/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix037_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 20:21:29,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 20:21:29,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 20:21:29,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 20:21:29,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 20:21:29,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 20:21:29,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 20:21:29,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 20:21:29,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 20:21:29,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 20:21:29,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 20:21:29,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 20:21:29,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 20:21:29,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 20:21:29,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 20:21:29,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 20:21:29,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 20:21:29,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 20:21:29,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 20:21:29,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 20:21:29,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 20:21:29,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 20:21:29,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 20:21:29,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 20:21:29,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 20:21:29,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 20:21:29,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 20:21:29,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 20:21:29,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 20:21:29,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 20:21:29,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 20:21:29,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 20:21:29,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 20:21:29,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 20:21:29,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 20:21:29,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 20:21:29,891 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 20:21:29,920 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 20:21:29,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 20:21:29,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 20:21:29,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 20:21:29,923 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 20:21:29,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 20:21:29,923 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 20:21:29,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 20:21:29,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 20:21:29,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 20:21:29,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 20:21:29,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 20:21:29,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 20:21:29,925 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 20:21:29,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 20:21:29,925 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 20:21:29,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 20:21:29,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 20:21:29,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 20:21:29,926 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 20:21:29,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 20:21:29,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 20:21:29,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 20:21:29,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 20:21:29,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 20:21:29,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 20:21:29,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 20:21:29,928 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 20:21:29,928 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 20:21:29,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 20:21:29,928 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 20:21:30,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 20:21:30,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 20:21:30,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 20:21:30,328 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 20:21:30,329 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 20:21:30,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix037_rmo.opt.i [2021-04-28 20:21:30,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ee159dbf/4310e66575a0420887e9453034afdabe/FLAG4fa54a3e0 [2021-04-28 20:21:31,247 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 20:21:31,248 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix037_rmo.opt.i [2021-04-28 20:21:31,268 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ee159dbf/4310e66575a0420887e9453034afdabe/FLAG4fa54a3e0 [2021-04-28 20:21:31,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ee159dbf/4310e66575a0420887e9453034afdabe [2021-04-28 20:21:31,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 20:21:31,500 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 20:21:31,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 20:21:31,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 20:21:31,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 20:21:31,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 08:21:31" (1/1) ... [2021-04-28 20:21:31,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e6ea11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:21:31, skipping insertion in model container [2021-04-28 20:21:31,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 08:21:31" (1/1) ... [2021-04-28 20:21:31,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 20:21:31,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 20:21:31,772 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/mix037_rmo.opt.i[948,961] [2021-04-28 20:21:31,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 20:21:31,995 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 20:21:32,010 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/mix037_rmo.opt.i[948,961] [2021-04-28 20:21:32,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 20:21:32,219 INFO L208 MainTranslator]: Completed translation [2021-04-28 20:21:32,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:21:32 WrapperNode [2021-04-28 20:21:32,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 20:21:32,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 20:21:32,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 20:21:32,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 20:21:32,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:21:32" (1/1) ... [2021-04-28 20:21:32,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:21:32" (1/1) ... [2021-04-28 20:21:32,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 20:21:32,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 20:21:32,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 20:21:32,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 20:21:32,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:21:32" (1/1) ... [2021-04-28 20:21:32,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:21:32" (1/1) ... [2021-04-28 20:21:32,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:21:32" (1/1) ... [2021-04-28 20:21:32,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:21:32" (1/1) ... [2021-04-28 20:21:32,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:21:32" (1/1) ... [2021-04-28 20:21:32,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:21:32" (1/1) ... [2021-04-28 20:21:32,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:21:32" (1/1) ... [2021-04-28 20:21:32,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 20:21:32,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 20:21:32,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 20:21:32,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 20:21:32,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:21:32" (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 [2021-04-28 20:21:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 20:21:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 20:21:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 20:21:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 20:21:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 20:21:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 20:21:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 20:21:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 20:21:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 20:21:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 20:21:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 20:21:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 20:21:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 20:21:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 20:21:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 20:21:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 20:21:32,483 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 20:21:34,573 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 20:21:34,573 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 20:21:34,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 08:21:34 BoogieIcfgContainer [2021-04-28 20:21:34,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 20:21:34,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 20:21:34,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 20:21:34,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 20:21:34,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 08:21:31" (1/3) ... [2021-04-28 20:21:34,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cc05db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 08:21:34, skipping insertion in model container [2021-04-28 20:21:34,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:21:32" (2/3) ... [2021-04-28 20:21:34,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cc05db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 08:21:34, skipping insertion in model container [2021-04-28 20:21:34,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 08:21:34" (3/3) ... [2021-04-28 20:21:34,586 INFO L111 eAbstractionObserver]: Analyzing ICFG mix037_rmo.opt.i [2021-04-28 20:21:34,594 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 20:21:34,600 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 20:21:34,601 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 20:21:34,641 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,641 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,641 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,642 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,642 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,645 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,645 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,646 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,646 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,647 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,648 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,648 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,649 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,649 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,659 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,659 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,671 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,671 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,671 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,672 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,672 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,672 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,672 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,672 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,673 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,673 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,673 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,674 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,674 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,674 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,674 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,675 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,675 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,675 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,676 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,676 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,676 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,676 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,676 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,677 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,677 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,677 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,677 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,678 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,678 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,678 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,679 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,679 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,679 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,680 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,682 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,683 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,683 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,683 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,683 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,684 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,684 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,684 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,684 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,685 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,685 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,685 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,688 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,688 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,690 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,690 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,690 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,692 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,694 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,696 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,696 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,696 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,696 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,696 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,698 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:21:34,700 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 20:21:34,725 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 20:21:34,752 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 20:21:34,752 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 20:21:34,752 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 20:21:34,753 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 20:21:34,753 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 20:21:34,753 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 20:21:34,753 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 20:21:34,753 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 20:21:34,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 117 transitions, 254 flow [2021-04-28 20:21:34,825 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-04-28 20:21:34,826 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:21:34,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2021-04-28 20:21:34,838 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 117 transitions, 254 flow [2021-04-28 20:21:34,850 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 113 transitions, 238 flow [2021-04-28 20:21:34,852 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:21:34,869 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 113 transitions, 238 flow [2021-04-28 20:21:34,876 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 113 transitions, 238 flow [2021-04-28 20:21:34,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 238 flow [2021-04-28 20:21:34,918 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-04-28 20:21:34,918 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:21:34,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2021-04-28 20:21:34,924 INFO L146 LiptonReduction]: Number of co-enabled transitions 2488 [2021-04-28 20:21:38,805 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 20:21:38,909 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 20:21:39,509 WARN L205 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2021-04-28 20:21:39,755 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 20:21:48,240 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 20:21:50,468 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 20:21:57,843 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:21:58,421 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 20:21:58,725 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:21:58,833 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:21:58,942 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:21:59,050 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:21:59,374 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 20:21:59,504 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 20:21:59,632 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 20:21:59,761 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 20:22:00,324 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 20:22:01,186 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 20:22:01,308 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 20:22:01,429 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 20:22:01,551 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 20:22:03,067 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 20:22:04,309 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:22:04,444 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:22:04,578 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:22:04,714 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:22:04,838 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:22:04,963 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:22:05,087 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:22:05,209 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:22:05,653 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:22:05,836 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:22:05,985 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:22:06,130 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:22:06,284 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:22:06,437 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:22:06,589 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:22:06,744 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:22:06,855 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:22:06,971 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:22:07,080 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:22:07,188 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:22:07,317 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:22:07,457 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:22:07,598 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:22:07,735 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:22:07,863 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:22:07,989 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:22:08,121 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:22:08,247 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:22:08,363 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:22:08,479 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:22:08,594 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:22:08,706 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:22:08,864 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:22:08,991 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:22:09,122 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:22:09,250 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:22:09,402 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:22:09,552 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:22:09,705 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:22:09,861 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:22:10,263 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:22:11,276 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:22:11,386 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:22:11,495 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:22:11,635 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:22:12,113 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:22:12,235 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:22:12,357 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:22:12,479 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:22:12,982 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-28 20:22:13,148 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-28 20:22:13,311 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-28 20:22:13,474 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-28 20:22:13,583 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:22:13,691 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:22:13,801 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:22:13,910 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:22:14,015 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:22:14,118 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:22:14,223 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:22:14,326 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:22:14,848 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 20:22:15,001 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 20:22:15,153 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 20:22:15,305 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 20:22:15,447 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:22:15,590 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:22:15,737 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:22:15,886 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:22:16,057 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:22:16,230 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:22:16,400 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:22:16,578 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:22:16,989 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:22:17,103 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:22:17,217 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:22:17,328 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:22:17,452 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:22:17,582 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:22:17,716 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:22:17,846 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:22:18,013 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 20:22:18,178 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 20:22:18,343 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 20:22:18,528 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 20:22:18,778 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:18,999 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:19,220 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:19,436 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:19,637 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:22:19,832 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:22:20,033 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:22:20,226 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:22:20,438 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:22:20,653 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:22:20,874 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:22:21,096 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:22:21,278 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:22:21,460 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:22:21,641 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:22:21,821 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:22:22,050 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:22:22,261 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:22:22,477 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:22:22,685 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:22:23,254 WARN L205 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2021-04-28 20:22:23,523 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2021-04-28 20:22:24,097 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2021-04-28 20:22:24,361 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2021-04-28 20:22:24,586 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:24,808 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:25,030 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:25,250 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:25,453 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:22:25,644 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:22:25,839 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:22:26,034 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:22:26,584 WARN L205 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2021-04-28 20:22:26,842 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-04-28 20:22:27,376 WARN L205 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2021-04-28 20:22:27,629 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-04-28 20:22:28,149 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:28,374 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:28,603 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:28,831 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:29,064 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:29,285 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:29,508 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:29,737 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 20:22:29,847 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:22:29,961 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:22:30,077 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:22:30,195 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:22:30,402 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:22:30,605 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:22:30,812 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:22:31,015 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:22:31,069 INFO L158 LiptonReduction]: Checked pairs total: 26781 [2021-04-28 20:22:31,069 INFO L160 LiptonReduction]: Total number of compositions: 311 [2021-04-28 20:22:31,076 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 56226 [2021-04-28 20:22:31,114 INFO L129 PetriNetUnfolder]: 1/99 cut-off events. [2021-04-28 20:22:31,114 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:22:31,114 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:22:31,115 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:22:31,115 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:22:31,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:22:31,122 INFO L82 PathProgramCache]: Analyzing trace with hash 666831269, now seen corresponding path program 1 times [2021-04-28 20:22:31,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:22:31,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905722406] [2021-04-28 20:22:31,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:22:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:22:31,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:22:31,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 20:22:31,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:22:31,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905722406] [2021-04-28 20:22:31,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:22:31,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 20:22:31,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511856999] [2021-04-28 20:22:31,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:22:31,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:22:31,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:22:31,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:22:31,558 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 350 out of 428 [2021-04-28 20:22:31,564 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 145 transitions, 302 flow. Second operand has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:31,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:22:31,564 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 350 of 428 [2021-04-28 20:22:31,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:22:31,673 INFO L129 PetriNetUnfolder]: 17/189 cut-off events. [2021-04-28 20:22:31,674 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:22:31,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 189 events. 17/189 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 1150 event pairs, 1 based on Foata normal form. 19/78 useless extension candidates. Maximal degree in co-relation 168. Up to 33 conditions per place. [2021-04-28 20:22:31,678 INFO L132 encePairwiseOnDemand]: 412/428 looper letters, 5 selfloop transitions, 4 changer transitions 67/143 dead transitions. [2021-04-28 20:22:31,678 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 143 transitions, 334 flow [2021-04-28 20:22:31,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:22:31,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:22:31,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1074 transitions. [2021-04-28 20:22:31,700 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8364485981308412 [2021-04-28 20:22:31,701 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1074 transitions. [2021-04-28 20:22:31,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1074 transitions. [2021-04-28 20:22:31,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:22:31,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1074 transitions. [2021-04-28 20:22:31,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:31,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:31,739 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:31,740 INFO L185 Difference]: Start difference. First operand has 157 places, 145 transitions, 302 flow. Second operand 3 states and 1074 transitions. [2021-04-28 20:22:31,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 143 transitions, 334 flow [2021-04-28 20:22:31,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 143 transitions, 330 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 20:22:31,749 INFO L241 Difference]: Finished difference. Result has 152 places, 74 transitions, 164 flow [2021-04-28 20:22:31,751 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=152, PETRI_TRANSITIONS=74} [2021-04-28 20:22:31,752 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -5 predicate places. [2021-04-28 20:22:31,752 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:22:31,753 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 74 transitions, 164 flow [2021-04-28 20:22:31,753 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 74 transitions, 164 flow [2021-04-28 20:22:31,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 74 transitions, 164 flow [2021-04-28 20:22:31,766 INFO L129 PetriNetUnfolder]: 0/74 cut-off events. [2021-04-28 20:22:31,766 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:22:31,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 74 events. 0/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 349 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 20:22:31,769 INFO L146 LiptonReduction]: Number of co-enabled transitions 2848 [2021-04-28 20:22:32,698 INFO L158 LiptonReduction]: Checked pairs total: 3664 [2021-04-28 20:22:32,698 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:22:32,699 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 947 [2021-04-28 20:22:32,701 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 74 transitions, 164 flow [2021-04-28 20:22:32,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:32,703 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:22:32,703 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:22:32,703 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 20:22:32,703 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:22:32,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:22:32,704 INFO L82 PathProgramCache]: Analyzing trace with hash 874845689, now seen corresponding path program 1 times [2021-04-28 20:22:32,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:22:32,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844638509] [2021-04-28 20:22:32,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:22:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:22:32,796 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 20:22:32,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 20:22:32,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:22:32,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844638509] [2021-04-28 20:22:32,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:22:32,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 20:22:32,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93244648] [2021-04-28 20:22:32,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:22:32,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:22:32,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:22:32,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:22:32,819 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 428 [2021-04-28 20:22:32,820 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 74 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:32,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:22:32,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 428 [2021-04-28 20:22:32,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:22:34,462 INFO L129 PetriNetUnfolder]: 3488/8780 cut-off events. [2021-04-28 20:22:34,462 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:22:34,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13999 conditions, 8780 events. 3488/8780 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1379. Compared 103170 event pairs, 1186 based on Foata normal form. 0/5280 useless extension candidates. Maximal degree in co-relation 13990. Up to 3533 conditions per place. [2021-04-28 20:22:34,508 INFO L132 encePairwiseOnDemand]: 404/428 looper letters, 7 selfloop transitions, 7 changer transitions 50/104 dead transitions. [2021-04-28 20:22:34,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 104 transitions, 352 flow [2021-04-28 20:22:34,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:22:34,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:22:34,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 792 transitions. [2021-04-28 20:22:34,513 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.616822429906542 [2021-04-28 20:22:34,513 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 792 transitions. [2021-04-28 20:22:34,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 792 transitions. [2021-04-28 20:22:34,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:22:34,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 792 transitions. [2021-04-28 20:22:34,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:34,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:34,523 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:34,523 INFO L185 Difference]: Start difference. First operand has 85 places, 74 transitions, 164 flow. Second operand 3 states and 792 transitions. [2021-04-28 20:22:34,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 104 transitions, 352 flow [2021-04-28 20:22:34,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 104 transitions, 344 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 20:22:34,527 INFO L241 Difference]: Finished difference. Result has 87 places, 54 transitions, 158 flow [2021-04-28 20:22:34,527 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=87, PETRI_TRANSITIONS=54} [2021-04-28 20:22:34,528 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -70 predicate places. [2021-04-28 20:22:34,528 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:22:34,528 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 54 transitions, 158 flow [2021-04-28 20:22:34,529 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 54 transitions, 158 flow [2021-04-28 20:22:34,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 54 transitions, 158 flow [2021-04-28 20:22:34,609 INFO L129 PetriNetUnfolder]: 152/522 cut-off events. [2021-04-28 20:22:34,610 INFO L130 PetriNetUnfolder]: For 40/51 co-relation queries the response was YES. [2021-04-28 20:22:34,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 890 conditions, 522 events. 152/522 cut-off events. For 40/51 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3788 event pairs, 60 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 881. Up to 221 conditions per place. [2021-04-28 20:22:34,624 INFO L146 LiptonReduction]: Number of co-enabled transitions 1678 [2021-04-28 20:22:34,932 INFO L158 LiptonReduction]: Checked pairs total: 536 [2021-04-28 20:22:34,932 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:22:34,932 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 404 [2021-04-28 20:22:34,936 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 158 flow [2021-04-28 20:22:34,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:34,937 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:22:34,939 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:22:34,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 20:22:34,939 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:22:34,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:22:34,940 INFO L82 PathProgramCache]: Analyzing trace with hash 720422730, now seen corresponding path program 1 times [2021-04-28 20:22:34,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:22:34,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430737929] [2021-04-28 20:22:34,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:22:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:22:35,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:22:35,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:22:35,089 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 20:22:35,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 20:22:35,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:22:35,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430737929] [2021-04-28 20:22:35,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:22:35,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 20:22:35,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353534761] [2021-04-28 20:22:35,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 20:22:35,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:22:35,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 20:22:35,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 20:22:35,111 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 428 [2021-04-28 20:22:35,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 54 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 243.75) internal successors, (975), 4 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:35,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:22:35,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 428 [2021-04-28 20:22:35,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:22:35,239 INFO L129 PetriNetUnfolder]: 122/400 cut-off events. [2021-04-28 20:22:35,239 INFO L130 PetriNetUnfolder]: For 71/300 co-relation queries the response was YES. [2021-04-28 20:22:35,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 920 conditions, 400 events. 122/400 cut-off events. For 71/300 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2432 event pairs, 14 based on Foata normal form. 3/276 useless extension candidates. Maximal degree in co-relation 909. Up to 181 conditions per place. [2021-04-28 20:22:35,245 INFO L132 encePairwiseOnDemand]: 420/428 looper letters, 13 selfloop transitions, 8 changer transitions 0/61 dead transitions. [2021-04-28 20:22:35,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 61 transitions, 236 flow [2021-04-28 20:22:35,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 20:22:35,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 20:22:35,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 989 transitions. [2021-04-28 20:22:35,249 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5776869158878505 [2021-04-28 20:22:35,249 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 989 transitions. [2021-04-28 20:22:35,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 989 transitions. [2021-04-28 20:22:35,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:22:35,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 989 transitions. [2021-04-28 20:22:35,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 247.25) internal successors, (989), 4 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:35,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 428.0) internal successors, (2140), 5 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:35,259 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 428.0) internal successors, (2140), 5 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:35,260 INFO L185 Difference]: Start difference. First operand has 61 places, 54 transitions, 158 flow. Second operand 4 states and 989 transitions. [2021-04-28 20:22:35,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 61 transitions, 236 flow [2021-04-28 20:22:35,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 61 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 20:22:35,267 INFO L241 Difference]: Finished difference. Result has 65 places, 58 transitions, 202 flow [2021-04-28 20:22:35,268 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=65, PETRI_TRANSITIONS=58} [2021-04-28 20:22:35,268 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -92 predicate places. [2021-04-28 20:22:35,268 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:22:35,268 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 58 transitions, 202 flow [2021-04-28 20:22:35,270 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 58 transitions, 202 flow [2021-04-28 20:22:35,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 58 transitions, 202 flow [2021-04-28 20:22:35,338 INFO L129 PetriNetUnfolder]: 122/427 cut-off events. [2021-04-28 20:22:35,338 INFO L130 PetriNetUnfolder]: For 148/170 co-relation queries the response was YES. [2021-04-28 20:22:35,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 853 conditions, 427 events. 122/427 cut-off events. For 148/170 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2924 event pairs, 50 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 841. Up to 181 conditions per place. [2021-04-28 20:22:35,353 INFO L146 LiptonReduction]: Number of co-enabled transitions 1822 [2021-04-28 20:22:35,590 INFO L158 LiptonReduction]: Checked pairs total: 639 [2021-04-28 20:22:35,590 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:22:35,590 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 322 [2021-04-28 20:22:35,592 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 58 transitions, 202 flow [2021-04-28 20:22:35,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 243.75) internal successors, (975), 4 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:35,593 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:22:35,593 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:22:35,594 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 20:22:35,594 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:22:35,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:22:35,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1086971178, now seen corresponding path program 1 times [2021-04-28 20:22:35,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:22:35,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869922023] [2021-04-28 20:22:35,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:22:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:22:35,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:22:35,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:22:35,649 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 20:22:35,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 20:22:35,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:22:35,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869922023] [2021-04-28 20:22:35,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:22:35,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 20:22:35,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705963474] [2021-04-28 20:22:35,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 20:22:35,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:22:35,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 20:22:35,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 20:22:35,665 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 428 [2021-04-28 20:22:35,667 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 58 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 243.75) internal successors, (975), 4 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:35,667 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:22:35,667 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 428 [2021-04-28 20:22:35,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:22:35,767 INFO L129 PetriNetUnfolder]: 106/382 cut-off events. [2021-04-28 20:22:35,768 INFO L130 PetriNetUnfolder]: For 175/323 co-relation queries the response was YES. [2021-04-28 20:22:35,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 944 conditions, 382 events. 106/382 cut-off events. For 175/323 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2415 event pairs, 44 based on Foata normal form. 9/264 useless extension candidates. Maximal degree in co-relation 930. Up to 161 conditions per place. [2021-04-28 20:22:35,774 INFO L132 encePairwiseOnDemand]: 420/428 looper letters, 11 selfloop transitions, 16 changer transitions 0/67 dead transitions. [2021-04-28 20:22:35,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 67 transitions, 310 flow [2021-04-28 20:22:35,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 20:22:35,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 20:22:35,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 991 transitions. [2021-04-28 20:22:35,779 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5788551401869159 [2021-04-28 20:22:35,780 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 991 transitions. [2021-04-28 20:22:35,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 991 transitions. [2021-04-28 20:22:35,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:22:35,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 991 transitions. [2021-04-28 20:22:35,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 247.75) internal successors, (991), 4 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:35,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 428.0) internal successors, (2140), 5 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:35,792 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 428.0) internal successors, (2140), 5 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:35,792 INFO L185 Difference]: Start difference. First operand has 65 places, 58 transitions, 202 flow. Second operand 4 states and 991 transitions. [2021-04-28 20:22:35,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 67 transitions, 310 flow [2021-04-28 20:22:35,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 67 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 20:22:35,797 INFO L241 Difference]: Finished difference. Result has 69 places, 64 transitions, 295 flow [2021-04-28 20:22:35,797 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=295, PETRI_PLACES=69, PETRI_TRANSITIONS=64} [2021-04-28 20:22:35,797 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -88 predicate places. [2021-04-28 20:22:35,797 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:22:35,798 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 64 transitions, 295 flow [2021-04-28 20:22:35,798 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 64 transitions, 295 flow [2021-04-28 20:22:35,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 64 transitions, 295 flow [2021-04-28 20:22:35,866 INFO L129 PetriNetUnfolder]: 106/387 cut-off events. [2021-04-28 20:22:35,866 INFO L130 PetriNetUnfolder]: For 306/360 co-relation queries the response was YES. [2021-04-28 20:22:35,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 929 conditions, 387 events. 106/387 cut-off events. For 306/360 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2585 event pairs, 35 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 914. Up to 161 conditions per place. [2021-04-28 20:22:35,880 INFO L146 LiptonReduction]: Number of co-enabled transitions 2060 [2021-04-28 20:22:36,097 INFO L158 LiptonReduction]: Checked pairs total: 860 [2021-04-28 20:22:36,097 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:22:36,097 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 300 [2021-04-28 20:22:36,099 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 64 transitions, 295 flow [2021-04-28 20:22:36,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 243.75) internal successors, (975), 4 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:36,100 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:22:36,101 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:22:36,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 20:22:36,101 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:22:36,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:22:36,101 INFO L82 PathProgramCache]: Analyzing trace with hash 2073700579, now seen corresponding path program 1 times [2021-04-28 20:22:36,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:22:36,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646685822] [2021-04-28 20:22:36,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:22:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:22:36,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:22:36,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:22:36,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:22:36,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 20:22:36,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:22:36,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:22:36,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:22:36,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646685822] [2021-04-28 20:22:36,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:22:36,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 20:22:36,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546078371] [2021-04-28 20:22:36,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 20:22:36,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:22:36,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 20:22:36,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 20:22:36,175 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 428 [2021-04-28 20:22:36,177 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 295 flow. Second operand has 4 states, 4 states have (on average 329.75) internal successors, (1319), 4 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:36,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:22:36,178 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 428 [2021-04-28 20:22:36,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:22:43,899 INFO L129 PetriNetUnfolder]: 39155/58265 cut-off events. [2021-04-28 20:22:43,902 INFO L130 PetriNetUnfolder]: For 2782/2907 co-relation queries the response was YES. [2021-04-28 20:22:44,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118427 conditions, 58265 events. 39155/58265 cut-off events. For 2782/2907 co-relation queries the response was YES. Maximal size of possible extension queue 8325. Compared 526594 event pairs, 19495 based on Foata normal form. 1207/18221 useless extension candidates. Maximal degree in co-relation 118410. Up to 37522 conditions per place. [2021-04-28 20:22:44,496 INFO L132 encePairwiseOnDemand]: 408/428 looper letters, 33 selfloop transitions, 32 changer transitions 0/107 dead transitions. [2021-04-28 20:22:44,496 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 107 transitions, 511 flow [2021-04-28 20:22:44,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 20:22:44,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 20:22:44,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1711 transitions. [2021-04-28 20:22:44,504 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7995327102803739 [2021-04-28 20:22:44,504 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1711 transitions. [2021-04-28 20:22:44,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1711 transitions. [2021-04-28 20:22:44,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:22:44,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1711 transitions. [2021-04-28 20:22:44,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 342.2) internal successors, (1711), 5 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:44,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 428.0) internal successors, (2568), 6 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:44,620 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 428.0) internal successors, (2568), 6 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:44,620 INFO L185 Difference]: Start difference. First operand has 69 places, 64 transitions, 295 flow. Second operand 5 states and 1711 transitions. [2021-04-28 20:22:44,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 107 transitions, 511 flow [2021-04-28 20:22:44,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 107 transitions, 511 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 20:22:44,641 INFO L241 Difference]: Finished difference. Result has 76 places, 94 transitions, 533 flow [2021-04-28 20:22:44,642 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=533, PETRI_PLACES=76, PETRI_TRANSITIONS=94} [2021-04-28 20:22:44,642 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -81 predicate places. [2021-04-28 20:22:44,642 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:22:44,642 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 94 transitions, 533 flow [2021-04-28 20:22:44,643 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 94 transitions, 533 flow [2021-04-28 20:22:44,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 94 transitions, 533 flow [2021-04-28 20:22:49,433 INFO L129 PetriNetUnfolder]: 32941/49406 cut-off events. [2021-04-28 20:22:49,433 INFO L130 PetriNetUnfolder]: For 9158/69898 co-relation queries the response was YES. [2021-04-28 20:22:49,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141905 conditions, 49406 events. 32941/49406 cut-off events. For 9158/69898 co-relation queries the response was YES. Maximal size of possible extension queue 7645. Compared 452119 event pairs, 18503 based on Foata normal form. 6/14786 useless extension candidates. Maximal degree in co-relation 141885. Up to 46711 conditions per place. [2021-04-28 20:22:50,414 INFO L146 LiptonReduction]: Number of co-enabled transitions 3142 [2021-04-28 20:22:53,422 INFO L158 LiptonReduction]: Checked pairs total: 1337 [2021-04-28 20:22:53,423 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:22:53,423 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8781 [2021-04-28 20:22:53,425 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 94 transitions, 533 flow [2021-04-28 20:22:53,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 329.75) internal successors, (1319), 4 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:53,427 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:22:53,427 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:22:53,427 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 20:22:53,427 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:22:53,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:22:53,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1614555253, now seen corresponding path program 1 times [2021-04-28 20:22:53,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:22:53,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714978997] [2021-04-28 20:22:53,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:22:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:22:53,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:22:53,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:22:53,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:22:53,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:22:53,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:22:53,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714978997] [2021-04-28 20:22:53,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:22:53,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 20:22:53,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971783927] [2021-04-28 20:22:53,488 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:22:53,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:22:53,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:22:53,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:22:53,491 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 428 [2021-04-28 20:22:53,493 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 94 transitions, 533 flow. Second operand has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:22:53,493 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:22:53,493 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 428 [2021-04-28 20:22:53,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:22:59,752 INFO L129 PetriNetUnfolder]: 46337/69083 cut-off events. [2021-04-28 20:22:59,752 INFO L130 PetriNetUnfolder]: For 19823/160904 co-relation queries the response was YES. [2021-04-28 20:23:00,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 198454 conditions, 69083 events. 46337/69083 cut-off events. For 19823/160904 co-relation queries the response was YES. Maximal size of possible extension queue 9594. Compared 642553 event pairs, 26394 based on Foata normal form. 604/21108 useless extension candidates. Maximal degree in co-relation 198432. Up to 65113 conditions per place. [2021-04-28 20:23:00,312 INFO L132 encePairwiseOnDemand]: 425/428 looper letters, 4 selfloop transitions, 8 changer transitions 0/94 dead transitions. [2021-04-28 20:23:00,313 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 94 transitions, 557 flow [2021-04-28 20:23:00,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:23:00,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:23:00,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 843 transitions. [2021-04-28 20:23:00,317 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6565420560747663 [2021-04-28 20:23:00,317 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 843 transitions. [2021-04-28 20:23:00,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 843 transitions. [2021-04-28 20:23:00,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:23:00,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 843 transitions. [2021-04-28 20:23:00,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:23:00,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:23:00,329 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:23:00,329 INFO L185 Difference]: Start difference. First operand has 76 places, 94 transitions, 533 flow. Second operand 3 states and 843 transitions. [2021-04-28 20:23:00,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 94 transitions, 557 flow [2021-04-28 20:23:00,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 94 transitions, 557 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 20:23:00,558 INFO L241 Difference]: Finished difference. Result has 79 places, 94 transitions, 559 flow [2021-04-28 20:23:00,558 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=533, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=559, PETRI_PLACES=79, PETRI_TRANSITIONS=94} [2021-04-28 20:23:00,559 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -78 predicate places. [2021-04-28 20:23:00,559 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:23:00,559 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 94 transitions, 559 flow [2021-04-28 20:23:00,559 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 94 transitions, 559 flow [2021-04-28 20:23:00,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 94 transitions, 559 flow [2021-04-28 20:23:06,587 INFO L129 PetriNetUnfolder]: 48358/71993 cut-off events. [2021-04-28 20:23:06,587 INFO L130 PetriNetUnfolder]: For 13197/59494 co-relation queries the response was YES. [2021-04-28 20:23:06,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 206947 conditions, 71993 events. 48358/71993 cut-off events. For 13197/59494 co-relation queries the response was YES. Maximal size of possible extension queue 10193. Compared 667825 event pairs, 27174 based on Foata normal form. 10/21667 useless extension candidates. Maximal degree in co-relation 206925. Up to 68662 conditions per place. [2021-04-28 20:23:07,787 INFO L146 LiptonReduction]: Number of co-enabled transitions 3140 [2021-04-28 20:23:14,004 INFO L158 LiptonReduction]: Checked pairs total: 1337 [2021-04-28 20:23:14,004 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:23:14,004 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13445 [2021-04-28 20:23:14,006 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 94 transitions, 559 flow [2021-04-28 20:23:14,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:23:14,007 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:23:14,007 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:23:14,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 20:23:14,007 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:23:14,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:23:14,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1013667682, now seen corresponding path program 1 times [2021-04-28 20:23:14,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:23:14,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463072213] [2021-04-28 20:23:14,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:23:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:23:14,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:23:14,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:23:14,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:23:14,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:23:14,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:23:14,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 20:23:14,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:23:14,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:23:14,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:23:14,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463072213] [2021-04-28 20:23:14,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:23:14,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 20:23:14,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789847364] [2021-04-28 20:23:14,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 20:23:14,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:23:14,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 20:23:14,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 20:23:14,092 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 428 [2021-04-28 20:23:14,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 94 transitions, 559 flow. Second operand has 5 states, 5 states have (on average 329.8) internal successors, (1649), 5 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:23:14,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:23:14,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 428 [2021-04-28 20:23:14,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:23:23,128 INFO L129 PetriNetUnfolder]: 58631/91010 cut-off events. [2021-04-28 20:23:23,128 INFO L130 PetriNetUnfolder]: For 33462/649985 co-relation queries the response was YES. [2021-04-28 20:23:23,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 349710 conditions, 91010 events. 58631/91010 cut-off events. For 33462/649985 co-relation queries the response was YES. Maximal size of possible extension queue 13746. Compared 912009 event pairs, 11553 based on Foata normal form. 1976/31302 useless extension candidates. Maximal degree in co-relation 349686. Up to 84355 conditions per place. [2021-04-28 20:23:24,067 INFO L132 encePairwiseOnDemand]: 408/428 looper letters, 34 selfloop transitions, 62 changer transitions 0/138 dead transitions. [2021-04-28 20:23:24,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 138 transitions, 996 flow [2021-04-28 20:23:24,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 20:23:24,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 20:23:24,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2399 transitions. [2021-04-28 20:23:24,074 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8007343124165555 [2021-04-28 20:23:24,075 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2399 transitions. [2021-04-28 20:23:24,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2399 transitions. [2021-04-28 20:23:24,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:23:24,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2399 transitions. [2021-04-28 20:23:24,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 342.7142857142857) internal successors, (2399), 7 states have internal predecessors, (2399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:23:24,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 428.0) internal successors, (3424), 8 states have internal predecessors, (3424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:23:24,092 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 428.0) internal successors, (3424), 8 states have internal predecessors, (3424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:23:24,092 INFO L185 Difference]: Start difference. First operand has 79 places, 94 transitions, 559 flow. Second operand 7 states and 2399 transitions. [2021-04-28 20:23:24,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 138 transitions, 996 flow [2021-04-28 20:23:24,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 138 transitions, 986 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 20:23:24,571 INFO L241 Difference]: Finished difference. Result has 87 places, 124 transitions, 979 flow [2021-04-28 20:23:24,572 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=979, PETRI_PLACES=87, PETRI_TRANSITIONS=124} [2021-04-28 20:23:24,572 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -70 predicate places. [2021-04-28 20:23:24,572 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:23:24,572 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 124 transitions, 979 flow [2021-04-28 20:23:24,572 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 124 transitions, 979 flow [2021-04-28 20:23:24,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 124 transitions, 979 flow [2021-04-28 20:23:32,653 INFO L129 PetriNetUnfolder]: 49895/77819 cut-off events. [2021-04-28 20:23:32,653 INFO L130 PetriNetUnfolder]: For 75515/210429 co-relation queries the response was YES. [2021-04-28 20:23:33,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 369699 conditions, 77819 events. 49895/77819 cut-off events. For 75515/210429 co-relation queries the response was YES. Maximal size of possible extension queue 11022. Compared 781560 event pairs, 10906 based on Foata normal form. 39/24370 useless extension candidates. Maximal degree in co-relation 369673. Up to 74356 conditions per place. [2021-04-28 20:23:33,868 INFO L146 LiptonReduction]: Number of co-enabled transitions 4396 [2021-04-28 20:23:41,144 INFO L158 LiptonReduction]: Checked pairs total: 2339 [2021-04-28 20:23:41,145 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:23:41,145 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16573 [2021-04-28 20:23:41,146 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 124 transitions, 979 flow [2021-04-28 20:23:41,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 329.8) internal successors, (1649), 5 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:23:41,147 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:23:41,147 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:23:41,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 20:23:41,148 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:23:41,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:23:41,148 INFO L82 PathProgramCache]: Analyzing trace with hash 78273741, now seen corresponding path program 1 times [2021-04-28 20:23:41,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:23:41,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138958935] [2021-04-28 20:23:41,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:23:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:23:41,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:23:41,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:23:41,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:23:41,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:23:41,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:23:41,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:23:41,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:23:41,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 20:23:41,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:23:41,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:23:41,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:23:41,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138958935] [2021-04-28 20:23:41,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:23:41,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 20:23:41,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960295535] [2021-04-28 20:23:41,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 20:23:41,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:23:41,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 20:23:41,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 20:23:41,265 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 428 [2021-04-28 20:23:41,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 124 transitions, 979 flow. Second operand has 6 states, 6 states have (on average 329.8333333333333) internal successors, (1979), 6 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:23:41,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:23:41,268 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 428 [2021-04-28 20:23:41,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:23:52,685 INFO L129 PetriNetUnfolder]: 54095/89219 cut-off events. [2021-04-28 20:23:52,685 INFO L130 PetriNetUnfolder]: For 102574/1940193 co-relation queries the response was YES. [2021-04-28 20:23:53,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 506106 conditions, 89219 events. 54095/89219 cut-off events. For 102574/1940193 co-relation queries the response was YES. Maximal size of possible extension queue 14094. Compared 962901 event pairs, 1887 based on Foata normal form. 2078/30639 useless extension candidates. Maximal degree in co-relation 506078. Up to 83518 conditions per place. [2021-04-28 20:23:53,389 INFO L132 encePairwiseOnDemand]: 408/428 looper letters, 23 selfloop transitions, 92 changer transitions 12/169 dead transitions. [2021-04-28 20:23:53,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 169 transitions, 1637 flow [2021-04-28 20:23:53,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 20:23:53,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 20:23:53,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3087 transitions. [2021-04-28 20:23:53,398 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8014018691588785 [2021-04-28 20:23:53,398 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3087 transitions. [2021-04-28 20:23:53,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3087 transitions. [2021-04-28 20:23:53,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:23:53,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3087 transitions. [2021-04-28 20:23:53,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 343.0) internal successors, (3087), 9 states have internal predecessors, (3087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:23:53,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 428.0) internal successors, (4280), 10 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:23:53,418 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 428.0) internal successors, (4280), 10 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:23:53,418 INFO L185 Difference]: Start difference. First operand has 87 places, 124 transitions, 979 flow. Second operand 9 states and 3087 transitions. [2021-04-28 20:23:53,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 169 transitions, 1637 flow [2021-04-28 20:24:10,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 169 transitions, 1470 flow, removed 54 selfloop flow, removed 4 redundant places. [2021-04-28 20:24:10,043 INFO L241 Difference]: Finished difference. Result has 94 places, 154 transitions, 1387 flow [2021-04-28 20:24:10,043 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1387, PETRI_PLACES=94, PETRI_TRANSITIONS=154} [2021-04-28 20:24:10,044 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -63 predicate places. [2021-04-28 20:24:10,044 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:24:10,044 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 154 transitions, 1387 flow [2021-04-28 20:24:10,044 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 154 transitions, 1387 flow [2021-04-28 20:24:10,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 154 transitions, 1387 flow [2021-04-28 20:24:17,538 INFO L129 PetriNetUnfolder]: 36544/64894 cut-off events. [2021-04-28 20:24:17,538 INFO L130 PetriNetUnfolder]: For 218298/257580 co-relation queries the response was YES. [2021-04-28 20:24:17,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 377062 conditions, 64894 events. 36544/64894 cut-off events. For 218298/257580 co-relation queries the response was YES. Maximal size of possible extension queue 10948. Compared 765675 event pairs, 1773 based on Foata normal form. 1/20449 useless extension candidates. Maximal degree in co-relation 377034. Up to 52156 conditions per place. [2021-04-28 20:24:18,551 INFO L146 LiptonReduction]: Number of co-enabled transitions 5050 [2021-04-28 20:25:23,828 INFO L158 LiptonReduction]: Checked pairs total: 3332 [2021-04-28 20:25:23,829 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:25:23,829 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 73785 [2021-04-28 20:25:23,830 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 154 transitions, 1387 flow [2021-04-28 20:25:23,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 329.8333333333333) internal successors, (1979), 6 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:25:23,832 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:25:23,832 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:25:23,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 20:25:23,832 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:25:23,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:25:23,832 INFO L82 PathProgramCache]: Analyzing trace with hash -20158402, now seen corresponding path program 1 times [2021-04-28 20:25:23,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:25:23,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815746325] [2021-04-28 20:25:23,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:25:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:25:23,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:25:23,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:25:23,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:25:23,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:25:23,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:25:23,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:25:23,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:25:23,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:25:23,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:25:23,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 20:25:23,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:25:23,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:25:23,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:25:23,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815746325] [2021-04-28 20:25:23,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:25:23,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 20:25:23,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406328616] [2021-04-28 20:25:23,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 20:25:23,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:25:23,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 20:25:23,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 20:25:23,943 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 428 [2021-04-28 20:25:23,945 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 154 transitions, 1387 flow. Second operand has 7 states, 7 states have (on average 329.85714285714283) internal successors, (2309), 7 states have internal predecessors, (2309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:25:23,946 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:25:23,946 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 428 [2021-04-28 20:25:23,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:25:32,972 INFO L129 PetriNetUnfolder]: 38867/69914 cut-off events. [2021-04-28 20:25:32,973 INFO L130 PetriNetUnfolder]: For 183639/1031522 co-relation queries the response was YES. [2021-04-28 20:25:33,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 468215 conditions, 69914 events. 38867/69914 cut-off events. For 183639/1031522 co-relation queries the response was YES. Maximal size of possible extension queue 13437. Compared 823935 event pairs, 24 based on Foata normal form. 1432/23094 useless extension candidates. Maximal degree in co-relation 468185. Up to 54514 conditions per place. [2021-04-28 20:25:33,648 INFO L132 encePairwiseOnDemand]: 408/428 looper letters, 6 selfloop transitions, 109 changer transitions 24/176 dead transitions. [2021-04-28 20:25:33,649 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 176 transitions, 1857 flow [2021-04-28 20:25:33,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 20:25:33,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 20:25:33,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3751 transitions. [2021-04-28 20:25:33,659 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7967289719626168 [2021-04-28 20:25:33,659 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3751 transitions. [2021-04-28 20:25:33,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3751 transitions. [2021-04-28 20:25:33,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:25:33,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3751 transitions. [2021-04-28 20:25:33,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 341.0) internal successors, (3751), 11 states have internal predecessors, (3751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:25:33,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 428.0) internal successors, (5136), 12 states have internal predecessors, (5136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:25:33,679 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 428.0) internal successors, (5136), 12 states have internal predecessors, (5136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:25:33,679 INFO L185 Difference]: Start difference. First operand has 94 places, 154 transitions, 1387 flow. Second operand 11 states and 3751 transitions. [2021-04-28 20:25:33,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 176 transitions, 1857 flow [2021-04-28 20:29:26,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 176 transitions, 1526 flow, removed 107 selfloop flow, removed 6 redundant places. [2021-04-28 20:29:26,457 INFO L241 Difference]: Finished difference. Result has 101 places, 149 transitions, 1277 flow [2021-04-28 20:29:26,457 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=1057, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1277, PETRI_PLACES=101, PETRI_TRANSITIONS=149} [2021-04-28 20:29:26,458 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -56 predicate places. [2021-04-28 20:29:26,458 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:29:26,458 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 149 transitions, 1277 flow [2021-04-28 20:29:26,458 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 149 transitions, 1277 flow [2021-04-28 20:29:26,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 149 transitions, 1277 flow [2021-04-28 20:29:28,567 INFO L129 PetriNetUnfolder]: 13322/25220 cut-off events. [2021-04-28 20:29:28,567 INFO L130 PetriNetUnfolder]: For 32167/53020 co-relation queries the response was YES. [2021-04-28 20:29:28,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112762 conditions, 25220 events. 13322/25220 cut-off events. For 32167/53020 co-relation queries the response was YES. Maximal size of possible extension queue 5364. Compared 286676 event pairs, 10 based on Foata normal form. 1/7660 useless extension candidates. Maximal degree in co-relation 112732. Up to 14580 conditions per place. [2021-04-28 20:29:29,152 INFO L146 LiptonReduction]: Number of co-enabled transitions 4070 [2021-04-28 20:30:13,235 INFO L158 LiptonReduction]: Checked pairs total: 2956 [2021-04-28 20:30:13,236 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:30:13,236 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46778 [2021-04-28 20:30:13,237 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 149 transitions, 1277 flow [2021-04-28 20:30:13,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 329.85714285714283) internal successors, (2309), 7 states have internal predecessors, (2309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:30:13,238 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:30:13,238 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:30:13,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 20:30:13,238 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:30:13,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:30:13,239 INFO L82 PathProgramCache]: Analyzing trace with hash 223557457, now seen corresponding path program 1 times [2021-04-28 20:30:13,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:30:13,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938953327] [2021-04-28 20:30:13,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:30:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:30:13,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:30:13,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:30:13,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:30:13,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:30:13,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:30:13,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:30:13,318 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 20:30:13,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 20:30:13,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:30:13,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938953327] [2021-04-28 20:30:13,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:30:13,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 20:30:13,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355317768] [2021-04-28 20:30:13,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 20:30:13,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:30:13,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 20:30:13,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 20:30:13,336 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 428 [2021-04-28 20:30:13,337 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 149 transitions, 1277 flow. Second operand has 5 states, 5 states have (on average 241.8) internal successors, (1209), 5 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:30:13,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:30:13,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 428 [2021-04-28 20:30:13,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:30:17,026 INFO L129 PetriNetUnfolder]: 22358/41982 cut-off events. [2021-04-28 20:30:17,026 INFO L130 PetriNetUnfolder]: For 56020/123962 co-relation queries the response was YES. [2021-04-28 20:30:17,409 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188181 conditions, 41982 events. 22358/41982 cut-off events. For 56020/123962 co-relation queries the response was YES. Maximal size of possible extension queue 8667. Compared 496187 event pairs, 7 based on Foata normal form. 88/12718 useless extension candidates. Maximal degree in co-relation 188149. Up to 24786 conditions per place. [2021-04-28 20:30:17,570 INFO L132 encePairwiseOnDemand]: 419/428 looper letters, 16 selfloop transitions, 20 changer transitions 0/165 dead transitions. [2021-04-28 20:30:17,570 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 165 transitions, 1465 flow [2021-04-28 20:30:17,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 20:30:17,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 20:30:17,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1468 transitions. [2021-04-28 20:30:17,576 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5716510903426791 [2021-04-28 20:30:17,576 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1468 transitions. [2021-04-28 20:30:17,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1468 transitions. [2021-04-28 20:30:17,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:30:17,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1468 transitions. [2021-04-28 20:30:17,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:30:17,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 428.0) internal successors, (2996), 7 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:30:17,586 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 428.0) internal successors, (2996), 7 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:30:17,586 INFO L185 Difference]: Start difference. First operand has 99 places, 149 transitions, 1277 flow. Second operand 6 states and 1468 transitions. [2021-04-28 20:30:17,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 165 transitions, 1465 flow [2021-04-28 20:32:42,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 165 transitions, 1084 flow, removed 80 selfloop flow, removed 12 redundant places. [2021-04-28 20:32:42,186 INFO L241 Difference]: Finished difference. Result has 94 places, 157 transitions, 1027 flow [2021-04-28 20:32:42,186 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1027, PETRI_PLACES=94, PETRI_TRANSITIONS=157} [2021-04-28 20:32:42,186 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -63 predicate places. [2021-04-28 20:32:42,186 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:32:42,186 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 157 transitions, 1027 flow [2021-04-28 20:32:42,187 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 157 transitions, 1027 flow [2021-04-28 20:32:42,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 157 transitions, 1027 flow [2021-04-28 20:32:44,954 INFO L129 PetriNetUnfolder]: 21040/39461 cut-off events. [2021-04-28 20:32:44,954 INFO L130 PetriNetUnfolder]: For 27239/28403 co-relation queries the response was YES. [2021-04-28 20:32:45,193 INFO L84 FinitePrefix]: Finished finitePrefix Result has 151187 conditions, 39461 events. 21040/39461 cut-off events. For 27239/28403 co-relation queries the response was YES. Maximal size of possible extension queue 8303. Compared 474371 event pairs, 18 based on Foata normal form. 1/12165 useless extension candidates. Maximal degree in co-relation 151160. Up to 23328 conditions per place. [2021-04-28 20:32:45,602 INFO L146 LiptonReduction]: Number of co-enabled transitions 4578 [2021-04-28 20:33:53,481 INFO L158 LiptonReduction]: Checked pairs total: 2947 [2021-04-28 20:33:53,482 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:33:53,482 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71296 [2021-04-28 20:33:53,483 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 157 transitions, 1027 flow [2021-04-28 20:33:53,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 241.8) internal successors, (1209), 5 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:33:53,484 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:33:53,484 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:33:53,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 20:33:53,484 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:33:53,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:33:53,485 INFO L82 PathProgramCache]: Analyzing trace with hash -926277477, now seen corresponding path program 1 times [2021-04-28 20:33:53,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:33:53,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347585921] [2021-04-28 20:33:53,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:33:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:33:53,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:33:53,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:33:53,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:33:53,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:33:53,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:33:53,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:33:53,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:33:53,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347585921] [2021-04-28 20:33:53,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:33:53,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 20:33:53,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34892186] [2021-04-28 20:33:53,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 20:33:53,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:33:53,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 20:33:53,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 20:33:53,558 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 428 [2021-04-28 20:33:53,559 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 157 transitions, 1027 flow. Second operand has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:33:53,559 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:33:53,559 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 428 [2021-04-28 20:33:53,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:33:58,948 INFO L129 PetriNetUnfolder]: 37297/69316 cut-off events. [2021-04-28 20:33:58,949 INFO L130 PetriNetUnfolder]: For 47772/52529 co-relation queries the response was YES. [2021-04-28 20:33:59,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265835 conditions, 69316 events. 37297/69316 cut-off events. For 47772/52529 co-relation queries the response was YES. Maximal size of possible extension queue 17037. Compared 850473 event pairs, 30 based on Foata normal form. 82/20570 useless extension candidates. Maximal degree in co-relation 265806. Up to 42282 conditions per place. [2021-04-28 20:33:59,407 INFO L132 encePairwiseOnDemand]: 425/428 looper letters, 3 selfloop transitions, 1 changer transitions 83/158 dead transitions. [2021-04-28 20:33:59,407 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 158 transitions, 1045 flow [2021-04-28 20:33:59,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 20:33:59,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 20:33:59,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1182 transitions. [2021-04-28 20:33:59,411 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6904205607476636 [2021-04-28 20:33:59,411 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1182 transitions. [2021-04-28 20:33:59,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1182 transitions. [2021-04-28 20:33:59,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:33:59,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1182 transitions. [2021-04-28 20:33:59,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 295.5) internal successors, (1182), 4 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:33:59,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 428.0) internal successors, (2140), 5 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:33:59,419 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 428.0) internal successors, (2140), 5 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:33:59,419 INFO L185 Difference]: Start difference. First operand has 94 places, 157 transitions, 1027 flow. Second operand 4 states and 1182 transitions. [2021-04-28 20:33:59,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 158 transitions, 1045 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown