/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 19:48:19,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 19:48:19,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 19:48:19,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 19:48:19,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 19:48:19,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 19:48:19,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 19:48:19,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 19:48:19,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 19:48:19,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 19:48:19,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 19:48:19,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 19:48:19,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 19:48:19,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 19:48:19,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 19:48:19,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 19:48:19,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 19:48:19,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 19:48:19,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 19:48:19,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 19:48:19,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 19:48:19,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 19:48:19,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 19:48:19,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 19:48:19,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 19:48:19,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 19:48:19,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 19:48:19,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 19:48:19,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 19:48:19,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 19:48:19,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 19:48:19,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 19:48:19,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 19:48:19,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 19:48:19,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 19:48:19,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 19:48:19,445 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-03-24 19:48:19,465 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 19:48:19,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 19:48:19,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 19:48:19,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 19:48:19,466 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 19:48:19,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 19:48:19,467 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 19:48:19,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 19:48:19,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 19:48:19,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 19:48:19,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 19:48:19,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 19:48:19,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 19:48:19,468 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 19:48:19,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 19:48:19,468 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 19:48:19,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 19:48:19,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 19:48:19,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 19:48:19,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 19:48:19,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 19:48:19,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:48:19,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 19:48:19,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 19:48:19,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 19:48:19,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 19:48:19,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 19:48:19,471 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 19:48:19,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 19:48:19,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 19:48:19,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 19:48:19,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 19:48:19,776 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 19:48:19,780 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 19:48:19,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_power.opt.i [2021-03-24 19:48:19,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c588c57f/08e9f417f2dc48b5a55eb996a2e1b9e5/FLAGcc7f66a06 [2021-03-24 19:48:20,354 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 19:48:20,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_power.opt.i [2021-03-24 19:48:20,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c588c57f/08e9f417f2dc48b5a55eb996a2e1b9e5/FLAGcc7f66a06 [2021-03-24 19:48:20,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c588c57f/08e9f417f2dc48b5a55eb996a2e1b9e5 [2021-03-24 19:48:20,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 19:48:20,832 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 19:48:20,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 19:48:20,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 19:48:20,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 19:48:20,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:48:20" (1/1) ... [2021-03-24 19:48:20,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ceee96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:48:20, skipping insertion in model container [2021-03-24 19:48:20,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:48:20" (1/1) ... [2021-03-24 19:48:20,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 19:48:20,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 19:48:21,032 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/safe001_power.opt.i[951,964] [2021-03-24 19:48:21,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:48:21,266 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 19:48:21,275 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/safe001_power.opt.i[951,964] [2021-03-24 19:48:21,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:48:21,389 INFO L208 MainTranslator]: Completed translation [2021-03-24 19:48:21,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:48:21 WrapperNode [2021-03-24 19:48:21,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 19:48:21,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 19:48:21,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 19:48:21,395 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 19:48:21,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:48:21" (1/1) ... [2021-03-24 19:48:21,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:48:21" (1/1) ... [2021-03-24 19:48:21,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 19:48:21,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 19:48:21,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 19:48:21,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 19:48:21,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:48:21" (1/1) ... [2021-03-24 19:48:21,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:48:21" (1/1) ... [2021-03-24 19:48:21,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:48:21" (1/1) ... [2021-03-24 19:48:21,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:48:21" (1/1) ... [2021-03-24 19:48:21,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:48:21" (1/1) ... [2021-03-24 19:48:21,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:48:21" (1/1) ... [2021-03-24 19:48:21,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:48:21" (1/1) ... [2021-03-24 19:48:21,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 19:48:21,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 19:48:21,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 19:48:21,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 19:48:21,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:48:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:48:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 19:48:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 19:48:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 19:48:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 19:48:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 19:48:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 19:48:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 19:48:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 19:48:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-24 19:48:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-24 19:48:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 19:48:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 19:48:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 19:48:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 19:48:21,558 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 19:48:23,282 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 19:48:23,282 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-24 19:48:23,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:48:23 BoogieIcfgContainer [2021-03-24 19:48:23,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 19:48:23,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 19:48:23,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 19:48:23,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 19:48:23,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 07:48:20" (1/3) ... [2021-03-24 19:48:23,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bda7911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:48:23, skipping insertion in model container [2021-03-24 19:48:23,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:48:21" (2/3) ... [2021-03-24 19:48:23,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bda7911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:48:23, skipping insertion in model container [2021-03-24 19:48:23,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:48:23" (3/3) ... [2021-03-24 19:48:23,290 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_power.opt.i [2021-03-24 19:48:23,295 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 19:48:23,299 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-24 19:48:23,299 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 19:48:23,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,329 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,329 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,330 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,330 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,330 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,330 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,330 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,330 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,330 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,330 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,330 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,332 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,332 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,332 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,332 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,332 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,334 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,334 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,334 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,335 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,337 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,337 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,337 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,337 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,337 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,338 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,338 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,338 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,338 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,343 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,343 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,343 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,343 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,343 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,346 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,346 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,346 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,346 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,346 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,346 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,346 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,347 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,347 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,347 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,348 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,348 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,349 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,349 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:48:23,350 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 19:48:23,366 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-24 19:48:23,382 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 19:48:23,383 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 19:48:23,383 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 19:48:23,383 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 19:48:23,383 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 19:48:23,383 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 19:48:23,383 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 19:48:23,383 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 19:48:23,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 97 transitions, 209 flow [2021-03-24 19:48:23,422 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-03-24 19:48:23,422 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:48:23,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2021-03-24 19:48:23,425 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 97 transitions, 209 flow [2021-03-24 19:48:23,429 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 94 transitions, 197 flow [2021-03-24 19:48:23,430 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 19:48:23,440 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 94 transitions, 197 flow [2021-03-24 19:48:23,443 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 94 transitions, 197 flow [2021-03-24 19:48:23,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 197 flow [2021-03-24 19:48:23,460 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-03-24 19:48:23,460 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:48:23,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2021-03-24 19:48:23,463 INFO L142 LiptonReduction]: Number of co-enabled transitions 1686 [2021-03-24 19:48:25,311 WARN L205 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-03-24 19:48:25,615 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-24 19:48:26,989 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-03-24 19:48:27,611 WARN L205 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-24 19:48:27,772 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 19:48:28,169 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2021-03-24 19:48:28,330 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-24 19:48:29,406 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-24 19:48:29,699 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-24 19:48:30,345 WARN L205 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-24 19:48:30,975 WARN L205 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-24 19:48:31,123 INFO L154 LiptonReduction]: Checked pairs total: 2882 [2021-03-24 19:48:31,123 INFO L156 LiptonReduction]: Total number of compositions: 64 [2021-03-24 19:48:31,126 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7697 [2021-03-24 19:48:31,137 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-24 19:48:31,137 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:48:31,137 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:48:31,138 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:48:31,138 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:48:31,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:48:31,143 INFO L82 PathProgramCache]: Analyzing trace with hash 788348067, now seen corresponding path program 1 times [2021-03-24 19:48:31,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:48:31,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066057945] [2021-03-24 19:48:31,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:48:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:48:31,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:31,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:48:31,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:31,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:31,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:48:31,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066057945] [2021-03-24 19:48:31,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:48:31,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 19:48:31,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862413751] [2021-03-24 19:48:31,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 19:48:31,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:48:31,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 19:48:31,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 19:48:31,349 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 161 [2021-03-24 19:48:31,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:31,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:48:31,352 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 161 [2021-03-24 19:48:31,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:48:31,462 INFO L129 PetriNetUnfolder]: 69/198 cut-off events. [2021-03-24 19:48:31,462 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:48:31,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 198 events. 69/198 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 921 event pairs, 39 based on Foata normal form. 11/192 useless extension candidates. Maximal degree in co-relation 307. Up to 89 conditions per place. [2021-03-24 19:48:31,467 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 9 selfloop transitions, 2 changer transitions 5/41 dead transitions. [2021-03-24 19:48:31,467 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 41 transitions, 117 flow [2021-03-24 19:48:31,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 19:48:31,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 19:48:31,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 430 transitions. [2021-03-24 19:48:31,480 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8902691511387164 [2021-03-24 19:48:31,481 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 430 transitions. [2021-03-24 19:48:31,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 430 transitions. [2021-03-24 19:48:31,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:48:31,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 430 transitions. [2021-03-24 19:48:31,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:31,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:31,505 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:31,507 INFO L185 Difference]: Start difference. First operand has 48 places, 39 transitions, 87 flow. Second operand 3 states and 430 transitions. [2021-03-24 19:48:31,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 41 transitions, 117 flow [2021-03-24 19:48:31,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 114 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-24 19:48:31,511 INFO L241 Difference]: Finished difference. Result has 45 places, 32 transitions, 74 flow [2021-03-24 19:48:31,512 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=45, PETRI_TRANSITIONS=32} [2021-03-24 19:48:31,513 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2021-03-24 19:48:31,513 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 32 transitions, 74 flow [2021-03-24 19:48:31,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:31,513 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:48:31,514 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:48:31,514 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 19:48:31,514 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:48:31,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:48:31,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1851944499, now seen corresponding path program 1 times [2021-03-24 19:48:31,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:48:31,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260897658] [2021-03-24 19:48:31,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:48:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:48:31,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:31,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:48:31,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:31,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:31,698 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:48:31,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:48:31,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:48:31,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260897658] [2021-03-24 19:48:31,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:48:31,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:48:31,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361287199] [2021-03-24 19:48:31,703 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:48:31,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:48:31,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:48:31,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:48:31,706 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 161 [2021-03-24 19:48:31,707 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:31,707 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:48:31,707 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 161 [2021-03-24 19:48:31,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:48:31,730 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2021-03-24 19:48:31,730 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:48:31,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 37 events. 0/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 2/38 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-24 19:48:31,731 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 2 selfloop transitions, 2 changer transitions 3/34 dead transitions. [2021-03-24 19:48:31,731 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 34 transitions, 90 flow [2021-03-24 19:48:31,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:48:31,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:48:31,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 713 transitions. [2021-03-24 19:48:31,734 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8857142857142857 [2021-03-24 19:48:31,734 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 713 transitions. [2021-03-24 19:48:31,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 713 transitions. [2021-03-24 19:48:31,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:48:31,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 713 transitions. [2021-03-24 19:48:31,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:31,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:31,739 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:31,739 INFO L185 Difference]: Start difference. First operand has 45 places, 32 transitions, 74 flow. Second operand 5 states and 713 transitions. [2021-03-24 19:48:31,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 34 transitions, 90 flow [2021-03-24 19:48:31,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 34 transitions, 86 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 19:48:31,741 INFO L241 Difference]: Finished difference. Result has 46 places, 31 transitions, 80 flow [2021-03-24 19:48:31,741 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=80, PETRI_PLACES=46, PETRI_TRANSITIONS=31} [2021-03-24 19:48:31,741 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2021-03-24 19:48:31,741 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 31 transitions, 80 flow [2021-03-24 19:48:31,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:31,742 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:48:31,742 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:48:31,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 19:48:31,742 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:48:31,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:48:31,743 INFO L82 PathProgramCache]: Analyzing trace with hash -256754635, now seen corresponding path program 1 times [2021-03-24 19:48:31,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:48:31,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095667653] [2021-03-24 19:48:31,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:48:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:48:31,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:31,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:48:31,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:31,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:31,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:31,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:31,812 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:48:31,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:48:31,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:48:31,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095667653] [2021-03-24 19:48:31,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:48:31,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:48:31,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522601054] [2021-03-24 19:48:31,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:48:31,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:48:31,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:48:31,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:48:31,819 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 161 [2021-03-24 19:48:31,820 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 31 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:31,820 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:48:31,820 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 161 [2021-03-24 19:48:31,820 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:48:31,921 INFO L129 PetriNetUnfolder]: 21/102 cut-off events. [2021-03-24 19:48:31,922 INFO L130 PetriNetUnfolder]: For 26/46 co-relation queries the response was YES. [2021-03-24 19:48:31,923 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 102 events. 21/102 cut-off events. For 26/46 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 423 event pairs, 1 based on Foata normal form. 6/105 useless extension candidates. Maximal degree in co-relation 175. Up to 22 conditions per place. [2021-03-24 19:48:31,925 INFO L132 encePairwiseOnDemand]: 154/161 looper letters, 9 selfloop transitions, 5 changer transitions 9/46 dead transitions. [2021-03-24 19:48:31,925 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 46 transitions, 163 flow [2021-03-24 19:48:31,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 19:48:31,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 19:48:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 823 transitions. [2021-03-24 19:48:31,929 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8519668737060041 [2021-03-24 19:48:31,929 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 823 transitions. [2021-03-24 19:48:31,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 823 transitions. [2021-03-24 19:48:31,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:48:31,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 823 transitions. [2021-03-24 19:48:31,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:31,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:31,935 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:31,935 INFO L185 Difference]: Start difference. First operand has 46 places, 31 transitions, 80 flow. Second operand 6 states and 823 transitions. [2021-03-24 19:48:31,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 46 transitions, 163 flow [2021-03-24 19:48:31,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 46 transitions, 153 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-24 19:48:31,938 INFO L241 Difference]: Finished difference. Result has 48 places, 33 transitions, 110 flow [2021-03-24 19:48:31,938 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=110, PETRI_PLACES=48, PETRI_TRANSITIONS=33} [2021-03-24 19:48:31,938 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2021-03-24 19:48:31,938 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 33 transitions, 110 flow [2021-03-24 19:48:31,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:31,939 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:48:31,939 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:48:31,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 19:48:31,940 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:48:31,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:48:31,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1879358274, now seen corresponding path program 1 times [2021-03-24 19:48:31,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:48:31,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403767436] [2021-03-24 19:48:31,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:48:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:48:32,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:48:32,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:32,038 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:48:32,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:48:32,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:48:32,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403767436] [2021-03-24 19:48:32,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:48:32,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:48:32,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306924917] [2021-03-24 19:48:32,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:48:32,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:48:32,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:48:32,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:48:32,046 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 161 [2021-03-24 19:48:32,047 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 33 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,047 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:48:32,047 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 161 [2021-03-24 19:48:32,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:48:32,081 INFO L129 PetriNetUnfolder]: 5/54 cut-off events. [2021-03-24 19:48:32,082 INFO L130 PetriNetUnfolder]: For 51/55 co-relation queries the response was YES. [2021-03-24 19:48:32,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 54 events. 5/54 cut-off events. For 51/55 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 128 event pairs, 2 based on Foata normal form. 3/57 useless extension candidates. Maximal degree in co-relation 98. Up to 14 conditions per place. [2021-03-24 19:48:32,083 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 2 selfloop transitions, 2 changer transitions 2/35 dead transitions. [2021-03-24 19:48:32,083 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 35 transitions, 132 flow [2021-03-24 19:48:32,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:48:32,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:48:32,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 713 transitions. [2021-03-24 19:48:32,088 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8857142857142857 [2021-03-24 19:48:32,088 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 713 transitions. [2021-03-24 19:48:32,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 713 transitions. [2021-03-24 19:48:32,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:48:32,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 713 transitions. [2021-03-24 19:48:32,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,094 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,095 INFO L185 Difference]: Start difference. First operand has 48 places, 33 transitions, 110 flow. Second operand 5 states and 713 transitions. [2021-03-24 19:48:32,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 35 transitions, 132 flow [2021-03-24 19:48:32,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 35 transitions, 119 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-24 19:48:32,098 INFO L241 Difference]: Finished difference. Result has 50 places, 33 transitions, 111 flow [2021-03-24 19:48:32,098 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=111, PETRI_PLACES=50, PETRI_TRANSITIONS=33} [2021-03-24 19:48:32,098 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2021-03-24 19:48:32,099 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 33 transitions, 111 flow [2021-03-24 19:48:32,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,099 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:48:32,100 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:48:32,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 19:48:32,100 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:48:32,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:48:32,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1875455653, now seen corresponding path program 1 times [2021-03-24 19:48:32,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:48:32,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761054822] [2021-03-24 19:48:32,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:48:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:48:32,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:48:32,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:32,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:32,181 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:48:32,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:48:32,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:48:32,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761054822] [2021-03-24 19:48:32,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:48:32,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:48:32,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772736502] [2021-03-24 19:48:32,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:48:32,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:48:32,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:48:32,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:48:32,195 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 161 [2021-03-24 19:48:32,196 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 33 transitions, 111 flow. Second operand has 5 states, 5 states have (on average 134.4) internal successors, (672), 5 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,197 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:48:32,197 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 161 [2021-03-24 19:48:32,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:48:32,258 INFO L129 PetriNetUnfolder]: 9/70 cut-off events. [2021-03-24 19:48:32,258 INFO L130 PetriNetUnfolder]: For 61/67 co-relation queries the response was YES. [2021-03-24 19:48:32,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 70 events. 9/70 cut-off events. For 61/67 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 227 event pairs, 3 based on Foata normal form. 5/75 useless extension candidates. Maximal degree in co-relation 155. Up to 19 conditions per place. [2021-03-24 19:48:32,259 INFO L132 encePairwiseOnDemand]: 154/161 looper letters, 5 selfloop transitions, 4 changer transitions 7/39 dead transitions. [2021-03-24 19:48:32,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 39 transitions, 178 flow [2021-03-24 19:48:32,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:48:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:48:32,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 682 transitions. [2021-03-24 19:48:32,262 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8472049689440994 [2021-03-24 19:48:32,262 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 682 transitions. [2021-03-24 19:48:32,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 682 transitions. [2021-03-24 19:48:32,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:48:32,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 682 transitions. [2021-03-24 19:48:32,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.4) internal successors, (682), 5 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,269 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,270 INFO L185 Difference]: Start difference. First operand has 50 places, 33 transitions, 111 flow. Second operand 5 states and 682 transitions. [2021-03-24 19:48:32,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 39 transitions, 178 flow [2021-03-24 19:48:32,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 39 transitions, 164 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-24 19:48:32,273 INFO L241 Difference]: Finished difference. Result has 50 places, 31 transitions, 108 flow [2021-03-24 19:48:32,273 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=108, PETRI_PLACES=50, PETRI_TRANSITIONS=31} [2021-03-24 19:48:32,274 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2021-03-24 19:48:32,274 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 31 transitions, 108 flow [2021-03-24 19:48:32,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 134.4) internal successors, (672), 5 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,274 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:48:32,274 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:48:32,275 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 19:48:32,276 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:48:32,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:48:32,277 INFO L82 PathProgramCache]: Analyzing trace with hash -2033353371, now seen corresponding path program 1 times [2021-03-24 19:48:32,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:48:32,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008514249] [2021-03-24 19:48:32,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:48:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:48:32,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:48:32,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:32,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:32,353 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:48:32,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:48:32,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:48:32,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008514249] [2021-03-24 19:48:32,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:48:32,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:48:32,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844493136] [2021-03-24 19:48:32,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:48:32,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:48:32,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:48:32,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:48:32,362 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 161 [2021-03-24 19:48:32,363 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 31 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 134.4) internal successors, (672), 5 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,363 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:48:32,363 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 161 [2021-03-24 19:48:32,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:48:32,433 INFO L129 PetriNetUnfolder]: 2/48 cut-off events. [2021-03-24 19:48:32,433 INFO L130 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2021-03-24 19:48:32,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 48 events. 2/48 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 100 event pairs, 0 based on Foata normal form. 2/50 useless extension candidates. Maximal degree in co-relation 102. Up to 8 conditions per place. [2021-03-24 19:48:32,434 INFO L132 encePairwiseOnDemand]: 156/161 looper letters, 6 selfloop transitions, 2 changer transitions 6/37 dead transitions. [2021-03-24 19:48:32,434 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 37 transitions, 178 flow [2021-03-24 19:48:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:48:32,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:48:32,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 947 transitions. [2021-03-24 19:48:32,437 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8402839396628217 [2021-03-24 19:48:32,437 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 947 transitions. [2021-03-24 19:48:32,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 947 transitions. [2021-03-24 19:48:32,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:48:32,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 947 transitions. [2021-03-24 19:48:32,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.28571428571428) internal successors, (947), 7 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,443 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,443 INFO L185 Difference]: Start difference. First operand has 50 places, 31 transitions, 108 flow. Second operand 7 states and 947 transitions. [2021-03-24 19:48:32,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 37 transitions, 178 flow [2021-03-24 19:48:32,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 37 transitions, 152 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-24 19:48:32,445 INFO L241 Difference]: Finished difference. Result has 55 places, 31 transitions, 108 flow [2021-03-24 19:48:32,446 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=108, PETRI_PLACES=55, PETRI_TRANSITIONS=31} [2021-03-24 19:48:32,446 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2021-03-24 19:48:32,446 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 31 transitions, 108 flow [2021-03-24 19:48:32,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 134.4) internal successors, (672), 5 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,448 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:48:32,448 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:48:32,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 19:48:32,449 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:48:32,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:48:32,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1850946672, now seen corresponding path program 1 times [2021-03-24 19:48:32,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:48:32,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783686114] [2021-03-24 19:48:32,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:48:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:48:32,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:48:32,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:32,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:48:32,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:48:32,588 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-03-24 19:48:32,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 19:48:32,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:48:32,627 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:48:32,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:48:32,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:48:32,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783686114] [2021-03-24 19:48:32,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:48:32,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 19:48:32,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52566614] [2021-03-24 19:48:32,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 19:48:32,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:48:32,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 19:48:32,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-03-24 19:48:32,637 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 161 [2021-03-24 19:48:32,638 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 31 transitions, 108 flow. Second operand has 8 states, 8 states have (on average 122.0) internal successors, (976), 8 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,638 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:48:32,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 161 [2021-03-24 19:48:32,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:48:32,770 INFO L129 PetriNetUnfolder]: 73/180 cut-off events. [2021-03-24 19:48:32,771 INFO L130 PetriNetUnfolder]: For 325/328 co-relation queries the response was YES. [2021-03-24 19:48:32,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 180 events. 73/180 cut-off events. For 325/328 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 657 event pairs, 30 based on Foata normal form. 12/188 useless extension candidates. Maximal degree in co-relation 408. Up to 108 conditions per place. [2021-03-24 19:48:32,772 INFO L132 encePairwiseOnDemand]: 151/161 looper letters, 9 selfloop transitions, 8 changer transitions 8/44 dead transitions. [2021-03-24 19:48:32,772 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 44 transitions, 194 flow [2021-03-24 19:48:32,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:48:32,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:48:32,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1116 transitions. [2021-03-24 19:48:32,776 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7701863354037267 [2021-03-24 19:48:32,776 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1116 transitions. [2021-03-24 19:48:32,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1116 transitions. [2021-03-24 19:48:32,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:48:32,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1116 transitions. [2021-03-24 19:48:32,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 124.0) internal successors, (1116), 9 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,782 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,782 INFO L185 Difference]: Start difference. First operand has 55 places, 31 transitions, 108 flow. Second operand 9 states and 1116 transitions. [2021-03-24 19:48:32,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 44 transitions, 194 flow [2021-03-24 19:48:32,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 44 transitions, 162 flow, removed 12 selfloop flow, removed 9 redundant places. [2021-03-24 19:48:32,785 INFO L241 Difference]: Finished difference. Result has 53 places, 34 transitions, 128 flow [2021-03-24 19:48:32,786 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=128, PETRI_PLACES=53, PETRI_TRANSITIONS=34} [2021-03-24 19:48:32,786 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 5 predicate places. [2021-03-24 19:48:32,786 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 34 transitions, 128 flow [2021-03-24 19:48:32,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 122.0) internal successors, (976), 8 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,787 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:48:32,787 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:48:32,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 19:48:32,787 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:48:32,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:48:32,787 INFO L82 PathProgramCache]: Analyzing trace with hash 360770697, now seen corresponding path program 1 times [2021-03-24 19:48:32,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:48:32,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786426564] [2021-03-24 19:48:32,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:48:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:48:32,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:48:32,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:32,884 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:48:32,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:48:32,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:32,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:48:32,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:48:32,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786426564] [2021-03-24 19:48:32,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:48:32,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:48:32,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593637300] [2021-03-24 19:48:32,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:48:32,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:48:32,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:48:32,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:48:32,897 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 161 [2021-03-24 19:48:32,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 34 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:48:32,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 161 [2021-03-24 19:48:32,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:48:32,956 INFO L129 PetriNetUnfolder]: 76/194 cut-off events. [2021-03-24 19:48:32,957 INFO L130 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2021-03-24 19:48:32,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 194 events. 76/194 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 812 event pairs, 37 based on Foata normal form. 14/198 useless extension candidates. Maximal degree in co-relation 432. Up to 81 conditions per place. [2021-03-24 19:48:32,960 INFO L132 encePairwiseOnDemand]: 155/161 looper letters, 8 selfloop transitions, 8 changer transitions 0/44 dead transitions. [2021-03-24 19:48:32,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 44 transitions, 180 flow [2021-03-24 19:48:32,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:48:32,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:48:32,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 683 transitions. [2021-03-24 19:48:32,962 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8484472049689441 [2021-03-24 19:48:32,962 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 683 transitions. [2021-03-24 19:48:32,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 683 transitions. [2021-03-24 19:48:32,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:48:32,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 683 transitions. [2021-03-24 19:48:32,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.6) internal successors, (683), 5 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,966 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,967 INFO L185 Difference]: Start difference. First operand has 53 places, 34 transitions, 128 flow. Second operand 5 states and 683 transitions. [2021-03-24 19:48:32,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 44 transitions, 180 flow [2021-03-24 19:48:32,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 44 transitions, 166 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-03-24 19:48:32,970 INFO L241 Difference]: Finished difference. Result has 52 places, 41 transitions, 174 flow [2021-03-24 19:48:32,971 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=174, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2021-03-24 19:48:32,971 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 4 predicate places. [2021-03-24 19:48:32,971 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 174 flow [2021-03-24 19:48:32,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:32,971 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:48:32,972 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:48:32,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 19:48:32,972 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:48:32,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:48:32,972 INFO L82 PathProgramCache]: Analyzing trace with hash -274092024, now seen corresponding path program 1 times [2021-03-24 19:48:32,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:48:32,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938126077] [2021-03-24 19:48:32,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:48:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:48:33,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:48:33,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:33,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:33,036 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:48:33,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:48:33,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:48:33,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:48:33,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938126077] [2021-03-24 19:48:33,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:48:33,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:48:33,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059416788] [2021-03-24 19:48:33,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:48:33,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:48:33,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:48:33,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:48:33,047 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 161 [2021-03-24 19:48:33,049 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 174 flow. Second operand has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:33,049 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:48:33,049 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 161 [2021-03-24 19:48:33,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:48:33,112 INFO L129 PetriNetUnfolder]: 38/132 cut-off events. [2021-03-24 19:48:33,112 INFO L130 PetriNetUnfolder]: For 153/238 co-relation queries the response was YES. [2021-03-24 19:48:33,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 132 events. 38/132 cut-off events. For 153/238 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 468 event pairs, 7 based on Foata normal form. 53/181 useless extension candidates. Maximal degree in co-relation 409. Up to 68 conditions per place. [2021-03-24 19:48:33,113 INFO L132 encePairwiseOnDemand]: 155/161 looper letters, 5 selfloop transitions, 15 changer transitions 3/51 dead transitions. [2021-03-24 19:48:33,113 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 51 transitions, 278 flow [2021-03-24 19:48:33,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:48:33,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:48:33,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 956 transitions. [2021-03-24 19:48:33,117 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8482697426796806 [2021-03-24 19:48:33,117 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 956 transitions. [2021-03-24 19:48:33,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 956 transitions. [2021-03-24 19:48:33,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:48:33,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 956 transitions. [2021-03-24 19:48:33,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 136.57142857142858) internal successors, (956), 7 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:33,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:33,122 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:33,122 INFO L185 Difference]: Start difference. First operand has 52 places, 41 transitions, 174 flow. Second operand 7 states and 956 transitions. [2021-03-24 19:48:33,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 51 transitions, 278 flow [2021-03-24 19:48:33,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 51 transitions, 274 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 19:48:33,125 INFO L241 Difference]: Finished difference. Result has 60 places, 48 transitions, 269 flow [2021-03-24 19:48:33,126 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=269, PETRI_PLACES=60, PETRI_TRANSITIONS=48} [2021-03-24 19:48:33,126 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 12 predicate places. [2021-03-24 19:48:33,126 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 48 transitions, 269 flow [2021-03-24 19:48:33,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:33,127 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:48:33,127 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:48:33,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 19:48:33,127 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:48:33,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:48:33,127 INFO L82 PathProgramCache]: Analyzing trace with hash 974334014, now seen corresponding path program 1 times [2021-03-24 19:48:33,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:48:33,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582635183] [2021-03-24 19:48:33,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:48:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:48:33,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:48:33,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:33,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:33,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:33,233 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:48:33,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:48:33,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:48:33,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:48:33,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582635183] [2021-03-24 19:48:33,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:48:33,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:48:33,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464181199] [2021-03-24 19:48:33,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:48:33,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:48:33,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:48:33,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:48:33,246 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 161 [2021-03-24 19:48:33,247 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:33,247 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:48:33,247 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 161 [2021-03-24 19:48:33,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:48:33,335 INFO L129 PetriNetUnfolder]: 24/101 cut-off events. [2021-03-24 19:48:33,335 INFO L130 PetriNetUnfolder]: For 353/466 co-relation queries the response was YES. [2021-03-24 19:48:33,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 101 events. 24/101 cut-off events. For 353/466 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 329 event pairs, 1 based on Foata normal form. 50/148 useless extension candidates. Maximal degree in co-relation 402. Up to 58 conditions per place. [2021-03-24 19:48:33,336 INFO L132 encePairwiseOnDemand]: 155/161 looper letters, 2 selfloop transitions, 19 changer transitions 3/52 dead transitions. [2021-03-24 19:48:33,337 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 52 transitions, 347 flow [2021-03-24 19:48:33,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:48:33,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:48:33,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1223 transitions. [2021-03-24 19:48:33,340 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8440303657694962 [2021-03-24 19:48:33,340 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1223 transitions. [2021-03-24 19:48:33,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1223 transitions. [2021-03-24 19:48:33,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:48:33,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1223 transitions. [2021-03-24 19:48:33,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 135.88888888888889) internal successors, (1223), 9 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:33,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:33,346 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:33,346 INFO L185 Difference]: Start difference. First operand has 60 places, 48 transitions, 269 flow. Second operand 9 states and 1223 transitions. [2021-03-24 19:48:33,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 52 transitions, 347 flow [2021-03-24 19:48:33,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 52 transitions, 304 flow, removed 16 selfloop flow, removed 3 redundant places. [2021-03-24 19:48:33,349 INFO L241 Difference]: Finished difference. Result has 68 places, 49 transitions, 287 flow [2021-03-24 19:48:33,350 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=287, PETRI_PLACES=68, PETRI_TRANSITIONS=49} [2021-03-24 19:48:33,350 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 20 predicate places. [2021-03-24 19:48:33,350 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 49 transitions, 287 flow [2021-03-24 19:48:33,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:33,351 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:48:33,351 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:48:33,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 19:48:33,351 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:48:33,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:48:33,352 INFO L82 PathProgramCache]: Analyzing trace with hash 2770514, now seen corresponding path program 1 times [2021-03-24 19:48:33,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:48:33,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457638514] [2021-03-24 19:48:33,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:48:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:48:33,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:48:33,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:48:33,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:48:33,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:48:33,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:48:33,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 19:48:33,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 19:48:33,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 19:48:33,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 19:48:33,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:48:33,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 19:48:33,580 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:48:33,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:48:33,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:48:33,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457638514] [2021-03-24 19:48:33,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:48:33,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 19:48:33,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701055181] [2021-03-24 19:48:33,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 19:48:33,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:48:33,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 19:48:33,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-03-24 19:48:33,590 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 161 [2021-03-24 19:48:33,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 49 transitions, 287 flow. Second operand has 12 states, 12 states have (on average 117.16666666666667) internal successors, (1406), 12 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:33,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:48:33,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 161 [2021-03-24 19:48:33,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:48:33,782 INFO L129 PetriNetUnfolder]: 40/154 cut-off events. [2021-03-24 19:48:33,782 INFO L130 PetriNetUnfolder]: For 713/796 co-relation queries the response was YES. [2021-03-24 19:48:33,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 154 events. 40/154 cut-off events. For 713/796 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 692 event pairs, 0 based on Foata normal form. 16/161 useless extension candidates. Maximal degree in co-relation 575. Up to 45 conditions per place. [2021-03-24 19:48:33,783 INFO L132 encePairwiseOnDemand]: 152/161 looper letters, 10 selfloop transitions, 8 changer transitions 4/54 dead transitions. [2021-03-24 19:48:33,783 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 54 transitions, 361 flow [2021-03-24 19:48:33,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:48:33,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:48:33,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1064 transitions. [2021-03-24 19:48:33,787 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7342995169082126 [2021-03-24 19:48:33,787 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1064 transitions. [2021-03-24 19:48:33,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1064 transitions. [2021-03-24 19:48:33,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:48:33,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1064 transitions. [2021-03-24 19:48:33,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 118.22222222222223) internal successors, (1064), 9 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:33,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:33,792 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:33,793 INFO L185 Difference]: Start difference. First operand has 68 places, 49 transitions, 287 flow. Second operand 9 states and 1064 transitions. [2021-03-24 19:48:33,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 54 transitions, 361 flow [2021-03-24 19:48:33,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 54 transitions, 287 flow, removed 20 selfloop flow, removed 9 redundant places. [2021-03-24 19:48:33,798 INFO L241 Difference]: Finished difference. Result has 68 places, 48 transitions, 240 flow [2021-03-24 19:48:33,798 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=240, PETRI_PLACES=68, PETRI_TRANSITIONS=48} [2021-03-24 19:48:33,798 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 20 predicate places. [2021-03-24 19:48:33,798 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 48 transitions, 240 flow [2021-03-24 19:48:33,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 117.16666666666667) internal successors, (1406), 12 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:48:33,799 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:48:33,799 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:48:33,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 19:48:33,800 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:48:33,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:48:33,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1063304180, now seen corresponding path program 2 times [2021-03-24 19:48:33,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:48:33,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656176839] [2021-03-24 19:48:33,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:48:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 19:48:33,847 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 19:48:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 19:48:33,911 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 19:48:33,955 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-24 19:48:33,955 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-24 19:48:33,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 19:48:34,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 07:48:34 BasicIcfg [2021-03-24 19:48:34,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 19:48:34,051 INFO L168 Benchmark]: Toolchain (without parser) took 13218.50 ms. Allocated memory was 343.9 MB in the beginning and 570.4 MB in the end (delta: 226.5 MB). Free memory was 306.4 MB in the beginning and 482.8 MB in the end (delta: -176.5 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.0 GB. [2021-03-24 19:48:34,051 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 343.9 MB. Free memory was 325.0 MB in the beginning and 324.9 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 19:48:34,051 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.77 ms. Allocated memory is still 343.9 MB. Free memory was 306.2 MB in the beginning and 302.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:48:34,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.85 ms. Allocated memory is still 343.9 MB. Free memory was 302.4 MB in the beginning and 299.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:48:34,052 INFO L168 Benchmark]: Boogie Preprocessor took 28.66 ms. Allocated memory is still 343.9 MB. Free memory was 299.3 MB in the beginning and 297.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:48:34,052 INFO L168 Benchmark]: RCFGBuilder took 1794.87 ms. Allocated memory is still 343.9 MB. Free memory was 297.2 MB in the beginning and 256.2 MB in the end (delta: 41.0 MB). Peak memory consumption was 167.9 MB. Max. memory is 16.0 GB. [2021-03-24 19:48:34,052 INFO L168 Benchmark]: TraceAbstraction took 10765.39 ms. Allocated memory was 343.9 MB in the beginning and 570.4 MB in the end (delta: 226.5 MB). Free memory was 255.1 MB in the beginning and 482.8 MB in the end (delta: -227.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 19:48:34,054 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 343.9 MB. Free memory was 325.0 MB in the beginning and 324.9 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 555.77 ms. Allocated memory is still 343.9 MB. Free memory was 306.2 MB in the beginning and 302.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 65.85 ms. Allocated memory is still 343.9 MB. Free memory was 302.4 MB in the beginning and 299.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.66 ms. Allocated memory is still 343.9 MB. Free memory was 299.3 MB in the beginning and 297.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1794.87 ms. Allocated memory is still 343.9 MB. Free memory was 297.2 MB in the beginning and 256.2 MB in the end (delta: 41.0 MB). Peak memory consumption was 167.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 10765.39 ms. Allocated memory was 343.9 MB in the beginning and 570.4 MB in the end (delta: 226.5 MB). Free memory was 255.1 MB in the beginning and 482.8 MB in the end (delta: -227.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7680.0ms, 102 PlacesBefore, 48 PlacesAfterwards, 94 TransitionsBefore, 39 TransitionsAfterwards, 1686 CoEnabledTransitionPairs, 4 FixpointIterations, 26 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 2882 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1376, positive: 1304, positive conditional: 0, positive unconditional: 1304, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1028, positive: 994, positive conditional: 0, positive unconditional: 994, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1028, positive: 994, positive conditional: 0, positive unconditional: 994, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1028, positive: 988, positive conditional: 0, positive unconditional: 988, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 564, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 548, negative conditional: 0, negative unconditional: 548, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1376, positive: 310, positive conditional: 0, positive unconditional: 310, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 1028, unknown conditional: 0, unknown unconditional: 1028] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L713] 0 int __unbuffered_p2_EAX = 0; [L714] 0 _Bool main$tmp_guard0; [L715] 0 _Bool main$tmp_guard1; [L717] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L718] 0 _Bool x$flush_delayed; [L719] 0 int x$mem_tmp; [L720] 0 _Bool x$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0] [L721] 0 _Bool x$r_buff0_thd1; [L722] 0 _Bool x$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0] [L723] 0 _Bool x$r_buff0_thd3; [L724] 0 _Bool x$r_buff1_thd0; [L725] 0 _Bool x$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0] [L726] 0 _Bool x$r_buff1_thd2; [L727] 0 _Bool x$r_buff1_thd3; [L728] 0 _Bool x$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0] [L729] 0 int *x$read_delayed_var; [L730] 0 int x$w_buff0; [L731] 0 _Bool x$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0] [L732] 0 int x$w_buff1; [L733] 0 _Bool x$w_buff1_used; [L735] 0 int y = 0; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L818] 0 pthread_t t1804; [L819] FCALL, FORK 0 pthread_create(&t1804, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L820] 0 pthread_t t1805; [L821] FCALL, FORK 0 pthread_create(&t1805, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L761] 2 x$w_buff1 = x$w_buff0 [L762] 2 x$w_buff0 = 2 [L763] 2 x$w_buff1_used = x$w_buff0_used [L764] 2 x$w_buff0_used = (_Bool)1 [L18] COND FALSE 2 !(!expression) [L766] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L767] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L768] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L769] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L770] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L773] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L822] 0 pthread_t t1806; [L823] FCALL, FORK 0 pthread_create(&t1806, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L790] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L793] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L741] 1 __unbuffered_p0_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=2, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L744] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=2, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L747] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L747] EXPR 1 x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x [L747] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L747] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L748] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L748] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L749] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L749] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L750] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L750] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L751] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L751] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L776] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L776] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L777] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L777] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L778] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L778] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L779] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L779] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L780] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L780] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L783] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L785] 2 return 0; [L796] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L796] EXPR 3 x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x [L796] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L796] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L797] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L797] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L798] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L798] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L799] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L799] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L800] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L800] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L805] 3 return 0; [L754] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L756] 1 return 0; [L825] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L829] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L829] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L829] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L829] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L830] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L830] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L831] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L831] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L832] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L832] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L833] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L833] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L836] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L837] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L838] 0 x$flush_delayed = weak$$choice2 [L839] 0 x$mem_tmp = x [L840] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L840] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L841] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L841] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0) [L841] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L841] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L842] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L842] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1) [L842] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L842] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L843] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L843] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used) [L843] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L843] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L844] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L844] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L844] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L844] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L845] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L845] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0) [L845] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L845] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L846] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L846] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L846] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L846] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L847] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p0_EAX == 2 && __unbuffered_p2_EAX == 1) [L848] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L848] 0 x = x$flush_delayed ? x$mem_tmp : x [L849] 0 x$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=2, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 96 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 10576.5ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1166.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7748.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 62 SDtfs, 74 SDslu, 77 SDs, 0 SdLazy, 261 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 331.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 398.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=287occurred in iteration=10, InterpolantAutomatonStates: 70, 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: 45.4ms SsaConstructionTime, 451.9ms SatisfiabilityAnalysisTime, 830.1ms InterpolantComputationTime, 285 NumberOfCodeBlocks, 285 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 1127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...