/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/mix017_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 18:02:27,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 18:02:27,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 18:02:27,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 18:02:27,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 18:02:27,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 18:02:27,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 18:02:27,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 18:02:27,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 18:02:27,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 18:02:27,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 18:02:27,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 18:02:27,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 18:02:27,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 18:02:27,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 18:02:27,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 18:02:27,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 18:02:27,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 18:02:27,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 18:02:27,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 18:02:27,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 18:02:27,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 18:02:27,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 18:02:27,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 18:02:27,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-28 18:02:27,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-28 18:02:27,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-28 18:02:27,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-28 18:02:27,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-28 18:02:27,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-28 18:02:27,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 18:02:27,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 18:02:27,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 18:02:27,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 18:02:27,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 18:02:27,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 18:02:27,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 18:02:27,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 18:02:27,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 18:02:27,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 18:02:27,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 18:02:27,239 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 18:02:27,264 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 18:02:27,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 18:02:27,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 18:02:27,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 18:02:27,267 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 18:02:27,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 18:02:27,267 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 18:02:27,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 18:02:27,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 18:02:27,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 18:02:27,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 18:02:27,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 18:02:27,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 18:02:27,269 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 18:02:27,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 18:02:27,269 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 18:02:27,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 18:02:27,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 18:02:27,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 18:02:27,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 18:02:27,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 18:02:27,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 18:02:27,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 18:02:27,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 18:02:27,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 18:02:27,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 18:02:27,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 18:02:27,272 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 18:02:27,272 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 18:02:27,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 18:02:27,273 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 18:02:27,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 18:02:27,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 18:02:27,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 18:02:27,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 18:02:27,698 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 18:02:27,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix017_power.opt.i [2021-04-28 18:02:27,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd92158b2/f99dfea5c3d9461d995d5d7348479e31/FLAG4ef16f049 [2021-04-28 18:02:28,415 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 18:02:28,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix017_power.opt.i [2021-04-28 18:02:28,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd92158b2/f99dfea5c3d9461d995d5d7348479e31/FLAG4ef16f049 [2021-04-28 18:02:28,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd92158b2/f99dfea5c3d9461d995d5d7348479e31 [2021-04-28 18:02:28,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 18:02:28,758 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 18:02:28,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 18:02:28,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 18:02:28,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 18:02:28,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 06:02:28" (1/1) ... [2021-04-28 18:02:28,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ff61f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 06:02:28, skipping insertion in model container [2021-04-28 18:02:28,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 06:02:28" (1/1) ... [2021-04-28 18:02:28,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 18:02:28,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 18:02:29,080 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/mix017_power.opt.i[950,963] [2021-04-28 18:02:29,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 18:02:29,305 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 18:02:29,318 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/mix017_power.opt.i[950,963] [2021-04-28 18:02:29,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 18:02:29,520 INFO L208 MainTranslator]: Completed translation [2021-04-28 18:02:29,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 06:02:29 WrapperNode [2021-04-28 18:02:29,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 18:02:29,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 18:02:29,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 18:02:29,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 18:02:29,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 06:02:29" (1/1) ... [2021-04-28 18:02:29,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 06:02:29" (1/1) ... [2021-04-28 18:02:29,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 18:02:29,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 18:02:29,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 18:02:29,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 18:02:29,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 06:02:29" (1/1) ... [2021-04-28 18:02:29,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 06:02:29" (1/1) ... [2021-04-28 18:02:29,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 06:02:29" (1/1) ... [2021-04-28 18:02:29,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 06:02:29" (1/1) ... [2021-04-28 18:02:29,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 06:02:29" (1/1) ... [2021-04-28 18:02:29,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 06:02:29" (1/1) ... [2021-04-28 18:02:29,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 06:02:29" (1/1) ... [2021-04-28 18:02:29,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 18:02:29,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 18:02:29,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 18:02:29,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 18:02:29,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 06:02:29" (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 18:02:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 18:02:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 18:02:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 18:02:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 18:02:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 18:02:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 18:02:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 18:02:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 18:02:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 18:02:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 18:02:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 18:02:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 18:02:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 18:02:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 18:02:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 18:02:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 18:02:29,724 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 18:02:31,496 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 18:02:31,496 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 18:02:31,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 06:02:31 BoogieIcfgContainer [2021-04-28 18:02:31,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 18:02:31,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 18:02:31,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 18:02:31,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 18:02:31,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 06:02:28" (1/3) ... [2021-04-28 18:02:31,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c218b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 06:02:31, skipping insertion in model container [2021-04-28 18:02:31,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 06:02:29" (2/3) ... [2021-04-28 18:02:31,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c218b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 06:02:31, skipping insertion in model container [2021-04-28 18:02:31,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 06:02:31" (3/3) ... [2021-04-28 18:02:31,507 INFO L111 eAbstractionObserver]: Analyzing ICFG mix017_power.opt.i [2021-04-28 18:02:31,515 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 18:02:31,520 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 18:02:31,521 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 18:02:31,560 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,560 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,561 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,561 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,561 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,561 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,561 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,562 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,562 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,562 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,563 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,563 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,563 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,563 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,564 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,564 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,564 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,564 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,564 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,564 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,578 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,578 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,578 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,578 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,578 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,579 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,579 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,579 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,579 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,579 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,579 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,580 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,580 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,580 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,580 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,580 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,580 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,583 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,583 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,584 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,584 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,584 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,584 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,585 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,585 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,585 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,585 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,585 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,586 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,586 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,586 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,586 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,587 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,587 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,587 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,587 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,588 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,588 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,588 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,588 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,589 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,589 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,589 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,589 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,590 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,590 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,590 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,590 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,590 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,590 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,592 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,592 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,592 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,592 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,592 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,593 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,593 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,593 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,593 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,593 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,594 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,594 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,594 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,594 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,594 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,594 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,595 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,595 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,595 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,596 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,596 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,596 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,596 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,596 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,597 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,597 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,597 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,597 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,599 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,600 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,600 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,600 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,600 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,601 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,601 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,601 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,601 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,602 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,602 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,602 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,602 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,602 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,604 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,604 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,604 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,604 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,605 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,605 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,605 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,605 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,607 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,607 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,608 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,608 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,608 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,608 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,608 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,609 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,611 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,611 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,611 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,612 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,612 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,612 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,612 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,612 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,613 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,613 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,614 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,615 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,615 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,615 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 18:02:31,616 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 18:02:31,639 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 18:02:31,662 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 18:02:31,663 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 18:02:31,663 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 18:02:31,663 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 18:02:31,663 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 18:02:31,663 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 18:02:31,664 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 18:02:31,664 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 18:02:31,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 117 transitions, 254 flow [2021-04-28 18:02:31,731 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-04-28 18:02:31,732 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 18:02:31,737 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2021-04-28 18:02:31,737 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 117 transitions, 254 flow [2021-04-28 18:02:31,743 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 113 transitions, 238 flow [2021-04-28 18:02:31,745 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 18:02:31,759 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 113 transitions, 238 flow [2021-04-28 18:02:31,763 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 113 transitions, 238 flow [2021-04-28 18:02:31,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 238 flow [2021-04-28 18:02:31,793 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-04-28 18:02:31,793 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 18:02:31,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2021-04-28 18:02:31,798 INFO L146 LiptonReduction]: Number of co-enabled transitions 2512 [2021-04-28 18:02:34,963 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 18:02:35,068 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 18:02:35,579 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 18:02:35,805 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 18:02:46,296 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 18:02:46,717 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 18:02:46,822 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 18:02:46,927 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 18:02:47,031 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 18:02:54,133 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 18:02:54,370 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 18:02:54,472 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 18:02:54,844 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 18:02:55,046 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 18:02:55,147 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 18:02:55,285 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 18:02:55,401 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 18:02:55,518 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 18:02:55,634 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 18:02:56,861 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 18:02:56,984 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 18:02:57,104 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 18:02:57,226 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 18:02:59,849 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 18:02:59,980 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 18:03:00,110 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 18:03:00,240 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 18:03:00,356 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 18:03:00,471 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 18:03:00,589 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 18:03:00,704 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 18:03:01,119 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 18:03:01,265 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 18:03:01,417 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 18:03:01,565 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 18:03:01,718 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 18:03:01,872 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 18:03:02,024 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 18:03:02,177 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 18:03:02,318 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 18:03:02,454 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 18:03:02,589 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 18:03:02,724 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 18:03:02,845 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:02,968 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:03,127 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:03,250 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:03,360 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 18:03:03,470 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 18:03:03,577 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 18:03:03,689 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 18:03:03,816 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:03,940 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:04,068 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:04,192 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:04,335 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 18:03:04,477 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 18:03:04,619 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 18:03:04,758 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 18:03:04,873 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 18:03:04,990 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 18:03:05,111 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 18:03:05,227 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 18:03:06,253 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 18:03:06,677 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 18:03:06,819 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 18:03:06,959 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 18:03:07,100 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 18:03:07,201 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 18:03:07,402 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 18:03:08,570 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-28 18:03:08,719 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-28 18:03:08,868 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-28 18:03:09,017 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-28 18:03:09,198 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 18:03:09,356 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 18:03:09,512 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 18:03:09,665 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 18:03:09,791 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 18:03:09,914 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 18:03:10,039 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 18:03:10,161 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 18:03:10,636 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 18:03:10,818 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 18:03:11,001 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 18:03:11,183 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 18:03:11,367 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 18:03:11,552 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 18:03:11,732 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 18:03:11,911 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 18:03:12,082 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 18:03:12,255 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 18:03:12,421 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 18:03:12,587 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 18:03:12,758 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 18:03:12,927 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 18:03:13,104 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 18:03:13,295 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 18:03:13,423 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:13,547 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:13,670 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:13,794 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:14,016 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 18:03:14,227 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 18:03:14,440 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 18:03:14,654 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 18:03:15,170 WARN L205 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2021-04-28 18:03:15,416 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-04-28 18:03:15,938 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2021-04-28 18:03:16,188 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-04-28 18:03:16,372 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 18:03:16,558 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 18:03:16,754 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 18:03:16,947 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 18:03:17,452 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 18:03:17,663 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 18:03:17,873 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 18:03:18,082 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 18:03:18,626 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2021-04-28 18:03:18,869 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2021-04-28 18:03:19,405 WARN L205 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2021-04-28 18:03:19,655 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2021-04-28 18:03:19,780 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:19,904 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:20,036 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:20,163 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 18:03:20,369 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 18:03:20,576 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 18:03:20,781 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 18:03:20,998 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 18:03:21,194 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 18:03:21,393 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 18:03:21,598 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 18:03:21,798 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 18:03:22,009 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 18:03:22,218 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 18:03:22,427 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 18:03:22,636 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-28 18:03:22,747 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 18:03:22,861 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 18:03:22,972 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 18:03:23,083 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 18:03:23,139 INFO L158 LiptonReduction]: Checked pairs total: 27342 [2021-04-28 18:03:23,140 INFO L160 LiptonReduction]: Total number of compositions: 311 [2021-04-28 18:03:23,146 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51403 [2021-04-28 18:03:23,170 INFO L129 PetriNetUnfolder]: 0/84 cut-off events. [2021-04-28 18:03:23,170 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 18:03:23,171 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 18:03:23,171 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 18:03:23,172 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 18:03:23,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 18:03:23,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1730983926, now seen corresponding path program 1 times [2021-04-28 18:03:23,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 18:03:23,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832420399] [2021-04-28 18:03:23,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 18:03:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 18:03:23,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:03:23,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 18:03:23,442 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 18:03:23,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832420399] [2021-04-28 18:03:23,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 18:03:23,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 18:03:23,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143769961] [2021-04-28 18:03:23,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 18:03:23,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 18:03:23,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 18:03:23,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 18:03:23,473 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 345 out of 428 [2021-04-28 18:03:23,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 143 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 345.6666666666667) internal successors, (1037), 3 states have internal predecessors, (1037), 0 states have call successors, (0), 0 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 18:03:23,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 18:03:23,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 345 of 428 [2021-04-28 18:03:23,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 18:03:23,632 INFO L129 PetriNetUnfolder]: 29/430 cut-off events. [2021-04-28 18:03:23,632 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 18:03:23,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 430 events. 29/430 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3392 event pairs, 15 based on Foata normal form. 23/107 useless extension candidates. Maximal degree in co-relation 426. Up to 41 conditions per place. [2021-04-28 18:03:23,639 INFO L132 encePairwiseOnDemand]: 413/428 looper letters, 7 selfloop transitions, 2 changer transitions 64/142 dead transitions. [2021-04-28 18:03:23,639 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 142 transitions, 332 flow [2021-04-28 18:03:23,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 18:03:23,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 18:03:23,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1060 transitions. [2021-04-28 18:03:23,659 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8255451713395638 [2021-04-28 18:03:23,660 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1060 transitions. [2021-04-28 18:03:23,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1060 transitions. [2021-04-28 18:03:23,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 18:03:23,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1060 transitions. [2021-04-28 18:03:23,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 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 18:03:23,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 18:03:23,685 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 18:03:23,687 INFO L185 Difference]: Start difference. First operand has 155 places, 143 transitions, 298 flow. Second operand 3 states and 1060 transitions. [2021-04-28 18:03:23,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 142 transitions, 332 flow [2021-04-28 18:03:23,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 142 transitions, 328 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 18:03:23,695 INFO L241 Difference]: Finished difference. Result has 150 places, 75 transitions, 162 flow [2021-04-28 18:03:23,698 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=150, PETRI_TRANSITIONS=75} [2021-04-28 18:03:23,699 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -5 predicate places. [2021-04-28 18:03:23,699 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 18:03:23,699 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 75 transitions, 162 flow [2021-04-28 18:03:23,700 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 75 transitions, 162 flow [2021-04-28 18:03:23,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 75 transitions, 162 flow [2021-04-28 18:03:23,711 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2021-04-28 18:03:23,711 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 18:03:23,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 75 events. 0/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 354 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 18:03:23,714 INFO L146 LiptonReduction]: Number of co-enabled transitions 2820 [2021-04-28 18:03:23,851 INFO L158 LiptonReduction]: Checked pairs total: 3748 [2021-04-28 18:03:23,852 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 18:03:23,852 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 153 [2021-04-28 18:03:23,854 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 75 transitions, 162 flow [2021-04-28 18:03:23,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 345.6666666666667) internal successors, (1037), 3 states have internal predecessors, (1037), 0 states have call successors, (0), 0 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 18:03:23,856 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 18:03:23,856 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 18:03:23,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 18:03:23,856 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 18:03:23,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 18:03:23,857 INFO L82 PathProgramCache]: Analyzing trace with hash -211262674, now seen corresponding path program 1 times [2021-04-28 18:03:23,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 18:03:23,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563683416] [2021-04-28 18:03:23,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 18:03:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 18:03:23,978 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 18:03:23,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 18:03:23,992 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 18:03:23,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563683416] [2021-04-28 18:03:23,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 18:03:23,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 18:03:23,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337973645] [2021-04-28 18:03:23,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 18:03:23,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 18:03:23,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 18:03:23,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 18:03:24,000 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 428 [2021-04-28 18:03:24,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 75 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 0 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 18:03:24,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 18:03:24,002 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 428 [2021-04-28 18:03:24,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 18:03:24,840 INFO L129 PetriNetUnfolder]: 1771/4403 cut-off events. [2021-04-28 18:03:24,840 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 18:03:24,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7178 conditions, 4403 events. 1771/4403 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 732. Compared 45996 event pairs, 639 based on Foata normal form. 0/2901 useless extension candidates. Maximal degree in co-relation 7169. Up to 2416 conditions per place. [2021-04-28 18:03:24,865 INFO L132 encePairwiseOnDemand]: 405/428 looper letters, 6 selfloop transitions, 5 changer transitions 51/104 dead transitions. [2021-04-28 18:03:24,865 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 104 transitions, 344 flow [2021-04-28 18:03:24,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 18:03:24,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 18:03:24,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 913 transitions. [2021-04-28 18:03:24,869 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7110591900311527 [2021-04-28 18:03:24,869 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 913 transitions. [2021-04-28 18:03:24,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 913 transitions. [2021-04-28 18:03:24,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 18:03:24,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 913 transitions. [2021-04-28 18:03:24,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 304.3333333333333) internal successors, (913), 3 states have internal predecessors, (913), 0 states have call successors, (0), 0 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 18:03:24,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 18:03:24,877 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 18:03:24,878 INFO L185 Difference]: Start difference. First operand has 86 places, 75 transitions, 162 flow. Second operand 3 states and 913 transitions. [2021-04-28 18:03:24,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 104 transitions, 344 flow [2021-04-28 18:03:24,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 104 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 18:03:24,881 INFO L241 Difference]: Finished difference. Result has 87 places, 53 transitions, 141 flow [2021-04-28 18:03:24,882 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=87, PETRI_TRANSITIONS=53} [2021-04-28 18:03:24,882 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -68 predicate places. [2021-04-28 18:03:24,883 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 18:03:24,883 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 53 transitions, 141 flow [2021-04-28 18:03:24,883 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 53 transitions, 141 flow [2021-04-28 18:03:24,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 53 transitions, 141 flow [2021-04-28 18:03:24,924 INFO L129 PetriNetUnfolder]: 77/291 cut-off events. [2021-04-28 18:03:24,924 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 18:03:24,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 291 events. 77/291 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1729 event pairs, 55 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 422. Up to 124 conditions per place. [2021-04-28 18:03:24,933 INFO L146 LiptonReduction]: Number of co-enabled transitions 1556 [2021-04-28 18:03:24,953 INFO L158 LiptonReduction]: Checked pairs total: 813 [2021-04-28 18:03:24,953 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 18:03:24,953 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 70 [2021-04-28 18:03:24,956 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 141 flow [2021-04-28 18:03:24,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 0 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 18:03:24,957 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 18:03:24,957 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 18:03:24,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 18:03:24,957 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 18:03:24,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 18:03:24,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1160059528, now seen corresponding path program 1 times [2021-04-28 18:03:24,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 18:03:24,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532127459] [2021-04-28 18:03:24,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 18:03:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 18:03:25,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:03:25,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 18:03:25,035 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 18:03:25,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 18:03:25,048 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 18:03:25,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532127459] [2021-04-28 18:03:25,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 18:03:25,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 18:03:25,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888532495] [2021-04-28 18:03:25,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 18:03:25,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 18:03:25,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 18:03:25,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 18:03:25,052 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 428 [2021-04-28 18:03:25,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 284.75) internal successors, (1139), 4 states have internal predecessors, (1139), 0 states have call successors, (0), 0 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 18:03:25,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 18:03:25,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 428 [2021-04-28 18:03:25,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 18:03:25,113 INFO L129 PetriNetUnfolder]: 61/185 cut-off events. [2021-04-28 18:03:25,113 INFO L130 PetriNetUnfolder]: For 17/81 co-relation queries the response was YES. [2021-04-28 18:03:25,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 185 events. 61/185 cut-off events. For 17/81 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 863 event pairs, 9 based on Foata normal form. 2/138 useless extension candidates. Maximal degree in co-relation 393. Up to 101 conditions per place. [2021-04-28 18:03:25,116 INFO L132 encePairwiseOnDemand]: 425/428 looper letters, 11 selfloop transitions, 3 changer transitions 0/56 dead transitions. [2021-04-28 18:03:25,116 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 56 transitions, 181 flow [2021-04-28 18:03:25,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 18:03:25,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 18:03:25,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 863 transitions. [2021-04-28 18:03:25,120 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6721183800623053 [2021-04-28 18:03:25,120 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 863 transitions. [2021-04-28 18:03:25,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 863 transitions. [2021-04-28 18:03:25,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 18:03:25,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 863 transitions. [2021-04-28 18:03:25,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 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 18:03:25,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 18:03:25,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 18:03:25,129 INFO L185 Difference]: Start difference. First operand has 61 places, 53 transitions, 141 flow. Second operand 3 states and 863 transitions. [2021-04-28 18:03:25,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 56 transitions, 181 flow [2021-04-28 18:03:25,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 56 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 18:03:25,132 INFO L241 Difference]: Finished difference. Result has 63 places, 53 transitions, 147 flow [2021-04-28 18:03:25,132 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=63, PETRI_TRANSITIONS=53} [2021-04-28 18:03:25,132 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -92 predicate places. [2021-04-28 18:03:25,132 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 18:03:25,132 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 53 transitions, 147 flow [2021-04-28 18:03:25,133 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 53 transitions, 147 flow [2021-04-28 18:03:25,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 53 transitions, 147 flow [2021-04-28 18:03:25,173 INFO L129 PetriNetUnfolder]: 61/261 cut-off events. [2021-04-28 18:03:25,173 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2021-04-28 18:03:25,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 261 events. 61/261 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1526 event pairs, 38 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 397. Up to 101 conditions per place. [2021-04-28 18:03:25,181 INFO L146 LiptonReduction]: Number of co-enabled transitions 1552 [2021-04-28 18:03:25,331 INFO L158 LiptonReduction]: Checked pairs total: 811 [2021-04-28 18:03:25,331 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 18:03:25,332 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 200 [2021-04-28 18:03:25,334 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 53 transitions, 147 flow [2021-04-28 18:03:25,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 284.75) internal successors, (1139), 4 states have internal predecessors, (1139), 0 states have call successors, (0), 0 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 18:03:25,335 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 18:03:25,335 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 18:03:25,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 18:03:25,335 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 18:03:25,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 18:03:25,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1160063713, now seen corresponding path program 1 times [2021-04-28 18:03:25,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 18:03:25,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707972197] [2021-04-28 18:03:25,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 18:03:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 18:03:25,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:03:25,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 18:03:25,413 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 18:03:25,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 18:03:25,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:03:25,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 18:03:25,423 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 18:03:25,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707972197] [2021-04-28 18:03:25,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 18:03:25,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 18:03:25,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309834072] [2021-04-28 18:03:25,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 18:03:25,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 18:03:25,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 18:03:25,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 18:03:25,427 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 428 [2021-04-28 18:03:25,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 53 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 331.75) internal successors, (1327), 4 states have internal predecessors, (1327), 0 states have call successors, (0), 0 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 18:03:25,430 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 18:03:25,430 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 428 [2021-04-28 18:03:25,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 18:03:29,077 INFO L129 PetriNetUnfolder]: 20951/31110 cut-off events. [2021-04-28 18:03:29,077 INFO L130 PetriNetUnfolder]: For 590/611 co-relation queries the response was YES. [2021-04-28 18:03:29,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62699 conditions, 31110 events. 20951/31110 cut-off events. For 590/611 co-relation queries the response was YES. Maximal size of possible extension queue 4575. Compared 258885 event pairs, 11174 based on Foata normal form. 553/9650 useless extension candidates. Maximal degree in co-relation 62687. Up to 19474 conditions per place. [2021-04-28 18:03:29,376 INFO L132 encePairwiseOnDemand]: 408/428 looper letters, 34 selfloop transitions, 33 changer transitions 0/97 dead transitions. [2021-04-28 18:03:29,376 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 97 transitions, 369 flow [2021-04-28 18:03:29,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 18:03:29,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 18:03:29,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1721 transitions. [2021-04-28 18:03:29,382 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8042056074766355 [2021-04-28 18:03:29,382 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1721 transitions. [2021-04-28 18:03:29,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1721 transitions. [2021-04-28 18:03:29,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 18:03:29,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1721 transitions. [2021-04-28 18:03:29,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 344.2) internal successors, (1721), 5 states have internal predecessors, (1721), 0 states have call successors, (0), 0 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 18:03:29,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 428.0) internal successors, (2568), 6 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 18:03:29,398 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 428.0) internal successors, (2568), 6 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 18:03:29,398 INFO L185 Difference]: Start difference. First operand has 63 places, 53 transitions, 147 flow. Second operand 5 states and 1721 transitions. [2021-04-28 18:03:29,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 97 transitions, 369 flow [2021-04-28 18:03:29,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 97 transitions, 363 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 18:03:29,407 INFO L241 Difference]: Finished difference. Result has 68 places, 84 transitions, 387 flow [2021-04-28 18:03:29,408 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=387, PETRI_PLACES=68, PETRI_TRANSITIONS=84} [2021-04-28 18:03:29,408 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -87 predicate places. [2021-04-28 18:03:29,408 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 18:03:29,408 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 84 transitions, 387 flow [2021-04-28 18:03:29,409 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 84 transitions, 387 flow [2021-04-28 18:03:29,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 84 transitions, 387 flow [2021-04-28 18:03:32,697 INFO L129 PetriNetUnfolder]: 18936/28613 cut-off events. [2021-04-28 18:03:32,697 INFO L130 PetriNetUnfolder]: For 5275/79221 co-relation queries the response was YES. [2021-04-28 18:03:32,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81294 conditions, 28613 events. 18936/28613 cut-off events. For 5275/79221 co-relation queries the response was YES. Maximal size of possible extension queue 4716. Compared 254745 event pairs, 10779 based on Foata normal form. 4/8441 useless extension candidates. Maximal degree in co-relation 81281. Up to 26639 conditions per place. [2021-04-28 18:03:33,176 INFO L146 LiptonReduction]: Number of co-enabled transitions 2130 [2021-04-28 18:03:38,132 INFO L158 LiptonReduction]: Checked pairs total: 1569 [2021-04-28 18:03:38,132 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 18:03:38,132 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8724 [2021-04-28 18:03:38,134 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 84 transitions, 387 flow [2021-04-28 18:03:38,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 331.75) internal successors, (1327), 4 states have internal predecessors, (1327), 0 states have call successors, (0), 0 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 18:03:38,136 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 18:03:38,136 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 18:03:38,136 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 18:03:38,136 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 18:03:38,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 18:03:38,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1584698878, now seen corresponding path program 1 times [2021-04-28 18:03:38,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 18:03:38,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226220618] [2021-04-28 18:03:38,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 18:03:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 18:03:38,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:03:38,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 18:03:38,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:03:38,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 18:03:38,259 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 18:03:38,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 18:03:38,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:03:38,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 18:03:38,270 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 18:03:38,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226220618] [2021-04-28 18:03:38,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 18:03:38,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 18:03:38,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342684754] [2021-04-28 18:03:38,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 18:03:38,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 18:03:38,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 18:03:38,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 18:03:38,280 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 428 [2021-04-28 18:03:38,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 84 transitions, 387 flow. Second operand has 5 states, 5 states have (on average 331.8) internal successors, (1659), 5 states have internal predecessors, (1659), 0 states have call successors, (0), 0 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 18:03:38,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 18:03:38,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 428 [2021-04-28 18:03:38,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 18:03:41,378 INFO L129 PetriNetUnfolder]: 22625/35505 cut-off events. [2021-04-28 18:03:41,378 INFO L130 PetriNetUnfolder]: For 11264/246386 co-relation queries the response was YES. [2021-04-28 18:03:41,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135353 conditions, 35505 events. 22625/35505 cut-off events. For 11264/246386 co-relation queries the response was YES. Maximal size of possible extension queue 5601. Compared 317187 event pairs, 4565 based on Foata normal form. 679/12099 useless extension candidates. Maximal degree in co-relation 135338. Up to 32738 conditions per place. [2021-04-28 18:03:41,942 INFO L132 encePairwiseOnDemand]: 408/428 looper letters, 35 selfloop transitions, 64 changer transitions 0/129 dead transitions. [2021-04-28 18:03:41,942 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 129 transitions, 834 flow [2021-04-28 18:03:41,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 18:03:41,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 18:03:41,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2413 transitions. [2021-04-28 18:03:41,951 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8054072096128171 [2021-04-28 18:03:41,952 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2413 transitions. [2021-04-28 18:03:41,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2413 transitions. [2021-04-28 18:03:41,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 18:03:41,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2413 transitions. [2021-04-28 18:03:41,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 344.7142857142857) internal successors, (2413), 7 states have internal predecessors, (2413), 0 states have call successors, (0), 0 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 18:03:41,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 428.0) internal successors, (3424), 8 states have internal predecessors, (3424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 18:03:41,972 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 428.0) internal successors, (3424), 8 states have internal predecessors, (3424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 18:03:41,972 INFO L185 Difference]: Start difference. First operand has 68 places, 84 transitions, 387 flow. Second operand 7 states and 2413 transitions. [2021-04-28 18:03:41,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 129 transitions, 834 flow [2021-04-28 18:03:42,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 129 transitions, 834 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 18:03:42,080 INFO L241 Difference]: Finished difference. Result has 77 places, 115 transitions, 829 flow [2021-04-28 18:03:42,080 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=829, PETRI_PLACES=77, PETRI_TRANSITIONS=115} [2021-04-28 18:03:42,080 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -78 predicate places. [2021-04-28 18:03:42,080 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 18:03:42,081 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 115 transitions, 829 flow [2021-04-28 18:03:42,081 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 115 transitions, 829 flow [2021-04-28 18:03:42,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 115 transitions, 829 flow [2021-04-28 18:03:45,053 INFO L129 PetriNetUnfolder]: 20624/32967 cut-off events. [2021-04-28 18:03:45,053 INFO L130 PetriNetUnfolder]: For 38024/336653 co-relation queries the response was YES. [2021-04-28 18:03:45,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154181 conditions, 32967 events. 20624/32967 cut-off events. For 38024/336653 co-relation queries the response was YES. Maximal size of possible extension queue 5191. Compared 312503 event pairs, 4564 based on Foata normal form. 16/10319 useless extension candidates. Maximal degree in co-relation 154163. Up to 30845 conditions per place. [2021-04-28 18:03:45,450 INFO L146 LiptonReduction]: Number of co-enabled transitions 3000 [2021-04-28 18:03:58,701 INFO L158 LiptonReduction]: Checked pairs total: 3221 [2021-04-28 18:03:58,701 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 18:03:58,701 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16621 [2021-04-28 18:03:58,702 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 115 transitions, 829 flow [2021-04-28 18:03:58,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 331.8) internal successors, (1659), 5 states have internal predecessors, (1659), 0 states have call successors, (0), 0 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 18:03:58,703 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 18:03:58,704 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 18:03:58,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 18:03:58,704 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 18:03:58,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 18:03:58,704 INFO L82 PathProgramCache]: Analyzing trace with hash -211823836, now seen corresponding path program 1 times [2021-04-28 18:03:58,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 18:03:58,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317388869] [2021-04-28 18:03:58,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 18:03:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 18:03:58,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:03:58,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 18:03:58,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:03:58,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 18:03:58,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:03:58,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 18:03:58,794 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 18:03:58,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 18:03:58,810 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 18:03:58,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317388869] [2021-04-28 18:03:58,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 18:03:58,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 18:03:58,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303650150] [2021-04-28 18:03:58,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 18:03:58,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 18:03:58,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 18:03:58,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 18:03:58,815 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 428 [2021-04-28 18:03:58,816 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 115 transitions, 829 flow. Second operand has 5 states, 5 states have (on average 250.2) internal successors, (1251), 5 states have internal predecessors, (1251), 0 states have call successors, (0), 0 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 18:03:58,817 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 18:03:58,817 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 428 [2021-04-28 18:03:58,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 18:04:04,717 INFO L129 PetriNetUnfolder]: 37137/58135 cut-off events. [2021-04-28 18:04:04,717 INFO L130 PetriNetUnfolder]: For 66622/1598044 co-relation queries the response was YES. [2021-04-28 18:04:04,930 INFO L84 FinitePrefix]: Finished finitePrefix Result has 275310 conditions, 58135 events. 37137/58135 cut-off events. For 66622/1598044 co-relation queries the response was YES. Maximal size of possible extension queue 10311. Compared 568877 event pairs, 8039 based on Foata normal form. 385/17793 useless extension candidates. Maximal degree in co-relation 275290. Up to 55430 conditions per place. [2021-04-28 18:04:05,131 INFO L132 encePairwiseOnDemand]: 421/428 looper letters, 14 selfloop transitions, 11 changer transitions 0/128 dead transitions. [2021-04-28 18:04:05,132 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 128 transitions, 934 flow [2021-04-28 18:04:05,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 18:04:05,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 18:04:05,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1520 transitions. [2021-04-28 18:04:05,144 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5919003115264797 [2021-04-28 18:04:05,144 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1520 transitions. [2021-04-28 18:04:05,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1520 transitions. [2021-04-28 18:04:05,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 18:04:05,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1520 transitions. [2021-04-28 18:04:05,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 253.33333333333334) internal successors, (1520), 6 states have internal predecessors, (1520), 0 states have call successors, (0), 0 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 18:04:05,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 428.0) internal successors, (2996), 7 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 18:04:05,168 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 428.0) internal successors, (2996), 7 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 18:04:05,168 INFO L185 Difference]: Start difference. First operand has 77 places, 115 transitions, 829 flow. Second operand 6 states and 1520 transitions. [2021-04-28 18:04:05,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 128 transitions, 934 flow [2021-04-28 18:04:10,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 128 transitions, 772 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 18:04:10,042 INFO L241 Difference]: Finished difference. Result has 81 places, 120 transitions, 719 flow [2021-04-28 18:04:10,042 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=719, PETRI_PLACES=81, PETRI_TRANSITIONS=120} [2021-04-28 18:04:10,043 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -74 predicate places. [2021-04-28 18:04:10,043 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 18:04:10,043 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 120 transitions, 719 flow [2021-04-28 18:04:10,043 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 120 transitions, 719 flow [2021-04-28 18:04:10,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 120 transitions, 719 flow [2021-04-28 18:04:15,282 INFO L129 PetriNetUnfolder]: 38670/60734 cut-off events. [2021-04-28 18:04:15,283 INFO L130 PetriNetUnfolder]: For 97760/166303 co-relation queries the response was YES. [2021-04-28 18:04:15,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 267635 conditions, 60734 events. 38670/60734 cut-off events. For 97760/166303 co-relation queries the response was YES. Maximal size of possible extension queue 9245. Compared 611146 event pairs, 8458 based on Foata normal form. 21/18672 useless extension candidates. Maximal degree in co-relation 267615. Up to 50968 conditions per place. [2021-04-28 18:04:16,228 INFO L146 LiptonReduction]: Number of co-enabled transitions 3250 [2021-04-28 18:05:03,590 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 218 DAG size of output: 178 [2021-04-28 18:05:04,114 WARN L205 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-04-28 18:05:06,541 WARN L205 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 302 DAG size of output: 258 [2021-04-28 18:05:07,545 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 255 [2021-04-28 18:05:54,329 INFO L158 LiptonReduction]: Checked pairs total: 7041 [2021-04-28 18:05:54,330 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 18:05:54,330 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 104287 [2021-04-28 18:05:54,331 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 121 transitions, 723 flow [2021-04-28 18:05:54,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 250.2) internal successors, (1251), 5 states have internal predecessors, (1251), 0 states have call successors, (0), 0 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 18:05:54,332 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 18:05:54,332 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 18:05:54,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 18:05:54,333 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 18:05:54,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 18:05:54,333 INFO L82 PathProgramCache]: Analyzing trace with hash 73848674, now seen corresponding path program 1 times [2021-04-28 18:05:54,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 18:05:54,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654780476] [2021-04-28 18:05:54,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 18:05:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 18:05:54,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:05:54,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 18:05:54,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:05:54,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 18:05:54,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:05:54,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 18:05:54,428 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 18:05:54,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 18:05:54,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:05:54,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 18:05:54,440 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 18:05:54,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654780476] [2021-04-28 18:05:54,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 18:05:54,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 18:05:54,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121438221] [2021-04-28 18:05:54,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 18:05:54,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 18:05:54,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 18:05:54,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 18:05:54,444 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 429 [2021-04-28 18:05:54,447 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 121 transitions, 723 flow. Second operand has 6 states, 6 states have (on average 332.8333333333333) internal successors, (1997), 6 states have internal predecessors, (1997), 0 states have call successors, (0), 0 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 18:05:54,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 18:05:54,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 429 [2021-04-28 18:05:54,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 18:06:00,199 INFO L129 PetriNetUnfolder]: 39666/65250 cut-off events. [2021-04-28 18:06:00,199 INFO L130 PetriNetUnfolder]: For 77397/546758 co-relation queries the response was YES. [2021-04-28 18:06:00,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 349371 conditions, 65250 events. 39666/65250 cut-off events. For 77397/546758 co-relation queries the response was YES. Maximal size of possible extension queue 9774. Compared 656179 event pairs, 1400 based on Foata normal form. 1307/21845 useless extension candidates. Maximal degree in co-relation 349349. Up to 53929 conditions per place. [2021-04-28 18:06:00,659 INFO L132 encePairwiseOnDemand]: 409/429 looper letters, 24 selfloop transitions, 95 changer transitions 13/167 dead transitions. [2021-04-28 18:06:00,659 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 167 transitions, 1394 flow [2021-04-28 18:06:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 18:06:00,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 18:06:00,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3114 transitions. [2021-04-28 18:06:00,669 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8065268065268065 [2021-04-28 18:06:00,669 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3114 transitions. [2021-04-28 18:06:00,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3114 transitions. [2021-04-28 18:06:00,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 18:06:00,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3114 transitions. [2021-04-28 18:06:00,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 346.0) internal successors, (3114), 9 states have internal predecessors, (3114), 0 states have call successors, (0), 0 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 18:06:00,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 429.0) internal successors, (4290), 10 states have internal predecessors, (4290), 0 states have call successors, (0), 0 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 18:06:00,691 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 429.0) internal successors, (4290), 10 states have internal predecessors, (4290), 0 states have call successors, (0), 0 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 18:06:00,691 INFO L185 Difference]: Start difference. First operand has 82 places, 121 transitions, 723 flow. Second operand 9 states and 3114 transitions. [2021-04-28 18:06:00,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 167 transitions, 1394 flow [2021-04-28 18:06:08,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 167 transitions, 1386 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 18:06:08,425 INFO L241 Difference]: Finished difference. Result has 92 places, 151 transitions, 1301 flow [2021-04-28 18:06:08,425 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=429, PETRI_DIFFERENCE_MINUEND_FLOW=715, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1301, PETRI_PLACES=92, PETRI_TRANSITIONS=151} [2021-04-28 18:06:08,425 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -63 predicate places. [2021-04-28 18:06:08,425 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 18:06:08,426 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 151 transitions, 1301 flow [2021-04-28 18:06:08,426 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 151 transitions, 1301 flow [2021-04-28 18:06:08,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 151 transitions, 1301 flow [2021-04-28 18:06:12,288 INFO L129 PetriNetUnfolder]: 27836/49766 cut-off events. [2021-04-28 18:06:12,289 INFO L130 PetriNetUnfolder]: For 283743/465301 co-relation queries the response was YES. [2021-04-28 18:06:12,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 288457 conditions, 49766 events. 27836/49766 cut-off events. For 283743/465301 co-relation queries the response was YES. Maximal size of possible extension queue 8430. Compared 571977 event pairs, 1388 based on Foata normal form. 1/15066 useless extension candidates. Maximal degree in co-relation 288433. Up to 39988 conditions per place. [2021-04-28 18:06:13,099 INFO L146 LiptonReduction]: Number of co-enabled transitions 3750 [2021-04-28 18:06:50,116 INFO L158 LiptonReduction]: Checked pairs total: 5309 [2021-04-28 18:06:50,116 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 18:06:50,116 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41691 [2021-04-28 18:06:50,118 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 151 transitions, 1301 flow [2021-04-28 18:06:50,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 332.8333333333333) internal successors, (1997), 6 states have internal predecessors, (1997), 0 states have call successors, (0), 0 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 18:06:50,119 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 18:06:50,119 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 18:06:50,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 18:06:50,119 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 18:06:50,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 18:06:50,120 INFO L82 PathProgramCache]: Analyzing trace with hash -346008850, now seen corresponding path program 1 times [2021-04-28 18:06:50,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 18:06:50,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795889673] [2021-04-28 18:06:50,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 18:06:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 18:06:50,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:06:50,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 18:06:50,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:06:50,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 18:06:50,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 18:06:50,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 18:06:50,191 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 18:06:50,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795889673] [2021-04-28 18:06:50,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 18:06:50,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 18:06:50,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161947194] [2021-04-28 18:06:50,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 18:06:50,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 18:06:50,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 18:06:50,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 18:06:50,195 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 429 [2021-04-28 18:06:50,196 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 151 transitions, 1301 flow. Second operand has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 0 states have call successors, (0), 0 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 18:06:50,196 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 18:06:50,196 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 429 [2021-04-28 18:06:50,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 18:06:59,781 INFO L129 PetriNetUnfolder]: 48079/83672 cut-off events. [2021-04-28 18:06:59,782 INFO L130 PetriNetUnfolder]: For 551021/895152 co-relation queries the response was YES. [2021-04-28 18:07:00,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 492266 conditions, 83672 events. 48079/83672 cut-off events. For 551021/895152 co-relation queries the response was YES. Maximal size of possible extension queue 15357. Compared 964718 event pairs, 2642 based on Foata normal form. 190/25126 useless extension candidates. Maximal degree in co-relation 492240. Up to 68392 conditions per place. [2021-04-28 18:07:00,370 INFO L132 encePairwiseOnDemand]: 426/429 looper letters, 4 selfloop transitions, 2 changer transitions 0/153 dead transitions. [2021-04-28 18:07:00,370 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 153 transitions, 1325 flow [2021-04-28 18:07:00,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 18:07:00,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 18:07:00,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1203 transitions. [2021-04-28 18:07:00,374 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.701048951048951 [2021-04-28 18:07:00,374 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1203 transitions. [2021-04-28 18:07:00,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1203 transitions. [2021-04-28 18:07:00,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 18:07:00,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1203 transitions. [2021-04-28 18:07:00,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 300.75) internal successors, (1203), 4 states have internal predecessors, (1203), 0 states have call successors, (0), 0 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 18:07:00,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 429.0) internal successors, (2145), 5 states have internal predecessors, (2145), 0 states have call successors, (0), 0 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 18:07:00,384 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 429.0) internal successors, (2145), 5 states have internal predecessors, (2145), 0 states have call successors, (0), 0 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 18:07:00,384 INFO L185 Difference]: Start difference. First operand has 91 places, 151 transitions, 1301 flow. Second operand 4 states and 1203 transitions. [2021-04-28 18:07:00,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 153 transitions, 1325 flow [2021-04-28 18:11:25,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 153 transitions, 993 flow, removed 108 selfloop flow, removed 5 redundant places. [2021-04-28 18:11:25,046 INFO L241 Difference]: Finished difference. Result has 91 places, 152 transitions, 984 flow [2021-04-28 18:11:25,046 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=429, PETRI_DIFFERENCE_MINUEND_FLOW=969, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=984, PETRI_PLACES=91, PETRI_TRANSITIONS=152} [2021-04-28 18:11:25,046 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -64 predicate places. [2021-04-28 18:11:25,046 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 18:11:25,046 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 152 transitions, 984 flow [2021-04-28 18:11:25,046 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 152 transitions, 984 flow [2021-04-28 18:11:25,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 152 transitions, 984 flow [2021-04-28 18:11:31,824 INFO L129 PetriNetUnfolder]: 48548/84918 cut-off events. [2021-04-28 18:11:31,824 INFO L130 PetriNetUnfolder]: For 84438/88996 co-relation queries the response was YES. [2021-04-28 18:11:32,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 319473 conditions, 84918 events. 48548/84918 cut-off events. For 84438/88996 co-relation queries the response was YES. Maximal size of possible extension queue 15879. Compared 1016953 event pairs, 2651 based on Foata normal form. 1/25555 useless extension candidates. Maximal degree in co-relation 319448. Up to 41041 conditions per place. [2021-04-28 18:11:33,944 INFO L146 LiptonReduction]: Number of co-enabled transitions 3852 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown