/usr/bin/java -Xmx8000000000 -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-NoLbe-OGIterative.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 01:04:14,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 01:04:14,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 01:04:14,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 01:04:14,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 01:04:14,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 01:04:14,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 01:04:14,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 01:04:14,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 01:04:14,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 01:04:14,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 01:04:14,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 01:04:14,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 01:04:14,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 01:04:14,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 01:04:14,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 01:04:14,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 01:04:14,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 01:04:14,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 01:04:14,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 01:04:14,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 01:04:14,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 01:04:14,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 01:04:14,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 01:04:14,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 01:04:14,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 01:04:14,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 01:04:14,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 01:04:14,316 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-NoLbe-OGIterative.epf [2021-08-13 01:04:14,354 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 01:04:14,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 01:04:14,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 01:04:14,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 01:04:14,358 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 01:04:14,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 01:04:14,358 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 01:04:14,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 01:04:14,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 01:04:14,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 01:04:14,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 01:04:14,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 01:04:14,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 01:04:14,360 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 01:04:14,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 01:04:14,360 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 01:04:14,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 01:04:14,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 01:04:14,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 01:04:14,361 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 01:04:14,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 01:04:14,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 01:04:14,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 01:04:14,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 01:04:14,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 01:04:14,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 01:04:14,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 01:04:14,363 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 01:04:14,363 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 01:04:14,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 01:04:14,363 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 01:04:14,363 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 01:04:14,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 01:04:14,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 01:04:14,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 01:04:14,684 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 01:04:14,685 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 01:04:14,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2021-08-13 01:04:14,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0140d7a/57af2cbb3fca49a9ac6291e153668d7a/FLAGec3a862ab [2021-08-13 01:04:15,244 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 01:04:15,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2021-08-13 01:04:15,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0140d7a/57af2cbb3fca49a9ac6291e153668d7a/FLAGec3a862ab [2021-08-13 01:04:15,591 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0140d7a/57af2cbb3fca49a9ac6291e153668d7a [2021-08-13 01:04:15,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 01:04:15,595 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 01:04:15,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 01:04:15,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 01:04:15,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 01:04:15,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:04:15" (1/1) ... [2021-08-13 01:04:15,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@795724a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:04:15, skipping insertion in model container [2021-08-13 01:04:15,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:04:15" (1/1) ... [2021-08-13 01:04:15,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 01:04:15,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 01:04:15,836 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i[950,963] [2021-08-13 01:04:15,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 01:04:15,955 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 01:04:15,965 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i[950,963] [2021-08-13 01:04:15,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 01:04:16,043 INFO L208 MainTranslator]: Completed translation [2021-08-13 01:04:16,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:04:16 WrapperNode [2021-08-13 01:04:16,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 01:04:16,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 01:04:16,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 01:04:16,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 01:04:16,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:04:16" (1/1) ... [2021-08-13 01:04:16,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:04:16" (1/1) ... [2021-08-13 01:04:16,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 01:04:16,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 01:04:16,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 01:04:16,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 01:04:16,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:04:16" (1/1) ... [2021-08-13 01:04:16,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:04:16" (1/1) ... [2021-08-13 01:04:16,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:04:16" (1/1) ... [2021-08-13 01:04:16,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:04:16" (1/1) ... [2021-08-13 01:04:16,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:04:16" (1/1) ... [2021-08-13 01:04:16,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:04:16" (1/1) ... [2021-08-13 01:04:16,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:04:16" (1/1) ... [2021-08-13 01:04:16,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 01:04:16,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 01:04:16,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 01:04:16,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 01:04:16,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:04:16" (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 [2021-08-13 01:04:16,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 01:04:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 01:04:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 01:04:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 01:04:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 01:04:16,192 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 01:04:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 01:04:16,192 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 01:04:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 01:04:16,192 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 01:04:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 01:04:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 01:04:16,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 01:04:16,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 01:04:16,194 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 01:04:16,587 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 01:04:16,588 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 01:04:16,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 01:04:16 BoogieIcfgContainer [2021-08-13 01:04:16,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 01:04:16,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 01:04:16,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 01:04:16,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 01:04:16,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 01:04:15" (1/3) ... [2021-08-13 01:04:16,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b26a28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 01:04:16, skipping insertion in model container [2021-08-13 01:04:16,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:04:16" (2/3) ... [2021-08-13 01:04:16,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b26a28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 01:04:16, skipping insertion in model container [2021-08-13 01:04:16,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 01:04:16" (3/3) ... [2021-08-13 01:04:16,598 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc.i [2021-08-13 01:04:16,603 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 01:04:16,605 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 01:04:16,605 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 01:04:16,637 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,638 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,638 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,638 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,638 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,638 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,639 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,639 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,639 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,639 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,639 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,640 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,640 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,640 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,641 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,641 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,642 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,643 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,643 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,643 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,644 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,644 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,644 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,646 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,646 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,646 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,647 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,651 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,651 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:04:16,655 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 01:04:16,676 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-13 01:04:16,695 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 01:04:16,695 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 01:04:16,695 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 01:04:16,695 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 01:04:16,696 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 01:04:16,696 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 01:04:16,696 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 01:04:16,696 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 01:04:16,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 82 transitions, 179 flow [2021-08-13 01:04:16,740 INFO L129 PetriNetUnfolder]: 2/79 cut-off events. [2021-08-13 01:04:16,741 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:04:16,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 79 events. 2/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-08-13 01:04:16,744 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 82 transitions, 179 flow [2021-08-13 01:04:16,747 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 67 transitions, 143 flow [2021-08-13 01:04:16,764 INFO L129 PetriNetUnfolder]: 1/66 cut-off events. [2021-08-13 01:04:16,765 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:04:16,765 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:04:16,766 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 01:04:16,766 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:04:16,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:04:16,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1333187383, now seen corresponding path program 1 times [2021-08-13 01:04:16,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:04:16,778 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336927126] [2021-08-13 01:04:16,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:04:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:04:17,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:17,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:17,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:17,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:04:17,085 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 01:04:17,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 01:04:17,099 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:04:17,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:04:17,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:17,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:04:17,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:17,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:04:17,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:17,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:17,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:04:17,146 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:04:17,147 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336927126] [2021-08-13 01:04:17,147 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336927126] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:04:17,147 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:04:17,147 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:04:17,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835044467] [2021-08-13 01:04:17,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:04:17,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:04:17,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:04:17,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:04:17,171 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 82 [2021-08-13 01:04:17,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 67 transitions, 143 flow. Second operand has 7 states, 7 states have (on average 66.28571428571429) internal successors, (464), 7 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:17,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:04:17,176 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 82 [2021-08-13 01:04:17,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:04:17,548 INFO L129 PetriNetUnfolder]: 87/302 cut-off events. [2021-08-13 01:04:17,548 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:04:17,550 INFO L84 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 302 events. 87/302 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1341 event pairs, 10 based on Foata normal form. 14/305 useless extension candidates. Maximal degree in co-relation 466. Up to 60 conditions per place. [2021-08-13 01:04:17,553 INFO L132 encePairwiseOnDemand]: 72/82 looper letters, 16 selfloop transitions, 5 changer transitions 35/109 dead transitions. [2021-08-13 01:04:17,553 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 109 transitions, 339 flow [2021-08-13 01:04:17,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 01:04:17,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 01:04:17,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 907 transitions. [2021-08-13 01:04:17,569 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.850844277673546 [2021-08-13 01:04:17,570 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 907 transitions. [2021-08-13 01:04:17,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 907 transitions. [2021-08-13 01:04:17,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:04:17,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 907 transitions. [2021-08-13 01:04:17,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 69.76923076923077) internal successors, (907), 13 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:17,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:17,612 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:17,613 INFO L348 CegarLoopForPetriNet]: 76 programPoint places, 12 predicate places. [2021-08-13 01:04:17,613 INFO L482 AbstractCegarLoop]: Abstraction has has 88 places, 109 transitions, 339 flow [2021-08-13 01:04:17,614 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 66.28571428571429) internal successors, (464), 7 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:17,614 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:04:17,614 INFO L266 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, 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] [2021-08-13 01:04:17,614 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 01:04:17,614 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:04:17,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:04:17,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1568456168, now seen corresponding path program 1 times [2021-08-13 01:04:17,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:04:17,615 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738147984] [2021-08-13 01:04:17,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:04:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:04:17,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:17,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:17,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:17,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:04:17,697 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 01:04:17,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 01:04:17,714 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:04:17,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:04:17,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:17,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:04:17,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:17,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:04:17,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:17,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:17,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:04:17,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:04:17,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738147984] [2021-08-13 01:04:17,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738147984] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:04:17,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:04:17,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:04:17,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156807571] [2021-08-13 01:04:17,781 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:04:17,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:04:17,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:04:17,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:04:17,787 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 82 [2021-08-13 01:04:17,789 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 109 transitions, 339 flow. Second operand has 7 states, 7 states have (on average 64.57142857142857) internal successors, (452), 7 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:17,789 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:04:17,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 82 [2021-08-13 01:04:17,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:04:18,373 INFO L129 PetriNetUnfolder]: 485/1246 cut-off events. [2021-08-13 01:04:18,373 INFO L130 PetriNetUnfolder]: For 84/521 co-relation queries the response was YES. [2021-08-13 01:04:18,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2774 conditions, 1246 events. 485/1246 cut-off events. For 84/521 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 9054 event pairs, 5 based on Foata normal form. 22/1249 useless extension candidates. Maximal degree in co-relation 2736. Up to 202 conditions per place. [2021-08-13 01:04:18,385 INFO L132 encePairwiseOnDemand]: 71/82 looper letters, 30 selfloop transitions, 18 changer transitions 236/335 dead transitions. [2021-08-13 01:04:18,385 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 335 transitions, 1797 flow [2021-08-13 01:04:18,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 01:04:18,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 01:04:18,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1180 transitions. [2021-08-13 01:04:18,394 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8464849354375896 [2021-08-13 01:04:18,395 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1180 transitions. [2021-08-13 01:04:18,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1180 transitions. [2021-08-13 01:04:18,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:04:18,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1180 transitions. [2021-08-13 01:04:18,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 69.41176470588235) internal successors, (1180), 17 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:18,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 82.0) internal successors, (1476), 18 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:18,410 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 82.0) internal successors, (1476), 18 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:18,411 INFO L348 CegarLoopForPetriNet]: 76 programPoint places, 28 predicate places. [2021-08-13 01:04:18,411 INFO L482 AbstractCegarLoop]: Abstraction has has 104 places, 335 transitions, 1797 flow [2021-08-13 01:04:18,411 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 64.57142857142857) internal successors, (452), 7 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:18,412 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:04:18,412 INFO L266 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, 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, 1, 1] [2021-08-13 01:04:18,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 01:04:18,412 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:04:18,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:04:18,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1925173879, now seen corresponding path program 1 times [2021-08-13 01:04:18,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:04:18,416 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067107858] [2021-08-13 01:04:18,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:04:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:04:18,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:18,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:18,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:18,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:04:18,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:18,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:04:18,495 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:04:18,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:04:18,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:18,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:04:18,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:18,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:04:18,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:18,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:18,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:04:18,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:04:18,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067107858] [2021-08-13 