/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/mix055_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 22:30:01,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 22:30:01,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 22:30:01,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-28 22:30:01,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 22:30:01,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 22:30:01,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 22:30:01,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 22:30:01,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 22:30:01,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 22:30:01,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 22:30:01,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 22:30:01,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 22:30:01,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 22:30:01,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 22:30:01,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 22:30:01,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 22:30:01,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 22:30:01,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 22:30:01,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 22:30:01,304 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 22:30:01,367 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 22:30:01,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 22:30:01,372 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 22:30:01,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 22:30:01,373 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 22:30:01,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 22:30:01,373 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 22:30:01,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 22:30:01,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 22:30:01,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 22:30:01,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 22:30:01,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 22:30:01,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 22:30:01,376 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 22:30:01,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 22:30:01,377 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 22:30:01,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 22:30:01,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 22:30:01,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 22:30:01,378 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 22:30:01,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 22:30:01,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:30:01,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 22:30:01,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 22:30:01,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 22:30:01,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 22:30:01,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 22:30:01,381 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 22:30:01,381 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 22:30:01,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 22:30:01,381 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 22:30:01,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 22:30:01,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 22:30:01,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 22:30:01,900 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 22:30:01,901 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 22:30:01,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix055_tso.opt.i [2021-04-28 22:30:01,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492de097f/49dfa30a120b497e88e2dfd5c1a3c2f9/FLAG9a8b92ce4 [2021-04-28 22:30:02,674 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 22:30:02,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix055_tso.opt.i [2021-04-28 22:30:02,696 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492de097f/49dfa30a120b497e88e2dfd5c1a3c2f9/FLAG9a8b92ce4 [2021-04-28 22:30:02,966 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492de097f/49dfa30a120b497e88e2dfd5c1a3c2f9 [2021-04-28 22:30:02,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 22:30:03,016 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 22:30:03,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 22:30:03,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 22:30:03,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 22:30:03,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:30:02" (1/1) ... [2021-04-28 22:30:03,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e272df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:30:03, skipping insertion in model container [2021-04-28 22:30:03,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:30:02" (1/1) ... [2021-04-28 22:30:03,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 22:30:03,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 22:30:03,317 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/mix055_tso.opt.i[948,961] [2021-04-28 22:30:03,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:30:03,680 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 22:30:03,699 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/mix055_tso.opt.i[948,961] [2021-04-28 22:30:03,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:30:03,909 INFO L208 MainTranslator]: Completed translation [2021-04-28 22:30:03,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:30:03 WrapperNode [2021-04-28 22:30:03,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 22:30:03,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 22:30:03,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 22:30:03,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 22:30:03,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:30:03" (1/1) ... [2021-04-28 22:30:03,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:30:03" (1/1) ... [2021-04-28 22:30:03,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 22:30:03,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 22:30:03,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 22:30:03,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 22:30:03,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:30:03" (1/1) ... [2021-04-28 22:30:03,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:30:03" (1/1) ... [2021-04-28 22:30:03,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:30:03" (1/1) ... [2021-04-28 22:30:03,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:30:03" (1/1) ... [2021-04-28 22:30:04,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:30:03" (1/1) ... [2021-04-28 22:30:04,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:30:03" (1/1) ... [2021-04-28 22:30:04,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:30:03" (1/1) ... [2021-04-28 22:30:04,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 22:30:04,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 22:30:04,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 22:30:04,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 22:30:04,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:30:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:30:04,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 22:30:04,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 22:30:04,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 22:30:04,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 22:30:04,132 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 22:30:04,132 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 22:30:04,132 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 22:30:04,132 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 22:30:04,133 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 22:30:04,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 22:30:04,133 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 22:30:04,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 22:30:04,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 22:30:04,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 22:30:04,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 22:30:04,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 22:30:04,136 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 22:30:06,232 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 22:30:06,232 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 22:30:06,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:30:06 BoogieIcfgContainer [2021-04-28 22:30:06,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 22:30:06,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 22:30:06,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 22:30:06,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 22:30:06,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 10:30:02" (1/3) ... [2021-04-28 22:30:06,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6518e48e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:30:06, skipping insertion in model container [2021-04-28 22:30:06,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:30:03" (2/3) ... [2021-04-28 22:30:06,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6518e48e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:30:06, skipping insertion in model container [2021-04-28 22:30:06,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:30:06" (3/3) ... [2021-04-28 22:30:06,244 INFO L111 eAbstractionObserver]: Analyzing ICFG mix055_tso.opt.i [2021-04-28 22:30:06,253 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 22:30:06,258 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 22:30:06,263 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 22:30:06,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,320 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,320 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,320 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,320 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,320 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,321 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,321 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,321 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,321 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,322 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,323 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,323 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,323 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,323 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,323 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,323 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,324 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,324 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,324 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,325 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,325 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,326 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,326 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,326 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,326 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,327 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,327 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,327 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,328 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,328 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,329 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,329 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,329 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,329 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,330 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,330 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,331 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,331 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,331 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,331 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,331 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,331 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,332 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,332 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,332 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,333 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,333 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,333 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,333 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,334 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,334 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,334 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,334 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,334 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,334 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,335 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,335 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,335 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,335 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,336 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,336 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,337 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,337 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,337 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,338 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,338 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,338 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,338 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,338 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,338 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,339 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,340 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,340 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,341 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,341 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,341 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,341 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,342 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,342 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,343 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,343 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,345 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,346 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,346 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,346 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,348 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,348 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,349 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,349 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,349 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,349 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,350 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,351 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,353 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,359 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,360 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,360 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,366 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,367 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,367 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,367 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,368 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,368 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,368 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,368 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,368 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,370 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,372 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:30:06,373 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 22:30:06,400 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 22:30:06,439 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 22:30:06,439 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 22:30:06,440 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 22:30:06,440 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 22:30:06,440 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 22:30:06,440 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 22:30:06,440 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 22:30:06,440 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 22:30:06,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 246 flow [2021-04-28 22:30:06,511 INFO L129 PetriNetUnfolder]: 2/109 cut-off events. [2021-04-28 22:30:06,512 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:30:06,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 109 events. 2/109 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. 0/105 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-04-28 22:30:06,517 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 113 transitions, 246 flow [2021-04-28 22:30:06,524 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 109 transitions, 230 flow [2021-04-28 22:30:06,526 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:30:06,544 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 109 transitions, 230 flow [2021-04-28 22:30:06,548 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 109 transitions, 230 flow [2021-04-28 22:30:06,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 120 places, 109 transitions, 230 flow [2021-04-28 22:30:06,580 INFO L129 PetriNetUnfolder]: 2/109 cut-off events. [2021-04-28 22:30:06,580 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:30:06,581 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 109 events. 2/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-04-28 22:30:06,586 INFO L146 LiptonReduction]: Number of co-enabled transitions 2406 [2021-04-28 22:30:11,278 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2021-04-28 22:30:11,807 WARN L205 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:30:14,102 WARN L205 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:30:15,188 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:30:16,123 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:30:16,250 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 22:30:16,818 WARN L205 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 22:30:17,035 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 22:30:17,580 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-04-28 22:30:19,738 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:30:20,265 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:30:22,616 WARN L205 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 312 DAG size of output: 267 [2021-04-28 22:30:23,702 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-28 22:30:24,972 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 22:30:25,594 WARN L205 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 22:30:28,228 WARN L205 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 22:30:29,419 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 22:30:30,765 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 22:30:31,357 WARN L205 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:30:34,103 WARN L205 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 22:30:35,339 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:30:38,326 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 231 DAG size of output: 191 [2021-04-28 22:30:38,972 WARN L205 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:30:41,945 WARN L205 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 315 DAG size of output: 271 [2021-04-28 22:30:43,310 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:30:44,906 WARN L205 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 231 DAG size of output: 191 [2021-04-28 22:30:46,291 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2021-04-28 22:30:49,509 WARN L205 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 315 DAG size of output: 271 [2021-04-28 22:30:50,942 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:30:52,619 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 22:30:53,322 WARN L205 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 22:30:56,872 WARN L205 SmtUtils]: Spent 3.55 s on a formula simplification. DAG size of input: 314 DAG size of output: 269 [2021-04-28 22:30:58,439 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 266 [2021-04-28 22:31:00,189 WARN L205 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2021-04-28 22:31:00,935 WARN L205 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:31:04,389 WARN L205 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:31:06,010 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:31:12,183 WARN L205 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 231 DAG size of output: 190 [2021-04-28 22:31:12,993 WARN L205 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:31:16,802 WARN L205 SmtUtils]: Spent 3.80 s on a formula simplification. DAG size of input: 315 DAG size of output: 271 [2021-04-28 22:31:18,606 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:31:20,571 WARN L205 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 22:31:21,432 WARN L205 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 22:31:25,476 WARN L205 SmtUtils]: Spent 4.04 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 22:31:27,306 WARN L205 SmtUtils]: Spent 1.83 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:31:29,390 WARN L205 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:31:30,342 WARN L205 SmtUtils]: Spent 948.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:31:34,712 WARN L205 SmtUtils]: Spent 4.37 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:31:36,669 WARN L205 SmtUtils]: Spent 1.95 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:31:39,868 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:31:39,973 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:31:40,089 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:31:40,203 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:31:40,341 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:31:40,479 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:31:40,616 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:31:40,754 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:31:40,864 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:31:40,972 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:31:41,073 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:31:41,176 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:31:41,340 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:31:41,495 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:31:41,638 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:31:41,785 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:31:41,921 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:31:42,066 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:31:42,217 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:31:42,338 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:31:42,455 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:31:42,573 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:31:42,695 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:31:42,817 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:31:42,938 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:31:43,062 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:31:43,184 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:31:43,313 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:31:43,431 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:31:43,547 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:31:43,673 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:31:43,802 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:31:44,469 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 22:31:44,591 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 22:31:44,712 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 22:31:44,818 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 22:31:45,510 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:31:45,624 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:31:45,737 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:31:45,852 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:31:46,323 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:31:46,449 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:31:46,587 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:31:46,714 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:31:48,191 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:31:48,310 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:31:48,430 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:31:48,550 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:31:48,659 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:31:48,768 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:31:48,876 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:31:48,984 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:31:49,439 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:31:49,570 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:31:49,702 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:31:49,835 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:31:49,938 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:31:50,041 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:31:50,157 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:31:50,259 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 22:31:50,368 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:31:50,477 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:31:50,586 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:31:50,693 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:31:50,877 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:31:51,064 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:31:51,234 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:31:51,407 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:31:51,564 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:31:51,722 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:31:51,870 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:31:52,016 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:31:52,171 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:31:52,333 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:31:52,508 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:31:52,675 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:31:52,864 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:31:53,053 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:31:53,240 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:31:53,435 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:31:53,615 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:31:53,804 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:31:53,980 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:31:54,153 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:31:54,366 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:31:54,568 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:31:54,789 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:31:55,003 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:31:55,170 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:31:55,334 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:31:55,526 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:31:55,700 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:31:55,893 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:31:56,088 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:31:56,267 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:31:56,443 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:31:56,644 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:31:56,844 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:31:57,050 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:31:57,267 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:31:57,440 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:31:57,578 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:31:57,717 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:31:57,854 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:31:58,074 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:31:58,296 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:31:58,516 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:31:58,730 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:31:58,867 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:31:59,017 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:31:59,156 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:31:59,294 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:31:59,497 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:31:59,697 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:31:59,897 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:32:00,098 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:32:00,237 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:32:00,377 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:32:00,516 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:32:00,655 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:32:00,794 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:32:00,933 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:32:01,072 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:32:01,210 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:32:01,480 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:32:01,758 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:32:02,021 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:32:02,278 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:32:02,517 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:32:02,769 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:32:03,005 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:32:03,256 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:32:03,536 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:32:03,816 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:32:04,108 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:32:04,405 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:32:04,625 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:32:04,840 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:32:05,075 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:32:05,306 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:32:05,519 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:32:05,739 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:32:05,959 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:32:06,188 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:32:06,486 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:32:06,788 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:32:07,122 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:32:07,455 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:32:07,740 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:32:08,030 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:32:08,319 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:32:08,603 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:32:08,840 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:32:09,061 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:32:09,298 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:32:09,529 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:32:09,850 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:32:10,175 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:32:10,490 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:32:10,811 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:32:11,066 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:32:11,311 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:32:11,575 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:32:11,826 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:32:12,097 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:32:12,376 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:32:12,676 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:32:12,972 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:32:13,277 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:32:13,577 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:32:13,885 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:32:14,203 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:32:14,446 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:32:14,686 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:32:14,933 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:32:15,183 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:32:15,477 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:32:15,772 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:32:16,085 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:32:16,382 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:32:17,319 WARN L205 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 22:32:17,736 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 22:32:18,637 WARN L205 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 22:32:19,054 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 22:32:19,399 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:19,740 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:20,075 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:20,418 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:20,764 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:21,113 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:21,442 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:21,772 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:22,090 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:22,412 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:22,736 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:23,060 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:23,394 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:23,721 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:24,076 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:24,419 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:32:25,321 WARN L205 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 22:32:25,747 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 22:32:26,660 WARN L205 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 22:32:27,118 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 22:32:27,358 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:32:27,598 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:32:27,827 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:32:28,057 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:32:28,121 INFO L158 LiptonReduction]: Checked pairs total: 23607 [2021-04-28 22:32:28,121 INFO L160 LiptonReduction]: Total number of compositions: 242 [2021-04-28 22:32:28,127 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 141602 [2021-04-28 22:32:28,156 INFO L129 PetriNetUnfolder]: 2/98 cut-off events. [2021-04-28 22:32:28,156 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:32:28,156 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:32:28,157 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:32:28,158 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:32:28,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:32:28,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1113402049, now seen corresponding path program 1 times [2021-04-28 22:32:28,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:32:28,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213907440] [2021-04-28 22:32:28,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:32:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:32:28,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:28,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:32:28,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:32:28,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213907440] [2021-04-28 22:32:28,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:32:28,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:32:28,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778523389] [2021-04-28 22:32:28,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:32:28,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:32:28,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:32:28,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:32:28,521 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 355 [2021-04-28 22:32:28,527 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 137 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:28,527 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:32:28,528 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 355 [2021-04-28 22:32:28,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:32:29,016 INFO L129 PetriNetUnfolder]: 114/405 cut-off events. [2021-04-28 22:32:29,016 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:32:29,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 405 events. 114/405 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 2811 event pairs, 48 based on Foata normal form. 6/168 useless extension candidates. Maximal degree in co-relation 572. Up to 167 conditions per place. [2021-04-28 22:32:29,021 INFO L132 encePairwiseOnDemand]: 339/355 looper letters, 7 selfloop transitions, 2 changer transitions 100/149 dead transitions. [2021-04-28 22:32:29,022 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 149 transitions, 402 flow [2021-04-28 22:32:29,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:32:29,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:32:29,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 883 transitions. [2021-04-28 22:32:29,047 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8291079812206573 [2021-04-28 22:32:29,048 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 883 transitions. [2021-04-28 22:32:29,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 883 transitions. [2021-04-28 22:32:29,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:32:29,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 883 transitions. [2021-04-28 22:32:29,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:29,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:29,074 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:29,077 INFO L185 Difference]: Start difference. First operand has 148 places, 137 transitions, 286 flow. Second operand 3 states and 883 transitions. [2021-04-28 22:32:29,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 149 transitions, 402 flow [2021-04-28 22:32:29,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 149 transitions, 398 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 22:32:29,085 INFO L241 Difference]: Finished difference. Result has 143 places, 46 transitions, 104 flow [2021-04-28 22:32:29,088 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=143, PETRI_TRANSITIONS=46} [2021-04-28 22:32:29,089 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -5 predicate places. [2021-04-28 22:32:29,089 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:32:29,089 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 46 transitions, 104 flow [2021-04-28 22:32:29,090 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 46 transitions, 104 flow [2021-04-28 22:32:29,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 46 transitions, 104 flow [2021-04-28 22:32:29,097 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2021-04-28 22:32:29,097 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:32:29,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 46 events. 0/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 163 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 22:32:29,099 INFO L146 LiptonReduction]: Number of co-enabled transitions 1278 [2021-04-28 22:32:29,457 INFO L158 LiptonReduction]: Checked pairs total: 1274 [2021-04-28 22:32:29,457 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:32:29,458 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 369 [2021-04-28 22:32:29,460 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 104 flow [2021-04-28 22:32:29,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:29,461 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:32:29,461 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:32:29,461 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 22:32:29,462 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:32:29,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:32:29,462 INFO L82 PathProgramCache]: Analyzing trace with hash 532558527, now seen corresponding path program 1 times [2021-04-28 22:32:29,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:32:29,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902829970] [2021-04-28 22:32:29,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:32:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:32:29,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:29,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:32:29,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:32:29,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902829970] [2021-04-28 22:32:29,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:32:29,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:32:29,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014401480] [2021-04-28 22:32:29,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:32:29,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:32:29,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:32:29,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:32:29,610 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 355 [2021-04-28 22:32:29,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:29,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:32:29,612 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 355 [2021-04-28 22:32:29,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:32:29,638 INFO L129 PetriNetUnfolder]: 3/60 cut-off events. [2021-04-28 22:32:29,638 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:32:29,639 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 60 events. 3/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 207 event pairs, 1 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 74. Up to 10 conditions per place. [2021-04-28 22:32:29,640 INFO L132 encePairwiseOnDemand]: 351/355 looper letters, 3 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2021-04-28 22:32:29,640 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 48 transitions, 120 flow [2021-04-28 22:32:29,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:32:29,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:32:29,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 766 transitions. [2021-04-28 22:32:29,646 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7192488262910798 [2021-04-28 22:32:29,646 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 766 transitions. [2021-04-28 22:32:29,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 766 transitions. [2021-04-28 22:32:29,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:32:29,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 766 transitions. [2021-04-28 22:32:29,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:29,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:29,655 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:29,655 INFO L185 Difference]: Start difference. First operand has 57 places, 46 transitions, 104 flow. Second operand 3 states and 766 transitions. [2021-04-28 22:32:29,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 48 transitions, 120 flow [2021-04-28 22:32:29,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 48 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:32:29,657 INFO L241 Difference]: Finished difference. Result has 58 places, 48 transitions, 119 flow [2021-04-28 22:32:29,658 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2021-04-28 22:32:29,658 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -90 predicate places. [2021-04-28 22:32:29,658 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:32:29,659 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 48 transitions, 119 flow [2021-04-28 22:32:29,659 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 48 transitions, 119 flow [2021-04-28 22:32:29,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 48 transitions, 119 flow [2021-04-28 22:32:29,669 INFO L129 PetriNetUnfolder]: 3/58 cut-off events. [2021-04-28 22:32:29,669 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:32:29,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 58 events. 3/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 202 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 73. Up to 10 conditions per place. [2021-04-28 22:32:29,672 INFO L146 LiptonReduction]: Number of co-enabled transitions 1388 [2021-04-28 22:32:29,678 INFO L158 LiptonReduction]: Checked pairs total: 1056 [2021-04-28 22:32:29,678 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:32:29,678 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-04-28 22:32:29,680 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 119 flow [2021-04-28 22:32:29,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:29,681 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:32:29,681 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:32:29,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 22:32:29,682 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:32:29,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:32:29,682 INFO L82 PathProgramCache]: Analyzing trace with hash 2039061783, now seen corresponding path program 1 times [2021-04-28 22:32:29,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:32:29,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681942891] [2021-04-28 22:32:29,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:32:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:32:29,893 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-04-28 22:32:29,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 22:32:29,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:29,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 22:32:29,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:32:29,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681942891] [2021-04-28 22:32:29,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:32:29,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:32:29,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637776418] [2021-04-28 22:32:29,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:32:29,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:32:29,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:32:29,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:32:29,953 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 355 [2021-04-28 22:32:29,954 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 119 flow. Second operand has 4 states, 4 states have (on average 217.75) internal successors, (871), 4 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:29,954 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:32:29,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 355 [2021-04-28 22:32:29,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:32:30,090 INFO L129 PetriNetUnfolder]: 32/153 cut-off events. [2021-04-28 22:32:30,091 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2021-04-28 22:32:30,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 153 events. 32/153 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 700 event pairs, 6 based on Foata normal form. 6/105 useless extension candidates. Maximal degree in co-relation 237. Up to 37 conditions per place. [2021-04-28 22:32:30,094 INFO L132 encePairwiseOnDemand]: 350/355 looper letters, 10 selfloop transitions, 4 changer transitions 0/55 dead transitions. [2021-04-28 22:32:30,094 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 55 transitions, 161 flow [2021-04-28 22:32:30,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:32:30,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:32:30,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 884 transitions. [2021-04-28 22:32:30,101 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6225352112676056 [2021-04-28 22:32:30,101 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 884 transitions. [2021-04-28 22:32:30,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 884 transitions. [2021-04-28 22:32:30,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:32:30,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 884 transitions. [2021-04-28 22:32:30,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:30,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 355.0) internal successors, (1775), 5 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:30,110 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 355.0) internal successors, (1775), 5 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:30,111 INFO L185 Difference]: Start difference. First operand has 58 places, 48 transitions, 119 flow. Second operand 4 states and 884 transitions. [2021-04-28 22:32:30,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 55 transitions, 161 flow [2021-04-28 22:32:30,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 55 transitions, 158 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:32:30,113 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 141 flow [2021-04-28 22:32:30,113 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=141, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2021-04-28 22:32:30,114 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -86 predicate places. [2021-04-28 22:32:30,114 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:32:30,114 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 50 transitions, 141 flow [2021-04-28 22:32:30,114 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 50 transitions, 141 flow [2021-04-28 22:32:30,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 141 flow [2021-04-28 22:32:30,132 INFO L129 PetriNetUnfolder]: 11/94 cut-off events. [2021-04-28 22:32:30,132 INFO L130 PetriNetUnfolder]: For 41/47 co-relation queries the response was YES. [2021-04-28 22:32:30,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 94 events. 11/94 cut-off events. For 41/47 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 411 event pairs, 4 based on Foata normal form. 1/56 useless extension candidates. Maximal degree in co-relation 150. Up to 20 conditions per place. [2021-04-28 22:32:30,136 INFO L146 LiptonReduction]: Number of co-enabled transitions 1482 [2021-04-28 22:32:30,573 INFO L158 LiptonReduction]: Checked pairs total: 604 [2021-04-28 22:32:30,574 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:32:30,574 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 460 [2021-04-28 22:32:30,576 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 141 flow [2021-04-28 22:32:30,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 217.75) internal successors, (871), 4 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:30,577 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:32:30,577 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:32:30,577 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 22:32:30,577 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:32:30,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:32:30,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1965136021, now seen corresponding path program 1 times [2021-04-28 22:32:30,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:32:30,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162525150] [2021-04-28 22:32:30,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:32:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:32:30,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:30,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:32:30,683 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:32:30,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:32:30,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:30,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:32:30,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:32:30,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162525150] [2021-04-28 22:32:30,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:32:30,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:32:30,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459787874] [2021-04-28 22:32:30,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:32:30,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:32:30,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:32:30,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:32:30,717 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 355 [2021-04-28 22:32:30,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 265.75) internal successors, (1063), 4 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:30,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:32:30,720 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 355 [2021-04-28 22:32:30,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:32:34,131 INFO L129 PetriNetUnfolder]: 17679/25444 cut-off events. [2021-04-28 22:32:34,132 INFO L130 PetriNetUnfolder]: For 2021/2240 co-relation queries the response was YES. [2021-04-28 22:32:34,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51952 conditions, 25444 events. 17679/25444 cut-off events. For 2021/2240 co-relation queries the response was YES. Maximal size of possible extension queue 4273. Compared 213414 event pairs, 9934 based on Foata normal form. 475/7682 useless extension candidates. Maximal degree in co-relation 51939. Up to 15973 conditions per place. [2021-04-28 22:32:34,403 INFO L132 encePairwiseOnDemand]: 335/355 looper letters, 34 selfloop transitions, 33 changer transitions 0/94 dead transitions. [2021-04-28 22:32:34,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 94 transitions, 363 flow [2021-04-28 22:32:34,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:32:34,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:32:34,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1391 transitions. [2021-04-28 22:32:34,412 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.783661971830986 [2021-04-28 22:32:34,412 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1391 transitions. [2021-04-28 22:32:34,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1391 transitions. [2021-04-28 22:32:34,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:32:34,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1391 transitions. [2021-04-28 22:32:34,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 278.2) internal successors, (1391), 5 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:34,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 355.0) internal successors, (2130), 6 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:34,425 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 355.0) internal successors, (2130), 6 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:34,425 INFO L185 Difference]: Start difference. First operand has 62 places, 50 transitions, 141 flow. Second operand 5 states and 1391 transitions. [2021-04-28 22:32:34,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 94 transitions, 363 flow [2021-04-28 22:32:34,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 94 transitions, 358 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:32:34,430 INFO L241 Difference]: Finished difference. Result has 67 places, 81 transitions, 382 flow [2021-04-28 22:32:34,431 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=382, PETRI_PLACES=67, PETRI_TRANSITIONS=81} [2021-04-28 22:32:34,431 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -81 predicate places. [2021-04-28 22:32:34,431 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:32:34,431 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 81 transitions, 382 flow [2021-04-28 22:32:34,432 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 81 transitions, 382 flow [2021-04-28 22:32:34,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 81 transitions, 382 flow [2021-04-28 22:32:37,102 INFO L129 PetriNetUnfolder]: 15934/23218 cut-off events. [2021-04-28 22:32:37,102 INFO L130 PetriNetUnfolder]: For 5064/13577 co-relation queries the response was YES. [2021-04-28 22:32:37,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66813 conditions, 23218 events. 15934/23218 cut-off events. For 5064/13577 co-relation queries the response was YES. Maximal size of possible extension queue 3950. Compared 191094 event pairs, 9246 based on Foata normal form. 47/6824 useless extension candidates. Maximal degree in co-relation 66799. Up to 21920 conditions per place. [2021-04-28 22:32:37,520 INFO L146 LiptonReduction]: Number of co-enabled transitions 2154 [2021-04-28 22:32:37,677 INFO L158 LiptonReduction]: Checked pairs total: 1053 [2021-04-28 22:32:37,677 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:32:37,677 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3246 [2021-04-28 22:32:37,679 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 81 transitions, 382 flow [2021-04-28 22:32:37,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 265.75) internal successors, (1063), 4 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:37,681 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:32:37,681 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:32:37,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 22:32:37,681 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:32:37,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:32:37,682 INFO L82 PathProgramCache]: Analyzing trace with hash -218292691, now seen corresponding path program 1 times [2021-04-28 22:32:37,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:32:37,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579120960] [2021-04-28 22:32:37,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:32:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:32:37,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:37,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:32:37,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:37,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:32:37,861 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:32:37,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:32:37,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:37,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:32:37,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:32:37,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579120960] [2021-04-28 22:32:37,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:32:37,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:32:37,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9459352] [2021-04-28 22:32:37,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:32:37,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:32:37,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:32:37,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:32:37,895 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 355 [2021-04-28 22:32:37,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 81 transitions, 382 flow. Second operand has 5 states, 5 states have (on average 265.8) internal successors, (1329), 5 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:37,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:32:37,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 355 [2021-04-28 22:32:37,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:32:41,650 INFO L129 PetriNetUnfolder]: 19773/29791 cut-off events. [2021-04-28 22:32:41,651 INFO L130 PetriNetUnfolder]: For 8858/58220 co-relation queries the response was YES. [2021-04-28 22:32:41,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114258 conditions, 29791 events. 19773/29791 cut-off events. For 8858/58220 co-relation queries the response was YES. Maximal size of possible extension queue 5598. Compared 263781 event pairs, 4150 based on Foata normal form. 510/9930 useless extension candidates. Maximal degree in co-relation 114242. Up to 27572 conditions per place. [2021-04-28 22:32:42,039 INFO L132 encePairwiseOnDemand]: 335/355 looper letters, 35 selfloop transitions, 64 changer transitions 0/126 dead transitions. [2021-04-28 22:32:42,039 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 126 transitions, 829 flow [2021-04-28 22:32:42,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 22:32:42,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 22:32:42,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1951 transitions. [2021-04-28 22:32:42,049 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7851106639839034 [2021-04-28 22:32:42,049 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1951 transitions. [2021-04-28 22:32:42,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1951 transitions. [2021-04-28 22:32:42,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:32:42,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1951 transitions. [2021-04-28 22:32:42,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 278.7142857142857) internal successors, (1951), 7 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:42,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 355.0) internal successors, (2840), 8 states have internal predecessors, (2840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:42,072 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 355.0) internal successors, (2840), 8 states have internal predecessors, (2840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:42,072 INFO L185 Difference]: Start difference. First operand has 67 places, 81 transitions, 382 flow. Second operand 7 states and 1951 transitions. [2021-04-28 22:32:42,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 126 transitions, 829 flow [2021-04-28 22:32:42,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 126 transitions, 829 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 22:32:42,170 INFO L241 Difference]: Finished difference. Result has 76 places, 112 transitions, 824 flow [2021-04-28 22:32:42,170 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=824, PETRI_PLACES=76, PETRI_TRANSITIONS=112} [2021-04-28 22:32:42,170 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -72 predicate places. [2021-04-28 22:32:42,171 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:32:42,171 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 112 transitions, 824 flow [2021-04-28 22:32:42,171 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 112 transitions, 824 flow [2021-04-28 22:32:42,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 112 transitions, 824 flow [2021-04-28 22:32:44,888 INFO L129 PetriNetUnfolder]: 18025/27526 cut-off events. [2021-04-28 22:32:44,888 INFO L130 PetriNetUnfolder]: For 24674/63481 co-relation queries the response was YES. [2021-04-28 22:32:45,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130075 conditions, 27526 events. 18025/27526 cut-off events. For 24674/63481 co-relation queries the response was YES. Maximal size of possible extension queue 5102. Compared 245020 event pairs, 4255 based on Foata normal form. 57/8341 useless extension candidates. Maximal degree in co-relation 130056. Up to 26051 conditions per place. [2021-04-28 22:32:45,395 INFO L146 LiptonReduction]: Number of co-enabled transitions 3066 [2021-04-28 22:32:45,839 INFO L158 LiptonReduction]: Checked pairs total: 2006 [2021-04-28 22:32:45,839 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:32:45,839 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3668 [2021-04-28 22:32:45,841 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 112 transitions, 824 flow [2021-04-28 22:32:45,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 265.8) internal successors, (1329), 5 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:45,842 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:32:45,842 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:32:45,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 22:32:45,843 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:32:45,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:32:45,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1530850539, now seen corresponding path program 1 times [2021-04-28 22:32:45,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:32:45,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921358951] [2021-04-28 22:32:45,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:32:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:32:45,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:45,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:32:45,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:45,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:32:45,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:32:45,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:32:45,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:32:45,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921358951] [2021-04-28 22:32:45,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:32:45,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:32:45,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637177593] [2021-04-28 22:32:45,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:32:45,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:32:45,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:32:45,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:32:45,999 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 355 [2021-04-28 22:32:46,000 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 112 transitions, 824 flow. Second operand has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:46,000 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:32:46,000 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 355 [2021-04-28 22:32:46,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:32:51,992 INFO L129 PetriNetUnfolder]: 36244/55100 cut-off events. [2021-04-28 22:32:51,992 INFO L130 PetriNetUnfolder]: For 62946/408269 co-relation queries the response was YES. [2021-04-28 22:32:52,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 261547 conditions, 55100 events. 36244/55100 cut-off events. For 62946/408269 co-relation queries the response was YES. Maximal size of possible extension queue 11601. Compared 519851 event pairs, 8309 based on Foata normal form. 468/17083 useless extension candidates. Maximal degree in co-relation 261526. Up to 52499 conditions per place. [2021-04-28 22:32:52,417 INFO L132 encePairwiseOnDemand]: 352/355 looper letters, 4 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2021-04-28 22:32:52,417 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 114 transitions, 846 flow [2021-04-28 22:32:52,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:32:52,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:32:52,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 991 transitions. [2021-04-28 22:32:52,427 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6978873239436619 [2021-04-28 22:32:52,428 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 991 transitions. [2021-04-28 22:32:52,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 991 transitions. [2021-04-28 22:32:52,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:32:52,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 991 transitions. [2021-04-28 22:32:52,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 247.75) internal successors, (991), 4 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:52,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 355.0) internal successors, (1775), 5 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:52,439 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 355.0) internal successors, (1775), 5 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:32:52,440 INFO L185 Difference]: Start difference. First operand has 76 places, 112 transitions, 824 flow. Second operand 4 states and 991 transitions. [2021-04-28 22:32:52,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 114 transitions, 846 flow [2021-04-28 22:32:54,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 114 transitions, 684 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 22:32:54,373 INFO L241 Difference]: Finished difference. Result has 78 places, 113 transitions, 675 flow [2021-04-28 22:32:54,373 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=675, PETRI_PLACES=78, PETRI_TRANSITIONS=113} [2021-04-28 22:32:54,373 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -70 predicate places. [2021-04-28 22:32:54,374 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:32:54,374 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 113 transitions, 675 flow [2021-04-28 22:32:54,374 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 113 transitions, 675 flow [2021-04-28 22:32:54,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 113 transitions, 675 flow [2021-04-28 22:32:59,770 INFO L129 PetriNetUnfolder]: 36011/54725 cut-off events. [2021-04-28 22:32:59,771 INFO L130 PetriNetUnfolder]: For 66855/92614 co-relation queries the response was YES. [2021-04-28 22:33:00,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 246358 conditions, 54725 events. 36011/54725 cut-off events. For 66855/92614 co-relation queries the response was YES. Maximal size of possible extension queue 9847. Compared 524112 event pairs, 8285 based on Foata normal form. 61/16121 useless extension candidates. Maximal degree in co-relation 246338. Up to 46969 conditions per place. [2021-04-28 22:33:00,435 INFO L146 LiptonReduction]: Number of co-enabled transitions 3176 [2021-04-28 22:33:06,924 INFO L158 LiptonReduction]: Checked pairs total: 1679 [2021-04-28 22:33:06,924 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:33:06,924 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12550 [2021-04-28 22:33:06,926 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 113 transitions, 675 flow [2021-04-28 22:33:06,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:33:06,927 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:33:06,927 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:33:06,927 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 22:33:06,927 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:33:06,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:33:06,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1220380961, now seen corresponding path program 2 times [2021-04-28 22:33:06,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:33:06,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565496357] [2021-04-28 22:33:06,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:33:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:33:06,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:33:06,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:33:06,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:33:06,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:33:06,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:33:06,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565496357] [2021-04-28 22:33:06,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:33:06,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:33:06,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332777276] [2021-04-28 22:33:06,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:33:06,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:33:06,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:33:06,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:33:06,998 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 355 [2021-04-28 22:33:06,999 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 113 transitions, 675 flow. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:33:06,999 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:33:06,999 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 355 [2021-04-28 22:33:06,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:33:16,862 INFO L129 PetriNetUnfolder]: 63385/94178 cut-off events. [2021-04-28 22:33:16,863 INFO L130 PetriNetUnfolder]: For 178419/342808 co-relation queries the response was YES. [2021-04-28 22:33:17,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 431101 conditions, 94178 events. 63385/94178 cut-off events. For 178419/342808 co-relation queries the response was YES. Maximal size of possible extension queue 19422. Compared 904225 event pairs, 15401 based on Foata normal form. 514/27693 useless extension candidates. Maximal degree in co-relation 431079. Up to 82390 conditions per place. [2021-04-28 22:33:17,452 INFO L132 encePairwiseOnDemand]: 352/355 looper letters, 3 selfloop transitions, 3 changer transitions 6/113 dead transitions. [2021-04-28 22:33:17,452 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 113 transitions, 687 flow [2021-04-28 22:33:17,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:33:17,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:33:17,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 765 transitions. [2021-04-28 22:33:17,457 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7183098591549296 [2021-04-28 22:33:17,458 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 765 transitions. [2021-04-28 22:33:17,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 765 transitions. [2021-04-28 22:33:17,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:33:17,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 765 transitions. [2021-04-28 22:33:17,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:33:17,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:33:17,464 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:33:17,464 INFO L185 Difference]: Start difference. First operand has 78 places, 113 transitions, 675 flow. Second operand 3 states and 765 transitions. [2021-04-28 22:33:17,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 113 transitions, 687 flow [2021-04-28 22:33:20,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 113 transitions, 686 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:33:20,541 INFO L241 Difference]: Finished difference. Result has 80 places, 107 transitions, 643 flow [2021-04-28 22:33:20,541 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=643, PETRI_PLACES=80, PETRI_TRANSITIONS=107} [2021-04-28 22:33:20,541 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -68 predicate places. [2021-04-28 22:33:20,541 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:33:20,541 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 107 transitions, 643 flow [2021-04-28 22:33:20,542 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 107 transitions, 643 flow [2021-04-28 22:33:20,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 107 transitions, 643 flow [2021-04-28 22:33:29,154 INFO L129 PetriNetUnfolder]: 55483/85129 cut-off events. [2021-04-28 22:33:29,154 INFO L130 PetriNetUnfolder]: For 120286/203555 co-relation queries the response was YES. [2021-04-28 22:33:29,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 392089 conditions, 85129 events. 55483/85129 cut-off events. For 120286/203555 co-relation queries the response was YES. Maximal size of possible extension queue 15351. Compared 869330 event pairs, 15302 based on Foata normal form. 62/24808 useless extension candidates. Maximal degree in co-relation 392068. Up to 76564 conditions per place. [2021-04-28 22:33:30,214 INFO L146 LiptonReduction]: Number of co-enabled transitions 3030 [2021-04-28 22:33:34,750 INFO L158 LiptonReduction]: Checked pairs total: 1565 [2021-04-28 22:33:34,750 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:33:34,750 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14209 [2021-04-28 22:33:34,752 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 107 transitions, 643 flow [2021-04-28 22:33:34,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:33:34,752 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:33:34,752 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:33:34,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 22:33:34,753 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:33:34,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:33:34,753 INFO L82 PathProgramCache]: Analyzing trace with hash -353763999, now seen corresponding path program 1 times [2021-04-28 22:33:34,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:33:34,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360656422] [2021-04-28 22:33:34,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:33:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:33:34,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:33:34,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:33:34,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:33:34,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:33:34,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:33:34,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:33:34,861 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:33:34,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:33:34,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:33:34,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:33:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:33:34,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360656422] [2021-04-28 22:33:34,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:33:34,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:33:34,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488091990] [2021-04-28 22:33:34,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:33:34,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:33:34,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:33:34,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:33:34,895 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 355 [2021-04-28 22:33:34,896 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 107 transitions, 643 flow. Second operand has 6 states, 6 states have (on average 265.8333333333333) internal successors, (1595), 6 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:33:34,897 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:33:34,897 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 355 [2021-04-28 22:33:34,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:33:45,822 INFO L129 PetriNetUnfolder]: 60844/96950 cut-off events. [2021-04-28 22:33:45,823 INFO L130 PetriNetUnfolder]: For 103320/728219 co-relation queries the response was YES. [2021-04-28 22:33:46,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 537030 conditions, 96950 events. 60844/96950 cut-off events. For 103320/728219 co-relation queries the response was YES. Maximal size of possible extension queue 20995. Compared 1049993 event pairs, 2621 based on Foata normal form. 1526/31227 useless extension candidates. Maximal degree in co-relation 537007. Up to 85324 conditions per place. [2021-04-28 22:33:46,415 INFO L132 encePairwiseOnDemand]: 335/355 looper letters, 24 selfloop transitions, 86 changer transitions 15/153 dead transitions. [2021-04-28 22:33:46,415 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 153 transitions, 1302 flow [2021-04-28 22:33:46,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 22:33:46,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 22:33:46,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2505 transitions. [2021-04-28 22:33:46,425 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.784037558685446 [2021-04-28 22:33:46,425 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2505 transitions. [2021-04-28 22:33:46,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2505 transitions. [2021-04-28 22:33:46,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:33:46,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2505 transitions. [2021-04-28 22:33:46,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 278.3333333333333) internal successors, (2505), 9 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:33:46,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 355.0) internal successors, (3550), 10 states have internal predecessors, (3550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:33:46,443 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 355.0) internal successors, (3550), 10 states have internal predecessors, (3550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:33:46,443 INFO L185 Difference]: Start difference. First operand has 80 places, 107 transitions, 643 flow. Second operand 9 states and 2505 transitions. [2021-04-28 22:33:46,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 153 transitions, 1302 flow [2021-04-28 22:33:49,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 153 transitions, 1297 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 22:33:49,108 INFO L241 Difference]: Finished difference. Result has 90 places, 135 transitions, 1177 flow [2021-04-28 22:33:49,109 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1177, PETRI_PLACES=90, PETRI_TRANSITIONS=135} [2021-04-28 22:33:49,109 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -58 predicate places. [2021-04-28 22:33:49,109 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:33:49,109 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 135 transitions, 1177 flow [2021-04-28 22:33:49,110 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 135 transitions, 1177 flow [2021-04-28 22:33:49,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 135 transitions, 1177 flow [2021-04-28 22:33:56,374 INFO L129 PetriNetUnfolder]: 30356/62012 cut-off events. [2021-04-28 22:33:56,374 INFO L130 PetriNetUnfolder]: For 256149/446171 co-relation queries the response was YES. [2021-04-28 22:33:56,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 374979 conditions, 62012 events. 30356/62012 cut-off events. For 256149/446171 co-relation queries the response was YES. Maximal size of possible extension queue 12857. Compared 853957 event pairs, 2619 based on Foata normal form. 32/18492 useless extension candidates. Maximal degree in co-relation 374954. Up to 53176 conditions per place. [2021-04-28 22:33:57,316 INFO L146 LiptonReduction]: Number of co-enabled transitions 3462 [2021-04-28 22:34:00,513 INFO L158 LiptonReduction]: Checked pairs total: 2388 [2021-04-28 22:34:00,513 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:34:00,513 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11404 [2021-04-28 22:34:00,519 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 135 transitions, 1177 flow [2021-04-28 22:34:00,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 265.8333333333333) internal successors, (1595), 6 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:34:00,520 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:34:00,520 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] [2021-04-28 22:34:00,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 22:34:00,520 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:34:00,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:34:00,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1138311110, now seen corresponding path program 1 times [2021-04-28 22:34:00,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:34:00,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045081702] [2021-04-28 22:34:00,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:34:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:34:00,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:34:00,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:34:00,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:34:00,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:34:00,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:34:00,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:34:00,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:34:00,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:34:00,659 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:34:00,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:34:00,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:34:00,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:34:00,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:34:00,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045081702] [2021-04-28 22:34:00,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:34:00,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 22:34:00,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950647539] [2021-04-28 22:34:00,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 22:34:00,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:34:00,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 22:34:00,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 22:34:00,704 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 355 [2021-04-28 22:34:00,706 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 135 transitions, 1177 flow. Second operand has 7 states, 7 states have (on average 265.85714285714283) internal successors, (1861), 7 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:34:00,707 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:34:00,707 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 355 [2021-04-28 22:34:00,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:34:11,509 INFO L129 PetriNetUnfolder]: 33574/67925 cut-off events. [2021-04-28 22:34:11,509 INFO L130 PetriNetUnfolder]: For 160710/1424043 co-relation queries the response was YES. [2021-04-28 22:34:11,885 INFO L84 FinitePrefix]: Finished finitePrefix Result has 473339 conditions, 67925 events. 33574/67925 cut-off events. For 160710/1424043 co-relation queries the response was YES. Maximal size of possible extension queue 15308. Compared 920291 event pairs, 2 based on Foata normal form. 1141/20798 useless extension candidates. Maximal degree in co-relation 473312. Up to 57217 conditions per place. [2021-04-28 22:34:12,060 INFO L132 encePairwiseOnDemand]: 335/355 looper letters, 6 selfloop transitions, 104 changer transitions 20/158 dead transitions. [2021-04-28 22:34:12,061 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 158 transitions, 1653 flow [2021-04-28 22:34:12,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 22:34:12,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 22:34:12,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3038 transitions. [2021-04-28 22:34:12,072 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7779769526248399 [2021-04-28 22:34:12,072 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3038 transitions. [2021-04-28 22:34:12,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3038 transitions. [2021-04-28 22:34:12,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:34:12,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3038 transitions. [2021-04-28 22:34:12,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 276.1818181818182) internal successors, (3038), 11 states have internal predecessors, (3038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:34:12,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 355.0) internal successors, (4260), 12 states have internal predecessors, (4260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:34:12,094 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 355.0) internal successors, (4260), 12 states have internal predecessors, (4260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:34:12,094 INFO L185 Difference]: Start difference. First operand has 90 places, 135 transitions, 1177 flow. Second operand 11 states and 3038 transitions. [2021-04-28 22:34:12,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 158 transitions, 1653 flow [2021-04-28 22:36:31,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 158 transitions, 1345 flow, removed 99 selfloop flow, removed 6 redundant places. [2021-04-28 22:36:31,544 INFO L241 Difference]: Finished difference. Result has 97 places, 135 transitions, 1131 flow [2021-04-28 22:36:31,544 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1131, PETRI_PLACES=97, PETRI_TRANSITIONS=135} [2021-04-28 22:36:31,544 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -51 predicate places. [2021-04-28 22:36:31,544 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:36:31,545 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 135 transitions, 1131 flow [2021-04-28 22:36:31,545 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 135 transitions, 1131 flow [2021-04-28 22:36:31,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 135 transitions, 1131 flow [2021-04-28 22:36:35,107 INFO L129 PetriNetUnfolder]: 19804/41633 cut-off events. [2021-04-28 22:36:35,108 INFO L130 PetriNetUnfolder]: For 86077/140479 co-relation queries the response was YES. [2021-04-28 22:36:35,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189694 conditions, 41633 events. 19804/41633 cut-off events. For 86077/140479 co-relation queries the response was YES. Maximal size of possible extension queue 11592. Compared 570588 event pairs, 0 based on Foata normal form. 1/11710 useless extension candidates. Maximal degree in co-relation 189667. Up to 28080 conditions per place. [2021-04-28 22:36:35,914 INFO L146 LiptonReduction]: Number of co-enabled transitions 3360 [2021-04-28 22:36:59,089 INFO L158 LiptonReduction]: Checked pairs total: 2313 [2021-04-28 22:36:59,089 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:36:59,089 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27545 [2021-04-28 22:36:59,090 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 135 transitions, 1131 flow [2021-04-28 22:36:59,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 265.85714285714283) internal successors, (1861), 7 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:36:59,091 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:36:59,091 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:36:59,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 22:36:59,092 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:36:59,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:36:59,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1512704473, now seen corresponding path program 1 times [2021-04-28 22:36:59,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:36:59,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001709016] [2021-04-28 22:36:59,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:36:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:36:59,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:36:59,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:36:59,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:36:59,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:36:59,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:36:59,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:36:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:36:59,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001709016] [2021-04-28 22:36:59,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:36:59,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:36:59,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632373480] [2021-04-28 22:36:59,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:36:59,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:36:59,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:36:59,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:36:59,199 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 355 [2021-04-28 22:36:59,200 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 135 transitions, 1131 flow. Second operand has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:36:59,201 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:36:59,201 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 355 [2021-04-28 22:36:59,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:37:10,859 INFO L129 PetriNetUnfolder]: 45344/89542 cut-off events. [2021-04-28 22:37:10,859 INFO L130 PetriNetUnfolder]: For 582278/1194002 co-relation queries the response was YES. [2021-04-28 22:37:11,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 406170 conditions, 89542 events. 45344/89542 cut-off events. For 582278/1194002 co-relation queries the response was YES. Maximal size of possible extension queue 28038. Compared 1247159 event pairs, 5 based on Foata normal form. 82/22562 useless extension candidates. Maximal degree in co-relation 406141. Up to 61128 conditions per place. [2021-04-28 22:37:11,921 INFO L132 encePairwiseOnDemand]: 352/355 looper letters, 3 selfloop transitions, 2 changer transitions 0/136 dead transitions. [2021-04-28 22:37:11,921 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 136 transitions, 1143 flow [2021-04-28 22:37:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:37:11,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:37:11,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 970 transitions. [2021-04-28 22:37:11,929 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6830985915492958 [2021-04-28 22:37:11,929 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 970 transitions. [2021-04-28 22:37:11,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 970 transitions. [2021-04-28 22:37:11,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:37:11,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 970 transitions. [2021-04-28 22:37:11,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 242.5) internal successors, (970), 4 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:37:11,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 355.0) internal successors, (1775), 5 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:37:11,937 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 355.0) internal successors, (1775), 5 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:37:11,937 INFO L185 Difference]: Start difference. First operand has 95 places, 135 transitions, 1131 flow. Second operand 4 states and 970 transitions. [2021-04-28 22:37:11,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 136 transitions, 1143 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown