/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:37:59,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:37:59,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:37:59,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:37:59,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:37:59,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:37:59,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:37:59,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:37:59,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:37:59,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:37:59,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:37:59,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:37:59,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:37:59,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:37:59,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:37:59,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:37:59,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:37:59,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:37:59,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:37:59,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:37:59,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:37:59,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:37:59,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:37:59,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:37:59,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-26 10:37:59,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-26 10:37:59,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-26 10:37:59,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-26 10:37:59,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-26 10:37:59,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-26 10:37:59,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 10:37:59,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 10:37:59,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 10:37:59,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 10:37:59,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 10:37:59,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 10:37:59,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 10:37:59,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 10:37:59,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:37:59,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:37:59,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:37:59,303 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:37:59,343 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:37:59,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:37:59,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:37:59,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:37:59,346 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:37:59,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:37:59,347 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:37:59,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:37:59,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:37:59,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:37:59,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:37:59,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:37:59,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:37:59,348 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:37:59,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:37:59,348 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:37:59,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:37:59,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:37:59,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:37:59,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:37:59,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:37:59,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:37:59,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:37:59,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:37:59,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:37:59,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:37:59,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:37:59,350 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:37:59,350 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:37:59,350 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:37:59,350 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:37:59,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:37:59,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:37:59,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:37:59,687 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:37:59,688 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:37:59,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2021-03-26 10:37:59,743 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98c94b58/65c8efbe7566482b8da8efa2ed0edaa1/FLAGcaebe7f69 [2021-03-26 10:38:00,225 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:38:00,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2021-03-26 10:38:00,240 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98c94b58/65c8efbe7566482b8da8efa2ed0edaa1/FLAGcaebe7f69 [2021-03-26 10:38:00,722 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98c94b58/65c8efbe7566482b8da8efa2ed0edaa1 [2021-03-26 10:38:00,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:38:00,728 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:38:00,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:38:00,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:38:00,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:38:00,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:38:00" (1/1) ... [2021-03-26 10:38:00,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f29b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:38:00, skipping insertion in model container [2021-03-26 10:38:00,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:38:00" (1/1) ... [2021-03-26 10:38:00,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:38:00,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:38:00,908 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i[949,962] [2021-03-26 10:38:01,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:38:01,128 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:38:01,138 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i[949,962] [2021-03-26 10:38:01,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:38:01,246 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:38:01,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:38:01 WrapperNode [2021-03-26 10:38:01,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:38:01,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:38:01,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:38:01,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:38:01,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:38:01" (1/1) ... [2021-03-26 10:38:01,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:38:01" (1/1) ... [2021-03-26 10:38:01,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:38:01,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:38:01,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:38:01,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:38:01,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:38:01" (1/1) ... [2021-03-26 10:38:01,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:38:01" (1/1) ... [2021-03-26 10:38:01,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:38:01" (1/1) ... [2021-03-26 10:38:01,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:38:01" (1/1) ... [2021-03-26 10:38:01,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:38:01" (1/1) ... [2021-03-26 10:38:01,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:38:01" (1/1) ... [2021-03-26 10:38:01,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:38:01" (1/1) ... [2021-03-26 10:38:01,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:38:01,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:38:01,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:38:01,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:38:01,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:38:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:38:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:38:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:38:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:38:01,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:38:01,421 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:38:01,421 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:38:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:38:01,422 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:38:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:38:01,423 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:38:01,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:38:01,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:38:01,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:38:01,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:38:01,424 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:38:01,726 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:38:01,727 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:38:01,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:38:01 BoogieIcfgContainer [2021-03-26 10:38:01,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:38:01,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:38:01,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:38:01,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:38:01,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:38:00" (1/3) ... [2021-03-26 10:38:01,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe15de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:38:01, skipping insertion in model container [2021-03-26 10:38:01,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:38:01" (2/3) ... [2021-03-26 10:38:01,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe15de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:38:01, skipping insertion in model container [2021-03-26 10:38:01,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:38:01" (3/3) ... [2021-03-26 10:38:01,735 INFO L111 eAbstractionObserver]: Analyzing ICFG safe023_tso.opt.i [2021-03-26 10:38:01,739 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:38:01,743 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:38:01,743 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:38:01,765 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,766 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,766 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,766 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,766 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,767 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,767 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,768 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,768 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,768 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,768 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,769 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,769 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,769 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,769 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,769 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,769 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,770 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,770 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,770 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,770 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,770 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,770 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,771 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,771 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,774 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,774 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,778 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,778 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,781 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:38:01,782 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:38:01,797 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 10:38:01,814 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:38:01,815 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:38:01,815 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:38:01,815 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:38:01,815 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:38:01,815 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:38:01,815 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:38:01,815 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:38:01,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 10:38:01,856 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-26 10:38:01,857 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:38:01,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 10:38:01,860 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 10:38:01,864 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-26 10:38:01,865 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:38:01,877 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 10:38:01,880 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 10:38:01,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-26 10:38:01,896 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-26 10:38:01,896 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:38:01,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 10:38:01,899 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 10:38:03,636 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-03-26 10:38:03,705 INFO L154 LiptonReduction]: Checked pairs total: 1010 [2021-03-26 10:38:03,706 INFO L156 LiptonReduction]: Total number of compositions: 38 [2021-03-26 10:38:03,708 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1844 [2021-03-26 10:38:03,723 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 10:38:03,723 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:38:03,724 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:38:03,724 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:38:03,725 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:38:03,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:38:03,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1013680624, now seen corresponding path program 1 times [2021-03-26 10:38:03,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:38:03,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590641036] [2021-03-26 10:38:03,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:38:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:38:03,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:38:03,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:38:03,994 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:38:03,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:38:04,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:38:04,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590641036] [2021-03-26 10:38:04,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:38:04,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:38:04,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433689318] [2021-03-26 10:38:04,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:38:04,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:38:04,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:38:04,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:38:04,041 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 113 [2021-03-26 10:38:04,045 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:04,045 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:38:04,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 113 [2021-03-26 10:38:04,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:38:04,115 INFO L129 PetriNetUnfolder]: 46/141 cut-off events. [2021-03-26 10:38:04,116 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:38:04,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 141 events. 46/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 585 event pairs, 14 based on Foata normal form. 5/133 useless extension candidates. Maximal degree in co-relation 236. Up to 54 conditions per place. [2021-03-26 10:38:04,120 INFO L132 encePairwiseOnDemand]: 106/113 looper letters, 7 selfloop transitions, 6 changer transitions 0/27 dead transitions. [2021-03-26 10:38:04,120 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 89 flow [2021-03-26 10:38:04,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:38:04,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:38:04,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2021-03-26 10:38:04,136 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8112094395280236 [2021-03-26 10:38:04,137 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2021-03-26 10:38:04,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2021-03-26 10:38:04,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:38:04,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2021-03-26 10:38:04,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:04,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 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) [2021-03-26 10:38:04,162 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 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) [2021-03-26 10:38:04,164 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 53 flow. Second operand 3 states and 275 transitions. [2021-03-26 10:38:04,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 89 flow [2021-03-26 10:38:04,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 86 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:38:04,169 INFO L241 Difference]: Finished difference. Result has 33 places, 27 transitions, 96 flow [2021-03-26 10:38:04,171 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=33, PETRI_TRANSITIONS=27} [2021-03-26 10:38:04,172 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2021-03-26 10:38:04,172 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:38:04,172 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 27 transitions, 96 flow [2021-03-26 10:38:04,172 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 27 transitions, 96 flow [2021-03-26 10:38:04,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 27 transitions, 96 flow [2021-03-26 10:38:04,187 INFO L129 PetriNetUnfolder]: 46/153 cut-off events. [2021-03-26 10:38:04,188 INFO L130 PetriNetUnfolder]: For 24/28 co-relation queries the response was YES. [2021-03-26 10:38:04,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 153 events. 46/153 cut-off events. For 24/28 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 706 event pairs, 14 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 296. Up to 53 conditions per place. [2021-03-26 10:38:04,190 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-26 10:38:04,718 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:38:04,961 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:38:05,077 INFO L154 LiptonReduction]: Checked pairs total: 273 [2021-03-26 10:38:05,078 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 10:38:05,078 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 906 [2021-03-26 10:38:05,080 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 86 flow [2021-03-26 10:38:05,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,080 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:38:05,081 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:38:05,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:38:05,081 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:38:05,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:38:05,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1359329172, now seen corresponding path program 1 times [2021-03-26 10:38:05,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:38:05,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334753985] [2021-03-26 10:38:05,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:38:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:38:05,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:38:05,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:38:05,156 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:38:05,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:38:05,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:38:05,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334753985] [2021-03-26 10:38:05,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:38:05,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:38:05,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105687742] [2021-03-26 10:38:05,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:38:05,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:38:05,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:38:05,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:38:05,171 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 118 [2021-03-26 10:38:05,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:38:05,172 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 118 [2021-03-26 10:38:05,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:38:05,196 INFO L129 PetriNetUnfolder]: 23/86 cut-off events. [2021-03-26 10:38:05,197 INFO L130 PetriNetUnfolder]: For 32/104 co-relation queries the response was YES. [2021-03-26 10:38:05,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 86 events. 23/86 cut-off events. For 32/104 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 317 event pairs, 4 based on Foata normal form. 8/90 useless extension candidates. Maximal degree in co-relation 228. Up to 30 conditions per place. [2021-03-26 10:38:05,198 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 10 selfloop transitions, 6 changer transitions 2/28 dead transitions. [2021-03-26 10:38:05,198 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 28 transitions, 152 flow [2021-03-26 10:38:05,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:38:05,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:38:05,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2021-03-26 10:38:05,200 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7923728813559322 [2021-03-26 10:38:05,200 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 374 transitions. [2021-03-26 10:38:05,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 374 transitions. [2021-03-26 10:38:05,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:38:05,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 374 transitions. [2021-03-26 10:38:05,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,203 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,203 INFO L185 Difference]: Start difference. First operand has 28 places, 22 transitions, 86 flow. Second operand 4 states and 374 transitions. [2021-03-26 10:38:05,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 28 transitions, 152 flow [2021-03-26 10:38:05,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 134 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:38:05,205 INFO L241 Difference]: Finished difference. Result has 32 places, 25 transitions, 118 flow [2021-03-26 10:38:05,205 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2021-03-26 10:38:05,206 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2021-03-26 10:38:05,206 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:38:05,206 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 25 transitions, 118 flow [2021-03-26 10:38:05,206 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 25 transitions, 118 flow [2021-03-26 10:38:05,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 25 transitions, 118 flow [2021-03-26 10:38:05,213 INFO L129 PetriNetUnfolder]: 23/86 cut-off events. [2021-03-26 10:38:05,213 INFO L130 PetriNetUnfolder]: For 44/52 co-relation queries the response was YES. [2021-03-26 10:38:05,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 86 events. 23/86 cut-off events. For 44/52 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 336 event pairs, 3 based on Foata normal form. 1/85 useless extension candidates. Maximal degree in co-relation 199. Up to 30 conditions per place. [2021-03-26 10:38:05,215 INFO L142 LiptonReduction]: Number of co-enabled transitions 164 [2021-03-26 10:38:05,229 INFO L154 LiptonReduction]: Checked pairs total: 121 [2021-03-26 10:38:05,229 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:38:05,229 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 10:38:05,230 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 118 flow [2021-03-26 10:38:05,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,231 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:38:05,231 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:38:05,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:38:05,231 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:38:05,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:38:05,231 INFO L82 PathProgramCache]: Analyzing trace with hash -292561667, now seen corresponding path program 1 times [2021-03-26 10:38:05,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:38:05,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560577927] [2021-03-26 10:38:05,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:38:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:38:05,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:38:05,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:38:05,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:38:05,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560577927] [2021-03-26 10:38:05,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:38:05,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 10:38:05,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755311804] [2021-03-26 10:38:05,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:38:05,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:38:05,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:38:05,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:38:05,268 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 118 [2021-03-26 10:38:05,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:38:05,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 118 [2021-03-26 10:38:05,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:38:05,279 INFO L129 PetriNetUnfolder]: 22/82 cut-off events. [2021-03-26 10:38:05,279 INFO L130 PetriNetUnfolder]: For 90/116 co-relation queries the response was YES. [2021-03-26 10:38:05,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 82 events. 22/82 cut-off events. For 90/116 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 296 event pairs, 2 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 203. Up to 30 conditions per place. [2021-03-26 10:38:05,280 INFO L132 encePairwiseOnDemand]: 115/118 looper letters, 1 selfloop transitions, 4 changer transitions 0/25 dead transitions. [2021-03-26 10:38:05,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 128 flow [2021-03-26 10:38:05,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:38:05,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:38:05,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2021-03-26 10:38:05,282 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8757062146892656 [2021-03-26 10:38:05,282 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2021-03-26 10:38:05,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2021-03-26 10:38:05,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:38:05,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2021-03-26 10:38:05,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,285 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,285 INFO L185 Difference]: Start difference. First operand has 32 places, 25 transitions, 118 flow. Second operand 3 states and 310 transitions. [2021-03-26 10:38:05,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 128 flow [2021-03-26 10:38:05,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 25 transitions, 125 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:38:05,287 INFO L241 Difference]: Finished difference. Result has 34 places, 25 transitions, 129 flow [2021-03-26 10:38:05,287 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2021-03-26 10:38:05,287 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2021-03-26 10:38:05,287 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:38:05,288 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 25 transitions, 129 flow [2021-03-26 10:38:05,288 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 25 transitions, 129 flow [2021-03-26 10:38:05,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 25 transitions, 129 flow [2021-03-26 10:38:05,295 INFO L129 PetriNetUnfolder]: 22/89 cut-off events. [2021-03-26 10:38:05,295 INFO L130 PetriNetUnfolder]: For 53/62 co-relation queries the response was YES. [2021-03-26 10:38:05,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 89 events. 22/89 cut-off events. For 53/62 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 383 event pairs, 4 based on Foata normal form. 1/88 useless extension candidates. Maximal degree in co-relation 218. Up to 30 conditions per place. [2021-03-26 10:38:05,299 INFO L142 LiptonReduction]: Number of co-enabled transitions 164 [2021-03-26 10:38:05,302 INFO L154 LiptonReduction]: Checked pairs total: 74 [2021-03-26 10:38:05,303 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:38:05,303 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-26 10:38:05,307 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 129 flow [2021-03-26 10:38:05,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,307 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:38:05,307 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:38:05,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:38:05,307 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:38:05,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:38:05,308 INFO L82 PathProgramCache]: Analyzing trace with hash -262165144, now seen corresponding path program 1 times [2021-03-26 10:38:05,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:38:05,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826734103] [2021-03-26 10:38:05,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:38:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:38:05,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:38:05,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:38:05,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:38:05,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:38:05,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:38:05,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826734103] [2021-03-26 10:38:05,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:38:05,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:38:05,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497613439] [2021-03-26 10:38:05,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:38:05,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:38:05,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:38:05,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:38:05,360 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 118 [2021-03-26 10:38:05,361 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,361 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:38:05,361 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 118 [2021-03-26 10:38:05,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:38:05,386 INFO L129 PetriNetUnfolder]: 20/87 cut-off events. [2021-03-26 10:38:05,386 INFO L130 PetriNetUnfolder]: For 99/164 co-relation queries the response was YES. [2021-03-26 10:38:05,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 87 events. 20/87 cut-off events. For 99/164 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 360 event pairs, 0 based on Foata normal form. 5/89 useless extension candidates. Maximal degree in co-relation 269. Up to 34 conditions per place. [2021-03-26 10:38:05,387 INFO L132 encePairwiseOnDemand]: 115/118 looper letters, 10 selfloop transitions, 5 changer transitions 4/32 dead transitions. [2021-03-26 10:38:05,387 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 209 flow [2021-03-26 10:38:05,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:38:05,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:38:05,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2021-03-26 10:38:05,389 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8757062146892656 [2021-03-26 10:38:05,389 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2021-03-26 10:38:05,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2021-03-26 10:38:05,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:38:05,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2021-03-26 10:38:05,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,392 INFO L185 Difference]: Start difference. First operand has 34 places, 25 transitions, 129 flow. Second operand 3 states and 310 transitions. [2021-03-26 10:38:05,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 209 flow [2021-03-26 10:38:05,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 201 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:38:05,396 INFO L241 Difference]: Finished difference. Result has 35 places, 25 transitions, 138 flow [2021-03-26 10:38:05,397 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=35, PETRI_TRANSITIONS=25} [2021-03-26 10:38:05,397 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2021-03-26 10:38:05,397 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:38:05,397 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 25 transitions, 138 flow [2021-03-26 10:38:05,397 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 25 transitions, 138 flow [2021-03-26 10:38:05,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 25 transitions, 138 flow [2021-03-26 10:38:05,402 INFO L129 PetriNetUnfolder]: 13/64 cut-off events. [2021-03-26 10:38:05,402 INFO L130 PetriNetUnfolder]: For 52/60 co-relation queries the response was YES. [2021-03-26 10:38:05,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 64 events. 13/64 cut-off events. For 52/60 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 236 event pairs, 1 based on Foata normal form. 1/64 useless extension candidates. Maximal degree in co-relation 173. Up to 21 conditions per place. [2021-03-26 10:38:05,404 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-26 10:38:05,407 INFO L154 LiptonReduction]: Checked pairs total: 106 [2021-03-26 10:38:05,407 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:38:05,407 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 10:38:05,408 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 138 flow [2021-03-26 10:38:05,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,409 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:38:05,409 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:38:05,409 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:38:05,409 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:38:05,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:38:05,410 INFO L82 PathProgramCache]: Analyzing trace with hash -479477582, now seen corresponding path program 1 times [2021-03-26 10:38:05,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:38:05,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435443147] [2021-03-26 10:38:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:38:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:38:05,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:38:05,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:38:05,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:38:05,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:38:05,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:38:05,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435443147] [2021-03-26 10:38:05,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:38:05,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:38:05,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295656928] [2021-03-26 10:38:05,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:38:05,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:38:05,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:38:05,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:38:05,468 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 118 [2021-03-26 10:38:05,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:38:05,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 118 [2021-03-26 10:38:05,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:38:05,489 INFO L129 PetriNetUnfolder]: 16/74 cut-off events. [2021-03-26 10:38:05,489 INFO L130 PetriNetUnfolder]: For 142/174 co-relation queries the response was YES. [2021-03-26 10:38:05,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 74 events. 16/74 cut-off events. For 142/174 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 291 event pairs, 1 based on Foata normal form. 8/81 useless extension candidates. Maximal degree in co-relation 215. Up to 26 conditions per place. [2021-03-26 10:38:05,490 INFO L132 encePairwiseOnDemand]: 114/118 looper letters, 1 selfloop transitions, 4 changer transitions 7/27 dead transitions. [2021-03-26 10:38:05,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 27 transitions, 168 flow [2021-03-26 10:38:05,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:38:05,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:38:05,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 399 transitions. [2021-03-26 10:38:05,491 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8453389830508474 [2021-03-26 10:38:05,492 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 399 transitions. [2021-03-26 10:38:05,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 399 transitions. [2021-03-26 10:38:05,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:38:05,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 399 transitions. [2021-03-26 10:38:05,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,494 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,494 INFO L185 Difference]: Start difference. First operand has 35 places, 25 transitions, 138 flow. Second operand 4 states and 399 transitions. [2021-03-26 10:38:05,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 27 transitions, 168 flow [2021-03-26 10:38:05,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 27 transitions, 163 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:38:05,496 INFO L241 Difference]: Finished difference. Result has 39 places, 20 transitions, 121 flow [2021-03-26 10:38:05,496 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=121, PETRI_PLACES=39, PETRI_TRANSITIONS=20} [2021-03-26 10:38:05,496 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 7 predicate places. [2021-03-26 10:38:05,496 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:38:05,497 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 20 transitions, 121 flow [2021-03-26 10:38:05,497 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 20 transitions, 121 flow [2021-03-26 10:38:05,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 20 transitions, 121 flow [2021-03-26 10:38:05,500 INFO L129 PetriNetUnfolder]: 1/28 cut-off events. [2021-03-26 10:38:05,500 INFO L130 PetriNetUnfolder]: For 27/28 co-relation queries the response was YES. [2021-03-26 10:38:05,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 28 events. 1/28 cut-off events. For 27/28 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 78. Up to 7 conditions per place. [2021-03-26 10:38:05,501 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-26 10:38:05,675 INFO L154 LiptonReduction]: Checked pairs total: 132 [2021-03-26 10:38:05,675 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 10:38:05,676 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 180 [2021-03-26 10:38:05,676 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 18 transitions, 127 flow [2021-03-26 10:38:05,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,677 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:38:05,677 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:38:05,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:38:05,677 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:38:05,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:38:05,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1980600870, now seen corresponding path program 1 times [2021-03-26 10:38:05,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:38:05,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419491750] [2021-03-26 10:38:05,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:38:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:38:05,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:38:05,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:38:05,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:38:05,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:38:05,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:38:05,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419491750] [2021-03-26 10:38:05,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:38:05,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:38:05,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706893887] [2021-03-26 10:38:05,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:38:05,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:38:05,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:38:05,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:38:05,716 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 123 [2021-03-26 10:38:05,716 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 18 transitions, 127 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,717 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:38:05,717 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 123 [2021-03-26 10:38:05,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:38:05,739 INFO L129 PetriNetUnfolder]: 26/64 cut-off events. [2021-03-26 10:38:05,740 INFO L130 PetriNetUnfolder]: For 208/238 co-relation queries the response was YES. [2021-03-26 10:38:05,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 64 events. 26/64 cut-off events. For 208/238 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 176 event pairs, 8 based on Foata normal form. 5/67 useless extension candidates. Maximal degree in co-relation 231. Up to 50 conditions per place. [2021-03-26 10:38:05,740 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 4 selfloop transitions, 3 changer transitions 5/22 dead transitions. [2021-03-26 10:38:05,740 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 22 transitions, 171 flow [2021-03-26 10:38:05,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:38:05,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:38:05,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2021-03-26 10:38:05,742 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8265582655826558 [2021-03-26 10:38:05,742 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2021-03-26 10:38:05,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2021-03-26 10:38:05,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:38:05,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2021-03-26 10:38:05,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,744 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,744 INFO L185 Difference]: Start difference. First operand has 37 places, 18 transitions, 127 flow. Second operand 3 states and 305 transitions. [2021-03-26 10:38:05,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 22 transitions, 171 flow [2021-03-26 10:38:05,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 121 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-03-26 10:38:05,746 INFO L241 Difference]: Finished difference. Result has 32 places, 17 transitions, 83 flow [2021-03-26 10:38:05,746 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=32, PETRI_TRANSITIONS=17} [2021-03-26 10:38:05,746 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2021-03-26 10:38:05,746 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:38:05,747 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 17 transitions, 83 flow [2021-03-26 10:38:05,747 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 17 transitions, 83 flow [2021-03-26 10:38:05,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 17 transitions, 83 flow [2021-03-26 10:38:05,750 INFO L129 PetriNetUnfolder]: 12/40 cut-off events. [2021-03-26 10:38:05,751 INFO L130 PetriNetUnfolder]: For 41/44 co-relation queries the response was YES. [2021-03-26 10:38:05,751 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 40 events. 12/40 cut-off events. For 41/44 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 88 event pairs, 7 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 95. Up to 28 conditions per place. [2021-03-26 10:38:05,751 INFO L142 LiptonReduction]: Number of co-enabled transitions 50 [2021-03-26 10:38:05,803 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-26 10:38:05,803 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:38:05,803 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-26 10:38:05,804 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 17 transitions, 88 flow [2021-03-26 10:38:05,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,804 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:38:05,804 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:38:05,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:38:05,804 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:38:05,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:38:05,805 INFO L82 PathProgramCache]: Analyzing trace with hash -336226306, now seen corresponding path program 1 times [2021-03-26 10:38:05,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:38:05,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947319186] [2021-03-26 10:38:05,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:38:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:38:05,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:38:05,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:38:05,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:38:05,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:38:05,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:38:05,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:38:05,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:38:05,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947319186] [2021-03-26 10:38:05,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:38:05,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:38:05,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719153003] [2021-03-26 10:38:05,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:38:05,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:38:05,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:38:05,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:38:05,860 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 124 [2021-03-26 10:38:05,861 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 17 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,863 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:38:05,863 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 124 [2021-03-26 10:38:05,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:38:05,882 INFO L129 PetriNetUnfolder]: 10/34 cut-off events. [2021-03-26 10:38:05,882 INFO L130 PetriNetUnfolder]: For 39/41 co-relation queries the response was YES. [2021-03-26 10:38:05,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 34 events. 10/34 cut-off events. For 39/41 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 76 event pairs, 6 based on Foata normal form. 2/34 useless extension candidates. Maximal degree in co-relation 94. Up to 23 conditions per place. [2021-03-26 10:38:05,883 INFO L132 encePairwiseOnDemand]: 120/124 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2021-03-26 10:38:05,883 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 16 transitions, 94 flow [2021-03-26 10:38:05,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:38:05,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:38:05,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 387 transitions. [2021-03-26 10:38:05,885 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.780241935483871 [2021-03-26 10:38:05,885 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 387 transitions. [2021-03-26 10:38:05,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 387 transitions. [2021-03-26 10:38:05,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:38:05,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 387 transitions. [2021-03-26 10:38:05,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,887 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,887 INFO L185 Difference]: Start difference. First operand has 32 places, 17 transitions, 88 flow. Second operand 4 states and 387 transitions. [2021-03-26 10:38:05,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 16 transitions, 94 flow [2021-03-26 10:38:05,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 16 transitions, 79 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-26 10:38:05,888 INFO L241 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2021-03-26 10:38:05,888 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2021-03-26 10:38:05,888 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2021-03-26 10:38:05,889 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:38:05,889 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 10:38:05,889 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 10:38:05,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:38:05,889 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:38:05,889 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:38:05,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 10:38:05,889 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:38:05,890 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:38:05,890 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:38:05,890 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 10:38:05,891 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:38:05,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:38:05,891 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:38:05,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:38:05 BasicIcfg [2021-03-26 10:38:05,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:38:05,895 INFO L168 Benchmark]: Toolchain (without parser) took 5166.88 ms. Allocated memory was 337.6 MB in the beginning and 429.9 MB in the end (delta: 92.3 MB). Free memory was 301.0 MB in the beginning and 252.1 MB in the end (delta: 48.8 MB). Peak memory consumption was 142.7 MB. Max. memory is 16.0 GB. [2021-03-26 10:38:05,895 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 337.6 MB. Free memory was 319.1 MB in the beginning and 319.1 MB in the end (delta: 65.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:38:05,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 519.49 ms. Allocated memory is still 337.6 MB. Free memory was 300.8 MB in the beginning and 299.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.0 GB. [2021-03-26 10:38:05,896 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.05 ms. Allocated memory is still 337.6 MB. Free memory was 299.8 MB in the beginning and 297.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:38:05,896 INFO L168 Benchmark]: Boogie Preprocessor took 30.09 ms. Allocated memory is still 337.6 MB. Free memory was 297.7 MB in the beginning and 296.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:38:05,896 INFO L168 Benchmark]: RCFGBuilder took 393.18 ms. Allocated memory is still 337.6 MB. Free memory was 296.6 MB in the beginning and 273.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:38:05,896 INFO L168 Benchmark]: TraceAbstraction took 4164.55 ms. Allocated memory was 337.6 MB in the beginning and 429.9 MB in the end (delta: 92.3 MB). Free memory was 273.5 MB in the beginning and 252.1 MB in the end (delta: 21.3 MB). Peak memory consumption was 114.5 MB. Max. memory is 16.0 GB. [2021-03-26 10:38:05,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 337.6 MB. Free memory was 319.1 MB in the beginning and 319.1 MB in the end (delta: 65.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 519.49 ms. Allocated memory is still 337.6 MB. Free memory was 300.8 MB in the beginning and 299.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.05 ms. Allocated memory is still 337.6 MB. Free memory was 299.8 MB in the beginning and 297.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.09 ms. Allocated memory is still 337.6 MB. Free memory was 297.7 MB in the beginning and 296.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 393.18 ms. Allocated memory is still 337.6 MB. Free memory was 296.6 MB in the beginning and 273.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4164.55 ms. Allocated memory was 337.6 MB in the beginning and 429.9 MB in the end (delta: 92.3 MB). Free memory was 273.5 MB in the beginning and 252.1 MB in the end (delta: 21.3 MB). Peak memory consumption was 114.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1826.1ms, 69 PlacesBefore, 32 PlacesAfterwards, 60 TransitionsBefore, 22 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 38 TotalNumberOfCompositions, 1010 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 707, positive: 671, positive conditional: 671, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 707, positive: 671, positive conditional: 0, positive unconditional: 671, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 707, positive: 671, positive conditional: 0, positive unconditional: 671, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 538, positive: 518, positive conditional: 0, positive unconditional: 518, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 538, positive: 511, positive conditional: 0, positive unconditional: 511, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 119, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 707, positive: 153, positive conditional: 0, positive unconditional: 153, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 538, unknown conditional: 0, unknown unconditional: 538] , Statistics on independence cache: Total cache size (in pairs): 538, Positive cache size: 518, Positive conditional cache size: 0, Positive unconditional cache size: 518, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 905.2ms, 33 PlacesBefore, 28 PlacesAfterwards, 27 TransitionsBefore, 22 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 273 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 125, positive: 109, positive conditional: 109, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 125, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 125, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 44, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 44, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 125, positive: 70, positive conditional: 0, positive unconditional: 70, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 44, unknown conditional: 0, unknown unconditional: 44] , Statistics on independence cache: Total cache size (in pairs): 582, Positive cache size: 557, Positive conditional cache size: 0, Positive unconditional cache size: 557, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.9ms, 32 PlacesBefore, 32 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 121 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 69, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 69, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 69, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 69, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 588, Positive cache size: 562, Positive conditional cache size: 0, Positive unconditional cache size: 562, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Eliminated conditions: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.8ms, 34 PlacesBefore, 34 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 74 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, positive: 41, positive conditional: 41, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 46, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 46, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 588, Positive cache size: 562, Positive conditional cache size: 0, Positive unconditional cache size: 562, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Eliminated conditions: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.3ms, 35 PlacesBefore, 35 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 106 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 72, positive: 64, positive conditional: 64, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 72, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 72, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 72, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 588, Positive cache size: 562, Positive conditional cache size: 0, Positive unconditional cache size: 562, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 178.6ms, 39 PlacesBefore, 37 PlacesAfterwards, 20 TransitionsBefore, 18 TransitionsAfterwards, 98 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 132 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 105, positive: 94, positive conditional: 94, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 105, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 105, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 105, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 599, Positive cache size: 572, Positive conditional cache size: 0, Positive unconditional cache size: 572, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Eliminated conditions: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.0ms, 32 PlacesBefore, 32 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 599, Positive cache size: 572, Positive conditional cache size: 0, Positive unconditional cache size: 572, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0ms, 30 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 599, Positive cache size: 572, Positive conditional cache size: 0, Positive unconditional cache size: 572, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Eliminated conditions: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4080.8ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 323.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1899.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 37 SDtfs, 12 SDslu, 5 SDs, 0 SdLazy, 42 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 50.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.0ms SsaConstructionTime, 163.9ms SatisfiabilityAnalysisTime, 273.4ms InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 386 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...