01:04:18,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067107858] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:04:18,539 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:04:18,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:04:18,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831920494] [2021-08-13 01:04:18,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:04:18,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:04:18,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:04:18,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:04:18,543 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 82 [2021-08-13 01:04:18,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 335 transitions, 1797 flow. Second operand has 7 states, 7 states have (on average 68.28571428571429) internal successors, (478), 7 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:18,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:04:18,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 82 [2021-08-13 01:04:18,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:04:18,921 INFO L129 PetriNetUnfolder]: 522/1491 cut-off events. [2021-08-13 01:04:18,921 INFO L130 PetriNetUnfolder]: For 404/2408 co-relation queries the response was YES. [2021-08-13 01:04:18,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4006 conditions, 1491 events. 522/1491 cut-off events. For 404/2408 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 12081 event pairs, 10 based on Foata normal form. 34/1503 useless extension candidates. Maximal degree in co-relation 3964. Up to 227 conditions per place. [2021-08-13 01:04:18,928 INFO L132 encePairwiseOnDemand]: 74/82 looper letters, 14 selfloop transitions, 6 changer transitions 316/394 dead transitions. [2021-08-13 01:04:18,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 394 transitions, 2661 flow [2021-08-13 01:04:18,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 01:04:18,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 01:04:18,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 916 transitions. [2021-08-13 01:04:18,932 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8592870544090057 [2021-08-13 01:04:18,932 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 916 transitions. [2021-08-13 01:04:18,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 916 transitions. [2021-08-13 01:04:18,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:04:18,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 916 transitions. [2021-08-13 01:04:18,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 70.46153846153847) internal successors, (916), 13 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:18,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:18,937 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:18,938 INFO L348 CegarLoopForPetriNet]: 76 programPoint places, 40 predicate places. [2021-08-13 01:04:18,938 INFO L482 AbstractCegarLoop]: Abstraction has has 116 places, 394 transitions, 2661 flow [2021-08-13 01:04:18,938 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 68.28571428571429) internal successors, (478), 7 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:18,938 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:04:18,938 INFO L266 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, 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, 1, 1] [2021-08-13 01:04:18,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 01:04:18,939 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:04:18,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:04:18,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1723190985, now seen corresponding path program 1 times [2021-08-13 01:04:18,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:04:18,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411776378] [2021-08-13 01:04:18,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:04:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:04:18,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:18,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:18,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:18,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:04:18,991 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:04:18,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:04:19,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:19,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:04:19,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:19,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:04:19,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:19,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:19,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:04:19,045 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:04:19,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411776378] [2021-08-13 01:04:19,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411776378] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:04:19,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:04:19,046 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 01:04:19,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140942138] [2021-08-13 01:04:19,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 01:04:19,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:04:19,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 01:04:19,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 01:04:19,049 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 82 [2021-08-13 01:04:19,050 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 394 transitions, 2661 flow. Second operand has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:19,050 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:04:19,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 82 [2021-08-13 01:04:19,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:04:19,376 INFO L129 PetriNetUnfolder]: 591/1683 cut-off events. [2021-08-13 01:04:19,376 INFO L130 PetriNetUnfolder]: For 1022/3225 co-relation queries the response was YES. [2021-08-13 01:04:19,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5304 conditions, 1683 events. 591/1683 cut-off events. For 1022/3225 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 14304 event pairs, 9 based on Foata normal form. 17/1681 useless extension candidates. Maximal degree in co-relation 5259. Up to 350 conditions per place. [2021-08-13 01:04:19,384 INFO L132 encePairwiseOnDemand]: 75/82 looper letters, 12 selfloop transitions, 5 changer transitions 408/487 dead transitions. [2021-08-13 01:04:19,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 487 transitions, 3915 flow [2021-08-13 01:04:19,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 01:04:19,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 01:04:19,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 653 transitions. [2021-08-13 01:04:19,387 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8848238482384824 [2021-08-13 01:04:19,387 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 653 transitions. [2021-08-13 01:04:19,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 653 transitions. [2021-08-13 01:04:19,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:04:19,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 653 transitions. [2021-08-13 01:04:19,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 72.55555555555556) internal successors, (653), 9 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:19,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:19,391 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:19,391 INFO L348 CegarLoopForPetriNet]: 76 programPoint places, 48 predicate places. [2021-08-13 01:04:19,391 INFO L482 AbstractCegarLoop]: Abstraction has has 124 places, 487 transitions, 3915 flow [2021-08-13 01:04:19,396 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:19,396 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:04:19,396 INFO L266 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, 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, 1, 1, 1, 1] [2021-08-13 01:04:19,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 01:04:19,396 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:04:19,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:04:19,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1742570440, now seen corresponding path program 1 times [2021-08-13 01:04:19,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:04:19,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757017691] [2021-08-13 01:04:19,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:04:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:04:19,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:19,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:19,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:19,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:04:19,457 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 01:04:19,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 01:04:19,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:19,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 01:04:19,481 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 01:04:19,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:04:19,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:19,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:19,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:04:19,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:04:19,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757017691] [2021-08-13 01:04:19,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757017691] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:04:19,491 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:04:19,491 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 01:04:19,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876148677] [2021-08-13 01:04:19,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 01:04:19,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:04:19,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 01:04:19,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 01:04:19,493 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 82 [2021-08-13 01:04:19,494 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 487 transitions, 3915 flow. Second operand has 6 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:19,494 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:04:19,494 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 82 [2021-08-13 01:04:19,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:04:20,043 INFO L129 PetriNetUnfolder]: 1089/2963 cut-off events. [2021-08-13 01:04:20,043 INFO L130 PetriNetUnfolder]: For 870/1096 co-relation queries the response was YES. [2021-08-13 01:04:20,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7903 conditions, 2963 events. 1089/2963 cut-off events. For 870/1096 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 27847 event pairs, 38 based on Foata normal form. 20/2777 useless extension candidates. Maximal degree in co-relation 7855. Up to 677 conditions per place. [2021-08-13 01:04:20,061 INFO L132 encePairwiseOnDemand]: 72/82 looper letters, 21 selfloop transitions, 15 changer transitions 231/380 dead transitions. [2021-08-13 01:04:20,061 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 380 transitions, 2861 flow [2021-08-13 01:04:20,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 01:04:20,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 01:04:20,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 723 transitions. [2021-08-13 01:04:20,064 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8817073170731707 [2021-08-13 01:04:20,064 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 723 transitions. [2021-08-13 01:04:20,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 723 transitions. [2021-08-13 01:04:20,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:04:20,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 723 transitions. [2021-08-13 01:04:20,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.3) internal successors, (723), 10 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:20,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:20,068 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:20,068 INFO L348 CegarLoopForPetriNet]: 76 programPoint places, 57 predicate places. [2021-08-13 01:04:20,068 INFO L482 AbstractCegarLoop]: Abstraction has has 133 places, 380 transitions, 2861 flow [2021-08-13 01:04:20,068 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:20,068 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:04:20,068 INFO L266 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, 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, 1, 1, 1, 1, 1] [2021-08-13 01:04:20,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 01:04:20,069 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:04:20,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:04:20,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1568796082, now seen corresponding path program 1 times [2021-08-13 01:04:20,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:04:20,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784575888] [2021-08-13 01:04:20,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:04:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:04:20,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:20,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:20,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:20,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:04:20,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:20,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:04:20,116 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 01:04:20,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 01:04:20,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:20,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 01:04:20,140 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 01:04:20,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:04:20,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:20,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:20,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:04:20,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:04:20,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784575888] [2021-08-13 01:04:20,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784575888] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:04:20,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:04:20,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:04:20,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331048091] [2021-08-13 01:04:20,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:04:20,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:04:20,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:04:20,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:04:20,153 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 82 [2021-08-13 01:04:20,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 380 transitions, 2861 flow. Second operand has 7 states, 7 states have (on average 69.14285714285714) internal successors, (484), 7 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:20,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:04:20,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 82 [2021-08-13 01:04:20,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:04:20,595 INFO L129 PetriNetUnfolder]: 699/1964 cut-off events. [2021-08-13 01:04:20,595 INFO L130 PetriNetUnfolder]: For 427/1254 co-relation queries the response was YES. [2021-08-13 01:04:20,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5464 conditions, 1964 events. 699/1964 cut-off events. For 427/1254 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 17749 event pairs, 0 based on Foata normal form. 189/2002 useless extension candidates. Maximal degree in co-relation 5413. Up to 542 conditions per place. [2021-08-13 01:04:20,607 INFO L132 encePairwiseOnDemand]: 72/82 looper letters, 22 selfloop transitions, 36 changer transitions 124/250 dead transitions. [2021-08-13 01:04:20,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 250 transitions, 1687 flow [2021-08-13 01:04:20,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 01:04:20,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 01:04:20,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 941 transitions. [2021-08-13 01:04:20,610 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8827392120075047 [2021-08-13 01:04:20,610 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 941 transitions. [2021-08-13 01:04:20,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 941 transitions. [2021-08-13 01:04:20,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:04:20,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 941 transitions. [2021-08-13 01:04:20,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.38461538461539) internal successors, (941), 13 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:20,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:20,615 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:20,615 INFO L348 CegarLoopForPetriNet]: 76 programPoint places, 60 predicate places. [2021-08-13 01:04:20,615 INFO L482 AbstractCegarLoop]: Abstraction has has 136 places, 250 transitions, 1687 flow [2021-08-13 01:04:20,615 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 69.14285714285714) internal successors, (484), 7 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:20,615 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:04:20,615 INFO L266 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, 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, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 01:04:20,615 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 01:04:20,616 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:04:20,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:04:20,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1712367069, now seen corresponding path program 1 times [2021-08-13 01:04:20,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:04:20,616 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190741448] [2021-08-13 01:04:20,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:04:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:04:20,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:20,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:20,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:20,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:04:20,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:20,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:04:20,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:20,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:04:20,666 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 01:04:20,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 01:04:20,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:20,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 01:04:20,694 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 01:04:20,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:04:20,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:20,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:20,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:04:20,707 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:04:20,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190741448] [2021-08-13 01:04:20,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190741448] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:04:20,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:04:20,708 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 01:04:20,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569253120] [2021-08-13 01:04:20,708 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 01:04:20,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:04:20,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 01:04:20,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 01:04:20,709 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 82 [2021-08-13 01:04:20,710 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 250 transitions, 1687 flow. Second operand has 8 states, 8 states have (on average 69.125) internal successors, (553), 8 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:20,710 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:04:20,710 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 82 [2021-08-13 01:04:20,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:04:21,191 INFO L129 PetriNetUnfolder]: 630/1731 cut-off events. [2021-08-13 01:04:21,192 INFO L130 PetriNetUnfolder]: For 496/1705 co-relation queries the response was YES. [2021-08-13 01:04:21,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5714 conditions, 1731 events. 630/1731 cut-off events. For 496/1705 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 15815 event pairs, 0 based on Foata normal form. 230/1828 useless extension candidates. Maximal degree in co-relation 5660. Up to 503 conditions per place. [2021-08-13 01:04:21,204 INFO L132 encePairwiseOnDemand]: 72/82 looper letters, 19 selfloop transitions, 40 changer transitions 81/202 dead transitions. [2021-08-13 01:04:21,204 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 202 transitions, 1413 flow [2021-08-13 01:04:21,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 01:04:21,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 01:04:21,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1144 transitions. [2021-08-13 01:04:21,207 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8719512195121951 [2021-08-13 01:04:21,207 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1144 transitions. [2021-08-13 01:04:21,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1144 transitions. [2021-08-13 01:04:21,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:04:21,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1144 transitions. [2021-08-13 01:04:21,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 71.5) internal successors, (1144), 16 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:21,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 82.0) internal successors, (1394), 17 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:21,213 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 82.0) internal successors, (1394), 17 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:21,213 INFO L348 CegarLoopForPetriNet]: 76 programPoint places, 57 predicate places. [2021-08-13 01:04:21,213 INFO L482 AbstractCegarLoop]: Abstraction has has 133 places, 202 transitions, 1413 flow [2021-08-13 01:04:21,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 69.125) internal successors, (553), 8 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:21,214 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:04:21,214 INFO L266 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 01:04:21,215 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 01:04:21,215 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:04:21,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:04:21,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1918740218, now seen corresponding path program 1 times [2021-08-13 01:04:21,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:04:21,216 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355314130] [2021-08-13 01:04:21,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:04:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:04:21,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:21,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:21,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:21,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:04:21,302 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 01:04:21,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 01:04:21,313 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:04:21,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:04:21,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:21,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:04:21,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:21,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:04:21,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:21,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:04:21,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:04:21,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355314130] [2021-08-13 01:04:21,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355314130] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:04:21,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:04:21,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:04:21,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677708906] [2021-08-13 01:04:21,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:04:21,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:04:21,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:04:21,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:04:21,359 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 82 [2021-08-13 01:04:21,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 202 transitions, 1413 flow. Second operand has 7 states, 7 states have (on average 66.85714285714286) internal successors, (468), 7 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:21,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:04:21,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 82 [2021-08-13 01:04:21,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:04:21,659 INFO L129 PetriNetUnfolder]: 823/2170 cut-off events. [2021-08-13 01:04:21,659 INFO L130 PetriNetUnfolder]: For 698/1228 co-relation queries the response was YES. [2021-08-13 01:04:21,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7313 conditions, 2170 events. 823/2170 cut-off events. For 698/1228 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 20697 event pairs, 0 based on Foata normal form. 9/2022 useless extension candidates. Maximal degree in co-relation 7254. Up to 660 conditions per place. [2021-08-13 01:04:21,671 INFO L132 encePairwiseOnDemand]: 74/82 looper letters, 9 selfloop transitions, 4 changer transitions 139/210 dead transitions. [2021-08-13 01:04:21,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 210 transitions, 1607 flow [2021-08-13 01:04:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 01:04:21,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 01:04:21,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 477 transitions. [2021-08-13 01:04:21,673 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8310104529616724 [2021-08-13 01:04:21,673 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 477 transitions. [2021-08-13 01:04:21,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 477 transitions. [2021-08-13 01:04:21,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:04:21,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 477 transitions. [2021-08-13 01:04:21,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:21,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 82.0) internal successors, (656), 8 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:21,677 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 82.0) internal successors, (656), 8 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:21,677 INFO L348 CegarLoopForPetriNet]: 76 programPoint places, 63 predicate places. [2021-08-13 01:04:21,677 INFO L482 AbstractCegarLoop]: Abstraction has has 139 places, 210 transitions, 1607 flow [2021-08-13 01:04:21,677 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 66.85714285714286) internal successors, (468), 7 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:21,677 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:04:21,677 INFO L266 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 01:04:21,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 01:04:21,678 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:04:21,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:04:21,678 INFO L82 PathProgramCache]: Analyzing trace with hash 133527576, now seen corresponding path program 2 times [2021-08-13 01:04:21,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:04:21,680 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490517258] [2021-08-13 01:04:21,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:04:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:04:21,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:21,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:21,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:21,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:04:21,722 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 01:04:21,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 01:04:21,731 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:04:21,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:04:21,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:21,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:04:21,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:21,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:04:21,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:04:21,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:04:21,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:04:21,806 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:04:21,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490517258] [2021-08-13 01:04:21,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490517258] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:04:21,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:04:21,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:04:21,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696003014] [2021-08-13 01:04:21,809 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:04:21,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:04:21,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:04:21,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:04:21,811 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 82 [2021-08-13 01:04:21,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 210 transitions, 1607 flow. Second operand has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:21,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:04:21,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 82 [2021-08-13 01:04:21,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:04:22,128 INFO L129 PetriNetUnfolder]: 1062/2753 cut-off events. [2021-08-13 01:04:22,128 INFO L130 PetriNetUnfolder]: For 922/1637 co-relation queries the response was YES. [2021-08-13 01:04:22,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9394 conditions, 2753 events. 1062/2753 cut-off events. For 922/1637 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 27227 event pairs, 0 based on Foata normal form. 18/2554 useless extension candidates. Maximal degree in co-relation 9329. Up to 855 conditions per place. [2021-08-13 01:04:22,188 INFO L132 encePairwiseOnDemand]: 72/82 looper letters, 0 selfloop transitions, 0 changer transitions 219/219 dead transitions. [2021-08-13 01:04:22,191 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 219 transitions, 1855 flow [2021-08-13 01:04:22,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 01:04:22,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 01:04:22,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 535 transitions. [2021-08-13 01:04:22,194 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8155487804878049 [2021-08-13 01:04:22,195 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 535 transitions. [2021-08-13 01:04:22,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 535 transitions. [2021-08-13 01:04:22,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:04:22,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 535 transitions. [2021-08-13 01:04:22,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 66.875) internal successors, (535), 8 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:22,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 82.0) internal successors, (738), 9 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:22,199 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 82.0) internal successors, (738), 9 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:22,199 INFO L348 CegarLoopForPetriNet]: 76 programPoint places, 68 predicate places. [2021-08-13 01:04:22,199 INFO L482 AbstractCegarLoop]: Abstraction has has 144 places, 219 transitions, 1855 flow [2021-08-13 01:04:22,200 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:04:22,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown