,283 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 159 [2021-03-11 20:16:35,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 51 transitions, 539 flow. Second operand has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:35,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:35,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 159 [2021-03-11 20:16:35,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:35,478 INFO L129 PetriNetUnfolder]: 70/189 cut-off events. [2021-03-11 20:16:35,478 INFO L130 PetriNetUnfolder]: For 1166/1190 co-relation queries the response was YES. [2021-03-11 20:16:35,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 189 events. 70/189 cut-off events. For 1166/1190 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 856 event pairs, 7 based on Foata normal form. 16/205 useless extension candidates. Maximal degree in co-relation 1098. Up to 89 conditions per place. [2021-03-11 20:16:35,480 INFO L132 encePairwiseOnDemand]: 150/159 looper letters, 24 selfloop transitions, 26 changer transitions 5/64 dead transitions. [2021-03-11 20:16:35,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 64 transitions, 791 flow [2021-03-11 20:16:35,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 20:16:35,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 20:16:35,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 896 transitions. [2021-03-11 20:16:35,482 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6261355695317959 [2021-03-11 20:16:35,482 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 896 transitions. [2021-03-11 20:16:35,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 896 transitions. [2021-03-11 20:16:35,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:35,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 896 transitions. [2021-03-11 20:16:35,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 99.55555555555556) internal successors, (896), 9 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:35,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:35,486 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:35,486 INFO L185 Difference]: Start difference. First operand has 68 places, 51 transitions, 539 flow. Second operand 9 states and 896 transitions. [2021-03-11 20:16:35,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 64 transitions, 791 flow [2021-03-11 20:16:35,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 64 transitions, 704 flow, removed 22 selfloop flow, removed 6 redundant places. [2021-03-11 20:16:35,490 INFO L241 Difference]: Finished difference. Result has 71 places, 53 transitions, 560 flow [2021-03-11 20:16:35,491 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=560, PETRI_PLACES=71, PETRI_TRANSITIONS=53} [2021-03-11 20:16:35,491 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 44 predicate places. [2021-03-11 20:16:35,491 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 53 transitions, 560 flow [2021-03-11 20:16:35,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:35,491 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:35,491 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:35,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 20:16:35,491 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:35,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:35,492 INFO L82 PathProgramCache]: Analyzing trace with hash 943229305, now seen corresponding path program 1 times [2021-03-11 20:16:35,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:35,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089558830] [2021-03-11 20:16:35,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:35,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:35,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:16:35,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:35,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:16:35,587 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-03-11 20:16:35,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:35,608 INFO L142 QuantifierPusher]: treesize reduction 56, result has 68.9 percent of original size [2021-03-11 20:16:35,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-11 20:16:35,680 INFO L142 QuantifierPusher]: treesize reduction 43, result has 78.9 percent of original size [2021-03-11 20:16:35,682 INFO L147 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size 153 [2021-03-11 20:16:35,746 INFO L142 QuantifierPusher]: treesize reduction 8, result has 84.0 percent of original size [2021-03-11 20:16:35,747 INFO L147 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size 33 [2021-03-11 20:16:35,765 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 20:16:35,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:35,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:35,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089558830] [2021-03-11 20:16:35,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:35,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 20:16:35,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600696371] [2021-03-11 20:16:35,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 20:16:35,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:35,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 20:16:35,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-11 20:16:35,785 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 159 [2021-03-11 20:16:35,786 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 53 transitions, 560 flow. Second operand has 8 states, 8 states have (on average 96.125) internal successors, (769), 8 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:35,786 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:35,786 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 159 [2021-03-11 20:16:35,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:36,295 INFO L129 PetriNetUnfolder]: 70/195 cut-off events. [2021-03-11 20:16:36,295 INFO L130 PetriNetUnfolder]: For 1373/1393 co-relation queries the response was YES. [2021-03-11 20:16:36,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 195 events. 70/195 cut-off events. For 1373/1393 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 926 event pairs, 5 based on Foata normal form. 16/211 useless extension candidates. Maximal degree in co-relation 1145. Up to 70 conditions per place. [2021-03-11 20:16:36,297 INFO L132 encePairwiseOnDemand]: 151/159 looper letters, 33 selfloop transitions, 25 changer transitions 5/72 dead transitions. [2021-03-11 20:16:36,297 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 72 transitions, 902 flow [2021-03-11 20:16:36,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 20:16:36,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 20:16:36,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1179 transitions. [2021-03-11 20:16:36,300 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6179245283018868 [2021-03-11 20:16:36,300 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1179 transitions. [2021-03-11 20:16:36,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1179 transitions. [2021-03-11 20:16:36,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:36,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1179 transitions. [2021-03-11 20:16:36,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 98.25) internal successors, (1179), 12 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:36,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 159.0) internal successors, (2067), 13 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:36,304 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 159.0) internal successors, (2067), 13 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:36,304 INFO L185 Difference]: Start difference. First operand has 71 places, 53 transitions, 560 flow. Second operand 12 states and 1179 transitions. [2021-03-11 20:16:36,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 72 transitions, 902 flow [2021-03-11 20:16:36,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 72 transitions, 818 flow, removed 16 selfloop flow, removed 7 redundant places. [2021-03-11 20:16:36,308 INFO L241 Difference]: Finished difference. Result has 80 places, 56 transitions, 612 flow [2021-03-11 20:16:36,309 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=612, PETRI_PLACES=80, PETRI_TRANSITIONS=56} [2021-03-11 20:16:36,309 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 53 predicate places. [2021-03-11 20:16:36,309 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 56 transitions, 612 flow [2021-03-11 20:16:36,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 96.125) internal successors, (769), 8 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:36,309 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:36,309 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:36,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 20:16:36,309 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:36,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:36,309 INFO L82 PathProgramCache]: Analyzing trace with hash -2025676412, now seen corresponding path program 1 times [2021-03-11 20:16:36,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:36,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899248209] [2021-03-11 20:16:36,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:36,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:36,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:16:36,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:36,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:16:36,366 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-11 20:16:36,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 20:16:36,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:36,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 20:16:36,389 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 20:16:36,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:36,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:36,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899248209] [2021-03-11 20:16:36,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:36,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 20:16:36,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483447011] [2021-03-11 20:16:36,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 20:16:36,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:36,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 20:16:36,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-11 20:16:36,405 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 159 [2021-03-11 20:16:36,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 56 transitions, 612 flow. Second operand has 6 states, 6 states have (on average 103.66666666666667) internal successors, (622), 6 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:36,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:36,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 159 [2021-03-11 20:16:36,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:36,553 INFO L129 PetriNetUnfolder]: 69/194 cut-off events. [2021-03-11 20:16:36,553 INFO L130 PetriNetUnfolder]: For 1634/1657 co-relation queries the response was YES. [2021-03-11 20:16:36,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1211 conditions, 194 events. 69/194 cut-off events. For 1634/1657 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 935 event pairs, 5 based on Foata normal form. 15/209 useless extension candidates. Maximal degree in co-relation 1171. Up to 93 conditions per place. [2021-03-11 20:16:36,554 INFO L132 encePairwiseOnDemand]: 150/159 looper letters, 28 selfloop transitions, 25 changer transitions 2/64 dead transitions. [2021-03-11 20:16:36,554 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 64 transitions, 818 flow [2021-03-11 20:16:36,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 20:16:36,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 20:16:36,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 842 transitions. [2021-03-11 20:16:36,556 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6619496855345912 [2021-03-11 20:16:36,556 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 842 transitions. [2021-03-11 20:16:36,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 842 transitions. [2021-03-11 20:16:36,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:36,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 842 transitions. [2021-03-11 20:16:36,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 105.25) internal successors, (842), 8 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:36,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:36,560 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:36,560 INFO L185 Difference]: Start difference. First operand has 80 places, 56 transitions, 612 flow. Second operand 8 states and 842 transitions. [2021-03-11 20:16:36,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 64 transitions, 818 flow [2021-03-11 20:16:36,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 64 transitions, 768 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-03-11 20:16:36,566 INFO L241 Difference]: Finished difference. Result has 78 places, 57 transitions, 656 flow [2021-03-11 20:16:36,566 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=656, PETRI_PLACES=78, PETRI_TRANSITIONS=57} [2021-03-11 20:16:36,566 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 51 predicate places. [2021-03-11 20:16:36,566 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 57 transitions, 656 flow [2021-03-11 20:16:36,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 103.66666666666667) internal successors, (622), 6 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:36,566 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:36,566 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:36,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 20:16:36,567 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:36,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:36,567 INFO L82 PathProgramCache]: Analyzing trace with hash -310036856, now seen corresponding path program 1 times [2021-03-11 20:16:36,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:36,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150098184] [2021-03-11 20:16:36,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:36,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:36,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:16:36,628 INFO L142 QuantifierPusher]: treesize reduction 2, result has 88.9 percent of original size [2021-03-11 20:16:36,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 20:16:36,639 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 20:16:36,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:16:36,653 INFO L142 QuantifierPusher]: treesize reduction 10, result has 58.3 percent of original size [2021-03-11 20:16:36,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:16:36,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:36,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 20:16:36,678 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-11 20:16:36,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 20:16:36,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:36,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150098184] [2021-03-11 20:16:36,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:36,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 20:16:36,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389255252] [2021-03-11 20:16:36,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 20:16:36,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:36,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 20:16:36,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-11 20:16:36,692 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 159 [2021-03-11 20:16:36,692 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 57 transitions, 656 flow. Second operand has 8 states, 8 states have (on average 97.25) internal successors, (778), 8 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:36,693 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:36,693 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 159 [2021-03-11 20:16:36,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:36,894 INFO L129 PetriNetUnfolder]: 75/213 cut-off events. [2021-03-11 20:16:36,894 INFO L130 PetriNetUnfolder]: For 1870/1890 co-relation queries the response was YES. [2021-03-11 20:16:36,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1366 conditions, 213 events. 75/213 cut-off events. For 1870/1890 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1092 event pairs, 4 based on Foata normal form. 10/222 useless extension candidates. Maximal degree in co-relation 1327. Up to 90 conditions per place. [2021-03-11 20:16:36,896 INFO L132 encePairwiseOnDemand]: 150/159 looper letters, 33 selfloop transitions, 20 changer transitions 11/73 dead transitions. [2021-03-11 20:16:36,896 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 73 transitions, 973 flow [2021-03-11 20:16:36,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 20:16:36,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 20:16:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 900 transitions. [2021-03-11 20:16:36,901 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6289308176100629 [2021-03-11 20:16:36,901 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 900 transitions. [2021-03-11 20:16:36,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 900 transitions. [2021-03-11 20:16:36,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:36,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 900 transitions. [2021-03-11 20:16:36,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 100.0) internal successors, (900), 9 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:36,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:36,904 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:36,904 INFO L185 Difference]: Start difference. First operand has 78 places, 57 transitions, 656 flow. Second operand 9 states and 900 transitions. [2021-03-11 20:16:36,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 73 transitions, 973 flow [2021-03-11 20:16:36,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 73 transitions, 949 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-11 20:16:36,911 INFO L241 Difference]: Finished difference. Result has 81 places, 57 transitions, 690 flow [2021-03-11 20:16:36,911 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=690, PETRI_PLACES=81, PETRI_TRANSITIONS=57} [2021-03-11 20:16:36,911 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 54 predicate places. [2021-03-11 20:16:36,911 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 57 transitions, 690 flow [2021-03-11 20:16:36,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 97.25) internal successors, (778), 8 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:36,911 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:36,911 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:36,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 20:16:36,912 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:36,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:36,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1061583288, now seen corresponding path program 2 times [2021-03-11 20:16:36,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:36,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943771116] [2021-03-11 20:16:36,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:36,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:36,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 20:16:36,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:36,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 20:16:36,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:36,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 20:16:36,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:36,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:16:37,013 INFO L142 QuantifierPusher]: treesize reduction 9, result has 87.0 percent of original size [2021-03-11 20:16:37,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-11 20:16:37,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:37,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:16:37,132 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 20:16:37,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:37,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:37,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943771116] [2021-03-11 20:16:37,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:37,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 20:16:37,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130648067] [2021-03-11 20:16:37,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 20:16:37,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:37,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 20:16:37,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-11 20:16:37,157 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 159 [2021-03-11 20:16:37,157 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 57 transitions, 690 flow. Second operand has 8 states, 8 states have (on average 92.25) internal successors, (738), 8 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:37,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:37,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 159 [2021-03-11 20:16:37,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:37,688 INFO L129 PetriNetUnfolder]: 63/187 cut-off events. [2021-03-11 20:16:37,688 INFO L130 PetriNetUnfolder]: For 1785/1807 co-relation queries the response was YES. [2021-03-11 20:16:37,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 187 events. 63/187 cut-off events. For 1785/1807 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 919 event pairs, 5 based on Foata normal form. 18/205 useless extension candidates. Maximal degree in co-relation 1185. Up to 61 conditions per place. [2021-03-11 20:16:37,690 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 24 selfloop transitions, 38 changer transitions 4/75 dead transitions. [2021-03-11 20:16:37,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 75 transitions, 1072 flow [2021-03-11 20:16:37,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:16:37,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:16:37,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1225 transitions. [2021-03-11 20:16:37,692 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5926463473633284 [2021-03-11 20:16:37,692 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1225 transitions. [2021-03-11 20:16:37,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1225 transitions. [2021-03-11 20:16:37,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:37,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1225 transitions. [2021-03-11 20:16:37,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 94.23076923076923) internal successors, (1225), 13 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:37,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 159.0) internal successors, (2226), 14 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:37,697 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 159.0) internal successors, (2226), 14 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:37,697 INFO L185 Difference]: Start difference. First operand has 81 places, 57 transitions, 690 flow. Second operand 13 states and 1225 transitions. [2021-03-11 20:16:37,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 75 transitions, 1072 flow [2021-03-11 20:16:37,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 75 transitions, 1019 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-03-11 20:16:37,702 INFO L241 Difference]: Finished difference. Result has 90 places, 61 transitions, 827 flow [2021-03-11 20:16:37,702 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=827, PETRI_PLACES=90, PETRI_TRANSITIONS=61} [2021-03-11 20:16:37,703 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 63 predicate places. [2021-03-11 20:16:37,703 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 61 transitions, 827 flow [2021-03-11 20:16:37,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 92.25) internal successors, (738), 8 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:37,703 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:37,703 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:37,703 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 20:16:37,703 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:37,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:37,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1650690868, now seen corresponding path program 3 times [2021-03-11 20:16:37,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:37,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058285784] [2021-03-11 20:16:37,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:37,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:37,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 20:16:37,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:37,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:16:37,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:37,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:16:37,767 INFO L142 QuantifierPusher]: treesize reduction 12, result has 82.9 percent of original size [2021-03-11 20:16:37,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-11 20:16:37,788 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.9 percent of original size [2021-03-11 20:16:37,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 20:16:37,806 INFO L142 QuantifierPusher]: treesize reduction 7, result has 36.4 percent of original size [2021-03-11 20:16:37,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 20:16:37,812 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 20:16:37,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:37,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:37,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058285784] [2021-03-11 20:16:37,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:37,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 20:16:37,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402261909] [2021-03-11 20:16:37,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 20:16:37,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:37,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 20:16:37,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-11 20:16:37,835 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 159 [2021-03-11 20:16:37,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 61 transitions, 827 flow. Second operand has 9 states, 9 states have (on average 98.11111111111111) internal successors, (883), 9 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:37,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:37,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 159 [2021-03-11 20:16:37,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:38,004 INFO L129 PetriNetUnfolder]: 76/225 cut-off events. [2021-03-11 20:16:38,005 INFO L130 PetriNetUnfolder]: For 2519/2554 co-relation queries the response was YES. [2021-03-11 20:16:38,006 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1574 conditions, 225 events. 76/225 cut-off events. For 2519/2554 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1199 event pairs, 7 based on Foata normal form. 17/240 useless extension candidates. Maximal degree in co-relation 1531. Up to 115 conditions per place. [2021-03-11 20:16:38,006 INFO L132 encePairwiseOnDemand]: 150/159 looper letters, 42 selfloop transitions, 15 changer transitions 11/77 dead transitions. [2021-03-11 20:16:38,007 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 77 transitions, 1188 flow [2021-03-11 20:16:38,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 20:16:38,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 20:16:38,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 808 transitions. [2021-03-11 20:16:38,008 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6352201257861635 [2021-03-11 20:16:38,008 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 808 transitions. [2021-03-11 20:16:38,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 808 transitions. [2021-03-11 20:16:38,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:38,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 808 transitions. [2021-03-11 20:16:38,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 101.0) internal successors, (808), 8 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:38,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:38,020 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:38,020 INFO L185 Difference]: Start difference. First operand has 90 places, 61 transitions, 827 flow. Second operand 8 states and 808 transitions. [2021-03-11 20:16:38,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 77 transitions, 1188 flow [2021-03-11 20:16:38,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 77 transitions, 1117 flow, removed 19 selfloop flow, removed 8 redundant places. [2021-03-11 20:16:38,027 INFO L241 Difference]: Finished difference. Result has 90 places, 65 transitions, 870 flow [2021-03-11 20:16:38,027 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=870, PETRI_PLACES=90, PETRI_TRANSITIONS=65} [2021-03-11 20:16:38,027 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 63 predicate places. [2021-03-11 20:16:38,028 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 65 transitions, 870 flow [2021-03-11 20:16:38,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 98.11111111111111) internal successors, (883), 9 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:38,028 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:38,028 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:38,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-11 20:16:38,028 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:38,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:38,028 INFO L82 PathProgramCache]: Analyzing trace with hash 96642438, now seen corresponding path program 4 times [2021-03-11 20:16:38,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:38,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815587215] [2021-03-11 20:16:38,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:38,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:38,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:16:38,095 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-03-11 20:16:38,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:16:38,103 INFO L142 QuantifierPusher]: treesize reduction 21, result has 40.0 percent of original size [2021-03-11 20:16:38,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:16:38,112 INFO L142 QuantifierPusher]: treesize reduction 26, result has 50.9 percent of original size [2021-03-11 20:16:38,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:38,136 INFO L142 QuantifierPusher]: treesize reduction 29, result has 68.8 percent of original size [2021-03-11 20:16:38,137 INFO L147 QuantifierPusher]: treesize reduction 9, result has 85.9 percent of original size 55 [2021-03-11 20:16:38,175 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 20:16:38,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:38,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:38,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815587215] [2021-03-11 20:16:38,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:38,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 20:16:38,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596516836] [2021-03-11 20:16:38,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 20:16:38,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:38,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 20:16:38,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-11 20:16:38,199 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 159 [2021-03-11 20:16:38,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 65 transitions, 870 flow. Second operand has 8 states, 8 states have (on average 96.25) internal successors, (770), 8 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:38,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:38,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 159 [2021-03-11 20:16:38,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:38,453 INFO L129 PetriNetUnfolder]: 67/206 cut-off events. [2021-03-11 20:16:38,454 INFO L130 PetriNetUnfolder]: For 2323/2340 co-relation queries the response was YES. [2021-03-11 20:16:38,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1457 conditions, 206 events. 67/206 cut-off events. For 2323/2340 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1067 event pairs, 5 based on Foata normal form. 6/211 useless extension candidates. Maximal degree in co-relation 1414. Up to 77 conditions per place. [2021-03-11 20:16:38,455 INFO L132 encePairwiseOnDemand]: 150/159 looper letters, 38 selfloop transitions, 25 changer transitions 7/79 dead transitions. [2021-03-11 20:16:38,455 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 79 transitions, 1196 flow [2021-03-11 20:16:38,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 20:16:38,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 20:16:38,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 790 transitions. [2021-03-11 20:16:38,456 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6210691823899371 [2021-03-11 20:16:38,457 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 790 transitions. [2021-03-11 20:16:38,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 790 transitions. [2021-03-11 20:16:38,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:38,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 790 transitions. [2021-03-11 20:16:38,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 98.75) internal successors, (790), 8 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:38,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:38,459 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:38,459 INFO L185 Difference]: Start difference. First operand has 90 places, 65 transitions, 870 flow. Second operand 8 states and 790 transitions. [2021-03-11 20:16:38,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 79 transitions, 1196 flow [2021-03-11 20:16:38,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 79 transitions, 1162 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-03-11 20:16:38,466 INFO L241 Difference]: Finished difference. Result has 94 places, 69 transitions, 971 flow [2021-03-11 20:16:38,466 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=971, PETRI_PLACES=94, PETRI_TRANSITIONS=69} [2021-03-11 20:16:38,466 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 67 predicate places. [2021-03-11 20:16:38,466 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 69 transitions, 971 flow [2021-03-11 20:16:38,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 96.25) internal successors, (770), 8 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:38,467 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:38,467 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:38,467 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-11 20:16:38,467 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:38,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:38,467 INFO L82 PathProgramCache]: Analyzing trace with hash 332995028, now seen corresponding path program 5 times [2021-03-11 20:16:38,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:38,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339012159] [2021-03-11 20:16:38,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:38,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:38,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:16:38,510 INFO L142 QuantifierPusher]: treesize reduction 2, result has 88.9 percent of original size [2021-03-11 20:16:38,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 20:16:38,518 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 20:16:38,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 20:16:38,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:38,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:16:38,529 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 20:16:38,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:38,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:38,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339012159] [2021-03-11 20:16:38,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:38,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 20:16:38,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732099153] [2021-03-11 20:16:38,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 20:16:38,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:38,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 20:16:38,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-11 20:16:38,569 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 159 [2021-03-11 20:16:38,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 69 transitions, 971 flow. Second operand has 7 states, 7 states have (on average 105.28571428571429) internal successors, (737), 7 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:38,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:38,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 159 [2021-03-11 20:16:38,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:38,707 INFO L129 PetriNetUnfolder]: 61/203 cut-off events. [2021-03-11 20:16:38,707 INFO L130 PetriNetUnfolder]: For 2862/2887 co-relation queries the response was YES. [2021-03-11 20:16:38,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1539 conditions, 203 events. 61/203 cut-off events. For 2862/2887 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1097 event pairs, 6 based on Foata normal form. 8/209 useless extension candidates. Maximal degree in co-relation 1495. Up to 60 conditions per place. [2021-03-11 20:16:38,708 INFO L132 encePairwiseOnDemand]: 153/159 looper letters, 35 selfloop transitions, 13 changer transitions 30/89 dead transitions. [2021-03-11 20:16:38,708 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 89 transitions, 1463 flow [2021-03-11 20:16:38,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 20:16:38,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-11 20:16:38,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 646 transitions. [2021-03-11 20:16:38,710 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6771488469601677 [2021-03-11 20:16:38,710 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 646 transitions. [2021-03-11 20:16:38,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 646 transitions. [2021-03-11 20:16:38,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:38,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 646 transitions. [2021-03-11 20:16:38,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.66666666666667) internal successors, (646), 6 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:38,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:38,711 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:38,711 INFO L185 Difference]: Start difference. First operand has 94 places, 69 transitions, 971 flow. Second operand 6 states and 646 transitions. [2021-03-11 20:16:38,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 89 transitions, 1463 flow [2021-03-11 20:16:38,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 89 transitions, 1393 flow, removed 17 selfloop flow, removed 6 redundant places. [2021-03-11 20:16:38,720 INFO L241 Difference]: Finished difference. Result has 95 places, 57 transitions, 824 flow [2021-03-11 20:16:38,720 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=824, PETRI_PLACES=95, PETRI_TRANSITIONS=57} [2021-03-11 20:16:38,721 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 68 predicate places. [2021-03-11 20:16:38,721 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 57 transitions, 824 flow [2021-03-11 20:16:38,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 105.28571428571429) internal successors, (737), 7 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:38,721 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:38,721 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:38,721 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-11 20:16:38,721 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:38,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:38,722 INFO L82 PathProgramCache]: Analyzing trace with hash 886448944, now seen corresponding path program 1 times [2021-03-11 20:16:38,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:38,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637599453] [2021-03-11 20:16:38,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:38,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:38,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:16:38,789 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-03-11 20:16:38,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 20:16:38,799 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.9 percent of original size [2021-03-11 20:16:38,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:16:38,815 INFO L142 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-03-11 20:16:38,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-11 20:16:38,856 INFO L142 QuantifierPusher]: treesize reduction 52, result has 69.0 percent of original size [2021-03-11 20:16:38,860 INFO L147 QuantifierPusher]: treesize reduction 5, result has 95.7 percent of original size 111 [2021-03-11 20:16:38,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:38,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:16:38,908 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 20:16:38,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:38,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637599453] [2021-03-11 20:16:38,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:38,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 20:16:38,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864825868] [2021-03-11 20:16:38,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 20:16:38,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:38,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 20:16:38,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-11 20:16:38,926 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 159 [2021-03-11 20:16:38,927 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 57 transitions, 824 flow. Second operand has 9 states, 9 states have (on average 96.22222222222223) internal successors, (866), 9 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:38,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:38,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 159 [2021-03-11 20:16:38,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:39,290 INFO L129 PetriNetUnfolder]: 34/125 cut-off events. [2021-03-11 20:16:39,290 INFO L130 PetriNetUnfolder]: For 2249/2277 co-relation queries the response was YES. [2021-03-11 20:16:39,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1000 conditions, 125 events. 34/125 cut-off events. For 2249/2277 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 536 event pairs, 3 based on Foata normal form. 11/136 useless extension candidates. Maximal degree in co-relation 955. Up to 36 conditions per place. [2021-03-11 20:16:39,291 INFO L132 encePairwiseOnDemand]: 148/159 looper letters, 18 selfloop transitions, 35 changer transitions 16/78 dead transitions. [2021-03-11 20:16:39,291 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 78 transitions, 1337 flow [2021-03-11 20:16:39,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 20:16:39,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 20:16:39,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1176 transitions. [2021-03-11 20:16:39,293 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6163522012578616 [2021-03-11 20:16:39,293 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1176 transitions. [2021-03-11 20:16:39,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1176 transitions. [2021-03-11 20:16:39,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:39,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1176 transitions. [2021-03-11 20:16:39,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:39,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 159.0) internal successors, (2067), 13 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:39,296 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 159.0) internal successors, (2067), 13 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:39,296 INFO L185 Difference]: Start difference. First operand has 95 places, 57 transitions, 824 flow. Second operand 12 states and 1176 transitions. [2021-03-11 20:16:39,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 78 transitions, 1337 flow [2021-03-11 20:16:39,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 78 transitions, 1203 flow, removed 22 selfloop flow, removed 12 redundant places. [2021-03-11 20:16:39,303 INFO L241 Difference]: Finished difference. Result has 95 places, 61 transitions, 946 flow [2021-03-11 20:16:39,303 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=946, PETRI_PLACES=95, PETRI_TRANSITIONS=61} [2021-03-11 20:16:39,303 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 68 predicate places. [2021-03-11 20:16:39,303 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 61 transitions, 946 flow [2021-03-11 20:16:39,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 96.22222222222223) internal successors, (866), 9 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:39,304 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:39,304 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:39,304 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-11 20:16:39,304 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:39,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:39,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1668673268, now seen corresponding path program 2 times [2021-03-11 20:16:39,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:39,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721854469] [2021-03-11 20:16:39,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:39,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:39,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 20:16:39,377 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-03-11 20:16:39,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 20:16:39,386 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-03-11 20:16:39,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 20:16:39,389 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-03-11 20:16:39,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:16:39,415 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.8 percent of original size [2021-03-11 20:16:39,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 20:16:39,460 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.9 percent of original size [2021-03-11 20:16:39,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-11 20:16:39,503 INFO L142 QuantifierPusher]: treesize reduction 7, result has 81.6 percent of original size [2021-03-11 20:16:39,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:16:39,532 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 20:16:39,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:39,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:39,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721854469] [2021-03-11 20:16:39,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:39,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 20:16:39,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131414904] [2021-03-11 20:16:39,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 20:16:39,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:39,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 20:16:39,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-11 20:16:39,551 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 159 [2021-03-11 20:16:39,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 61 transitions, 946 flow. Second operand has 9 states, 9 states have (on average 93.22222222222223) internal successors, (839), 9 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:39,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:39,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 159 [2021-03-11 20:16:39,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:39,856 INFO L129 PetriNetUnfolder]: 29/97 cut-off events. [2021-03-11 20:16:39,856 INFO L130 PetriNetUnfolder]: For 1353/1364 co-relation queries the response was YES. [2021-03-11 20:16:39,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 792 conditions, 97 events. 29/97 cut-off events. For 1353/1364 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 335 event pairs, 3 based on Foata normal form. 6/103 useless extension candidates. Maximal degree in co-relation 758. Up to 32 conditions per place. [2021-03-11 20:16:39,857 INFO L132 encePairwiseOnDemand]: 150/159 looper letters, 16 selfloop transitions, 24 changer transitions 15/64 dead transitions. [2021-03-11 20:16:39,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 64 transitions, 1109 flow [2021-03-11 20:16:39,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 20:16:39,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 20:16:39,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 849 transitions. [2021-03-11 20:16:39,864 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5932914046121593 [2021-03-11 20:16:39,864 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 849 transitions. [2021-03-11 20:16:39,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 849 transitions. [2021-03-11 20:16:39,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:39,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 849 transitions. [2021-03-11 20:16:39,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 94.33333333333333) internal successors, (849), 9 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:39,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:39,867 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:39,867 INFO L185 Difference]: Start difference. First operand has 95 places, 61 transitions, 946 flow. Second operand 9 states and 849 transitions. [2021-03-11 20:16:39,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 64 transitions, 1109 flow [2021-03-11 20:16:39,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 64 transitions, 979 flow, removed 34 selfloop flow, removed 12 redundant places. [2021-03-11 20:16:39,872 INFO L241 Difference]: Finished difference. Result has 88 places, 47 transitions, 649 flow [2021-03-11 20:16:39,873 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=649, PETRI_PLACES=88, PETRI_TRANSITIONS=47} [2021-03-11 20:16:39,873 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 61 predicate places. [2021-03-11 20:16:39,873 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 47 transitions, 649 flow [2021-03-11 20:16:39,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 93.22222222222223) internal successors, (839), 9 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:39,873 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:39,873 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:39,873 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-11 20:16:39,873 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:39,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:39,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1138601524, now seen corresponding path program 3 times [2021-03-11 20:16:39,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:39,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076438262] [2021-03-11 20:16:39,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:39,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:39,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:16:39,933 INFO L142 QuantifierPusher]: treesize reduction 12, result has 63.6 percent of original size [2021-03-11 20:16:39,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 20:16:39,947 INFO L142 QuantifierPusher]: treesize reduction 7, result has 74.1 percent of original size [2021-03-11 20:16:39,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:16:39,958 INFO L142 QuantifierPusher]: treesize reduction 7, result has 70.8 percent of original size [2021-03-11 20:16:39,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:16:39,968 INFO L142 QuantifierPusher]: treesize reduction 12, result has 66.7 percent of original size [2021-03-11 20:16:39,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 20:16:39,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:39,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:16:39,990 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-11 20:16:39,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 20:16:40,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:40,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076438262] [2021-03-11 20:16:40,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:40,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 20:16:40,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279097342] [2021-03-11 20:16:40,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 20:16:40,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:40,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 20:16:40,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-11 20:16:40,004 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 159 [2021-03-11 20:16:40,004 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 47 transitions, 649 flow. Second operand has 9 states, 9 states have (on average 98.22222222222223) internal successors, (884), 9 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:40,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:40,004 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 159 [2021-03-11 20:16:40,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:40,212 INFO L129 PetriNetUnfolder]: 21/85 cut-off events. [2021-03-11 20:16:40,212 INFO L130 PetriNetUnfolder]: For 1027/1038 co-relation queries the response was YES. [2021-03-11 20:16:40,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 85 events. 21/85 cut-off events. For 1027/1038 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 299 event pairs, 4 based on Foata normal form. 3/88 useless extension candidates. Maximal degree in co-relation 603. Up to 35 conditions per place. [2021-03-11 20:16:40,213 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 20 selfloop transitions, 19 changer transitions 5/53 dead transitions. [2021-03-11 20:16:40,213 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 53 transitions, 839 flow [2021-03-11 20:16:40,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 20:16:40,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 20:16:40,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 897 transitions. [2021-03-11 20:16:40,222 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6268343815513627 [2021-03-11 20:16:40,222 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 897 transitions. [2021-03-11 20:16:40,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 897 transitions. [2021-03-11 20:16:40,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:40,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 897 transitions. [2021-03-11 20:16:40,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 99.66666666666667) internal successors, (897), 9 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:40,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:40,227 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:40,227 INFO L185 Difference]: Start difference. First operand has 88 places, 47 transitions, 649 flow. Second operand 9 states and 897 transitions. [2021-03-11 20:16:40,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 53 transitions, 839 flow [2021-03-11 20:16:40,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 53 transitions, 723 flow, removed 9 selfloop flow, removed 12 redundant places. [2021-03-11 20:16:40,231 INFO L241 Difference]: Finished difference. Result has 85 places, 48 transitions, 633 flow [2021-03-11 20:16:40,231 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=633, PETRI_PLACES=85, PETRI_TRANSITIONS=48} [2021-03-11 20:16:40,231 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 58 predicate places. [2021-03-11 20:16:40,231 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 48 transitions, 633 flow [2021-03-11 20:16:40,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 98.22222222222223) internal successors, (884), 9 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:40,231 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:40,232 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:40,232 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-11 20:16:40,232 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:40,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:40,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1967411652, now seen corresponding path program 4 times [2021-03-11 20:16:40,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:40,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717510242] [2021-03-11 20:16:40,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:40,296 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-11 20:16:40,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 20:16:40,302 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-03-11 20:16:40,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:16:40,322 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.0 percent of original size [2021-03-11 20:16:40,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:16:40,335 INFO L142 QuantifierPusher]: treesize reduction 13, result has 72.3 percent of original size [2021-03-11 20:16:40,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:16:40,357 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-11 20:16:40,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:16:40,376 INFO L142 QuantifierPusher]: treesize reduction 6, result has 89.1 percent of original size [2021-03-11 20:16:40,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 20:16:40,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:40,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 20:16:40,434 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 20:16:40,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:16:40,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:40,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717510242] [2021-03-11 20:16:40,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:40,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 20:16:40,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554401773] [2021-03-11 20:16:40,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 20:16:40,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:40,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 20:16:40,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-03-11 20:16:40,455 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 159 [2021-03-11 20:16:40,456 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 48 transitions, 633 flow. Second operand has 10 states, 10 states have (on average 83.2) internal successors, (832), 10 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:40,456 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:40,456 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 159 [2021-03-11 20:16:40,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:40,701 INFO L129 PetriNetUnfolder]: 54/149 cut-off events. [2021-03-11 20:16:40,701 INFO L130 PetriNetUnfolder]: For 1414/1420 co-relation queries the response was YES. [2021-03-11 20:16:40,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 963 conditions, 149 events. 54/149 cut-off events. For 1414/1420 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 535 event pairs, 12 based on Foata normal form. 4/151 useless extension candidates. Maximal degree in co-relation 933. Up to 69 conditions per place. [2021-03-11 20:16:40,702 INFO L132 encePairwiseOnDemand]: 149/159 looper letters, 29 selfloop transitions, 14 changer transitions 23/70 dead transitions. [2021-03-11 20:16:40,702 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 70 transitions, 933 flow [2021-03-11 20:16:40,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 20:16:40,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 20:16:40,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 944 transitions. [2021-03-11 20:16:40,704 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5397369925671812 [2021-03-11 20:16:40,704 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 944 transitions. [2021-03-11 20:16:40,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 944 transitions. [2021-03-11 20:16:40,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:40,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 944 transitions. [2021-03-11 20:16:40,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 85.81818181818181) internal successors, (944), 11 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:40,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 159.0) internal successors, (1908), 12 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:40,709 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 159.0) internal successors, (1908), 12 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:40,709 INFO L185 Difference]: Start difference. First operand has 85 places, 48 transitions, 633 flow. Second operand 11 states and 944 transitions. [2021-03-11 20:16:40,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 70 transitions, 933 flow [2021-03-11 20:16:40,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 70 transitions, 873 flow, removed 16 selfloop flow, removed 8 redundant places. [2021-03-11 20:16:40,714 INFO L241 Difference]: Finished difference. Result has 92 places, 43 transitions, 576 flow [2021-03-11 20:16:40,714 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=576, PETRI_PLACES=92, PETRI_TRANSITIONS=43} [2021-03-11 20:16:40,714 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 65 predicate places. [2021-03-11 20:16:40,714 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 43 transitions, 576 flow [2021-03-11 20:16:40,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 83.2) internal successors, (832), 10 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:40,714 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:40,714 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:40,715 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-11 20:16:40,715 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:40,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:40,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1058887598, now seen corresponding path program 5 times [2021-03-11 20:16:40,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:40,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259682401] [2021-03-11 20:16:40,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:40,773 INFO L142 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-03-11 20:16:40,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:16:40,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:40,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 20:16:40,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:40,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:16:40,797 INFO L142 QuantifierPusher]: treesize reduction 12, result has 82.6 percent of original size [2021-03-11 20:16:40,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 20:16:40,820 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-03-11 20:16:40,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:16:40,831 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.8 percent of original size [2021-03-11 20:16:40,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:16:40,854 INFO L142 QuantifierPusher]: treesize reduction 7, result has 77.4 percent of original size [2021-03-11 20:16:40,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 20:16:40,873 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.9 percent of original size [2021-03-11 20:16:40,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:16:40,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:40,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 20:16:40,925 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-11 20:16:40,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 20:16:40,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:40,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259682401] [2021-03-11 20:16:40,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:40,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 20:16:40,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374555529] [2021-03-11 20:16:40,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 20:16:40,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:40,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 20:16:40,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-03-11 20:16:40,940 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 159 [2021-03-11 20:16:40,941 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 43 transitions, 576 flow. Second operand has 12 states, 12 states have (on average 80.0) internal successors, (960), 12 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:40,941 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:40,941 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 159 [2021-03-11 20:16:40,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:41,176 INFO L129 PetriNetUnfolder]: 48/134 cut-off events. [2021-03-11 20:16:41,177 INFO L130 PetriNetUnfolder]: For 1511/1513 co-relation queries the response was YES. [2021-03-11 20:16:41,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 939 conditions, 134 events. 48/134 cut-off events. For 1511/1513 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 442 event pairs, 9 based on Foata normal form. 6/140 useless extension candidates. Maximal degree in co-relation 906. Up to 67 conditions per place. [2021-03-11 20:16:41,178 INFO L132 encePairwiseOnDemand]: 148/159 looper letters, 32 selfloop transitions, 18 changer transitions 15/69 dead transitions. [2021-03-11 20:16:41,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 69 transitions, 939 flow [2021-03-11 20:16:41,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 20:16:41,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 20:16:41,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 834 transitions. [2021-03-11 20:16:41,180 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5245283018867924 [2021-03-11 20:16:41,180 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 834 transitions. [2021-03-11 20:16:41,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 834 transitions. [2021-03-11 20:16:41,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:41,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 834 transitions. [2021-03-11 20:16:41,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 83.4) internal successors, (834), 10 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:41,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:41,184 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 159.0) internal successors, (1749), 11 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:41,184 INFO L185 Difference]: Start difference. First operand has 92 places, 43 transitions, 576 flow. Second operand 10 states and 834 transitions. [2021-03-11 20:16:41,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 69 transitions, 939 flow [2021-03-11 20:16:41,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 69 transitions, 784 flow, removed 20 selfloop flow, removed 17 redundant places. [2021-03-11 20:16:41,189 INFO L241 Difference]: Finished difference. Result has 81 places, 48 transitions, 575 flow [2021-03-11 20:16:41,189 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=575, PETRI_PLACES=81, PETRI_TRANSITIONS=48} [2021-03-11 20:16:41,189 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 54 predicate places. [2021-03-11 20:16:41,189 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 48 transitions, 575 flow [2021-03-11 20:16:41,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 80.0) internal successors, (960), 12 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:41,190 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:41,190 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:41,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-11 20:16:41,190 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:41,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:41,190 INFO L82 PathProgramCache]: Analyzing trace with hash 617032432, now seen corresponding path program 6 times [2021-03-11 20:16:41,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:41,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795716995] [2021-03-11 20:16:41,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:41,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:41,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:16:41,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:41,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 20:16:41,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:41,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 20:16:41,273 INFO L142 QuantifierPusher]: treesize reduction 11, result has 82.8 percent of original size [2021-03-11 20:16:41,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:16:41,309 INFO L142 QuantifierPusher]: treesize reduction 11, result has 81.0 percent of original size [2021-03-11 20:16:41,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 20:16:41,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:41,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:16:41,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:41,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:16:41,368 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-11 20:16:41,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 20:16:41,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:41,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795716995] [2021-03-11 20:16:41,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:41,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 20:16:41,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302781290] [2021-03-11 20:16:41,382 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 20:16:41,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:41,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 20:16:41,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-11 20:16:41,383 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 159 [2021-03-11 20:16:41,384 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 48 transitions, 575 flow. Second operand has 9 states, 9 states have (on average 91.22222222222223) internal successors, (821), 9 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:41,384 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:41,384 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 159 [2021-03-11 20:16:41,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:41,650 INFO L129 PetriNetUnfolder]: 20/81 cut-off events. [2021-03-11 20:16:41,650 INFO L130 PetriNetUnfolder]: For 691/700 co-relation queries the response was YES. [2021-03-11 20:16:41,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 81 events. 20/81 cut-off events. For 691/700 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 264 event pairs, 6 based on Foata normal form. 5/86 useless extension candidates. Maximal degree in co-relation 530. Up to 24 conditions per place. [2021-03-11 20:16:41,651 INFO L132 encePairwiseOnDemand]: 152/159 looper letters, 15 selfloop transitions, 11 changer transitions 14/49 dead transitions. [2021-03-11 20:16:41,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 49 transitions, 675 flow [2021-03-11 20:16:41,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 20:16:41,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 20:16:41,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 829 transitions. [2021-03-11 20:16:41,652 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5793151642208246 [2021-03-11 20:16:41,652 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 829 transitions. [2021-03-11 20:16:41,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 829 transitions. [2021-03-11 20:16:41,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:41,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 829 transitions. [2021-03-11 20:16:41,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 92.11111111111111) internal successors, (829), 9 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:41,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:41,655 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:41,655 INFO L185 Difference]: Start difference. First operand has 81 places, 48 transitions, 575 flow. Second operand 9 states and 829 transitions. [2021-03-11 20:16:41,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 49 transitions, 675 flow [2021-03-11 20:16:41,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 49 transitions, 631 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-03-11 20:16:41,658 INFO L241 Difference]: Finished difference. Result has 85 places, 35 transitions, 400 flow [2021-03-11 20:16:41,658 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=400, PETRI_PLACES=85, PETRI_TRANSITIONS=35} [2021-03-11 20:16:41,658 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 58 predicate places. [2021-03-11 20:16:41,658 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 35 transitions, 400 flow [2021-03-11 20:16:41,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 91.22222222222223) internal successors, (821), 9 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:41,658 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:16:41,658 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:16:41,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-11 20:16:41,658 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:16:41,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:16:41,659 INFO L82 PathProgramCache]: Analyzing trace with hash -975980510, now seen corresponding path program 7 times [2021-03-11 20:16:41,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:16:41,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053477239] [2021-03-11 20:16:41,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:16:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:16:41,694 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-11 20:16:41,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 20:16:41,700 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-03-11 20:16:41,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 20:16:41,710 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-03-11 20:16:41,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 20:16:41,720 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-03-11 20:16:41,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:16:41,729 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size [2021-03-11 20:16:41,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 20:16:41,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:16:41,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 20:16:41,752 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-11 20:16:41,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 20:16:41,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:16:41,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053477239] [2021-03-11 20:16:41,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:16:41,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 20:16:41,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435487342] [2021-03-11 20:16:41,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 20:16:41,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:16:41,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 20:16:41,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-11 20:16:41,764 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 159 [2021-03-11 20:16:41,764 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 35 transitions, 400 flow. Second operand has 9 states, 9 states have (on average 91.22222222222223) internal successors, (821), 9 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:41,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:16:41,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 159 [2021-03-11 20:16:41,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:16:41,894 INFO L129 PetriNetUnfolder]: 16/61 cut-off events. [2021-03-11 20:16:41,894 INFO L130 PetriNetUnfolder]: For 575/575 co-relation queries the response was YES. [2021-03-11 20:16:41,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 61 events. 16/61 cut-off events. For 575/575 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 143 event pairs, 0 based on Foata normal form. 4/65 useless extension candidates. Maximal degree in co-relation 372. Up to 18 conditions per place. [2021-03-11 20:16:41,894 INFO L132 encePairwiseOnDemand]: 152/159 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2021-03-11 20:16:41,894 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 44 transitions, 560 flow [2021-03-11 20:16:41,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 20:16:41,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 20:16:41,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 744 transitions. [2021-03-11 20:16:41,896 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5849056603773585 [2021-03-11 20:16:41,896 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 744 transitions. [2021-03-11 20:16:41,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 744 transitions. [2021-03-11 20:16:41,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:16:41,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 744 transitions. [2021-03-11 20:16:41,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 93.0) internal successors, (744), 8 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:41,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:41,898 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:41,898 INFO L185 Difference]: Start difference. First operand has 85 places, 35 transitions, 400 flow. Second operand 8 states and 744 transitions. [2021-03-11 20:16:41,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 44 transitions, 560 flow [2021-03-11 20:16:41,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 44 transitions, 403 flow, removed 20 selfloop flow, removed 20 redundant places. [2021-03-11 20:16:41,900 INFO L241 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2021-03-11 20:16:41,900 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0} [2021-03-11 20:16:41,900 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 40 predicate places. [2021-03-11 20:16:41,900 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 0 transitions, 0 flow [2021-03-11 20:16:41,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 91.22222222222223) internal successors, (821), 9 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:16:41,900 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-11 20:16:41,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 08:16:41 BasicIcfg [2021-03-11 20:16:41,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 20:16:41,903 INFO L168 Benchmark]: Toolchain (without parser) took 19545.90 ms. Allocated memory was 255.9 MB in the beginning and 685.8 MB in the end (delta: 429.9 MB). Free memory was 234.8 MB in the beginning and 544.8 MB in the end (delta: -310.0 MB). Peak memory consumption was 118.6 MB. Max. memory is 16.0 GB. [2021-03-11 20:16:41,903 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 20:16:41,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.35 ms. Allocated memory was 255.9 MB in the beginning and 364.9 MB in the end (delta: 109.1 MB). Free memory was 234.2 MB in the beginning and 322.0 MB in the end (delta: -87.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-11 20:16:41,904 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.99 ms. Allocated memory is still 364.9 MB. Free memory was 322.0 MB in the beginning and 319.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 20:16:41,904 INFO L168 Benchmark]: Boogie Preprocessor took 23.72 ms. Allocated memory is still 364.9 MB. Free memory was 319.2 MB in the beginning and 315.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-11 20:16:41,904 INFO L168 Benchmark]: RCFGBuilder took 2596.91 ms. Allocated memory was 364.9 MB in the beginning and 438.3 MB in the end (delta: 73.4 MB). Free memory was 315.7 MB in the beginning and 354.3 MB in the end (delta: -38.6 MB). Peak memory consumption was 142.1 MB. Max. memory is 16.0 GB. [2021-03-11 20:16:41,904 INFO L168 Benchmark]: TraceAbstraction took 16509.46 ms. Allocated memory was 438.3 MB in the beginning and 685.8 MB in the end (delta: 247.5 MB). Free memory was 354.3 MB in the beginning and 544.8 MB in the end (delta: -190.5 MB). Peak memory consumption was 55.9 MB. Max. memory is 16.0 GB. [2021-03-11 20:16:41,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 374.35 ms. Allocated memory was 255.9 MB in the beginning and 364.9 MB in the end (delta: 109.1 MB). Free memory was 234.2 MB in the beginning and 322.0 MB in the end (delta: -87.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 34.99 ms. Allocated memory is still 364.9 MB. Free memory was 322.0 MB in the beginning and 319.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 23.72 ms. Allocated memory is still 364.9 MB. Free memory was 319.2 MB in the beginning and 315.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 2596.91 ms. Allocated memory was 364.9 MB in the beginning and 438.3 MB in the end (delta: 73.4 MB). Free memory was 315.7 MB in the beginning and 354.3 MB in the end (delta: -38.6 MB). Peak memory consumption was 142.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 16509.46 ms. Allocated memory was 438.3 MB in the beginning and 685.8 MB in the end (delta: 247.5 MB). Free memory was 354.3 MB in the beginning and 544.8 MB in the end (delta: -190.5 MB). Peak memory consumption was 55.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6412.1ms, 88 PlacesBefore, 27 PlacesAfterwards, 83 TransitionsBefore, 21 TransitionsAfterwards, 1124 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 2940 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1226, positive: 1096, positive conditional: 0, positive unconditional: 1096, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 710, positive: 676, positive conditional: 0, positive unconditional: 676, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 710, positive: 665, positive conditional: 0, positive unconditional: 665, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 904, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 869, negative conditional: 0, negative unconditional: 869, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1226, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 710, unknown conditional: 0, unknown unconditional: 710] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 40, Positive conditional cache size: 0, Positive unconditional cache size: 40, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 16368.8ms, OverallIterations: 24, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 5813.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6486.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 145 SDtfs, 189 SDslu, 276 SDs, 0 SdLazy, 2008 SolverSat, 403 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2279.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 3932.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=971occurred in iteration=16, InterpolantAutomatonStates: 204, 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: 67.3ms SsaConstructionTime, 562.2ms SatisfiabilityAnalysisTime, 3194.4ms InterpolantComputationTime, 334 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 3911 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...