/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi002_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 19:45:51,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 19:45:51,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 19:45:51,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 19:45:51,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 19:45:51,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 19:45:51,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 19:45:51,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 19:45:51,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 19:45:51,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 19:45:51,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 19:45:51,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 19:45:51,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 19:45:51,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 19:45:51,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 19:45:51,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 19:45:51,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 19:45:51,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 19:45:51,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 19:45:51,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 19:45:51,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 19:45:51,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 19:45:51,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 19:45:51,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 19:45:51,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 19:45:51,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 19:45:51,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 19:45:51,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 19:45:51,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-03-24 19:45:51,290 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 19:45:51,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 19:45:51,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 19:45:51,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 19:45:51,295 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 19:45:51,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 19:45:51,295 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 19:45:51,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 19:45:51,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 19:45:51,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 19:45:51,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 19:45:51,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 19:45:51,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 19:45:51,296 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 19:45:51,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 19:45:51,297 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 19:45:51,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 19:45:51,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 19:45:51,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 19:45:51,297 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 19:45:51,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 19:45:51,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:45:51,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 19:45:51,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 19:45:51,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 19:45:51,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 19:45:51,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 19:45:51,299 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 19:45:51,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 19:45:51,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 19:45:51,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 19:45:51,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 19:45:51,646 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 19:45:51,646 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 19:45:51,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_pso.opt.i [2021-03-24 19:45:51,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/516076697/eaf6e48dfa3e4c9783f070910dea4fa6/FLAG7a5dd6cb2 [2021-03-24 19:45:52,259 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 19:45:52,260 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_pso.opt.i [2021-03-24 19:45:52,272 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/516076697/eaf6e48dfa3e4c9783f070910dea4fa6/FLAG7a5dd6cb2 [2021-03-24 19:45:52,719 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/516076697/eaf6e48dfa3e4c9783f070910dea4fa6 [2021-03-24 19:45:52,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 19:45:52,723 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 19:45:52,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 19:45:52,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 19:45:52,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 19:45:52,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:45:52" (1/1) ... [2021-03-24 19:45:52,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20aa879c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:45:52, skipping insertion in model container [2021-03-24 19:45:52,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:45:52" (1/1) ... [2021-03-24 19:45:52,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 19:45:52,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 19:45:52,904 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_pso.opt.i[991,1004] [2021-03-24 19:45:53,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:45:53,111 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 19:45:53,129 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_pso.opt.i[991,1004] [2021-03-24 19:45:53,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:45:53,251 INFO L208 MainTranslator]: Completed translation [2021-03-24 19:45:53,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:45:53 WrapperNode [2021-03-24 19:45:53,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 19:45:53,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 19:45:53,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 19:45:53,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 19:45:53,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:45:53" (1/1) ... [2021-03-24 19:45:53,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:45:53" (1/1) ... [2021-03-24 19:45:53,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 19:45:53,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 19:45:53,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 19:45:53,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 19:45:53,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:45:53" (1/1) ... [2021-03-24 19:45:53,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:45:53" (1/1) ... [2021-03-24 19:45:53,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:45:53" (1/1) ... [2021-03-24 19:45:53,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:45:53" (1/1) ... [2021-03-24 19:45:53,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:45:53" (1/1) ... [2021-03-24 19:45:53,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:45:53" (1/1) ... [2021-03-24 19:45:53,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:45:53" (1/1) ... [2021-03-24 19:45:53,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 19:45:53,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 19:45:53,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 19:45:53,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 19:45:53,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:45:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:45:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 19:45:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 19:45:53,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 19:45:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 19:45:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 19:45:53,428 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 19:45:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 19:45:53,429 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 19:45:53,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 19:45:53,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 19:45:53,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 19:45:53,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 19:45:53,432 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 19:45:56,007 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 19:45:56,008 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-24 19:45:56,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:45:56 BoogieIcfgContainer [2021-03-24 19:45:56,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 19:45:56,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 19:45:56,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 19:45:56,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 19:45:56,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 07:45:52" (1/3) ... [2021-03-24 19:45:56,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d00b3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:45:56, skipping insertion in model container [2021-03-24 19:45:56,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:45:53" (2/3) ... [2021-03-24 19:45:56,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d00b3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:45:56, skipping insertion in model container [2021-03-24 19:45:56,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:45:56" (3/3) ... [2021-03-24 19:45:56,016 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi002_pso.opt.i [2021-03-24 19:45:56,022 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 19:45:56,027 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-24 19:45:56,028 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 19:45:56,070 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,071 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,071 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,071 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,071 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,071 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,071 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,071 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,071 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,082 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,082 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,082 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,082 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,082 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,082 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,082 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,082 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,082 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,086 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,086 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,086 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,086 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,086 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,086 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,087 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,088 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,088 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,088 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,088 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,088 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,088 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,088 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,088 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,092 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,092 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,092 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,092 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,092 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,092 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite62| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,094 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,094 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,094 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,094 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,094 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,094 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,094 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite62| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,099 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,099 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite68| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,099 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite67| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite66| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite64| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite65| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite68| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite67| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite66| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite64| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite65| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,108 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,115 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,116 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,117 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,117 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,117 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,117 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,117 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,117 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,117 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,117 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,117 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,117 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,117 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite65| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite66| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite67| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite68| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,123 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite62| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite64| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,124 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,124 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:45:56,126 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 19:45:56,142 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-24 19:45:56,169 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 19:45:56,169 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 19:45:56,169 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 19:45:56,169 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 19:45:56,169 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 19:45:56,169 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 19:45:56,169 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 19:45:56,169 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 19:45:56,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 85 transitions, 180 flow [2021-03-24 19:45:56,224 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-03-24 19:45:56,225 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:45:56,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2021-03-24 19:45:56,236 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 85 transitions, 180 flow [2021-03-24 19:45:56,240 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 83 transitions, 172 flow [2021-03-24 19:45:56,242 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 19:45:56,251 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 83 transitions, 172 flow [2021-03-24 19:45:56,254 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 83 transitions, 172 flow [2021-03-24 19:45:56,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 83 transitions, 172 flow [2021-03-24 19:45:56,271 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-03-24 19:45:56,271 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:45:56,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2021-03-24 19:45:56,273 INFO L142 LiptonReduction]: Number of co-enabled transitions 1124 [2021-03-24 19:45:57,392 WARN L205 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-03-24 19:45:57,961 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-03-24 19:45:59,434 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-03-24 19:46:00,080 WARN L205 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-24 19:46:00,353 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 19:46:00,777 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-24 19:46:00,900 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-24 19:46:02,216 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-03-24 19:46:02,586 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-03-24 19:46:03,833 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 267 DAG size of output: 266 [2021-03-24 19:46:04,457 WARN L205 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-24 19:46:05,276 INFO L154 LiptonReduction]: Checked pairs total: 1858 [2021-03-24 19:46:05,276 INFO L156 LiptonReduction]: Total number of compositions: 57 [2021-03-24 19:46:05,279 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9038 [2021-03-24 19:46:05,294 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-24 19:46:05,294 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:46:05,295 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:05,295 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:46:05,296 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:05,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:05,301 INFO L82 PathProgramCache]: Analyzing trace with hash 985276753, now seen corresponding path program 1 times [2021-03-24 19:46:05,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:05,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586001309] [2021-03-24 19:46:05,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:05,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:05,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:05,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:05,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:05,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:05,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586001309] [2021-03-24 19:46:05,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:05,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 19:46:05,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560382361] [2021-03-24 19:46:05,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 19:46:05,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:05,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 19:46:05,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 19:46:05,613 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 142 [2021-03-24 19:46:05,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:05,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:05,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 142 [2021-03-24 19:46:05,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:05,761 INFO L129 PetriNetUnfolder]: 57/161 cut-off events. [2021-03-24 19:46:05,762 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:46:05,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 161 events. 57/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 699 event pairs, 6 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 256. Up to 88 conditions per place. [2021-03-24 19:46:05,764 INFO L132 encePairwiseOnDemand]: 138/142 looper letters, 12 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2021-03-24 19:46:05,765 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 35 transitions, 104 flow [2021-03-24 19:46:05,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 19:46:05,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 19:46:05,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 365 transitions. [2021-03-24 19:46:05,781 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8568075117370892 [2021-03-24 19:46:05,782 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 365 transitions. [2021-03-24 19:46:05,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 365 transitions. [2021-03-24 19:46:05,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:05,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 365 transitions. [2021-03-24 19:46:05,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:05,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:05,810 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:05,811 INFO L185 Difference]: Start difference. First operand has 38 places, 32 transitions, 70 flow. Second operand 3 states and 365 transitions. [2021-03-24 19:46:05,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 35 transitions, 104 flow [2021-03-24 19:46:05,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 35 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 19:46:05,815 INFO L241 Difference]: Finished difference. Result has 37 places, 30 transitions, 68 flow [2021-03-24 19:46:05,817 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2021-03-24 19:46:05,818 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2021-03-24 19:46:05,818 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 68 flow [2021-03-24 19:46:05,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:05,818 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:05,818 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:46:05,819 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 19:46:05,819 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:05,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:05,820 INFO L82 PathProgramCache]: Analyzing trace with hash 575567191, now seen corresponding path program 1 times [2021-03-24 19:46:05,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:05,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007093484] [2021-03-24 19:46:05,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:05,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:05,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:05,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:05,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:05,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:05,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:05,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:05,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007093484] [2021-03-24 19:46:05,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:05,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:46:05,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286457298] [2021-03-24 19:46:05,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:46:05,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:05,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:46:05,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:46:05,973 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 142 [2021-03-24 19:46:05,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:05,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:05,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 142 [2021-03-24 19:46:05,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:06,015 INFO L129 PetriNetUnfolder]: 2/40 cut-off events. [2021-03-24 19:46:06,015 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:46:06,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 41. Up to 4 conditions per place. [2021-03-24 19:46:06,017 INFO L132 encePairwiseOnDemand]: 137/142 looper letters, 2 selfloop transitions, 2 changer transitions 7/34 dead transitions. [2021-03-24 19:46:06,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 34 transitions, 94 flow [2021-03-24 19:46:06,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:46:06,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:46:06,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 591 transitions. [2021-03-24 19:46:06,020 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8323943661971831 [2021-03-24 19:46:06,020 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 591 transitions. [2021-03-24 19:46:06,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 591 transitions. [2021-03-24 19:46:06,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:06,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 591 transitions. [2021-03-24 19:46:06,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:06,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:06,026 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:06,026 INFO L185 Difference]: Start difference. First operand has 37 places, 30 transitions, 68 flow. Second operand 5 states and 591 transitions. [2021-03-24 19:46:06,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 34 transitions, 94 flow [2021-03-24 19:46:06,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 19:46:06,027 INFO L241 Difference]: Finished difference. Result has 42 places, 27 transitions, 70 flow [2021-03-24 19:46:06,027 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=70, PETRI_PLACES=42, PETRI_TRANSITIONS=27} [2021-03-24 19:46:06,028 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2021-03-24 19:46:06,028 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 27 transitions, 70 flow [2021-03-24 19:46:06,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:06,028 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:06,028 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:46:06,029 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 19:46:06,029 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:06,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:06,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1654111493, now seen corresponding path program 1 times [2021-03-24 19:46:06,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:06,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274758321] [2021-03-24 19:46:06,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:06,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:06,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:06,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:06,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:06,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:06,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:06,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:06,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:46:06,182 INFO L142 QuantifierPusher]: treesize reduction 10, result has 56.5 percent of original size [2021-03-24 19:46:06,185 INFO L147 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-03-24 19:46:06,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:06,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:06,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:06,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274758321] [2021-03-24 19:46:06,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:06,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:46:06,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581150587] [2021-03-24 19:46:06,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 19:46:06,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:06,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 19:46:06,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-24 19:46:06,215 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 142 [2021-03-24 19:46:06,216 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 27 transitions, 70 flow. Second operand has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:06,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:06,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 142 [2021-03-24 19:46:06,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:06,427 INFO L129 PetriNetUnfolder]: 63/152 cut-off events. [2021-03-24 19:46:06,428 INFO L130 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2021-03-24 19:46:06,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 152 events. 63/152 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 530 event pairs, 16 based on Foata normal form. 13/163 useless extension candidates. Maximal degree in co-relation 297. Up to 65 conditions per place. [2021-03-24 19:46:06,429 INFO L132 encePairwiseOnDemand]: 134/142 looper letters, 13 selfloop transitions, 7 changer transitions 12/47 dead transitions. [2021-03-24 19:46:06,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 47 transitions, 178 flow [2021-03-24 19:46:06,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 19:46:06,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 19:46:06,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 843 transitions. [2021-03-24 19:46:06,432 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7420774647887324 [2021-03-24 19:46:06,433 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 843 transitions. [2021-03-24 19:46:06,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 843 transitions. [2021-03-24 19:46:06,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:06,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 843 transitions. [2021-03-24 19:46:06,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 105.375) internal successors, (843), 8 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:06,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:06,438 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:06,438 INFO L185 Difference]: Start difference. First operand has 42 places, 27 transitions, 70 flow. Second operand 8 states and 843 transitions. [2021-03-24 19:46:06,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 47 transitions, 178 flow [2021-03-24 19:46:06,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 47 transitions, 170 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-24 19:46:06,440 INFO L241 Difference]: Finished difference. Result has 45 places, 31 transitions, 113 flow [2021-03-24 19:46:06,440 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=113, PETRI_PLACES=45, PETRI_TRANSITIONS=31} [2021-03-24 19:46:06,441 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2021-03-24 19:46:06,441 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 31 transitions, 113 flow [2021-03-24 19:46:06,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:06,441 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:06,441 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:46:06,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 19:46:06,442 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:06,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:06,442 INFO L82 PathProgramCache]: Analyzing trace with hash 719333528, now seen corresponding path program 1 times [2021-03-24 19:46:06,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:06,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090595440] [2021-03-24 19:46:06,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:06,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:06,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:06,524 INFO L142 QuantifierPusher]: treesize reduction 5, result has 37.5 percent of original size [2021-03-24 19:46:06,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:06,528 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-24 19:46:06,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:06,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:06,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 19:46:06,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:06,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 19:46:06,564 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-24 19:46:06,566 INFO L147 QuantifierPusher]: treesize reduction 9, result has 79.5 percent of original size 35 [2021-03-24 19:46:06,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:06,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 19:46:06,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:06,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 19:46:06,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:06,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 19:46:06,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:06,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:06,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:06,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090595440] [2021-03-24 19:46:06,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:06,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-24 19:46:06,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470694170] [2021-03-24 19:46:06,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 19:46:06,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:06,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 19:46:06,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-24 19:46:06,653 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 142 [2021-03-24 19:46:06,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 31 transitions, 113 flow. Second operand has 11 states, 11 states have (on average 84.0909090909091) internal successors, (925), 11 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:06,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:06,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 142 [2021-03-24 19:46:06,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:07,039 INFO L129 PetriNetUnfolder]: 169/333 cut-off events. [2021-03-24 19:46:07,039 INFO L130 PetriNetUnfolder]: For 323/326 co-relation queries the response was YES. [2021-03-24 19:46:07,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 907 conditions, 333 events. 169/333 cut-off events. For 323/326 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1246 event pairs, 18 based on Foata normal form. 12/341 useless extension candidates. Maximal degree in co-relation 879. Up to 151 conditions per place. [2021-03-24 19:46:07,045 INFO L132 encePairwiseOnDemand]: 130/142 looper letters, 36 selfloop transitions, 15 changer transitions 13/74 dead transitions. [2021-03-24 19:46:07,045 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 74 transitions, 383 flow [2021-03-24 19:46:07,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 19:46:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 19:46:07,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 976 transitions. [2021-03-24 19:46:07,048 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6248399487836107 [2021-03-24 19:46:07,049 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 976 transitions. [2021-03-24 19:46:07,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 976 transitions. [2021-03-24 19:46:07,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:07,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 976 transitions. [2021-03-24 19:46:07,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 88.72727272727273) internal successors, (976), 11 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:07,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 142.0) internal successors, (1704), 12 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:07,059 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 142.0) internal successors, (1704), 12 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:07,060 INFO L185 Difference]: Start difference. First operand has 45 places, 31 transitions, 113 flow. Second operand 11 states and 976 transitions. [2021-03-24 19:46:07,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 74 transitions, 383 flow [2021-03-24 19:46:07,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 74 transitions, 362 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-03-24 19:46:07,064 INFO L241 Difference]: Finished difference. Result has 55 places, 41 transitions, 212 flow [2021-03-24 19:46:07,065 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=212, PETRI_PLACES=55, PETRI_TRANSITIONS=41} [2021-03-24 19:46:07,065 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 17 predicate places. [2021-03-24 19:46:07,065 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 41 transitions, 212 flow [2021-03-24 19:46:07,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 84.0909090909091) internal successors, (925), 11 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:07,065 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:07,065 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:46:07,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 19:46:07,066 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:07,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:07,066 INFO L82 PathProgramCache]: Analyzing trace with hash 703246388, now seen corresponding path program 2 times [2021-03-24 19:46:07,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:07,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280305593] [2021-03-24 19:46:07,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:07,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:07,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:07,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:07,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:07,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:07,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:46:07,259 INFO L142 QuantifierPusher]: treesize reduction 29, result has 68.1 percent of original size [2021-03-24 19:46:07,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 19:46:07,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:07,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 19:46:07,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:07,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 19:46:07,302 INFO L142 QuantifierPusher]: treesize reduction 17, result has 75.4 percent of original size [2021-03-24 19:46:07,305 INFO L147 QuantifierPusher]: treesize reduction 9, result has 82.7 percent of original size 43 [2021-03-24 19:46:07,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:07,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:07,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:07,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280305593] [2021-03-24 19:46:07,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:07,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 19:46:07,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551554578] [2021-03-24 19:46:07,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 19:46:07,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:07,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 19:46:07,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-03-24 19:46:07,351 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 142 [2021-03-24 19:46:07,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 41 transitions, 212 flow. Second operand has 8 states, 8 states have (on average 92.375) internal successors, (739), 8 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:07,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:07,352 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 142 [2021-03-24 19:46:07,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:07,610 INFO L129 PetriNetUnfolder]: 74/184 cut-off events. [2021-03-24 19:46:07,610 INFO L130 PetriNetUnfolder]: For 468/479 co-relation queries the response was YES. [2021-03-24 19:46:07,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 184 events. 74/184 cut-off events. For 468/479 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 722 event pairs, 19 based on Foata normal form. 11/191 useless extension candidates. Maximal degree in co-relation 663. Up to 105 conditions per place. [2021-03-24 19:46:07,615 INFO L132 encePairwiseOnDemand]: 133/142 looper letters, 20 selfloop transitions, 13 changer transitions 6/55 dead transitions. [2021-03-24 19:46:07,615 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 55 transitions, 382 flow [2021-03-24 19:46:07,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:46:07,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:46:07,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 854 transitions. [2021-03-24 19:46:07,619 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6682316118935837 [2021-03-24 19:46:07,619 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 854 transitions. [2021-03-24 19:46:07,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 854 transitions. [2021-03-24 19:46:07,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:07,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 854 transitions. [2021-03-24 19:46:07,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 94.88888888888889) internal successors, (854), 9 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:07,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 142.0) internal successors, (1420), 10 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) [2021-03-24 19:46:07,624 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 142.0) internal successors, (1420), 10 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) [2021-03-24 19:46:07,624 INFO L185 Difference]: Start difference. First operand has 55 places, 41 transitions, 212 flow. Second operand 9 states and 854 transitions. [2021-03-24 19:46:07,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 55 transitions, 382 flow [2021-03-24 19:46:07,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 55 transitions, 370 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-24 19:46:07,631 INFO L241 Difference]: Finished difference. Result has 61 places, 43 transitions, 265 flow [2021-03-24 19:46:07,631 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=265, PETRI_PLACES=61, PETRI_TRANSITIONS=43} [2021-03-24 19:46:07,632 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 23 predicate places. [2021-03-24 19:46:07,632 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 43 transitions, 265 flow [2021-03-24 19:46:07,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 92.375) internal successors, (739), 8 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:07,632 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:07,632 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:46:07,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 19:46:07,632 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:07,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:07,633 INFO L82 PathProgramCache]: Analyzing trace with hash 207208192, now seen corresponding path program 3 times [2021-03-24 19:46:07,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:07,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557302990] [2021-03-24 19:46:07,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:07,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:07,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:07,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:07,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:07,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:07,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:07,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:07,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 19:46:07,774 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-24 19:46:07,775 INFO L147 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size 18 [2021-03-24 19:46:07,841 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-24 19:46:07,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 19:46:07,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:07,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:07,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:07,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557302990] [2021-03-24 19:46:07,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:07,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 19:46:07,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460214280] [2021-03-24 19:46:07,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 19:46:07,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:07,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 19:46:07,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-24 19:46:07,868 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 142 [2021-03-24 19:46:07,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 43 transitions, 265 flow. Second operand has 8 states, 8 states have (on average 94.375) internal successors, (755), 8 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:07,868 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:07,868 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 142 [2021-03-24 19:46:07,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:08,102 INFO L129 PetriNetUnfolder]: 79/196 cut-off events. [2021-03-24 19:46:08,102 INFO L130 PetriNetUnfolder]: For 763/774 co-relation queries the response was YES. [2021-03-24 19:46:08,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 196 events. 79/196 cut-off events. For 763/774 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 815 event pairs, 9 based on Foata normal form. 8/200 useless extension candidates. Maximal degree in co-relation 807. Up to 101 conditions per place. [2021-03-24 19:46:08,104 INFO L132 encePairwiseOnDemand]: 132/142 looper letters, 21 selfloop transitions, 18 changer transitions 6/61 dead transitions. [2021-03-24 19:46:08,104 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 61 transitions, 495 flow [2021-03-24 19:46:08,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:46:08,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:46:08,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 876 transitions. [2021-03-24 19:46:08,107 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6854460093896714 [2021-03-24 19:46:08,107 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 876 transitions. [2021-03-24 19:46:08,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 876 transitions. [2021-03-24 19:46:08,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:08,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 876 transitions. [2021-03-24 19:46:08,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 97.33333333333333) internal successors, (876), 9 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:08,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 142.0) internal successors, (1420), 10 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) [2021-03-24 19:46:08,112 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 142.0) internal successors, (1420), 10 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) [2021-03-24 19:46:08,112 INFO L185 Difference]: Start difference. First operand has 61 places, 43 transitions, 265 flow. Second operand 9 states and 876 transitions. [2021-03-24 19:46:08,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 61 transitions, 495 flow [2021-03-24 19:46:08,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 61 transitions, 419 flow, removed 32 selfloop flow, removed 6 redundant places. [2021-03-24 19:46:08,117 INFO L241 Difference]: Finished difference. Result has 65 places, 48 transitions, 322 flow [2021-03-24 19:46:08,117 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=322, PETRI_PLACES=65, PETRI_TRANSITIONS=48} [2021-03-24 19:46:08,117 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 27 predicate places. [2021-03-24 19:46:08,117 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 48 transitions, 322 flow [2021-03-24 19:46:08,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 94.375) internal successors, (755), 8 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:08,118 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:08,118 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:46:08,118 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 19:46:08,118 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:08,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:08,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1395933048, now seen corresponding path program 4 times [2021-03-24 19:46:08,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:08,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275771208] [2021-03-24 19:46:08,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:08,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:08,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:08,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:08,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:08,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:08,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:08,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:08,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:08,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:08,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:46:08,238 INFO L142 QuantifierPusher]: treesize reduction 28, result has 62.2 percent of original size [2021-03-24 19:46:08,239 INFO L147 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size 37 [2021-03-24 19:46:08,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:08,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 19:46:08,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:08,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:08,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:08,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275771208] [2021-03-24 19:46:08,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:08,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 19:46:08,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170099439] [2021-03-24 19:46:08,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 19:46:08,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:08,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 19:46:08,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-24 19:46:08,287 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 142 [2021-03-24 19:46:08,287 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 48 transitions, 322 flow. Second operand has 8 states, 8 states have (on average 91.5) internal successors, (732), 8 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:08,287 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:08,287 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 142 [2021-03-24 19:46:08,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:08,530 INFO L129 PetriNetUnfolder]: 86/212 cut-off events. [2021-03-24 19:46:08,530 INFO L130 PetriNetUnfolder]: For 830/844 co-relation queries the response was YES. [2021-03-24 19:46:08,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 916 conditions, 212 events. 86/212 cut-off events. For 830/844 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 924 event pairs, 7 based on Foata normal form. 10/218 useless extension candidates. Maximal degree in co-relation 873. Up to 112 conditions per place. [2021-03-24 19:46:08,534 INFO L132 encePairwiseOnDemand]: 131/142 looper letters, 24 selfloop transitions, 18 changer transitions 7/64 dead transitions. [2021-03-24 19:46:08,534 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 64 transitions, 542 flow [2021-03-24 19:46:08,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 19:46:08,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 19:46:08,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 754 transitions. [2021-03-24 19:46:08,538 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6637323943661971 [2021-03-24 19:46:08,538 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 754 transitions. [2021-03-24 19:46:08,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 754 transitions. [2021-03-24 19:46:08,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:08,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 754 transitions. [2021-03-24 19:46:08,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 94.25) internal successors, (754), 8 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:08,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:08,546 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:08,546 INFO L185 Difference]: Start difference. First operand has 65 places, 48 transitions, 322 flow. Second operand 8 states and 754 transitions. [2021-03-24 19:46:08,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 64 transitions, 542 flow [2021-03-24 19:46:08,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 64 transitions, 492 flow, removed 16 selfloop flow, removed 5 redundant places. [2021-03-24 19:46:08,553 INFO L241 Difference]: Finished difference. Result has 69 places, 53 transitions, 402 flow [2021-03-24 19:46:08,553 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=402, PETRI_PLACES=69, PETRI_TRANSITIONS=53} [2021-03-24 19:46:08,554 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 31 predicate places. [2021-03-24 19:46:08,554 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 53 transitions, 402 flow [2021-03-24 19:46:08,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 91.5) internal successors, (732), 8 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:08,554 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:08,554 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] [2021-03-24 19:46:08,554 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 19:46:08,554 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:08,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:08,555 INFO L82 PathProgramCache]: Analyzing trace with hash -473861010, now seen corresponding path program 1 times [2021-03-24 19:46:08,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:08,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513849799] [2021-03-24 19:46:08,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:08,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:08,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:08,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:08,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:08,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:08,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:08,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:08,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:46:08,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:08,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 19:46:08,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:08,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 19:46:08,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:08,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 19:46:08,767 INFO L142 QuantifierPusher]: treesize reduction 48, result has 55.1 percent of original size [2021-03-24 19:46:08,770 INFO L147 QuantifierPusher]: treesize reduction 8, result has 86.4 percent of original size 51 [2021-03-24 19:46:08,806 INFO L142 QuantifierPusher]: treesize reduction 21, result has 84.1 percent of original size [2021-03-24 19:46:08,807 INFO L147 QuantifierPusher]: treesize reduction 9, result has 91.9 percent of original size 102 [2021-03-24 19:46:08,851 INFO L142 QuantifierPusher]: treesize reduction 34, result has 67.0 percent of original size [2021-03-24 19:46:08,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 19:46:08,894 INFO L142 QuantifierPusher]: treesize reduction 27, result has 80.0 percent of original size [2021-03-24 19:46:08,896 INFO L147 QuantifierPusher]: treesize reduction 9, result has 91.7 percent of original size 99 [2021-03-24 19:46:08,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:08,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:08,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:08,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513849799] [2021-03-24 19:46:08,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:08,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 19:46:08,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529534776] [2021-03-24 19:46:08,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 19:46:08,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:08,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 19:46:08,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-03-24 19:46:08,950 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 142 [2021-03-24 19:46:08,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 53 transitions, 402 flow. Second operand has 12 states, 12 states have (on average 86.16666666666667) internal successors, (1034), 12 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:08,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:08,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 142 [2021-03-24 19:46:08,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:09,364 INFO L129 PetriNetUnfolder]: 106/260 cut-off events. [2021-03-24 19:46:09,364 INFO L130 PetriNetUnfolder]: For 1393/1410 co-relation queries the response was YES. [2021-03-24 19:46:09,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1270 conditions, 260 events. 106/260 cut-off events. For 1393/1410 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1206 event pairs, 14 based on Foata normal form. 6/264 useless extension candidates. Maximal degree in co-relation 1224. Up to 153 conditions per place. [2021-03-24 19:46:09,367 INFO L132 encePairwiseOnDemand]: 131/142 looper letters, 36 selfloop transitions, 31 changer transitions 4/85 dead transitions. [2021-03-24 19:46:09,367 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 85 transitions, 867 flow [2021-03-24 19:46:09,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 19:46:09,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 19:46:09,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1063 transitions. [2021-03-24 19:46:09,371 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6238262910798122 [2021-03-24 19:46:09,371 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1063 transitions. [2021-03-24 19:46:09,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1063 transitions. [2021-03-24 19:46:09,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:09,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1063 transitions. [2021-03-24 19:46:09,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 88.58333333333333) internal successors, (1063), 12 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) [2021-03-24 19:46:09,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:09,377 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:09,377 INFO L185 Difference]: Start difference. First operand has 69 places, 53 transitions, 402 flow. Second operand 12 states and 1063 transitions. [2021-03-24 19:46:09,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 85 transitions, 867 flow [2021-03-24 19:46:09,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 85 transitions, 805 flow, removed 18 selfloop flow, removed 5 redundant places. [2021-03-24 19:46:09,385 INFO L241 Difference]: Finished difference. Result has 79 places, 73 transitions, 683 flow [2021-03-24 19:46:09,385 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=683, PETRI_PLACES=79, PETRI_TRANSITIONS=73} [2021-03-24 19:46:09,386 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 41 predicate places. [2021-03-24 19:46:09,386 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 73 transitions, 683 flow [2021-03-24 19:46:09,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 86.16666666666667) internal successors, (1034), 12 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:09,386 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:09,386 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] [2021-03-24 19:46:09,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 19:46:09,386 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:09,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:09,387 INFO L82 PathProgramCache]: Analyzing trace with hash -630765577, now seen corresponding path program 1 times [2021-03-24 19:46:09,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:09,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879294533] [2021-03-24 19:46:09,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:09,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:09,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:09,443 INFO L142 QuantifierPusher]: treesize reduction 5, result has 37.5 percent of original size [2021-03-24 19:46:09,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:09,448 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-03-24 19:46:09,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 19:46:09,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:09,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:46:09,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:09,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:09,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:09,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:09,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:09,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879294533] [2021-03-24 19:46:09,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:09,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:46:09,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147375696] [2021-03-24 19:46:09,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 19:46:09,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:09,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 19:46:09,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-24 19:46:09,492 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 142 [2021-03-24 19:46:09,493 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 73 transitions, 683 flow. Second operand has 7 states, 7 states have (on average 90.71428571428571) internal successors, (635), 7 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:09,493 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:09,493 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 142 [2021-03-24 19:46:09,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:09,874 INFO L129 PetriNetUnfolder]: 287/563 cut-off events. [2021-03-24 19:46:09,874 INFO L130 PetriNetUnfolder]: For 3309/3318 co-relation queries the response was YES. [2021-03-24 19:46:09,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2869 conditions, 563 events. 287/563 cut-off events. For 3309/3318 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2723 event pairs, 36 based on Foata normal form. 14/577 useless extension candidates. Maximal degree in co-relation 2819. Up to 191 conditions per place. [2021-03-24 19:46:09,880 INFO L132 encePairwiseOnDemand]: 131/142 looper letters, 62 selfloop transitions, 20 changer transitions 43/138 dead transitions. [2021-03-24 19:46:09,880 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 138 transitions, 1483 flow [2021-03-24 19:46:09,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 19:46:09,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 19:46:09,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1049 transitions. [2021-03-24 19:46:09,884 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6715749039692702 [2021-03-24 19:46:09,884 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1049 transitions. [2021-03-24 19:46:09,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1049 transitions. [2021-03-24 19:46:09,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:09,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1049 transitions. [2021-03-24 19:46:09,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 95.36363636363636) internal successors, (1049), 11 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:09,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 142.0) internal successors, (1704), 12 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:09,891 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 142.0) internal successors, (1704), 12 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:09,891 INFO L185 Difference]: Start difference. First operand has 79 places, 73 transitions, 683 flow. Second operand 11 states and 1049 transitions. [2021-03-24 19:46:09,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 138 transitions, 1483 flow [2021-03-24 19:46:09,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 138 transitions, 1378 flow, removed 31 selfloop flow, removed 7 redundant places. [2021-03-24 19:46:09,902 INFO L241 Difference]: Finished difference. Result has 88 places, 77 transitions, 742 flow [2021-03-24 19:46:09,903 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=742, PETRI_PLACES=88, PETRI_TRANSITIONS=77} [2021-03-24 19:46:09,903 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 50 predicate places. [2021-03-24 19:46:09,903 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 77 transitions, 742 flow [2021-03-24 19:46:09,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 90.71428571428571) internal successors, (635), 7 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:09,903 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:09,904 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] [2021-03-24 19:46:09,904 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 19:46:09,904 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:09,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:09,904 INFO L82 PathProgramCache]: Analyzing trace with hash 845293119, now seen corresponding path program 2 times [2021-03-24 19:46:09,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:09,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810686828] [2021-03-24 19:46:09,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:10,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:10,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:10,019 INFO L142 QuantifierPusher]: treesize reduction 5, result has 37.5 percent of original size [2021-03-24 19:46:10,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:10,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:10,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:10,024 INFO L142 QuantifierPusher]: treesize reduction 7, result has 61.1 percent of original size [2021-03-24 19:46:10,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 19:46:10,035 INFO L142 QuantifierPusher]: treesize reduction 38, result has 58.7 percent of original size [2021-03-24 19:46:10,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 19:46:10,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:10,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:10,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:10,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:10,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:10,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810686828] [2021-03-24 19:46:10,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:10,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:46:10,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940965665] [2021-03-24 19:46:10,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 19:46:10,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:10,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 19:46:10,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-24 19:46:10,080 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 142 [2021-03-24 19:46:10,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 77 transitions, 742 flow. Second operand has 7 states, 7 states have (on average 86.0) internal successors, (602), 7 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:10,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:10,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 142 [2021-03-24 19:46:10,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:10,504 INFO L129 PetriNetUnfolder]: 237/496 cut-off events. [2021-03-24 19:46:10,505 INFO L130 PetriNetUnfolder]: For 3675/3677 co-relation queries the response was YES. [2021-03-24 19:46:10,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2747 conditions, 496 events. 237/496 cut-off events. For 3675/3677 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2440 event pairs, 21 based on Foata normal form. 9/504 useless extension candidates. Maximal degree in co-relation 2693. Up to 164 conditions per place. [2021-03-24 19:46:10,510 INFO L132 encePairwiseOnDemand]: 129/142 looper letters, 43 selfloop transitions, 29 changer transitions 72/153 dead transitions. [2021-03-24 19:46:10,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 153 transitions, 1717 flow [2021-03-24 19:46:10,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 19:46:10,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 19:46:10,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1188 transitions. [2021-03-24 19:46:10,514 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6435536294691224 [2021-03-24 19:46:10,514 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1188 transitions. [2021-03-24 19:46:10,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1188 transitions. [2021-03-24 19:46:10,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:10,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1188 transitions. [2021-03-24 19:46:10,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 91.38461538461539) internal successors, (1188), 13 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:10,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 142.0) internal successors, (1988), 14 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:10,521 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 142.0) internal successors, (1988), 14 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:10,521 INFO L185 Difference]: Start difference. First operand has 88 places, 77 transitions, 742 flow. Second operand 13 states and 1188 transitions. [2021-03-24 19:46:10,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 153 transitions, 1717 flow [2021-03-24 19:46:10,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 153 transitions, 1650 flow, removed 28 selfloop flow, removed 6 redundant places. [2021-03-24 19:46:10,535 INFO L241 Difference]: Finished difference. Result has 96 places, 67 transitions, 735 flow [2021-03-24 19:46:10,536 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=735, PETRI_PLACES=96, PETRI_TRANSITIONS=67} [2021-03-24 19:46:10,536 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 58 predicate places. [2021-03-24 19:46:10,536 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 67 transitions, 735 flow [2021-03-24 19:46:10,536 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 86.0) internal successors, (602), 7 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:10,536 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:10,536 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] [2021-03-24 19:46:10,536 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 19:46:10,536 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:10,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:10,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1652435302, now seen corresponding path program 2 times [2021-03-24 19:46:10,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:10,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204852557] [2021-03-24 19:46:10,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:10,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:10,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:10,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:10,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:10,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:10,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:10,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:10,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:46:10,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:10,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:46:10,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:10,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 19:46:10,694 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-03-24 19:46:10,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 19:46:10,723 INFO L142 QuantifierPusher]: treesize reduction 11, result has 88.2 percent of original size [2021-03-24 19:46:10,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-24 19:46:10,784 INFO L142 QuantifierPusher]: treesize reduction 124, result has 57.7 percent of original size [2021-03-24 19:46:10,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-03-24 19:46:10,865 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.8 percent of original size [2021-03-24 19:46:10,866 INFO L147 QuantifierPusher]: treesize reduction 9, result has 80.0 percent of original size 36 [2021-03-24 19:46:10,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:10,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 19:46:10,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:10,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:10,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:10,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204852557] [2021-03-24 19:46:10,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:10,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 19:46:10,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114925756] [2021-03-24 19:46:10,911 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 19:46:10,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:10,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 19:46:10,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-03-24 19:46:10,914 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 142 [2021-03-24 19:46:10,915 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 67 transitions, 735 flow. Second operand has 12 states, 12 states have (on average 85.16666666666667) internal successors, (1022), 12 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:10,915 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:10,915 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 142 [2021-03-24 19:46:10,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:11,249 INFO L129 PetriNetUnfolder]: 60/192 cut-off events. [2021-03-24 19:46:11,249 INFO L130 PetriNetUnfolder]: For 2047/2072 co-relation queries the response was YES. [2021-03-24 19:46:11,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 192 events. 60/192 cut-off events. For 2047/2072 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 867 event pairs, 8 based on Foata normal form. 19/209 useless extension candidates. Maximal degree in co-relation 1250. Up to 93 conditions per place. [2021-03-24 19:46:11,252 INFO L132 encePairwiseOnDemand]: 132/142 looper letters, 48 selfloop transitions, 15 changer transitions 4/81 dead transitions. [2021-03-24 19:46:11,252 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 81 transitions, 1058 flow [2021-03-24 19:46:11,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 19:46:11,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 19:46:11,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 874 transitions. [2021-03-24 19:46:11,255 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6154929577464788 [2021-03-24 19:46:11,255 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 874 transitions. [2021-03-24 19:46:11,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 874 transitions. [2021-03-24 19:46:11,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:11,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 874 transitions. [2021-03-24 19:46:11,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.4) internal successors, (874), 10 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:11,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 142.0) internal successors, (1562), 11 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:11,260 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 142.0) internal successors, (1562), 11 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:11,260 INFO L185 Difference]: Start difference. First operand has 96 places, 67 transitions, 735 flow. Second operand 10 states and 874 transitions. [2021-03-24 19:46:11,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 81 transitions, 1058 flow [2021-03-24 19:46:11,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 81 transitions, 932 flow, removed 35 selfloop flow, removed 11 redundant places. [2021-03-24 19:46:11,270 INFO L241 Difference]: Finished difference. Result has 87 places, 69 transitions, 705 flow [2021-03-24 19:46:11,270 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=705, PETRI_PLACES=87, PETRI_TRANSITIONS=69} [2021-03-24 19:46:11,270 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 49 predicate places. [2021-03-24 19:46:11,270 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 69 transitions, 705 flow [2021-03-24 19:46:11,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 85.16666666666667) internal successors, (1022), 12 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:11,271 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:11,271 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] [2021-03-24 19:46:11,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 19:46:11,271 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:11,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:11,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1105358797, now seen corresponding path program 3 times [2021-03-24 19:46:11,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:11,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895282401] [2021-03-24 19:46:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:11,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:11,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:11,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:11,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:11,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:11,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:11,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:11,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:46:11,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:11,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:46:11,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:11,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 19:46:11,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:11,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 19:46:11,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:11,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:11,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:11,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895282401] [2021-03-24 19:46:11,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:11,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 19:46:11,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672689526] [2021-03-24 19:46:11,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 19:46:11,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:11,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 19:46:11,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-24 19:46:11,409 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 142 [2021-03-24 19:46:11,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 69 transitions, 705 flow. Second operand has 8 states, 8 states have (on average 88.75) internal successors, (710), 8 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:11,410 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:11,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 142 [2021-03-24 19:46:11,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:11,680 INFO L129 PetriNetUnfolder]: 61/202 cut-off events. [2021-03-24 19:46:11,680 INFO L130 PetriNetUnfolder]: For 1722/1747 co-relation queries the response was YES. [2021-03-24 19:46:11,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1274 conditions, 202 events. 61/202 cut-off events. For 1722/1747 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 953 event pairs, 6 based on Foata normal form. 16/216 useless extension candidates. Maximal degree in co-relation 1217. Up to 101 conditions per place. [2021-03-24 19:46:11,682 INFO L132 encePairwiseOnDemand]: 131/142 looper letters, 43 selfloop transitions, 21 changer transitions 6/84 dead transitions. [2021-03-24 19:46:11,682 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 84 transitions, 1018 flow [2021-03-24 19:46:11,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 19:46:11,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 19:46:11,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 731 transitions. [2021-03-24 19:46:11,685 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6434859154929577 [2021-03-24 19:46:11,685 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 731 transitions. [2021-03-24 19:46:11,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 731 transitions. [2021-03-24 19:46:11,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:11,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 731 transitions. [2021-03-24 19:46:11,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 91.375) internal successors, (731), 8 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:11,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:11,690 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:11,690 INFO L185 Difference]: Start difference. First operand has 87 places, 69 transitions, 705 flow. Second operand 8 states and 731 transitions. [2021-03-24 19:46:11,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 84 transitions, 1018 flow [2021-03-24 19:46:11,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 84 transitions, 980 flow, removed 7 selfloop flow, removed 8 redundant places. [2021-03-24 19:46:11,698 INFO L241 Difference]: Finished difference. Result has 87 places, 73 transitions, 787 flow [2021-03-24 19:46:11,699 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=787, PETRI_PLACES=87, PETRI_TRANSITIONS=73} [2021-03-24 19:46:11,699 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 49 predicate places. [2021-03-24 19:46:11,699 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 73 transitions, 787 flow [2021-03-24 19:46:11,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 88.75) internal successors, (710), 8 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:11,699 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:11,700 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] [2021-03-24 19:46:11,700 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 19:46:11,700 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:11,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:11,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1088426810, now seen corresponding path program 3 times [2021-03-24 19:46:11,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:11,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970696988] [2021-03-24 19:46:11,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:11,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:11,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:11,787 INFO L142 QuantifierPusher]: treesize reduction 5, result has 37.5 percent of original size [2021-03-24 19:46:11,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:11,790 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-24 19:46:11,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:11,797 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-24 19:46:11,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:46:11,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:11,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 19:46:11,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:11,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 19:46:11,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:11,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 19:46:11,831 INFO L142 QuantifierPusher]: treesize reduction 32, result has 62.8 percent of original size [2021-03-24 19:46:11,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 19:46:11,848 INFO L142 QuantifierPusher]: treesize reduction 67, result has 64.6 percent of original size [2021-03-24 19:46:11,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-24 19:46:11,911 INFO L142 QuantifierPusher]: treesize reduction 43, result has 65.0 percent of original size [2021-03-24 19:46:11,912 INFO L147 QuantifierPusher]: treesize reduction 8, result has 90.0 percent of original size 72 [2021-03-24 19:46:11,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:11,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 19:46:11,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:11,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:11,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:11,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970696988] [2021-03-24 19:46:11,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:11,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-24 19:46:11,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085506355] [2021-03-24 19:46:11,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 19:46:11,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:11,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 19:46:11,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-24 19:46:11,991 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 142 [2021-03-24 19:46:11,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 73 transitions, 787 flow. Second operand has 11 states, 11 states have (on average 80.27272727272727) internal successors, (883), 11 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:11,991 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:11,991 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 142 [2021-03-24 19:46:11,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:12,661 INFO L129 PetriNetUnfolder]: 147/345 cut-off events. [2021-03-24 19:46:12,662 INFO L130 PetriNetUnfolder]: For 4162/4164 co-relation queries the response was YES. [2021-03-24 19:46:12,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2256 conditions, 345 events. 147/345 cut-off events. For 4162/4164 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1542 event pairs, 6 based on Foata normal form. 14/358 useless extension candidates. Maximal degree in co-relation 2201. Up to 118 conditions per place. [2021-03-24 19:46:12,666 INFO L132 encePairwiseOnDemand]: 129/142 looper letters, 55 selfloop transitions, 36 changer transitions 24/124 dead transitions. [2021-03-24 19:46:12,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 124 transitions, 1631 flow [2021-03-24 19:46:12,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 19:46:12,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 19:46:12,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1259 transitions. [2021-03-24 19:46:12,671 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5910798122065728 [2021-03-24 19:46:12,671 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1259 transitions. [2021-03-24 19:46:12,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1259 transitions. [2021-03-24 19:46:12,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:12,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1259 transitions. [2021-03-24 19:46:12,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 83.93333333333334) internal successors, (1259), 15 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:12,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 142.0) internal successors, (2272), 16 states have internal predecessors, (2272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:12,678 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 142.0) internal successors, (2272), 16 states have internal predecessors, (2272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:12,678 INFO L185 Difference]: Start difference. First operand has 87 places, 73 transitions, 787 flow. Second operand 15 states and 1259 transitions. [2021-03-24 19:46:12,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 124 transitions, 1631 flow [2021-03-24 19:46:12,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 124 transitions, 1593 flow, removed 15 selfloop flow, removed 5 redundant places. [2021-03-24 19:46:12,691 INFO L241 Difference]: Finished difference. Result has 100 places, 83 transitions, 1041 flow [2021-03-24 19:46:12,692 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1041, PETRI_PLACES=100, PETRI_TRANSITIONS=83} [2021-03-24 19:46:12,692 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 62 predicate places. [2021-03-24 19:46:12,692 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 83 transitions, 1041 flow [2021-03-24 19:46:12,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 80.27272727272727) internal successors, (883), 11 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:12,692 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:12,692 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] [2021-03-24 19:46:12,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 19:46:12,693 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:12,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:12,693 INFO L82 PathProgramCache]: Analyzing trace with hash 325754626, now seen corresponding path program 4 times [2021-03-24 19:46:12,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:12,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66194275] [2021-03-24 19:46:12,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:12,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:12,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:12,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:12,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:12,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:12,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:46:12,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:12,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 19:46:12,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:12,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 19:46:12,827 INFO L142 QuantifierPusher]: treesize reduction 37, result has 51.3 percent of original size [2021-03-24 19:46:12,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 19:46:12,861 INFO L142 QuantifierPusher]: treesize reduction 53, result has 67.7 percent of original size [2021-03-24 19:46:12,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-03-24 19:46:12,932 INFO L142 QuantifierPusher]: treesize reduction 53, result has 67.1 percent of original size [2021-03-24 19:46:12,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-24 19:46:12,997 INFO L142 QuantifierPusher]: treesize reduction 53, result has 67.7 percent of original size [2021-03-24 19:46:12,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-03-24 19:46:13,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:13,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 19:46:13,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:13,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:13,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:13,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66194275] [2021-03-24 19:46:13,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:13,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 19:46:13,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229933949] [2021-03-24 19:46:13,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 19:46:13,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:13,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 19:46:13,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-03-24 19:46:13,099 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 142 [2021-03-24 19:46:13,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 83 transitions, 1041 flow. Second operand has 12 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:13,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:13,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 142 [2021-03-24 19:46:13,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:13,466 INFO L129 PetriNetUnfolder]: 61/205 cut-off events. [2021-03-24 19:46:13,466 INFO L130 PetriNetUnfolder]: For 2664/2688 co-relation queries the response was YES. [2021-03-24 19:46:13,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1483 conditions, 205 events. 61/205 cut-off events. For 2664/2688 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 980 event pairs, 2 based on Foata normal form. 21/226 useless extension candidates. Maximal degree in co-relation 1423. Up to 79 conditions per place. [2021-03-24 19:46:13,469 INFO L132 encePairwiseOnDemand]: 133/142 looper letters, 46 selfloop transitions, 25 changer transitions 10/98 dead transitions. [2021-03-24 19:46:13,469 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 98 transitions, 1426 flow [2021-03-24 19:46:13,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 19:46:13,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 19:46:13,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1048 transitions. [2021-03-24 19:46:13,471 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6709346991037132 [2021-03-24 19:46:13,471 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1048 transitions. [2021-03-24 19:46:13,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1048 transitions. [2021-03-24 19:46:13,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:13,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1048 transitions. [2021-03-24 19:46:13,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 95.27272727272727) internal successors, (1048), 11 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:13,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 142.0) internal successors, (1704), 12 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:13,475 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 142.0) internal successors, (1704), 12 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:13,475 INFO L185 Difference]: Start difference. First operand has 100 places, 83 transitions, 1041 flow. Second operand 11 states and 1048 transitions. [2021-03-24 19:46:13,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 98 transitions, 1426 flow [2021-03-24 19:46:13,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 98 transitions, 1295 flow, removed 58 selfloop flow, removed 9 redundant places. [2021-03-24 19:46:13,489 INFO L241 Difference]: Finished difference. Result has 100 places, 82 transitions, 1007 flow [2021-03-24 19:46:13,489 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1007, PETRI_PLACES=100, PETRI_TRANSITIONS=82} [2021-03-24 19:46:13,489 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 62 predicate places. [2021-03-24 19:46:13,489 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 82 transitions, 1007 flow [2021-03-24 19:46:13,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:13,490 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:13,490 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:46:13,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 19:46:13,491 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:13,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:13,491 INFO L82 PathProgramCache]: Analyzing trace with hash -584605907, now seen corresponding path program 1 times [2021-03-24 19:46:13,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:13,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581238109] [2021-03-24 19:46:13,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:13,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:13,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:13,553 INFO L142 QuantifierPusher]: treesize reduction 5, result has 37.5 percent of original size [2021-03-24 19:46:13,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:13,556 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-24 19:46:13,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:13,562 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-24 19:46:13,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 19:46:13,572 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-03-24 19:46:13,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:46:13,582 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-03-24 19:46:13,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 19:46:13,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:13,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 19:46:13,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:13,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:13,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:13,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581238109] [2021-03-24 19:46:13,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:13,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 19:46:13,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553214660] [2021-03-24 19:46:13,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-24 19:46:13,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:13,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-24 19:46:13,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-03-24 19:46:13,662 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 142 [2021-03-24 19:46:13,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 82 transitions, 1007 flow. Second operand has 9 states, 9 states have (on average 83.66666666666667) internal successors, (753), 9 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:13,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:13,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 142 [2021-03-24 19:46:13,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:14,229 INFO L129 PetriNetUnfolder]: 148/348 cut-off events. [2021-03-24 19:46:14,229 INFO L130 PetriNetUnfolder]: For 4408/4412 co-relation queries the response was YES. [2021-03-24 19:46:14,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2405 conditions, 348 events. 148/348 cut-off events. For 4408/4412 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1581 event pairs, 4 based on Foata normal form. 9/356 useless extension candidates. Maximal degree in co-relation 2346. Up to 113 conditions per place. [2021-03-24 19:46:14,233 INFO L132 encePairwiseOnDemand]: 127/142 looper letters, 54 selfloop transitions, 38 changer transitions 36/137 dead transitions. [2021-03-24 19:46:14,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 137 transitions, 1947 flow [2021-03-24 19:46:14,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-24 19:46:14,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-24 19:46:14,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1388 transitions. [2021-03-24 19:46:14,235 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6109154929577465 [2021-03-24 19:46:14,235 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1388 transitions. [2021-03-24 19:46:14,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1388 transitions. [2021-03-24 19:46:14,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:14,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1388 transitions. [2021-03-24 19:46:14,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 86.75) internal successors, (1388), 16 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:14,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 142.0) internal successors, (2414), 17 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:14,240 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 142.0) internal successors, (2414), 17 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:14,240 INFO L185 Difference]: Start difference. First operand has 100 places, 82 transitions, 1007 flow. Second operand 16 states and 1388 transitions. [2021-03-24 19:46:14,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 137 transitions, 1947 flow [2021-03-24 19:46:14,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 137 transitions, 1879 flow, removed 22 selfloop flow, removed 9 redundant places. [2021-03-24 19:46:14,256 INFO L241 Difference]: Finished difference. Result has 111 places, 86 transitions, 1133 flow [2021-03-24 19:46:14,257 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=968, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1133, PETRI_PLACES=111, PETRI_TRANSITIONS=86} [2021-03-24 19:46:14,257 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 73 predicate places. [2021-03-24 19:46:14,257 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 86 transitions, 1133 flow [2021-03-24 19:46:14,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 83.66666666666667) internal successors, (753), 9 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:14,257 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:14,257 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:46:14,257 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-24 19:46:14,257 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:14,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:14,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1087486257, now seen corresponding path program 2 times [2021-03-24 19:46:14,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:14,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867891390] [2021-03-24 19:46:14,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:14,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:14,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:14,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:14,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:46:14,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:46:14,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:14,387 INFO L142 QuantifierPusher]: treesize reduction 2, result has 88.9 percent of original size [2021-03-24 19:46:14,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 19:46:14,400 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-03-24 19:46:14,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 19:46:14,417 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-03-24 19:46:14,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 19:46:14,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 19:46:14,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 19:46:14,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:14,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:14,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867891390] [2021-03-24 19:46:14,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:14,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 19:46:14,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514408849] [2021-03-24 19:46:14,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 19:46:14,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:14,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 19:46:14,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-03-24 19:46:14,469 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 142 [2021-03-24 19:46:14,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 86 transitions, 1133 flow. Second operand has 12 states, 12 states have (on average 87.25) internal successors, (1047), 12 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:14,470 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:14,470 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 142 [2021-03-24 19:46:14,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:14,742 INFO L129 PetriNetUnfolder]: 56/194 cut-off events. [2021-03-24 19:46:14,742 INFO L130 PetriNetUnfolder]: For 2900/2937 co-relation queries the response was YES. [2021-03-24 19:46:14,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1514 conditions, 194 events. 56/194 cut-off events. For 2900/2937 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 900 event pairs, 3 based on Foata normal form. 20/213 useless extension candidates. Maximal degree in co-relation 1449. Up to 100 conditions per place. [2021-03-24 19:46:14,745 INFO L132 encePairwiseOnDemand]: 128/142 looper letters, 46 selfloop transitions, 28 changer transitions 8/97 dead transitions. [2021-03-24 19:46:14,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 97 transitions, 1457 flow [2021-03-24 19:46:14,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 19:46:14,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 19:46:14,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1071 transitions. [2021-03-24 19:46:14,748 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6285211267605634 [2021-03-24 19:46:14,748 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1071 transitions. [2021-03-24 19:46:14,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1071 transitions. [2021-03-24 19:46:14,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:14,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1071 transitions. [2021-03-24 19:46:14,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 89.25) internal successors, (1071), 12 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:14,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:14,753 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:14,753 INFO L185 Difference]: Start difference. First operand has 111 places, 86 transitions, 1133 flow. Second operand 12 states and 1071 transitions. [2021-03-24 19:46:14,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 97 transitions, 1457 flow [2021-03-24 19:46:14,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 97 transitions, 1379 flow, removed 23 selfloop flow, removed 12 redundant places. [2021-03-24 19:46:14,767 INFO L241 Difference]: Finished difference. Result has 109 places, 87 transitions, 1141 flow [2021-03-24 19:46:14,767 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=1061, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1141, PETRI_PLACES=109, PETRI_TRANSITIONS=87} [2021-03-24 19:46:14,767 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 71 predicate places. [2021-03-24 19:46:14,767 INFO L480 AbstractCegarLoop]: Abstraction has has 109 places, 87 transitions, 1141 flow [2021-03-24 19:46:14,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 87.25) internal successors, (1047), 12 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:14,768 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:14,768 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:46:14,768 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-24 19:46:14,768 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:14,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:14,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1892293753, now seen corresponding path program 3 times [2021-03-24 19:46:14,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:14,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395972387] [2021-03-24 19:46:14,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:14,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:14,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:14,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:46:14,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:46:14,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 19:46:14,879 INFO L142 QuantifierPusher]: treesize reduction 12, result has 83.1 percent of original size [2021-03-24 19:46:14,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 19:46:14,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 19:46:14,933 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-24 19:46:14,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 19:46:14,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:14,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:14,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:14,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:14,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395972387] [2021-03-24 19:46:14,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:14,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-24 19:46:14,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890758602] [2021-03-24 19:46:14,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 19:46:14,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:14,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 19:46:14,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-24 19:46:14,984 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 142 [2021-03-24 19:46:14,985 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 87 transitions, 1141 flow. Second operand has 11 states, 11 states have (on average 85.36363636363636) internal successors, (939), 11 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:14,985 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:14,985 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 142 [2021-03-24 19:46:14,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:15,245 INFO L129 PetriNetUnfolder]: 64/222 cut-off events. [2021-03-24 19:46:15,245 INFO L130 PetriNetUnfolder]: For 3063/3107 co-relation queries the response was YES. [2021-03-24 19:46:15,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1647 conditions, 222 events. 64/222 cut-off events. For 3063/3107 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1102 event pairs, 3 based on Foata normal form. 24/246 useless extension candidates. Maximal degree in co-relation 1585. Up to 99 conditions per place. [2021-03-24 19:46:15,248 INFO L132 encePairwiseOnDemand]: 132/142 looper letters, 58 selfloop transitions, 11 changer transitions 28/112 dead transitions. [2021-03-24 19:46:15,248 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 112 transitions, 1665 flow [2021-03-24 19:46:15,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:46:15,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:46:15,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 792 transitions. [2021-03-24 19:46:15,250 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6197183098591549 [2021-03-24 19:46:15,250 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 792 transitions. [2021-03-24 19:46:15,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 792 transitions. [2021-03-24 19:46:15,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:15,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 792 transitions. [2021-03-24 19:46:15,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 88.0) internal successors, (792), 9 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:15,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 142.0) internal successors, (1420), 10 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) [2021-03-24 19:46:15,253 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 142.0) internal successors, (1420), 10 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) [2021-03-24 19:46:15,253 INFO L185 Difference]: Start difference. First operand has 109 places, 87 transitions, 1141 flow. Second operand 9 states and 792 transitions. [2021-03-24 19:46:15,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 112 transitions, 1665 flow [2021-03-24 19:46:15,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 112 transitions, 1631 flow, removed 7 selfloop flow, removed 7 redundant places. [2021-03-24 19:46:15,267 INFO L241 Difference]: Finished difference. Result has 112 places, 83 transitions, 1056 flow [2021-03-24 19:46:15,267 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=1113, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1056, PETRI_PLACES=112, PETRI_TRANSITIONS=83} [2021-03-24 19:46:15,268 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 74 predicate places. [2021-03-24 19:46:15,268 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 83 transitions, 1056 flow [2021-03-24 19:46:15,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 85.36363636363636) internal successors, (939), 11 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:15,268 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:15,268 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:46:15,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-24 19:46:15,268 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:15,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:15,269 INFO L82 PathProgramCache]: Analyzing trace with hash -446848215, now seen corresponding path program 4 times [2021-03-24 19:46:15,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:15,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834146470] [2021-03-24 19:46:15,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:15,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:15,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:15,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:15,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:15,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:15,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:46:15,356 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-03-24 19:46:15,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 19:46:15,370 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-03-24 19:46:15,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 19:46:15,371 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-03-24 19:46:15,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 19:46:15,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:15,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 19:46:15,389 INFO L142 QuantifierPusher]: treesize reduction 18, result has 63.3 percent of original size [2021-03-24 19:46:15,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 19:46:15,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:15,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 19:46:15,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:15,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:15,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834146470] [2021-03-24 19:46:15,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:15,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 19:46:15,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495699247] [2021-03-24 19:46:15,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-24 19:46:15,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:15,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-24 19:46:15,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-24 19:46:15,444 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 142 [2021-03-24 19:46:15,445 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 83 transitions, 1056 flow. Second operand has 9 states, 9 states have (on average 86.66666666666667) internal successors, (780), 9 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:15,445 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:15,445 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 142 [2021-03-24 19:46:15,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:15,811 INFO L129 PetriNetUnfolder]: 46/172 cut-off events. [2021-03-24 19:46:15,811 INFO L130 PetriNetUnfolder]: For 2317/2379 co-relation queries the response was YES. [2021-03-24 19:46:15,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1279 conditions, 172 events. 46/172 cut-off events. For 2317/2379 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 766 event pairs, 3 based on Foata normal form. 16/188 useless extension candidates. Maximal degree in co-relation 1216. Up to 79 conditions per place. [2021-03-24 19:46:15,813 INFO L132 encePairwiseOnDemand]: 132/142 looper letters, 49 selfloop transitions, 19 changer transitions 9/92 dead transitions. [2021-03-24 19:46:15,813 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 92 transitions, 1341 flow [2021-03-24 19:46:15,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 19:46:15,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 19:46:15,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 710 transitions. [2021-03-24 19:46:15,817 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.625 [2021-03-24 19:46:15,817 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 710 transitions. [2021-03-24 19:46:15,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 710 transitions. [2021-03-24 19:46:15,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:15,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 710 transitions. [2021-03-24 19:46:15,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 88.75) internal successors, (710), 8 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:15,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:15,820 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:15,820 INFO L185 Difference]: Start difference. First operand has 112 places, 83 transitions, 1056 flow. Second operand 8 states and 710 transitions. [2021-03-24 19:46:15,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 92 transitions, 1341 flow [2021-03-24 19:46:15,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 92 transitions, 1300 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-03-24 19:46:15,833 INFO L241 Difference]: Finished difference. Result has 110 places, 81 transitions, 1026 flow [2021-03-24 19:46:15,833 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=1017, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1026, PETRI_PLACES=110, PETRI_TRANSITIONS=81} [2021-03-24 19:46:15,833 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 72 predicate places. [2021-03-24 19:46:15,833 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 81 transitions, 1026 flow [2021-03-24 19:46:15,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 86.66666666666667) internal successors, (780), 9 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:15,833 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:15,833 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:46:15,834 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-24 19:46:15,834 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:15,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:15,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1632752887, now seen corresponding path program 5 times [2021-03-24 19:46:15,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:15,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737802533] [2021-03-24 19:46:15,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:15,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:15,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:15,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:15,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:15,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:15,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:15,916 INFO L142 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-03-24 19:46:15,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 19:46:15,938 INFO L142 QuantifierPusher]: treesize reduction 12, result has 80.6 percent of original size [2021-03-24 19:46:15,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 19:46:15,962 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-03-24 19:46:15,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 19:46:15,977 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-03-24 19:46:15,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 19:46:15,996 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-03-24 19:46:15,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 19:46:16,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:16,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 19:46:16,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:16,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:16,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:16,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737802533] [2021-03-24 19:46:16,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:16,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-24 19:46:16,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236861554] [2021-03-24 19:46:16,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 19:46:16,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:16,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 19:46:16,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-24 19:46:16,040 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 142 [2021-03-24 19:46:16,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 81 transitions, 1026 flow. Second operand has 11 states, 11 states have (on average 86.36363636363636) internal successors, (950), 11 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:16,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:16,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 142 [2021-03-24 19:46:16,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:16,552 INFO L129 PetriNetUnfolder]: 52/196 cut-off events. [2021-03-24 19:46:16,552 INFO L130 PetriNetUnfolder]: For 2943/2985 co-relation queries the response was YES. [2021-03-24 19:46:16,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1464 conditions, 196 events. 52/196 cut-off events. For 2943/2985 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 935 event pairs, 6 based on Foata normal form. 18/214 useless extension candidates. Maximal degree in co-relation 1404. Up to 58 conditions per place. [2021-03-24 19:46:16,554 INFO L132 encePairwiseOnDemand]: 131/142 looper letters, 23 selfloop transitions, 9 changer transitions 48/95 dead transitions. [2021-03-24 19:46:16,554 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 95 transitions, 1434 flow [2021-03-24 19:46:16,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 19:46:16,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 19:46:16,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1151 transitions. [2021-03-24 19:46:16,556 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6235102925243771 [2021-03-24 19:46:16,556 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1151 transitions. [2021-03-24 19:46:16,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1151 transitions. [2021-03-24 19:46:16,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:16,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1151 transitions. [2021-03-24 19:46:16,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 88.53846153846153) internal successors, (1151), 13 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:16,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 142.0) internal successors, (1988), 14 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:16,560 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 142.0) internal successors, (1988), 14 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:16,560 INFO L185 Difference]: Start difference. First operand has 110 places, 81 transitions, 1026 flow. Second operand 13 states and 1151 transitions. [2021-03-24 19:46:16,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 95 transitions, 1434 flow [2021-03-24 19:46:16,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 95 transitions, 1341 flow, removed 12 selfloop flow, removed 8 redundant places. [2021-03-24 19:46:16,577 INFO L241 Difference]: Finished difference. Result has 116 places, 45 transitions, 429 flow [2021-03-24 19:46:16,577 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=953, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=429, PETRI_PLACES=116, PETRI_TRANSITIONS=45} [2021-03-24 19:46:16,577 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 78 predicate places. [2021-03-24 19:46:16,577 INFO L480 AbstractCegarLoop]: Abstraction has has 116 places, 45 transitions, 429 flow [2021-03-24 19:46:16,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 86.36363636363636) internal successors, (950), 11 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:16,578 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:16,578 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:46:16,578 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-24 19:46:16,578 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:16,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:16,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1148154719, now seen corresponding path program 6 times [2021-03-24 19:46:16,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:16,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197053140] [2021-03-24 19:46:16,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:16,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:16,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:16,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:16,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:16,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:16,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:16,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:16,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:46:16,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:16,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:16,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:16,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:16,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:16,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197053140] [2021-03-24 19:46:16,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:16,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:46:16,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355613776] [2021-03-24 19:46:16,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 19:46:16,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:16,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 19:46:16,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-24 19:46:16,670 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 142 [2021-03-24 19:46:16,670 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 45 transitions, 429 flow. Second operand has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:16,670 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:16,671 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 142 [2021-03-24 19:46:16,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:16,803 INFO L129 PetriNetUnfolder]: 13/62 cut-off events. [2021-03-24 19:46:16,803 INFO L130 PetriNetUnfolder]: For 846/859 co-relation queries the response was YES. [2021-03-24 19:46:16,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 406 conditions, 62 events. 13/62 cut-off events. For 846/859 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 123 event pairs, 3 based on Foata normal form. 4/66 useless extension candidates. Maximal degree in co-relation 374. Up to 16 conditions per place. [2021-03-24 19:46:16,804 INFO L132 encePairwiseOnDemand]: 136/142 looper letters, 16 selfloop transitions, 2 changer transitions 14/47 dead transitions. [2021-03-24 19:46:16,804 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 47 transitions, 537 flow [2021-03-24 19:46:16,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:46:16,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:46:16,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 675 transitions. [2021-03-24 19:46:16,806 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6790744466800804 [2021-03-24 19:46:16,806 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 675 transitions. [2021-03-24 19:46:16,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 675 transitions. [2021-03-24 19:46:16,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:16,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 675 transitions. [2021-03-24 19:46:16,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 96.42857142857143) internal successors, (675), 7 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:16,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 142.0) internal successors, (1136), 8 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:16,809 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 142.0) internal successors, (1136), 8 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:16,809 INFO L185 Difference]: Start difference. First operand has 116 places, 45 transitions, 429 flow. Second operand 7 states and 675 transitions. [2021-03-24 19:46:16,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 47 transitions, 537 flow [2021-03-24 19:46:16,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 47 transitions, 406 flow, removed 20 selfloop flow, removed 34 redundant places. [2021-03-24 19:46:16,813 INFO L241 Difference]: Finished difference. Result has 84 places, 33 transitions, 208 flow [2021-03-24 19:46:16,813 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=208, PETRI_PLACES=84, PETRI_TRANSITIONS=33} [2021-03-24 19:46:16,814 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 46 predicate places. [2021-03-24 19:46:16,814 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 33 transitions, 208 flow [2021-03-24 19:46:16,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:16,814 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:46:16,814 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] [2021-03-24 19:46:16,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-24 19:46:16,814 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:46:16,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:46:16,814 INFO L82 PathProgramCache]: Analyzing trace with hash 669401217, now seen corresponding path program 1 times [2021-03-24 19:46:16,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:46:16,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092982544] [2021-03-24 19:46:16,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:46:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:46:16,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:16,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:46:16,910 INFO L142 QuantifierPusher]: treesize reduction 5, result has 37.5 percent of original size [2021-03-24 19:46:16,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:46:16,913 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-24 19:46:16,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:46:16,921 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-24 19:46:16,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:46:16,930 INFO L142 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-03-24 19:46:16,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 19:46:16,943 INFO L142 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-03-24 19:46:16,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 19:46:16,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:16,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 19:46:16,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:16,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 19:46:16,988 INFO L142 QuantifierPusher]: treesize reduction 27, result has 71.0 percent of original size [2021-03-24 19:46:16,988 INFO L147 QuantifierPusher]: treesize reduction 9, result has 86.4 percent of original size 57 [2021-03-24 19:46:17,041 INFO L142 QuantifierPusher]: treesize reduction 57, result has 71.2 percent of original size [2021-03-24 19:46:17,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-03-24 19:46:17,099 INFO L142 QuantifierPusher]: treesize reduction 40, result has 75.8 percent of original size [2021-03-24 19:46:17,101 INFO L147 QuantifierPusher]: treesize reduction 9, result has 92.8 percent of original size 116 [2021-03-24 19:46:17,177 INFO L142 QuantifierPusher]: treesize reduction 42, result has 73.9 percent of original size [2021-03-24 19:46:17,178 INFO L147 QuantifierPusher]: treesize reduction 9, result has 92.4 percent of original size 110 [2021-03-24 19:46:17,240 INFO L142 QuantifierPusher]: treesize reduction 35, result has 36.4 percent of original size [2021-03-24 19:46:17,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 19:46:17,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:17,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:17,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:46:17,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:46:17,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:46:17,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092982544] [2021-03-24 19:46:17,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:46:17,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-24 19:46:17,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169060661] [2021-03-24 19:46:17,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-24 19:46:17,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:46:17,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-24 19:46:17,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-03-24 19:46:17,288 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 142 [2021-03-24 19:46:17,289 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 33 transitions, 208 flow. Second operand has 16 states, 16 states have (on average 76.0625) internal successors, (1217), 16 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:17,289 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:46:17,289 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 142 [2021-03-24 19:46:17,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:46:17,546 INFO L129 PetriNetUnfolder]: 15/56 cut-off events. [2021-03-24 19:46:17,546 INFO L130 PetriNetUnfolder]: For 458/458 co-relation queries the response was YES. [2021-03-24 19:46:17,547 INFO L84 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 56 events. 15/56 cut-off events. For 458/458 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 2 based on Foata normal form. 4/60 useless extension candidates. Maximal degree in co-relation 252. Up to 10 conditions per place. [2021-03-24 19:46:17,547 INFO L132 encePairwiseOnDemand]: 130/142 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2021-03-24 19:46:17,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 43 transitions, 357 flow [2021-03-24 19:46:17,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-24 19:46:17,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-24 19:46:17,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1084 transitions. [2021-03-24 19:46:17,549 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.545271629778672 [2021-03-24 19:46:17,549 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1084 transitions. [2021-03-24 19:46:17,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1084 transitions. [2021-03-24 19:46:17,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:46:17,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1084 transitions. [2021-03-24 19:46:17,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 77.42857142857143) internal successors, (1084), 14 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:17,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 142.0) internal successors, (2130), 15 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) [2021-03-24 19:46:17,553 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 142.0) internal successors, (2130), 15 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) [2021-03-24 19:46:17,553 INFO L185 Difference]: Start difference. First operand has 84 places, 33 transitions, 208 flow. Second operand 14 states and 1084 transitions. [2021-03-24 19:46:17,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 43 transitions, 357 flow [2021-03-24 19:46:17,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 43 transitions, 268 flow, removed 24 selfloop flow, removed 21 redundant places. [2021-03-24 19:46:17,555 INFO L241 Difference]: Finished difference. Result has 65 places, 0 transitions, 0 flow [2021-03-24 19:46:17,555 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=0, PETRI_PLACES=65, PETRI_TRANSITIONS=0} [2021-03-24 19:46:17,556 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 27 predicate places. [2021-03-24 19:46:17,556 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 0 transitions, 0 flow [2021-03-24 19:46:17,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 76.0625) internal successors, (1217), 16 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:46:17,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-24 19:46:17,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 07:46:17 BasicIcfg [2021-03-24 19:46:17,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 19:46:17,560 INFO L168 Benchmark]: Toolchain (without parser) took 24837.35 ms. Allocated memory was 333.4 MB in the beginning and 729.8 MB in the end (delta: 396.4 MB). Free memory was 296.5 MB in the beginning and 293.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 402.2 MB. Max. memory is 16.0 GB. [2021-03-24 19:46:17,560 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 333.4 MB. Free memory is still 314.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 19:46:17,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.19 ms. Allocated memory is still 333.4 MB. Free memory was 296.3 MB in the beginning and 291.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.0 GB. [2021-03-24 19:46:17,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.81 ms. Allocated memory is still 333.4 MB. Free memory was 291.4 MB in the beginning and 287.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-24 19:46:17,561 INFO L168 Benchmark]: Boogie Preprocessor took 37.15 ms. Allocated memory is still 333.4 MB. Free memory was 287.2 MB in the beginning and 285.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:46:17,561 INFO L168 Benchmark]: RCFGBuilder took 2661.40 ms. Allocated memory was 333.4 MB in the beginning and 427.8 MB in the end (delta: 94.4 MB). Free memory was 284.0 MB in the beginning and 305.6 MB in the end (delta: -21.6 MB). Peak memory consumption was 168.2 MB. Max. memory is 16.0 GB. [2021-03-24 19:46:17,561 INFO L168 Benchmark]: TraceAbstraction took 21548.46 ms. Allocated memory was 427.8 MB in the beginning and 729.8 MB in the end (delta: 302.0 MB). Free memory was 305.6 MB in the beginning and 293.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 314.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:46:17,561 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 333.4 MB. Free memory is still 314.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 527.19 ms. Allocated memory is still 333.4 MB. Free memory was 296.3 MB in the beginning and 291.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.81 ms. Allocated memory is still 333.4 MB. Free memory was 291.4 MB in the beginning and 287.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 37.15 ms. Allocated memory is still 333.4 MB. Free memory was 287.2 MB in the beginning and 285.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 2661.40 ms. Allocated memory was 333.4 MB in the beginning and 427.8 MB in the end (delta: 94.4 MB). Free memory was 284.0 MB in the beginning and 305.6 MB in the end (delta: -21.6 MB). Peak memory consumption was 168.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 21548.46 ms. Allocated memory was 427.8 MB in the beginning and 729.8 MB in the end (delta: 302.0 MB). Free memory was 305.6 MB in the beginning and 293.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 314.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9021.9ms, 88 PlacesBefore, 38 PlacesAfterwards, 83 TransitionsBefore, 32 TransitionsAfterwards, 1124 CoEnabledTransitionPairs, 4 FixpointIterations, 25 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 57 TotalNumberOfCompositions, 1858 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 939, positive: 879, positive conditional: 0, positive unconditional: 879, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 706, positive: 675, positive conditional: 0, positive unconditional: 675, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 706, positive: 675, positive conditional: 0, positive unconditional: 675, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 706, positive: 666, positive conditional: 0, positive unconditional: 666, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 835, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 816, negative conditional: 0, negative unconditional: 816, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 939, positive: 204, positive conditional: 0, positive unconditional: 204, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 706, unknown conditional: 0, unknown unconditional: 706] , Statistics on independence cache: Total cache size (in pairs): 74, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 21392.9ms, OverallIterations: 21, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 7279.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9118.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 207 SDtfs, 424 SDslu, 522 SDs, 0 SdLazy, 2338 SolverSat, 659 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2937.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 273 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 3928.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1141occurred in iteration=16, InterpolantAutomatonStates: 212, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 83.2ms SsaConstructionTime, 704.4ms SatisfiabilityAnalysisTime, 3912.0ms InterpolantComputationTime, 468 NumberOfCodeBlocks, 468 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 447 ConstructedInterpolants, 0 QuantifiedInterpolants, 4072 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...