/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/mix053_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 22:09:05,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 22:09:05,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 22:09:05,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 22:09:05,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 22:09:05,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 22:09:05,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 22:09:05,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 22:09:05,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 22:09:05,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 22:09:05,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 22:09:05,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 22:09:05,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 22:09:05,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 22:09:05,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 22:09:05,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 22:09:05,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 22:09:05,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 22:09:05,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 22:09:05,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 22:09:05,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 22:09:05,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 22:09:05,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 22:09:05,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 22:09:05,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-28 22:09:05,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-28 22:09:05,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-28 22:09:05,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-28 22:09:05,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-28 22:09:05,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-28 22:09:05,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 22:09:05,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 22:09:05,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 22:09:05,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 22:09:05,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 22:09:05,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 22:09:05,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 22:09:05,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 22:09:05,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 22:09:05,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 22:09:05,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 22:09:05,261 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 22:09:05,310 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 22:09:05,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 22:09:05,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 22:09:05,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 22:09:05,317 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 22:09:05,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 22:09:05,317 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 22:09:05,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 22:09:05,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 22:09:05,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 22:09:05,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 22:09:05,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 22:09:05,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 22:09:05,320 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 22:09:05,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 22:09:05,320 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 22:09:05,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 22:09:05,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 22:09:05,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 22:09:05,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 22:09:05,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 22:09:05,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:09:05,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 22:09:05,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 22:09:05,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 22:09:05,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 22:09:05,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 22:09:05,323 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 22:09:05,323 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 22:09:05,323 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 22:09:05,323 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 22:09:05,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 22:09:05,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 22:09:05,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 22:09:05,733 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 22:09:05,734 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 22:09:05,735 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix053_rmo.opt.i [2021-04-28 22:09:05,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f066bd417/31541285bba24eeba6fe5893cbf38a12/FLAGc8c7385b9 [2021-04-28 22:09:06,612 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 22:09:06,613 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix053_rmo.opt.i [2021-04-28 22:09:06,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f066bd417/31541285bba24eeba6fe5893cbf38a12/FLAGc8c7385b9 [2021-04-28 22:09:06,812 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f066bd417/31541285bba24eeba6fe5893cbf38a12 [2021-04-28 22:09:06,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 22:09:06,859 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 22:09:06,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 22:09:06,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 22:09:06,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 22:09:06,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:09:06" (1/1) ... [2021-04-28 22:09:06,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50d6e2bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:06, skipping insertion in model container [2021-04-28 22:09:06,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:09:06" (1/1) ... [2021-04-28 22:09:06,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 22:09:06,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 22:09:07,101 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/mix053_rmo.opt.i[948,961] [2021-04-28 22:09:07,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:09:07,502 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 22:09:07,520 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/mix053_rmo.opt.i[948,961] [2021-04-28 22:09:07,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:09:07,799 INFO L208 MainTranslator]: Completed translation [2021-04-28 22:09:07,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:07 WrapperNode [2021-04-28 22:09:07,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 22:09:07,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 22:09:07,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 22:09:07,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 22:09:07,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:07" (1/1) ... [2021-04-28 22:09:07,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:07" (1/1) ... [2021-04-28 22:09:07,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 22:09:07,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 22:09:07,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 22:09:07,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 22:09:07,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:07" (1/1) ... [2021-04-28 22:09:07,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:07" (1/1) ... [2021-04-28 22:09:07,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:07" (1/1) ... [2021-04-28 22:09:07,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:07" (1/1) ... [2021-04-28 22:09:07,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:07" (1/1) ... [2021-04-28 22:09:07,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:07" (1/1) ... [2021-04-28 22:09:07,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:07" (1/1) ... [2021-04-28 22:09:07,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 22:09:07,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 22:09:07,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 22:09:07,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 22:09:07,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:07" (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 22:09:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 22:09:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 22:09:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 22:09:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 22:09:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 22:09:08,024 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 22:09:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 22:09:08,025 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 22:09:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 22:09:08,025 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 22:09:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 22:09:08,025 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 22:09:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 22:09:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 22:09:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 22:09:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 22:09:08,028 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 22:09:10,534 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 22:09:10,535 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 22:09:10,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:09:10 BoogieIcfgContainer [2021-04-28 22:09:10,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 22:09:10,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 22:09:10,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 22:09:10,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 22:09:10,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 10:09:06" (1/3) ... [2021-04-28 22:09:10,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7a39b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:09:10, skipping insertion in model container [2021-04-28 22:09:10,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:07" (2/3) ... [2021-04-28 22:09:10,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7a39b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:09:10, skipping insertion in model container [2021-04-28 22:09:10,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:09:10" (3/3) ... [2021-04-28 22:09:10,546 INFO L111 eAbstractionObserver]: Analyzing ICFG mix053_rmo.opt.i [2021-04-28 22:09:10,554 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 22:09:10,560 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 22:09:10,561 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 22:09:10,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,629 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,630 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,630 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,630 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,633 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,633 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,634 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,634 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,636 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,636 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,637 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,637 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,637 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,637 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,637 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,638 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,639 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,639 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,639 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,639 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,639 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,640 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,640 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,640 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,644 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,644 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,644 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,644 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,644 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,644 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,645 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,645 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,645 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,646 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,646 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,646 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,646 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,658 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,669 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,669 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,674 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,674 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,675 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,675 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,676 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,676 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,676 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,676 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,677 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,677 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,677 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,677 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,678 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,679 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,680 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,680 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,680 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,680 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,681 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,681 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,681 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,682 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,682 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,682 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,682 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,682 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,682 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,683 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,683 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,683 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,684 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,684 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,684 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,684 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,685 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,685 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,685 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,685 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,688 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,688 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,688 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,689 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,692 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,692 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,692 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,692 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,693 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,697 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,701 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,702 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,702 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,702 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,702 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,703 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,703 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,703 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,703 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,703 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,704 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,704 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,706 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,706 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,706 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,707 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:10,709 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 22:09:10,735 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 22:09:10,780 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 22:09:10,780 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 22:09:10,780 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 22:09:10,780 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 22:09:10,781 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 22:09:10,781 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 22:09:10,781 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 22:09:10,781 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 22:09:10,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 244 flow [2021-04-28 22:09:10,882 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-04-28 22:09:10,883 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:09:10,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2021-04-28 22:09:10,907 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 112 transitions, 244 flow [2021-04-28 22:09:10,918 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 108 transitions, 228 flow [2021-04-28 22:09:10,920 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:09:10,937 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 108 transitions, 228 flow [2021-04-28 22:09:10,941 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 108 transitions, 228 flow [2021-04-28 22:09:10,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 108 transitions, 228 flow [2021-04-28 22:09:11,001 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-04-28 22:09:11,001 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:09:11,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2021-04-28 22:09:11,010 INFO L146 LiptonReduction]: Number of co-enabled transitions 2300 [2021-04-28 22:09:14,254 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:09:14,358 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 22:09:14,865 WARN L205 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 22:09:15,053 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 22:09:22,955 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:09:29,563 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:09:29,669 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:09:29,783 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:09:29,889 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:09:31,459 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:09:31,581 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:09:31,704 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:09:31,829 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:09:31,942 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:09:32,078 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:09:32,188 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:09:32,295 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:09:32,410 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:09:32,528 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:09:32,649 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:09:32,770 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:09:32,971 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:09:33,161 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:09:33,334 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:09:33,468 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:09:33,603 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:09:33,738 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:09:34,326 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:09:34,430 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:09:34,533 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:09:34,695 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:09:34,853 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:09:35,012 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:09:35,168 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:09:36,039 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:09:36,170 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:09:36,312 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:09:36,449 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:09:36,586 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:09:36,718 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:09:36,847 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:09:36,982 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:09:37,202 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:09:37,380 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:09:37,567 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:09:37,747 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:09:37,907 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:09:38,067 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:09:38,230 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:09:38,388 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:09:38,546 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:09:38,718 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:09:38,898 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:09:39,080 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:09:39,244 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:09:39,414 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:09:39,587 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:09:39,781 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:09:39,947 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:09:40,111 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:09:40,283 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:09:40,447 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:09:40,590 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:09:40,736 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:09:40,882 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:09:41,030 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:09:41,178 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:09:41,324 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:09:41,469 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:09:41,616 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:09:41,764 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:09:41,913 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:09:42,056 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:09:42,196 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:09:42,326 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:09:42,455 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:09:42,586 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:09:42,741 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:09:42,946 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:09:43,143 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:09:43,333 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:09:43,523 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:09:43,672 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:09:43,820 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:09:43,972 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:09:44,121 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:09:44,301 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:09:44,476 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:09:44,642 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:09:44,811 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:09:45,344 WARN L205 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 22:09:45,617 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 22:09:46,171 WARN L205 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 22:09:46,439 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 22:09:46,572 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:09:46,698 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:09:46,825 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:09:46,949 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:09:47,148 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:47,352 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:47,557 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:47,761 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:47,960 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:48,160 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:48,359 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:48,561 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:49,070 WARN L205 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 22:09:49,304 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 22:09:49,795 WARN L205 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 22:09:50,020 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 22:09:50,219 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:50,423 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:50,626 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:50,820 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:51,023 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:51,229 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:51,432 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:51,641 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:09:51,702 INFO L158 LiptonReduction]: Checked pairs total: 22677 [2021-04-28 22:09:51,703 INFO L160 LiptonReduction]: Total number of compositions: 257 [2021-04-28 22:09:51,709 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40791 [2021-04-28 22:09:51,739 INFO L129 PetriNetUnfolder]: 1/98 cut-off events. [2021-04-28 22:09:51,740 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:09:51,740 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:09:51,741 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:09:51,741 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:09:51,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:09:51,748 INFO L82 PathProgramCache]: Analyzing trace with hash -33553090, now seen corresponding path program 1 times [2021-04-28 22:09:51,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:09:51,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39322831] [2021-04-28 22:09:51,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:09:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:09:52,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:09:52,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:09:52,052 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 22:09:52,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39322831] [2021-04-28 22:09:52,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:09:52,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:09:52,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257134501] [2021-04-28 22:09:52,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:09:52,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:09:52,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:09:52,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:09:52,093 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 369 [2021-04-28 22:09:52,102 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 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 22:09:52,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:09:52,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 369 [2021-04-28 22:09:52,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:09:52,256 INFO L129 PetriNetUnfolder]: 9/270 cut-off events. [2021-04-28 22:09:52,257 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:09:52,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 270 events. 9/270 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 1952 event pairs, 3 based on Foata normal form. 12/60 useless extension candidates. Maximal degree in co-relation 242. Up to 17 conditions per place. [2021-04-28 22:09:52,261 INFO L132 encePairwiseOnDemand]: 354/369 looper letters, 5 selfloop transitions, 2 changer transitions 58/133 dead transitions. [2021-04-28 22:09:52,262 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 133 transitions, 310 flow [2021-04-28 22:09:52,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:09:52,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:09:52,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 935 transitions. [2021-04-28 22:09:52,285 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8446251129177959 [2021-04-28 22:09:52,286 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 935 transitions. [2021-04-28 22:09:52,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 935 transitions. [2021-04-28 22:09:52,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:09:52,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 935 transitions. [2021-04-28 22:09:52,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 311.6666666666667) internal successors, (935), 3 states have internal predecessors, (935), 0 states have call successors, (0), 0 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 22:09:52,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 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 22:09:52,317 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 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 22:09:52,320 INFO L185 Difference]: Start difference. First operand has 147 places, 135 transitions, 282 flow. Second operand 3 states and 935 transitions. [2021-04-28 22:09:52,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 133 transitions, 310 flow [2021-04-28 22:09:52,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 133 transitions, 306 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 22:09:52,329 INFO L241 Difference]: Finished difference. Result has 142 places, 73 transitions, 158 flow [2021-04-28 22:09:52,332 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=142, PETRI_TRANSITIONS=73} [2021-04-28 22:09:52,333 INFO L343 CegarLoopForPetriNet]: 147 programPoint places, -5 predicate places. [2021-04-28 22:09:52,333 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:09:52,333 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 73 transitions, 158 flow [2021-04-28 22:09:52,334 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 73 transitions, 158 flow [2021-04-28 22:09:52,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 73 transitions, 158 flow [2021-04-28 22:09:52,352 INFO L129 PetriNetUnfolder]: 0/73 cut-off events. [2021-04-28 22:09:52,352 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:09:52,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 73 events. 0/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 366 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 22:09:52,355 INFO L146 LiptonReduction]: Number of co-enabled transitions 2612 [2021-04-28 22:09:52,826 INFO L158 LiptonReduction]: Checked pairs total: 3476 [2021-04-28 22:09:52,827 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:09:52,827 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 494 [2021-04-28 22:09:52,829 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 73 transitions, 158 flow [2021-04-28 22:09:52,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 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 22:09:52,830 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:09:52,831 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:09:52,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 22:09:52,831 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:09:52,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:09:52,832 INFO L82 PathProgramCache]: Analyzing trace with hash 2115263902, now seen corresponding path program 1 times [2021-04-28 22:09:52,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:09:52,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676609998] [2021-04-28 22:09:52,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:09:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:09:52,953 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 22:09:52,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 22:09:52,975 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 22:09:52,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676609998] [2021-04-28 22:09:52,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:09:52,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:09:52,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342303540] [2021-04-28 22:09:52,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:09:52,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:09:52,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:09:52,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:09:52,987 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 369 [2021-04-28 22:09:52,988 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 73 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 232.66666666666666) internal successors, (698), 3 states have internal predecessors, (698), 0 states have call successors, (0), 0 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 22:09:52,988 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:09:52,988 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 369 [2021-04-28 22:09:52,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:09:54,721 INFO L129 PetriNetUnfolder]: 3859/10137 cut-off events. [2021-04-28 22:09:54,722 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:09:54,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15878 conditions, 10137 events. 3859/10137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1723. Compared 129002 event pairs, 1362 based on Foata normal form. 0/5898 useless extension candidates. Maximal degree in co-relation 15869. Up to 3116 conditions per place. [2021-04-28 22:09:54,777 INFO L132 encePairwiseOnDemand]: 344/369 looper letters, 7 selfloop transitions, 7 changer transitions 54/105 dead transitions. [2021-04-28 22:09:54,777 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 105 transitions, 358 flow [2021-04-28 22:09:54,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:09:54,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:09:54,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 761 transitions. [2021-04-28 22:09:54,781 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6874435411020777 [2021-04-28 22:09:54,782 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 761 transitions. [2021-04-28 22:09:54,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 761 transitions. [2021-04-28 22:09:54,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:09:54,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 761 transitions. [2021-04-28 22:09:54,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 0 states have call successors, (0), 0 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 22:09:54,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 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 22:09:54,791 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 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 22:09:54,791 INFO L185 Difference]: Start difference. First operand has 84 places, 73 transitions, 158 flow. Second operand 3 states and 761 transitions. [2021-04-28 22:09:54,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 105 transitions, 358 flow [2021-04-28 22:09:54,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 105 transitions, 354 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:09:54,795 INFO L241 Difference]: Finished difference. Result has 86 places, 51 transitions, 152 flow [2021-04-28 22:09:54,795 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=86, PETRI_TRANSITIONS=51} [2021-04-28 22:09:54,796 INFO L343 CegarLoopForPetriNet]: 147 programPoint places, -61 predicate places. [2021-04-28 22:09:54,796 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:09:54,796 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 51 transitions, 152 flow [2021-04-28 22:09:54,797 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 51 transitions, 152 flow [2021-04-28 22:09:54,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 51 transitions, 152 flow [2021-04-28 22:09:54,879 INFO L129 PetriNetUnfolder]: 158/555 cut-off events. [2021-04-28 22:09:54,879 INFO L130 PetriNetUnfolder]: For 54/75 co-relation queries the response was YES. [2021-04-28 22:09:54,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 555 events. 158/555 cut-off events. For 54/75 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4204 event pairs, 55 based on Foata normal form. 0/356 useless extension candidates. Maximal degree in co-relation 952. Up to 189 conditions per place. [2021-04-28 22:09:54,895 INFO L146 LiptonReduction]: Number of co-enabled transitions 1504 [2021-04-28 22:09:54,902 INFO L158 LiptonReduction]: Checked pairs total: 455 [2021-04-28 22:09:54,903 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:09:54,903 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 107 [2021-04-28 22:09:54,905 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 152 flow [2021-04-28 22:09:54,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 232.66666666666666) internal successors, (698), 3 states have internal predecessors, (698), 0 states have call successors, (0), 0 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 22:09:54,906 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:09:54,906 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:09:54,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 22:09:54,906 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:09:54,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:09:54,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1351837792, now seen corresponding path program 1 times [2021-04-28 22:09:54,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:09:54,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509888592] [2021-04-28 22:09:54,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:09:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:09:54,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:09:54,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:09:54,987 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 22:09:54,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 22:09:54,999 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 22:09:55,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509888592] [2021-04-28 22:09:55,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:09:55,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:09:55,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988049142] [2021-04-28 22:09:55,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:09:55,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:09:55,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:09:55,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:09:55,004 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 369 [2021-04-28 22:09:55,006 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 152 flow. Second operand has 4 states, 4 states have (on average 232.75) internal successors, (931), 4 states have internal predecessors, (931), 0 states have call successors, (0), 0 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 22:09:55,006 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:09:55,006 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 369 [2021-04-28 22:09:55,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:09:55,131 INFO L129 PetriNetUnfolder]: 133/482 cut-off events. [2021-04-28 22:09:55,131 INFO L130 PetriNetUnfolder]: For 94/597 co-relation queries the response was YES. [2021-04-28 22:09:55,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 482 events. 133/482 cut-off events. For 94/597 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3455 event pairs, 18 based on Foata normal form. 7/316 useless extension candidates. Maximal degree in co-relation 1057. Up to 163 conditions per place. [2021-04-28 22:09:55,138 INFO L132 encePairwiseOnDemand]: 361/369 looper letters, 13 selfloop transitions, 11 changer transitions 0/61 dead transitions. [2021-04-28 22:09:55,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 61 transitions, 250 flow [2021-04-28 22:09:55,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:09:55,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:09:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 948 transitions. [2021-04-28 22:09:55,143 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6422764227642277 [2021-04-28 22:09:55,143 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 948 transitions. [2021-04-28 22:09:55,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 948 transitions. [2021-04-28 22:09:55,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:09:55,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 948 transitions. [2021-04-28 22:09:55,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 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 22:09:55,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 369.0) internal successors, (1845), 5 states have internal predecessors, (1845), 0 states have call successors, (0), 0 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 22:09:55,155 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 369.0) internal successors, (1845), 5 states have internal predecessors, (1845), 0 states have call successors, (0), 0 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 22:09:55,155 INFO L185 Difference]: Start difference. First operand has 58 places, 51 transitions, 152 flow. Second operand 4 states and 948 transitions. [2021-04-28 22:09:55,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 61 transitions, 250 flow [2021-04-28 22:09:55,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 61 transitions, 226 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:09:55,160 INFO L241 Difference]: Finished difference. Result has 62 places, 58 transitions, 222 flow [2021-04-28 22:09:55,160 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=62, PETRI_TRANSITIONS=58} [2021-04-28 22:09:55,161 INFO L343 CegarLoopForPetriNet]: 147 programPoint places, -85 predicate places. [2021-04-28 22:09:55,161 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:09:55,161 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 58 transitions, 222 flow [2021-04-28 22:09:55,161 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 58 transitions, 222 flow [2021-04-28 22:09:55,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 58 transitions, 222 flow [2021-04-28 22:09:55,232 INFO L129 PetriNetUnfolder]: 133/518 cut-off events. [2021-04-28 22:09:55,233 INFO L130 PetriNetUnfolder]: For 194/278 co-relation queries the response was YES. [2021-04-28 22:09:55,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1025 conditions, 518 events. 133/518 cut-off events. For 194/278 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3938 event pairs, 53 based on Foata normal form. 1/327 useless extension candidates. Maximal degree in co-relation 1013. Up to 163 conditions per place. [2021-04-28 22:09:55,248 INFO L146 LiptonReduction]: Number of co-enabled transitions 1806 [2021-04-28 22:09:55,516 INFO L158 LiptonReduction]: Checked pairs total: 615 [2021-04-28 22:09:55,516 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:09:55,516 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 355 [2021-04-28 22:09:55,518 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 222 flow [2021-04-28 22:09:55,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 232.75) internal successors, (931), 4 states have internal predecessors, (931), 0 states have call successors, (0), 0 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 22:09:55,519 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:09:55,520 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:09:55,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 22:09:55,520 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:09:55,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:09:55,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1009507236, now seen corresponding path program 1 times [2021-04-28 22:09:55,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:09:55,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242333316] [2021-04-28 22:09:55,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:09:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:09:55,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:09:55,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:09:55,586 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 22:09:55,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 22:09:55,598 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 22:09:55,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242333316] [2021-04-28 22:09:55,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:09:55,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:09:55,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519231652] [2021-04-28 22:09:55,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:09:55,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:09:55,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:09:55,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:09:55,602 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 369 [2021-04-28 22:09:55,604 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 232.75) internal successors, (931), 4 states have internal predecessors, (931), 0 states have call successors, (0), 0 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 22:09:55,604 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:09:55,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 369 [2021-04-28 22:09:55,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:09:55,710 INFO L129 PetriNetUnfolder]: 117/423 cut-off events. [2021-04-28 22:09:55,710 INFO L130 PetriNetUnfolder]: For 273/944 co-relation queries the response was YES. [2021-04-28 22:09:55,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1088 conditions, 423 events. 117/423 cut-off events. For 273/944 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2913 event pairs, 27 based on Foata normal form. 11/285 useless extension candidates. Maximal degree in co-relation 1074. Up to 143 conditions per place. [2021-04-28 22:09:55,717 INFO L132 encePairwiseOnDemand]: 361/369 looper letters, 14 selfloop transitions, 17 changer transitions 0/68 dead transitions. [2021-04-28 22:09:55,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 68 transitions, 342 flow [2021-04-28 22:09:55,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:09:55,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:09:55,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 948 transitions. [2021-04-28 22:09:55,722 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6422764227642277 [2021-04-28 22:09:55,722 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 948 transitions. [2021-04-28 22:09:55,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 948 transitions. [2021-04-28 22:09:55,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:09:55,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 948 transitions. [2021-04-28 22:09:55,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 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 22:09:55,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 369.0) internal successors, (1845), 5 states have internal predecessors, (1845), 0 states have call successors, (0), 0 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 22:09:55,732 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 369.0) internal successors, (1845), 5 states have internal predecessors, (1845), 0 states have call successors, (0), 0 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 22:09:55,732 INFO L185 Difference]: Start difference. First operand has 62 places, 58 transitions, 222 flow. Second operand 4 states and 948 transitions. [2021-04-28 22:09:55,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 68 transitions, 342 flow [2021-04-28 22:09:55,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 68 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 22:09:55,738 INFO L241 Difference]: Finished difference. Result has 67 places, 65 transitions, 328 flow [2021-04-28 22:09:55,738 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=328, PETRI_PLACES=67, PETRI_TRANSITIONS=65} [2021-04-28 22:09:55,738 INFO L343 CegarLoopForPetriNet]: 147 programPoint places, -80 predicate places. [2021-04-28 22:09:55,738 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:09:55,739 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 65 transitions, 328 flow [2021-04-28 22:09:55,739 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 65 transitions, 328 flow [2021-04-28 22:09:55,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 65 transitions, 328 flow [2021-04-28 22:09:55,811 INFO L129 PetriNetUnfolder]: 117/428 cut-off events. [2021-04-28 22:09:55,812 INFO L130 PetriNetUnfolder]: For 534/723 co-relation queries the response was YES. [2021-04-28 22:09:55,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1088 conditions, 428 events. 117/428 cut-off events. For 534/723 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2987 event pairs, 34 based on Foata normal form. 1/280 useless extension candidates. Maximal degree in co-relation 1072. Up to 143 conditions per place. [2021-04-28 22:09:55,826 INFO L146 LiptonReduction]: Number of co-enabled transitions 2058 [2021-04-28 22:09:55,837 INFO L158 LiptonReduction]: Checked pairs total: 849 [2021-04-28 22:09:55,837 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:09:55,837 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 99 [2021-04-28 22:09:55,839 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 65 transitions, 328 flow [2021-04-28 22:09:55,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 232.75) internal successors, (931), 4 states have internal predecessors, (931), 0 states have call successors, (0), 0 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 22:09:55,841 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:09:55,841 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:09:55,841 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 22:09:55,841 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:09:55,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:09:55,842 INFO L82 PathProgramCache]: Analyzing trace with hash -2072974994, now seen corresponding path program 1 times [2021-04-28 22:09:55,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:09:55,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883265872] [2021-04-28 22:09:55,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:09:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:09:55,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:09:55,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:09:55,925 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:09:55,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:09:55,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:09:55,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:09:55,937 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 22:09:55,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883265872] [2021-04-28 22:09:55,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:09:55,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:09:55,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257596751] [2021-04-28 22:09:55,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:09:55,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:09:55,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:09:55,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:09:55,941 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 369 [2021-04-28 22:09:55,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 65 transitions, 328 flow. Second operand has 4 states, 4 states have (on average 279.75) internal successors, (1119), 4 states have internal predecessors, (1119), 0 states have call successors, (0), 0 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 22:09:55,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:09:55,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 369 [2021-04-28 22:09:55,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:10:03,465 INFO L129 PetriNetUnfolder]: 43821/65140 cut-off events. [2021-04-28 22:10:03,465 INFO L130 PetriNetUnfolder]: For 3113/3459 co-relation queries the response was YES. [2021-04-28 22:10:03,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132256 conditions, 65140 events. 43821/65140 cut-off events. For 3113/3459 co-relation queries the response was YES. Maximal size of possible extension queue 9867. Compared 591908 event pairs, 22760 based on Foata normal form. 1180/19636 useless extension candidates. Maximal degree in co-relation 132238. Up to 41851 conditions per place. [2021-04-28 22:10:04,329 INFO L132 encePairwiseOnDemand]: 349/369 looper letters, 34 selfloop transitions, 33 changer transitions 0/109 dead transitions. [2021-04-28 22:10:04,329 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 109 transitions, 550 flow [2021-04-28 22:10:04,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:10:04,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:10:04,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1461 transitions. [2021-04-28 22:10:04,335 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.791869918699187 [2021-04-28 22:10:04,335 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1461 transitions. [2021-04-28 22:10:04,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1461 transitions. [2021-04-28 22:10:04,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:10:04,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1461 transitions. [2021-04-28 22:10:04,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 292.2) internal successors, (1461), 5 states have internal predecessors, (1461), 0 states have call successors, (0), 0 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 22:10:04,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 369.0) internal successors, (2214), 6 states have internal predecessors, (2214), 0 states have call successors, (0), 0 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 22:10:04,351 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 369.0) internal successors, (2214), 6 states have internal predecessors, (2214), 0 states have call successors, (0), 0 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 22:10:04,351 INFO L185 Difference]: Start difference. First operand has 67 places, 65 transitions, 328 flow. Second operand 5 states and 1461 transitions. [2021-04-28 22:10:04,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 109 transitions, 550 flow [2021-04-28 22:10:04,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 109 transitions, 550 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 22:10:04,378 INFO L241 Difference]: Finished difference. Result has 74 places, 96 transitions, 574 flow [2021-04-28 22:10:04,379 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=574, PETRI_PLACES=74, PETRI_TRANSITIONS=96} [2021-04-28 22:10:04,379 INFO L343 CegarLoopForPetriNet]: 147 programPoint places, -73 predicate places. [2021-04-28 22:10:04,379 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:10:04,379 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 96 transitions, 574 flow [2021-04-28 22:10:04,380 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 96 transitions, 574 flow [2021-04-28 22:10:04,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 96 transitions, 574 flow [2021-04-28 22:10:09,557 INFO L129 PetriNetUnfolder]: 38324/57982 cut-off events. [2021-04-28 22:10:09,557 INFO L130 PetriNetUnfolder]: For 12943/57505 co-relation queries the response was YES. [2021-04-28 22:10:09,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166859 conditions, 57982 events. 38324/57982 cut-off events. For 12943/57505 co-relation queries the response was YES. Maximal size of possible extension queue 9847. Compared 559431 event pairs, 21616 based on Foata normal form. 9/17407 useless extension candidates. Maximal degree in co-relation 166838. Up to 54446 conditions per place. [2021-04-28 22:10:10,342 INFO L146 LiptonReduction]: Number of co-enabled transitions 3126 [2021-04-28 22:10:10,476 INFO L158 LiptonReduction]: Checked pairs total: 1321 [2021-04-28 22:10:10,477 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:10:10,477 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6098 [2021-04-28 22:10:10,484 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 96 transitions, 574 flow [2021-04-28 22:10:10,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 279.75) internal successors, (1119), 4 states have internal predecessors, (1119), 0 states have call successors, (0), 0 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 22:10:10,487 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:10:10,487 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:10:10,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 22:10:10,487 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:10:10,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:10:10,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1019820754, now seen corresponding path program 1 times [2021-04-28 22:10:10,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:10:10,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6681905] [2021-04-28 22:10:10,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:10:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:10:10,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:10:10,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:10:10,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:10:10,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:10:10,593 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 22:10:10,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 22:10:10,605 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 22:10:10,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6681905] [2021-04-28 22:10:10,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:10:10,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:10:10,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980390640] [2021-04-28 22:10:10,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:10:10,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:10:10,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:10:10,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:10:10,609 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 369 [2021-04-28 22:10:10,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 96 transitions, 574 flow. Second operand has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 0 states have call successors, (0), 0 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 22:10:10,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:10:10,611 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 369 [2021-04-28 22:10:10,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:10:19,939 INFO L129 PetriNetUnfolder]: 65934/97357 cut-off events. [2021-04-28 22:10:19,939 INFO L130 PetriNetUnfolder]: For 22204/313367 co-relation queries the response was YES. [2021-04-28 22:10:20,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 280130 conditions, 97357 events. 65934/97357 cut-off events. For 22204/313367 co-relation queries the response was YES. Maximal size of possible extension queue 15417. Compared 919118 event pairs, 37638 based on Foata normal form. 639/28376 useless extension candidates. Maximal degree in co-relation 280107. Up to 92999 conditions per place. [2021-04-28 22:10:20,736 INFO L132 encePairwiseOnDemand]: 361/369 looper letters, 19 selfloop transitions, 18 changer transitions 0/105 dead transitions. [2021-04-28 22:10:20,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 105 transitions, 725 flow [2021-04-28 22:10:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:10:20,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:10:20,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 947 transitions. [2021-04-28 22:10:20,741 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6415989159891599 [2021-04-28 22:10:20,741 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 947 transitions. [2021-04-28 22:10:20,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 947 transitions. [2021-04-28 22:10:20,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:10:20,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 947 transitions. [2021-04-28 22:10:20,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 236.75) internal successors, (947), 4 states have internal predecessors, (947), 0 states have call successors, (0), 0 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 22:10:20,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 369.0) internal successors, (1845), 5 states have internal predecessors, (1845), 0 states have call successors, (0), 0 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 22:10:20,750 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 369.0) internal successors, (1845), 5 states have internal predecessors, (1845), 0 states have call successors, (0), 0 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 22:10:20,751 INFO L185 Difference]: Start difference. First operand has 74 places, 96 transitions, 574 flow. Second operand 4 states and 947 transitions. [2021-04-28 22:10:20,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 105 transitions, 725 flow [2021-04-28 22:10:20,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 105 transitions, 725 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 22:10:20,876 INFO L241 Difference]: Finished difference. Result has 80 places, 101 transitions, 713 flow [2021-04-28 22:10:20,876 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=713, PETRI_PLACES=80, PETRI_TRANSITIONS=101} [2021-04-28 22:10:20,877 INFO L343 CegarLoopForPetriNet]: 147 programPoint places, -67 predicate places. [2021-04-28 22:10:20,877 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:10:20,877 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 101 transitions, 713 flow [2021-04-28 22:10:20,877 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 101 transitions, 713 flow [2021-04-28 22:10:20,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 101 transitions, 713 flow [2021-04-28 22:10:30,213 INFO L129 PetriNetUnfolder]: 67146/99884 cut-off events. [2021-04-28 22:10:30,213 INFO L130 PetriNetUnfolder]: For 22074/115566 co-relation queries the response was YES. [2021-04-28 22:10:30,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 288145 conditions, 99884 events. 67146/99884 cut-off events. For 22074/115566 co-relation queries the response was YES. Maximal size of possible extension queue 15511. Compared 974868 event pairs, 38749 based on Foata normal form. 30/29290 useless extension candidates. Maximal degree in co-relation 288119. Up to 95318 conditions per place. [2021-04-28 22:10:31,794 INFO L146 LiptonReduction]: Number of co-enabled transitions 3592 [2021-04-28 22:10:32,333 INFO L158 LiptonReduction]: Checked pairs total: 1442 [2021-04-28 22:10:32,333 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:10:32,333 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11456 [2021-04-28 22:10:32,337 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 101 transitions, 713 flow [2021-04-28 22:10:32,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 0 states have call successors, (0), 0 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 22:10:32,338 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:10:32,338 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:10:32,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 22:10:32,338 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:10:32,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:10:32,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1744151682, now seen corresponding path program 1 times [2021-04-28 22:10:32,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:10:32,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991550429] [2021-04-28 22:10:32,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:10:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:10:32,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:10:32,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:10:32,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:10:32,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:10:32,465 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:10:32,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:10:32,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:10:32,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:10:32,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:10:32,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991550429] [2021-04-28 22:10:32,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:10:32,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:10:32,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044131685] [2021-04-28 22:10:32,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:10:32,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:10:32,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:10:32,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:10:32,483 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 369 [2021-04-28 22:10:32,485 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 101 transitions, 713 flow. Second operand has 5 states, 5 states have (on average 279.8) internal successors, (1399), 5 states have internal predecessors, (1399), 0 states have call successors, (0), 0 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 22:10:32,485 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:10:32,486 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 369 [2021-04-28 22:10:32,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:10:46,524 INFO L129 PetriNetUnfolder]: 81726/125399 cut-off events. [2021-04-28 22:10:46,524 INFO L130 PetriNetUnfolder]: For 34873/274069 co-relation queries the response was YES. [2021-04-28 22:10:47,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 483423 conditions, 125399 events. 81726/125399 cut-off events. For 34873/274069 co-relation queries the response was YES. Maximal size of possible extension queue 20391. Compared 1283151 event pairs, 16401 based on Foata normal form. 2219/41874 useless extension candidates. Maximal degree in co-relation 483395. Up to 117833 conditions per place. [2021-04-28 22:10:47,637 INFO L132 encePairwiseOnDemand]: 349/369 looper letters, 35 selfloop transitions, 64 changer transitions 0/146 dead transitions. [2021-04-28 22:10:47,637 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 146 transitions, 1160 flow [2021-04-28 22:10:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 22:10:47,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 22:10:47,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2049 transitions. [2021-04-28 22:10:47,645 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7932636469221835 [2021-04-28 22:10:47,645 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2049 transitions. [2021-04-28 22:10:47,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2049 transitions. [2021-04-28 22:10:47,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:10:47,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2049 transitions. [2021-04-28 22:10:47,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 292.7142857142857) internal successors, (2049), 7 states have internal predecessors, (2049), 0 states have call successors, (0), 0 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 22:10:47,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 369.0) internal successors, (2952), 8 states have internal predecessors, (2952), 0 states have call successors, (0), 0 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 22:10:47,660 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 369.0) internal successors, (2952), 8 states have internal predecessors, (2952), 0 states have call successors, (0), 0 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 22:10:47,660 INFO L185 Difference]: Start difference. First operand has 80 places, 101 transitions, 713 flow. Second operand 7 states and 2049 transitions. [2021-04-28 22:10:47,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 146 transitions, 1160 flow [2021-04-28 22:10:47,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 146 transitions, 1154 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-04-28 22:10:47,874 INFO L241 Difference]: Finished difference. Result has 89 places, 132 transitions, 1149 flow [2021-04-28 22:10:47,875 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1149, PETRI_PLACES=89, PETRI_TRANSITIONS=132} [2021-04-28 22:10:47,875 INFO L343 CegarLoopForPetriNet]: 147 programPoint places, -58 predicate places. [2021-04-28 22:10:47,875 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:10:47,875 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 132 transitions, 1149 flow [2021-04-28 22:10:47,876 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 132 transitions, 1149 flow [2021-04-28 22:10:47,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 132 transitions, 1149 flow [2021-04-28 22:11:01,182 INFO L129 PetriNetUnfolder]: 76132/119099 cut-off events. [2021-04-28 22:11:01,182 INFO L130 PetriNetUnfolder]: For 247943/766185 co-relation queries the response was YES. [2021-04-28 22:11:01,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 566367 conditions, 119099 events. 76132/119099 cut-off events. For 247943/766185 co-relation queries the response was YES. Maximal size of possible extension queue 19620. Compared 1266888 event pairs, 16636 based on Foata normal form. 56/35755 useless extension candidates. Maximal degree in co-relation 566336. Up to 114086 conditions per place. [2021-04-28 22:11:03,243 INFO L146 LiptonReduction]: Number of co-enabled transitions 5022 [2021-04-28 22:11:03,713 INFO L158 LiptonReduction]: Checked pairs total: 2530 [2021-04-28 22:11:03,713 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:11:03,713 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15838 [2021-04-28 22:11:03,715 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 132 transitions, 1149 flow [2021-04-28 22:11:03,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 279.8) internal successors, (1399), 5 states have internal predecessors, (1399), 0 states have call successors, (0), 0 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 22:11:03,716 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:11:03,716 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:11:03,716 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 22:11:03,716 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:11:03,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:11:03,717 INFO L82 PathProgramCache]: Analyzing trace with hash -387786591, now seen corresponding path program 1 times [2021-04-28 22:11:03,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:11:03,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136751432] [2021-04-28 22:11:03,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:11:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:11:03,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:11:03,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:11:03,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:11:03,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:11:03,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:11:03,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:11:03,798 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:11:03,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:11:03,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:11:03,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:11:03,809 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 22:11:03,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136751432] [2021-04-28 22:11:03,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:11:03,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:11:03,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818267135] [2021-04-28 22:11:03,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:11:03,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:11:03,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:11:03,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:11:03,813 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 369 [2021-04-28 22:11:03,815 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 132 transitions, 1149 flow. Second operand has 6 states, 6 states have (on average 279.8333333333333) internal successors, (1679), 6 states have internal predecessors, (1679), 0 states have call successors, (0), 0 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 22:11:03,815 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:11:03,815 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 369 [2021-04-28 22:11:03,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:11:20,361 INFO L129 PetriNetUnfolder]: 76920/125183 cut-off events. [2021-04-28 22:11:20,361 INFO L130 PetriNetUnfolder]: For 110178/858203 co-relation queries the response was YES. [2021-04-28 22:11:21,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 713775 conditions, 125183 events. 76920/125183 cut-off events. For 110178/858203 co-relation queries the response was YES. Maximal size of possible extension queue 19761. Compared 1409845 event pairs, 2658 based on Foata normal form. 2261/41709 useless extension candidates. Maximal degree in co-relation 713742. Up to 118589 conditions per place. [2021-04-28 22:11:21,692 INFO L132 encePairwiseOnDemand]: 349/369 looper letters, 24 selfloop transitions, 95 changer transitions 12/178 dead transitions. [2021-04-28 22:11:21,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 178 transitions, 1821 flow [2021-04-28 22:11:21,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 22:11:21,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 22:11:21,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2637 transitions. [2021-04-28 22:11:21,700 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7940379403794038 [2021-04-28 22:11:21,700 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2637 transitions. [2021-04-28 22:11:21,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2637 transitions. [2021-04-28 22:11:21,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:11:21,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2637 transitions. [2021-04-28 22:11:21,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 293.0) internal successors, (2637), 9 states have internal predecessors, (2637), 0 states have call successors, (0), 0 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 22:11:21,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 369.0) internal successors, (3690), 10 states have internal predecessors, (3690), 0 states have call successors, (0), 0 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 22:11:21,718 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 369.0) internal successors, (3690), 10 states have internal predecessors, (3690), 0 states have call successors, (0), 0 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 22:11:21,719 INFO L185 Difference]: Start difference. First operand has 89 places, 132 transitions, 1149 flow. Second operand 9 states and 2637 transitions. [2021-04-28 22:11:21,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 178 transitions, 1821 flow [2021-04-28 22:11:43,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 178 transitions, 1658 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 22:11:43,368 INFO L241 Difference]: Finished difference. Result has 97 places, 163 transitions, 1577 flow [2021-04-28 22:11:43,368 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=987, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1577, PETRI_PLACES=97, PETRI_TRANSITIONS=163} [2021-04-28 22:11:43,368 INFO L343 CegarLoopForPetriNet]: 147 programPoint places, -50 predicate places. [2021-04-28 22:11:43,368 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:11:43,369 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 163 transitions, 1577 flow [2021-04-28 22:11:43,369 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 163 transitions, 1577 flow [2021-04-28 22:11:43,370 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 163 transitions, 1577 flow [2021-04-28 22:11:55,480 INFO L129 PetriNetUnfolder]: 54639/96559 cut-off events. [2021-04-28 22:11:55,481 INFO L130 PetriNetUnfolder]: For 318137/553262 co-relation queries the response was YES. [2021-04-28 22:11:56,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 565591 conditions, 96559 events. 54639/96559 cut-off events. For 318137/553262 co-relation queries the response was YES. Maximal size of possible extension queue 19383. Compared 1191950 event pairs, 2686 based on Foata normal form. 3/28648 useless extension candidates. Maximal degree in co-relation 565557. Up to 78490 conditions per place. [2021-04-28 22:11:57,270 INFO L146 LiptonReduction]: Number of co-enabled transitions 5750 [2021-04-28 22:12:05,604 INFO L158 LiptonReduction]: Checked pairs total: 3630 [2021-04-28 22:12:05,604 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:12:05,605 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22237 [2021-04-28 22:12:05,606 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 163 transitions, 1577 flow [2021-04-28 22:12:05,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 279.8333333333333) internal successors, (1679), 6 states have internal predecessors, (1679), 0 states have call successors, (0), 0 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 22:12:05,607 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:12:05,607 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:12:05,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 22:12:05,607 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:12:05,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:12:05,608 INFO L82 PathProgramCache]: Analyzing trace with hash -707919066, now seen corresponding path program 1 times [2021-04-28 22:12:05,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:12:05,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58318770] [2021-04-28 22:12:05,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:12:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:12:05,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:05,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:12:05,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:05,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:12:05,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:05,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:12:05,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:05,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:12:05,698 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:12:05,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:12:05,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:05,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:12:05,710 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 22:12:05,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58318770] [2021-04-28 22:12:05,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:12:05,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 22:12:05,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324894036] [2021-04-28 22:12:05,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 22:12:05,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:12:05,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 22:12:05,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 22:12:05,714 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 369 [2021-04-28 22:12:05,716 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 163 transitions, 1577 flow. Second operand has 7 states, 7 states have (on average 279.85714285714283) internal successors, (1959), 7 states have internal predecessors, (1959), 0 states have call successors, (0), 0 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 22:12:05,717 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:12:05,717 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 369 [2021-04-28 22:12:05,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:12:20,877 INFO L129 PetriNetUnfolder]: 53511/95861 cut-off events. [2021-04-28 22:12:20,877 INFO L130 PetriNetUnfolder]: For 227323/733047 co-relation queries the response was YES. [2021-04-28 22:12:21,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 648948 conditions, 95861 events. 53511/95861 cut-off events. For 227323/733047 co-relation queries the response was YES. Maximal size of possible extension queue 19653. Compared 1188934 event pairs, 12 based on Foata normal form. 1548/30792 useless extension candidates. Maximal degree in co-relation 648912. Up to 76168 conditions per place. [2021-04-28 22:12:21,770 INFO L132 encePairwiseOnDemand]: 349/369 looper letters, 6 selfloop transitions, 113 changer transitions 29/186 dead transitions. [2021-04-28 22:12:21,770 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 186 transitions, 2065 flow [2021-04-28 22:12:21,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 22:12:21,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 22:12:21,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3201 transitions. [2021-04-28 22:12:21,780 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7886178861788617 [2021-04-28 22:12:21,780 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3201 transitions. [2021-04-28 22:12:21,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3201 transitions. [2021-04-28 22:12:21,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:12:21,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3201 transitions. [2021-04-28 22:12:21,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 291.0) internal successors, (3201), 11 states have internal predecessors, (3201), 0 states have call successors, (0), 0 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 22:12:21,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 369.0) internal successors, (4428), 12 states have internal predecessors, (4428), 0 states have call successors, (0), 0 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 22:12:21,816 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 369.0) internal successors, (4428), 12 states have internal predecessors, (4428), 0 states have call successors, (0), 0 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 22:12:21,817 INFO L185 Difference]: Start difference. First operand has 97 places, 163 transitions, 1577 flow. Second operand 11 states and 3201 transitions. [2021-04-28 22:12:21,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 186 transitions, 2065 flow [2021-04-28 22:18:16,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 186 transitions, 1728 flow, removed 110 selfloop flow, removed 5 redundant places. [2021-04-28 22:18:16,560 INFO L241 Difference]: Finished difference. Result has 105 places, 154 transitions, 1421 flow [2021-04-28 22:18:16,560 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=1241, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1421, PETRI_PLACES=105, PETRI_TRANSITIONS=154} [2021-04-28 22:18:16,560 INFO L343 CegarLoopForPetriNet]: 147 programPoint places, -42 predicate places. [2021-04-28 22:18:16,566 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:18:16,566 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 154 transitions, 1421 flow [2021-04-28 22:18:16,567 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 154 transitions, 1421 flow [2021-04-28 22:18:16,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 154 transitions, 1421 flow [2021-04-28 22:18:20,092 INFO L129 PetriNetUnfolder]: 23869/44509 cut-off events. [2021-04-28 22:18:20,092 INFO L130 PetriNetUnfolder]: For 83074/138480 co-relation queries the response was YES. [2021-04-28 22:18:20,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 198764 conditions, 44509 events. 23869/44509 cut-off events. For 83074/138480 co-relation queries the response was YES. Maximal size of possible extension queue 10598. Compared 550463 event pairs, 10 based on Foata normal form. 2/13040 useless extension candidates. Maximal degree in co-relation 198727. Up to 27648 conditions per place. [2021-04-28 22:18:21,650 INFO L146 LiptonReduction]: Number of co-enabled transitions 4266 [2021-04-28 22:19:07,687 INFO L158 LiptonReduction]: Checked pairs total: 2996 [2021-04-28 22:19:07,687 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:19:07,687 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51121 [2021-04-28 22:19:07,688 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 154 transitions, 1421 flow [2021-04-28 22:19:07,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 279.85714285714283) internal successors, (1959), 7 states have internal predecessors, (1959), 0 states have call successors, (0), 0 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 22:19:07,690 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:19:07,690 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] [2021-04-28 22:19:07,690 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 22:19:07,690 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:19:07,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:19:07,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1128149917, now seen corresponding path program 1 times [2021-04-28 22:19:07,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:19:07,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925120763] [2021-04-28 22:19:07,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:19:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:19:07,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:19:07,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:19:07,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:19:07,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:19:07,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:19:07,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:19:07,767 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 22:19:07,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925120763] [2021-04-28 22:19:07,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:19:07,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:19:07,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967285293] [2021-04-28 22:19:07,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:19:07,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:19:07,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:19:07,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:19:07,770 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 369 [2021-04-28 22:19:07,771 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 154 transitions, 1421 flow. Second operand has 4 states, 4 states have (on average 246.0) internal successors, (984), 4 states have internal predecessors, (984), 0 states have call successors, (0), 0 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 22:19:07,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:19:07,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 369 [2021-04-28 22:19:07,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:19:18,252 INFO L129 PetriNetUnfolder]: 43841/80849 cut-off events. [2021-04-28 22:19:18,252 INFO L130 PetriNetUnfolder]: For 190339/558575 co-relation queries the response was YES. [2021-04-28 22:19:18,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 360874 conditions, 80849 events. 43841/80849 cut-off events. For 190339/558575 co-relation queries the response was YES. Maximal size of possible extension queue 19962. Compared 1014283 event pairs, 15 based on Foata normal form. 84/23163 useless extension candidates. Maximal degree in co-relation 360835. Up to 51840 conditions per place. [2021-04-28 22:19:18,816 INFO L132 encePairwiseOnDemand]: 366/369 looper letters, 5 selfloop transitions, 5 changer transitions 3/157 dead transitions. [2021-04-28 22:19:18,816 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 157 transitions, 1474 flow [2021-04-28 22:19:18,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:19:18,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:19:18,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 986 transitions. [2021-04-28 22:19:18,819 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6680216802168022 [2021-04-28 22:19:18,820 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 986 transitions. [2021-04-28 22:19:18,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 986 transitions. [2021-04-28 22:19:18,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:19:18,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 986 transitions. [2021-04-28 22:19:18,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 246.5) internal successors, (986), 4 states have internal predecessors, (986), 0 states have call successors, (0), 0 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 22:19:18,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 369.0) internal successors, (1845), 5 states have internal predecessors, (1845), 0 states have call successors, (0), 0 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 22:19:18,827 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 369.0) internal successors, (1845), 5 states have internal predecessors, (1845), 0 states have call successors, (0), 0 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 22:19:18,827 INFO L185 Difference]: Start difference. First operand has 103 places, 154 transitions, 1421 flow. Second operand 4 states and 986 transitions. [2021-04-28 22:19:18,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 157 transitions, 1474 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown