/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 16:02:55,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 16:02:55,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 16:02:55,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 16:02:55,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 16:02:55,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 16:02:55,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 16:02:55,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 16:02:55,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 16:02:55,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 16:02:55,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 16:02:55,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 16:02:55,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 16:02:55,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 16:02:55,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 16:02:55,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 16:02:55,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 16:02:55,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 16:02:55,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 16:02:55,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 16:02:55,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 16:02:55,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 16:02:55,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 16:02:55,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 16:02:55,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-28 16:02:55,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-28 16:02:55,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-28 16:02:55,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-28 16:02:55,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-28 16:02:55,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-28 16:02:55,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 16:02:55,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 16:02:55,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 16:02:55,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 16:02:55,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 16:02:55,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 16:02:55,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 16:02:55,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 16:02:55,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 16:02:55,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 16:02:55,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 16:02:55,898 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 16:02:55,959 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 16:02:55,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 16:02:55,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 16:02:55,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 16:02:55,964 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 16:02:55,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 16:02:55,964 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 16:02:55,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 16:02:55,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 16:02:55,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 16:02:55,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 16:02:55,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 16:02:55,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 16:02:55,967 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 16:02:55,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 16:02:55,968 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 16:02:55,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 16:02:55,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 16:02:55,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 16:02:55,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 16:02:55,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 16:02:55,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 16:02:55,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 16:02:55,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 16:02:55,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 16:02:55,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 16:02:55,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 16:02:55,971 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 16:02:55,971 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 16:02:55,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 16:02:55,971 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 16:02:56,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 16:02:56,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 16:02:56,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 16:02:56,420 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 16:02:56,421 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 16:02:56,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i [2021-04-28 16:02:56,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a833fc04/7d7be09db1894b8398f0fabe8e28a3fd/FLAGdfe773c81 [2021-04-28 16:02:57,252 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 16:02:57,253 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i [2021-04-28 16:02:57,268 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a833fc04/7d7be09db1894b8398f0fabe8e28a3fd/FLAGdfe773c81 [2021-04-28 16:02:57,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a833fc04/7d7be09db1894b8398f0fabe8e28a3fd [2021-04-28 16:02:57,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 16:02:57,530 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 16:02:57,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 16:02:57,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 16:02:57,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 16:02:57,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 04:02:57" (1/1) ... [2021-04-28 16:02:57,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d509a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:02:57, skipping insertion in model container [2021-04-28 16:02:57,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 04:02:57" (1/1) ... [2021-04-28 16:02:57,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 16:02:57,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 16:02:58,124 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-ext/32_pthread5_vs.i[30454,30467] [2021-04-28 16:02:58,137 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-ext/32_pthread5_vs.i[30634,30647] [2021-04-28 16:02:58,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 16:02:58,163 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 16:02:58,243 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-ext/32_pthread5_vs.i[30454,30467] [2021-04-28 16:02:58,245 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-ext/32_pthread5_vs.i[30634,30647] [2021-04-28 16:02:58,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 16:02:58,412 INFO L208 MainTranslator]: Completed translation [2021-04-28 16:02:58,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:02:58 WrapperNode [2021-04-28 16:02:58,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 16:02:58,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 16:02:58,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 16:02:58,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 16:02:58,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:02:58" (1/1) ... [2021-04-28 16:02:58,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:02:58" (1/1) ... [2021-04-28 16:02:58,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 16:02:58,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 16:02:58,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 16:02:58,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 16:02:58,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:02:58" (1/1) ... [2021-04-28 16:02:58,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:02:58" (1/1) ... [2021-04-28 16:02:58,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:02:58" (1/1) ... [2021-04-28 16:02:58,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:02:58" (1/1) ... [2021-04-28 16:02:58,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:02:58" (1/1) ... [2021-04-28 16:02:58,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:02:58" (1/1) ... [2021-04-28 16:02:58,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:02:58" (1/1) ... [2021-04-28 16:02:58,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 16:02:58,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 16:02:58,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 16:02:58,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 16:02:58,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:02:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 16:02:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-04-28 16:02:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-04-28 16:02:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure thr3 [2021-04-28 16:02:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure thr3 [2021-04-28 16:02:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-04-28 16:02:58,686 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-04-28 16:02:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 16:02:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 16:02:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 16:02:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 16:02:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 16:02:58,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 16:02:58,689 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 16:02:59,576 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 16:02:59,576 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-04-28 16:02:59,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 04:02:59 BoogieIcfgContainer [2021-04-28 16:02:59,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 16:02:59,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 16:02:59,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 16:02:59,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 16:02:59,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 04:02:57" (1/3) ... [2021-04-28 16:02:59,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a12db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 04:02:59, skipping insertion in model container [2021-04-28 16:02:59,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:02:58" (2/3) ... [2021-04-28 16:02:59,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a12db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 04:02:59, skipping insertion in model container [2021-04-28 16:02:59,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 04:02:59" (3/3) ... [2021-04-28 16:02:59,597 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_pthread5_vs.i [2021-04-28 16:02:59,604 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 16:02:59,610 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 16:02:59,611 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 16:02:59,642 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,642 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,643 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,643 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,643 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,644 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,644 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,644 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,645 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,645 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,645 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,645 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,645 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,646 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,646 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,647 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,647 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,648 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,648 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,648 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,648 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,648 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,649 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,649 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,649 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,649 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,649 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,650 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,650 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,650 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,651 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,651 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,651 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,651 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,653 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,654 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,654 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,654 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,654 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,655 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,655 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,656 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,656 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,656 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,656 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,657 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,657 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,657 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,658 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,658 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,658 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,658 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,659 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,659 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,660 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,660 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,661 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,661 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,661 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,661 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,662 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,662 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,662 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,662 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,665 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,665 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,666 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,666 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,666 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,668 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,669 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,669 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,669 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,670 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,670 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,672 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,672 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,672 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,673 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,673 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,673 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,673 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:02:59,675 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 16:02:59,700 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 16:02:59,729 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 16:02:59,729 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 16:02:59,729 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 16:02:59,729 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 16:02:59,730 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 16:02:59,730 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 16:02:59,730 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 16:02:59,730 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 16:02:59,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 171 flow [2021-04-28 16:02:59,806 INFO L129 PetriNetUnfolder]: 8/84 cut-off events. [2021-04-28 16:02:59,806 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:02:59,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 84 events. 8/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 153 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 72. Up to 4 conditions per place. [2021-04-28 16:02:59,818 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 78 transitions, 171 flow [2021-04-28 16:02:59,828 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 76 transitions, 163 flow [2021-04-28 16:02:59,830 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:02:59,848 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 76 transitions, 163 flow [2021-04-28 16:02:59,852 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 76 transitions, 163 flow [2021-04-28 16:02:59,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 76 transitions, 163 flow [2021-04-28 16:02:59,880 INFO L129 PetriNetUnfolder]: 8/84 cut-off events. [2021-04-28 16:02:59,880 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:02:59,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 84 events. 8/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 161 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 72. Up to 4 conditions per place. [2021-04-28 16:02:59,886 INFO L146 LiptonReduction]: Number of co-enabled transitions 2186 [2021-04-28 16:03:04,061 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 16:03:05,902 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 16:03:06,102 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 16:03:06,284 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 16:03:06,462 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 16:03:06,638 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 16:03:06,935 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 16:03:07,142 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 16:03:07,330 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 16:03:07,497 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 16:03:07,858 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 16:03:08,037 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 16:03:08,222 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 16:03:08,686 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 16:03:08,873 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 16:03:09,120 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2021-04-28 16:03:09,378 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2021-04-28 16:03:09,638 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2021-04-28 16:03:09,883 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2021-04-28 16:03:10,034 INFO L158 LiptonReduction]: Checked pairs total: 14889 [2021-04-28 16:03:10,035 INFO L160 LiptonReduction]: Total number of compositions: 118 [2021-04-28 16:03:10,039 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10211 [2021-04-28 16:03:10,059 INFO L129 PetriNetUnfolder]: 1/56 cut-off events. [2021-04-28 16:03:10,060 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:03:10,060 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:03:10,061 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 16:03:10,061 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-28 16:03:10,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:03:10,068 INFO L82 PathProgramCache]: Analyzing trace with hash -546161700, now seen corresponding path program 1 times [2021-04-28 16:03:10,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:03:10,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546324220] [2021-04-28 16:03:10,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:03:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:03:10,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:03:10,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 16:03:10,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 16:03:10,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546324220] [2021-04-28 16:03:10,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:03:10,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 16:03:10,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374967018] [2021-04-28 16:03:10,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 16:03:10,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:03:10,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 16:03:10,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 16:03:10,325 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 196 [2021-04-28 16:03:10,336 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 205 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:10,336 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:03:10,336 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 196 [2021-04-28 16:03:10,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:03:10,533 INFO L129 PetriNetUnfolder]: 221/697 cut-off events. [2021-04-28 16:03:10,533 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:03:10,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1044 conditions, 697 events. 221/697 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5241 event pairs, 53 based on Foata normal form. 195/527 useless extension candidates. Maximal degree in co-relation 1001. Up to 200 conditions per place. [2021-04-28 16:03:10,551 INFO L132 encePairwiseOnDemand]: 163/196 looper letters, 13 selfloop transitions, 8 changer transitions 24/92 dead transitions. [2021-04-28 16:03:10,551 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 92 transitions, 257 flow [2021-04-28 16:03:10,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 16:03:10,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 16:03:10,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2021-04-28 16:03:10,577 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2021-04-28 16:03:10,578 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2021-04-28 16:03:10,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2021-04-28 16:03:10,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:03:10,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2021-04-28 16:03:10,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:10,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:10,599 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:10,601 INFO L185 Difference]: Start difference. First operand has 101 places, 97 transitions, 205 flow. Second operand 3 states and 385 transitions. [2021-04-28 16:03:10,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 92 transitions, 257 flow [2021-04-28 16:03:10,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 92 transitions, 255 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 16:03:10,608 INFO L241 Difference]: Finished difference. Result has 91 places, 66 transitions, 191 flow [2021-04-28 16:03:10,611 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=91, PETRI_TRANSITIONS=66} [2021-04-28 16:03:10,612 INFO L343 CegarLoopForPetriNet]: 101 programPoint places, -10 predicate places. [2021-04-28 16:03:10,612 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:03:10,612 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 66 transitions, 191 flow [2021-04-28 16:03:10,613 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 66 transitions, 191 flow [2021-04-28 16:03:10,614 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 66 transitions, 191 flow [2021-04-28 16:03:10,664 INFO L129 PetriNetUnfolder]: 108/491 cut-off events. [2021-04-28 16:03:10,664 INFO L130 PetriNetUnfolder]: For 37/45 co-relation queries the response was YES. [2021-04-28 16:03:10,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 768 conditions, 491 events. 108/491 cut-off events. For 37/45 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3863 event pairs, 29 based on Foata normal form. 0/258 useless extension candidates. Maximal degree in co-relation 758. Up to 101 conditions per place. [2021-04-28 16:03:10,678 INFO L146 LiptonReduction]: Number of co-enabled transitions 2012 [2021-04-28 16:03:10,737 INFO L158 LiptonReduction]: Checked pairs total: 1262 [2021-04-28 16:03:10,738 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 16:03:10,738 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 126 [2021-04-28 16:03:10,740 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 66 transitions, 191 flow [2021-04-28 16:03:10,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:10,741 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:03:10,741 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 16:03:10,741 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 16:03:10,742 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-28 16:03:10,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:03:10,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1774352021, now seen corresponding path program 1 times [2021-04-28 16:03:10,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:03:10,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107844192] [2021-04-28 16:03:10,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:03:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:03:10,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:03:10,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 16:03:10,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:03:10,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 16:03:10,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:03:10,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 16:03:10,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:03:10,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 16:03:10,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 16:03:10,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107844192] [2021-04-28 16:03:10,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:03:10,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 16:03:10,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443551066] [2021-04-28 16:03:10,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 16:03:10,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:03:10,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 16:03:10,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 16:03:10,974 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 196 [2021-04-28 16:03:10,976 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 66 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:10,977 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:03:10,977 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 196 [2021-04-28 16:03:10,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:03:11,476 INFO L129 PetriNetUnfolder]: 817/2084 cut-off events. [2021-04-28 16:03:11,477 INFO L130 PetriNetUnfolder]: For 318/318 co-relation queries the response was YES. [2021-04-28 16:03:11,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4022 conditions, 2084 events. 817/2084 cut-off events. For 318/318 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 17659 event pairs, 373 based on Foata normal form. 262/1486 useless extension candidates. Maximal degree in co-relation 4010. Up to 778 conditions per place. [2021-04-28 16:03:11,502 INFO L132 encePairwiseOnDemand]: 170/196 looper letters, 57 selfloop transitions, 51 changer transitions 0/133 dead transitions. [2021-04-28 16:03:11,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 133 transitions, 571 flow [2021-04-28 16:03:11,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 16:03:11,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 16:03:11,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 864 transitions. [2021-04-28 16:03:11,507 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4897959183673469 [2021-04-28 16:03:11,507 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 864 transitions. [2021-04-28 16:03:11,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 864 transitions. [2021-04-28 16:03:11,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:03:11,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 864 transitions. [2021-04-28 16:03:11,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 96.0) internal successors, (864), 9 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:11,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 196.0) internal successors, (1960), 10 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:11,519 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 196.0) internal successors, (1960), 10 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:11,519 INFO L185 Difference]: Start difference. First operand has 67 places, 66 transitions, 191 flow. Second operand 9 states and 864 transitions. [2021-04-28 16:03:11,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 133 transitions, 571 flow [2021-04-28 16:03:11,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 133 transitions, 545 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 16:03:11,528 INFO L241 Difference]: Finished difference. Result has 81 places, 111 transitions, 629 flow [2021-04-28 16:03:11,528 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=629, PETRI_PLACES=81, PETRI_TRANSITIONS=111} [2021-04-28 16:03:11,529 INFO L343 CegarLoopForPetriNet]: 101 programPoint places, -20 predicate places. [2021-04-28 16:03:11,529 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:03:11,529 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 111 transitions, 629 flow [2021-04-28 16:03:11,530 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 111 transitions, 629 flow [2021-04-28 16:03:11,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 111 transitions, 629 flow [2021-04-28 16:03:11,720 INFO L129 PetriNetUnfolder]: 432/1583 cut-off events. [2021-04-28 16:03:11,720 INFO L130 PetriNetUnfolder]: For 784/867 co-relation queries the response was YES. [2021-04-28 16:03:11,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4277 conditions, 1583 events. 432/1583 cut-off events. For 784/867 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 15522 event pairs, 216 based on Foata normal form. 7/803 useless extension candidates. Maximal degree in co-relation 4259. Up to 519 conditions per place. [2021-04-28 16:03:11,766 INFO L146 LiptonReduction]: Number of co-enabled transitions 2482 [2021-04-28 16:03:11,787 INFO L158 LiptonReduction]: Checked pairs total: 108 [2021-04-28 16:03:11,787 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 16:03:11,787 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 258 [2021-04-28 16:03:11,789 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 111 transitions, 629 flow [2021-04-28 16:03:11,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:11,790 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:03:11,791 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 16:03:11,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 16:03:11,791 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-28 16:03:11,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:03:11,792 INFO L82 PathProgramCache]: Analyzing trace with hash -882657533, now seen corresponding path program 1 times [2021-04-28 16:03:11,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:03:11,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140419814] [2021-04-28 16:03:11,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:03:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:03:11,815 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:03:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:03:11,830 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:03:11,855 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 16:03:11,855 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 16:03:11,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 16:03:11,857 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-28 16:03:11,857 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-04-28 16:03:11,874 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,874 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,874 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,874 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,875 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,875 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,875 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,875 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,875 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,875 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,876 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,876 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,876 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,876 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,876 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,876 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,877 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,877 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,877 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,877 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,877 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,878 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,878 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,878 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,878 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,878 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,878 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,878 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,879 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,879 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,879 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,879 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,879 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,880 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,880 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,880 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,880 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,880 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,881 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,881 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,881 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,881 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,881 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,882 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,882 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,882 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,882 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,882 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,882 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,883 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,883 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,883 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,883 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,883 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,883 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,883 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,884 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,884 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,884 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,884 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,884 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,884 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,885 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,885 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,885 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,885 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,885 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,885 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,886 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,886 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,886 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,886 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,886 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,887 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,887 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,887 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,887 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,887 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,888 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,888 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,888 WARN L313 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,888 WARN L313 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,888 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,888 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,889 WARN L313 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,889 WARN L313 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,889 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,889 WARN L313 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,889 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,889 WARN L313 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,890 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,890 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,890 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,890 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,890 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,890 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,891 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,891 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,891 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,891 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,891 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,891 WARN L313 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,891 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,892 WARN L313 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,892 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,892 WARN L313 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,892 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,892 WARN L313 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,893 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,893 WARN L313 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,893 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,893 WARN L313 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,893 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,894 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,894 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,894 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,894 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,895 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,895 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,895 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,895 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,897 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,898 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,898 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,898 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,898 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,900 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,901 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,901 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,902 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,903 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,903 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,903 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,903 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,904 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,904 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,905 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,905 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,905 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,905 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,907 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,907 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,908 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,908 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,909 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,909 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,910 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,910 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,910 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,911 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,911 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,911 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,911 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,912 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,912 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,913 WARN L313 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,913 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,913 WARN L313 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,913 WARN L313 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,913 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:03:11,915 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 16:03:11,915 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-04-28 16:03:11,917 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 16:03:11,917 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 16:03:11,917 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 16:03:11,917 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 16:03:11,917 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 16:03:11,917 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 16:03:11,918 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 16:03:11,918 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 16:03:11,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 125 transitions, 286 flow [2021-04-28 16:03:11,939 INFO L129 PetriNetUnfolder]: 12/117 cut-off events. [2021-04-28 16:03:11,939 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 16:03:11,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 117 events. 12/117 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 298 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 128. Up to 6 conditions per place. [2021-04-28 16:03:11,941 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 125 transitions, 286 flow [2021-04-28 16:03:11,943 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 100 transitions, 218 flow [2021-04-28 16:03:11,943 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:03:11,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 100 transitions, 218 flow [2021-04-28 16:03:11,944 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 100 transitions, 218 flow [2021-04-28 16:03:11,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 100 transitions, 218 flow [2021-04-28 16:03:11,959 INFO L129 PetriNetUnfolder]: 12/117 cut-off events. [2021-04-28 16:03:11,960 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 16:03:11,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 117 events. 12/117 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 290 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 109. Up to 6 conditions per place. [2021-04-28 16:03:11,966 INFO L146 LiptonReduction]: Number of co-enabled transitions 4758 [2021-04-28 16:03:16,241 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-04-28 16:03:16,387 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-04-28 16:03:18,636 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2021-04-28 16:03:18,928 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2021-04-28 16:03:19,890 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2021-04-28 16:03:20,153 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2021-04-28 16:03:20,509 INFO L158 LiptonReduction]: Checked pairs total: 35186 [2021-04-28 16:03:20,509 INFO L160 LiptonReduction]: Total number of compositions: 114 [2021-04-28 16:03:20,510 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8567 [2021-04-28 16:03:20,518 INFO L129 PetriNetUnfolder]: 1/52 cut-off events. [2021-04-28 16:03:20,519 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:03:20,519 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:03:20,519 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 16:03:20,519 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:03:20,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:03:20,520 INFO L82 PathProgramCache]: Analyzing trace with hash -216197021, now seen corresponding path program 1 times [2021-04-28 16:03:20,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:03:20,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611266711] [2021-04-28 16:03:20,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:03:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:03:20,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:03:20,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 16:03:20,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 16:03:20,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611266711] [2021-04-28 16:03:20,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:03:20,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 16:03:20,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732405649] [2021-04-28 16:03:20,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 16:03:20,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:03:20,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 16:03:20,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 16:03:20,565 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 239 [2021-04-28 16:03:20,566 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 117 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:20,566 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:03:20,566 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 239 [2021-04-28 16:03:20,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:03:20,985 INFO L129 PetriNetUnfolder]: 1313/2771 cut-off events. [2021-04-28 16:03:20,985 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 16:03:21,000 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4357 conditions, 2771 events. 1313/2771 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 22007 event pairs, 609 based on Foata normal form. 735/2100 useless extension candidates. Maximal degree in co-relation 4316. Up to 1396 conditions per place. [2021-04-28 16:03:21,033 INFO L132 encePairwiseOnDemand]: 210/239 looper letters, 23 selfloop transitions, 2 changer transitions 22/111 dead transitions. [2021-04-28 16:03:21,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 111 transitions, 308 flow [2021-04-28 16:03:21,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 16:03:21,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 16:03:21,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2021-04-28 16:03:21,036 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7266387726638772 [2021-04-28 16:03:21,036 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 521 transitions. [2021-04-28 16:03:21,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 521 transitions. [2021-04-28 16:03:21,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:03:21,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 521 transitions. [2021-04-28 16:03:21,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:21,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 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) [2021-04-28 16:03:21,042 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 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) [2021-04-28 16:03:21,042 INFO L185 Difference]: Start difference. First operand has 121 places, 117 transitions, 252 flow. Second operand 3 states and 521 transitions. [2021-04-28 16:03:21,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 111 transitions, 308 flow [2021-04-28 16:03:21,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 111 transitions, 304 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 16:03:21,051 INFO L241 Difference]: Finished difference. Result has 109 places, 80 transitions, 188 flow [2021-04-28 16:03:21,051 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=109, PETRI_TRANSITIONS=80} [2021-04-28 16:03:21,051 INFO L343 CegarLoopForPetriNet]: 121 programPoint places, -12 predicate places. [2021-04-28 16:03:21,052 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:03:21,052 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 80 transitions, 188 flow [2021-04-28 16:03:21,052 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 80 transitions, 188 flow [2021-04-28 16:03:21,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 188 flow [2021-04-28 16:03:21,070 INFO L129 PetriNetUnfolder]: 12/118 cut-off events. [2021-04-28 16:03:21,070 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-28 16:03:21,071 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 118 events. 12/118 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 544 event pairs, 9 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 146. Up to 22 conditions per place. [2021-04-28 16:03:21,076 INFO L146 LiptonReduction]: Number of co-enabled transitions 3970 [2021-04-28 16:03:21,336 INFO L158 LiptonReduction]: Checked pairs total: 6858 [2021-04-28 16:03:21,336 INFO L160 LiptonReduction]: Total number of compositions: 2 [2021-04-28 16:03:21,336 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 285 [2021-04-28 16:03:21,338 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 80 transitions, 188 flow [2021-04-28 16:03:21,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:21,339 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:03:21,339 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 16:03:21,339 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 16:03:21,340 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:03:21,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:03:21,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1184676567, now seen corresponding path program 1 times [2021-04-28 16:03:21,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:03:21,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34408373] [2021-04-28 16:03:21,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:03:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:03:21,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:03:21,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 16:03:21,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:03:21,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 16:03:21,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:03:21,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 16:03:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 16:03:21,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34408373] [2021-04-28 16:03:21,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:03:21,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 16:03:21,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624509083] [2021-04-28 16:03:21,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 16:03:21,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:03:21,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 16:03:21,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 16:03:21,381 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 241 [2021-04-28 16:03:21,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 80 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:21,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:03:21,382 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 241 [2021-04-28 16:03:21,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:03:21,625 INFO L129 PetriNetUnfolder]: 315/1536 cut-off events. [2021-04-28 16:03:21,625 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-28 16:03:21,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2648 conditions, 1536 events. 315/1536 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 15218 event pairs, 158 based on Foata normal form. 913/1764 useless extension candidates. Maximal degree in co-relation 2636. Up to 631 conditions per place. [2021-04-28 16:03:21,639 INFO L132 encePairwiseOnDemand]: 212/241 looper letters, 1 selfloop transitions, 35 changer transitions 0/80 dead transitions. [2021-04-28 16:03:21,640 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 80 transitions, 260 flow [2021-04-28 16:03:21,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 16:03:21,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 16:03:21,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 482 transitions. [2021-04-28 16:03:21,642 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2021-04-28 16:03:21,642 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 482 transitions. [2021-04-28 16:03:21,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 482 transitions. [2021-04-28 16:03:21,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:03:21,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 482 transitions. [2021-04-28 16:03:21,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:21,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:21,648 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:21,648 INFO L185 Difference]: Start difference. First operand has 87 places, 80 transitions, 188 flow. Second operand 3 states and 482 transitions. [2021-04-28 16:03:21,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 80 transitions, 260 flow [2021-04-28 16:03:21,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 80 transitions, 256 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 16:03:21,654 INFO L241 Difference]: Finished difference. Result has 87 places, 80 transitions, 254 flow [2021-04-28 16:03:21,654 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=87, PETRI_TRANSITIONS=80} [2021-04-28 16:03:21,654 INFO L343 CegarLoopForPetriNet]: 121 programPoint places, -34 predicate places. [2021-04-28 16:03:21,654 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:03:21,655 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 254 flow [2021-04-28 16:03:21,655 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 254 flow [2021-04-28 16:03:21,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 254 flow [2021-04-28 16:03:21,787 INFO L129 PetriNetUnfolder]: 315/1585 cut-off events. [2021-04-28 16:03:21,787 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-28 16:03:21,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2645 conditions, 1585 events. 315/1585 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 16147 event pairs, 158 based on Foata normal form. 0/868 useless extension candidates. Maximal degree in co-relation 2636. Up to 631 conditions per place. [2021-04-28 16:03:21,817 INFO L146 LiptonReduction]: Number of co-enabled transitions 1700 [2021-04-28 16:03:22,880 INFO L158 LiptonReduction]: Checked pairs total: 228 [2021-04-28 16:03:22,880 INFO L160 LiptonReduction]: Total number of compositions: 16 [2021-04-28 16:03:22,880 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1226 [2021-04-28 16:03:22,883 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 80 transitions, 254 flow [2021-04-28 16:03:22,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:22,883 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:03:22,884 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 16:03:22,884 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 16:03:22,884 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:03:22,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:03:22,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1693743432, now seen corresponding path program 1 times [2021-04-28 16:03:22,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:03:22,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221255024] [2021-04-28 16:03:22,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:03:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:03:22,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:03:22,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 16:03:22,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:03:22,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 16:03:22,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:03:22,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 16:03:22,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 16:03:22,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221255024] [2021-04-28 16:03:22,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:03:22,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 16:03:22,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39450762] [2021-04-28 16:03:22,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 16:03:22,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:03:22,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 16:03:22,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 16:03:22,929 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 257 [2021-04-28 16:03:22,930 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 80 transitions, 254 flow. Second operand has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:22,931 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:03:22,931 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 257 [2021-04-28 16:03:22,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:03:23,237 INFO L129 PetriNetUnfolder]: 499/2054 cut-off events. [2021-04-28 16:03:23,237 INFO L130 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2021-04-28 16:03:23,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4097 conditions, 2054 events. 499/2054 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 21212 event pairs, 178 based on Foata normal form. 69/1066 useless extension candidates. Maximal degree in co-relation 4086. Up to 895 conditions per place. [2021-04-28 16:03:23,259 INFO L132 encePairwiseOnDemand]: 237/257 looper letters, 16 selfloop transitions, 16 changer transitions 0/90 dead transitions. [2021-04-28 16:03:23,259 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 90 transitions, 344 flow [2021-04-28 16:03:23,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 16:03:23,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 16:03:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 810 transitions. [2021-04-28 16:03:23,263 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6303501945525292 [2021-04-28 16:03:23,263 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 810 transitions. [2021-04-28 16:03:23,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 810 transitions. [2021-04-28 16:03:23,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:03:23,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 810 transitions. [2021-04-28 16:03:23,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:23,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:23,271 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:23,271 INFO L185 Difference]: Start difference. First operand has 87 places, 80 transitions, 254 flow. Second operand 5 states and 810 transitions. [2021-04-28 16:03:23,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 90 transitions, 344 flow [2021-04-28 16:03:23,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 90 transitions, 306 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 16:03:23,277 INFO L241 Difference]: Finished difference. Result has 90 places, 88 transitions, 317 flow [2021-04-28 16:03:23,277 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=317, PETRI_PLACES=90, PETRI_TRANSITIONS=88} [2021-04-28 16:03:23,277 INFO L343 CegarLoopForPetriNet]: 121 programPoint places, -31 predicate places. [2021-04-28 16:03:23,277 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:03:23,278 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 88 transitions, 317 flow [2021-04-28 16:03:23,278 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 88 transitions, 317 flow [2021-04-28 16:03:23,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 88 transitions, 317 flow [2021-04-28 16:03:23,459 INFO L129 PetriNetUnfolder]: 499/2114 cut-off events. [2021-04-28 16:03:23,459 INFO L130 PetriNetUnfolder]: For 101/101 co-relation queries the response was YES. [2021-04-28 16:03:23,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3299 conditions, 2114 events. 499/2114 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 22373 event pairs, 164 based on Foata normal form. 0/911 useless extension candidates. Maximal degree in co-relation 3286. Up to 412 conditions per place. [2021-04-28 16:03:23,496 INFO L146 LiptonReduction]: Number of co-enabled transitions 1878 [2021-04-28 16:03:24,303 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2021-04-28 16:03:27,156 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-04-28 16:03:27,402 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-04-28 16:03:28,044 INFO L158 LiptonReduction]: Checked pairs total: 467 [2021-04-28 16:03:28,044 INFO L160 LiptonReduction]: Total number of compositions: 37 [2021-04-28 16:03:28,045 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4768 [2021-04-28 16:03:28,047 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 88 transitions, 354 flow [2021-04-28 16:03:28,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:28,047 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:03:28,048 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 16:03:28,048 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 16:03:28,048 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:03:28,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:03:28,048 INFO L82 PathProgramCache]: Analyzing trace with hash 459324096, now seen corresponding path program 1 times [2021-04-28 16:03:28,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:03:28,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173088867] [2021-04-28 16:03:28,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:03:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:03:28,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:03:28,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 16:03:28,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:03:28,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 16:03:28,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 16:03:28,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173088867] [2021-04-28 16:03:28,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:03:28,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 16:03:28,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269657517] [2021-04-28 16:03:28,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 16:03:28,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:03:28,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 16:03:28,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 16:03:28,094 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 294 [2021-04-28 16:03:28,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 88 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 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) [2021-04-28 16:03:28,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:03:28,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 294 [2021-04-28 16:03:28,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:03:28,760 INFO L129 PetriNetUnfolder]: 1541/4601 cut-off events. [2021-04-28 16:03:28,760 INFO L130 PetriNetUnfolder]: For 3421/3794 co-relation queries the response was YES. [2021-04-28 16:03:28,779 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8684 conditions, 4601 events. 1541/4601 cut-off events. For 3421/3794 co-relation queries the response was YES. Maximal size of possible extension queue 969. Compared 55113 event pairs, 372 based on Foata normal form. 202/1715 useless extension candidates. Maximal degree in co-relation 8669. Up to 1013 conditions per place. [2021-04-28 16:03:28,810 INFO L132 encePairwiseOnDemand]: 268/294 looper letters, 26 selfloop transitions, 12 changer transitions 0/98 dead transitions. [2021-04-28 16:03:28,811 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 98 transitions, 488 flow [2021-04-28 16:03:28,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 16:03:28,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 16:03:28,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 616 transitions. [2021-04-28 16:03:28,814 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6984126984126984 [2021-04-28 16:03:28,814 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 616 transitions. [2021-04-28 16:03:28,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 616 transitions. [2021-04-28 16:03:28,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:03:28,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 616 transitions. [2021-04-28 16:03:28,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:28,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:28,820 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 16:03:28,821 INFO L185 Difference]: Start difference. First operand has 90 places, 88 transitions, 354 flow. Second operand 3 states and 616 transitions. [2021-04-28 16:03:28,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 98 transitions, 488 flow [2021-04-28 16:03:28,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 98 transitions, 480 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 16:03:28,832 INFO L241 Difference]: Finished difference. Result has 92 places, 96 transitions, 490 flow [2021-04-28 16:03:28,833 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=92, PETRI_TRANSITIONS=96} [2021-04-28 16:03:28,833 INFO L343 CegarLoopForPetriNet]: 121 programPoint places, -29 predicate places. [2021-04-28 16:03:28,833 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:03:28,833 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 96 transitions, 490 flow [2021-04-28 16:03:28,834 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 96 transitions, 490 flow [2021-04-28 16:03:28,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 96 transitions, 490 flow [2021-04-28 16:03:29,424 INFO L129 PetriNetUnfolder]: 1946/5759 cut-off events. [2021-04-28 16:03:29,425 INFO L130 PetriNetUnfolder]: For 3219/3572 co-relation queries the response was YES. [2021-04-28 16:03:29,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10574 conditions, 5759 events. 1946/5759 cut-off events. For 3219/3572 co-relation queries the response was YES. Maximal size of possible extension queue 1274. Compared 71363 event pairs, 470 based on Foata normal form. 9/1859 useless extension candidates. Maximal degree in co-relation 10558. Up to 1382 conditions per place. [2021-04-28 16:03:29,546 INFO L146 LiptonReduction]: Number of co-enabled transitions 1850 [2021-04-28 16:03:29,560 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 16:03:29,560 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 16:03:29,560 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 727 [2021-04-28 16:03:29,562 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 96 transitions, 490 flow [2021-04-28 16:03:29,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 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) [2021-04-28 16:03:29,563 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:03:29,563 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 16:03:29,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 16:03:29,563 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:03:29,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:03:29,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1192570117, now seen corresponding path program 1 times [2021-04-28 16:03:29,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:03:29,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611072656] [2021-04-28 16:03:29,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:03:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:03:29,603 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:03:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:03:29,630 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:03:29,646 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 16:03:29,649 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 16:03:29,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 16:03:29,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 04:03:29 BasicIcfg [2021-04-28 16:03:29,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 16:03:29,698 INFO L168 Benchmark]: Toolchain (without parser) took 32201.14 ms. Allocated memory was 306.2 MB in the beginning and 700.4 MB in the end (delta: 394.3 MB). Free memory was 280.1 MB in the beginning and 322.0 MB in the end (delta: -41.8 MB). Peak memory consumption was 355.6 MB. Max. memory is 16.0 GB. [2021-04-28 16:03:29,699 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 306.2 MB. Free memory is still 274.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 16:03:29,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 881.56 ms. Allocated memory is still 306.2 MB. Free memory was 276.9 MB in the beginning and 276.5 MB in the end (delta: 490.1 kB). Peak memory consumption was 24.7 MB. Max. memory is 16.0 GB. [2021-04-28 16:03:29,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.22 ms. Allocated memory is still 306.2 MB. Free memory was 276.5 MB in the beginning and 274.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 16:03:29,700 INFO L168 Benchmark]: Boogie Preprocessor took 66.72 ms. Allocated memory is still 306.2 MB. Free memory was 274.4 MB in the beginning and 273.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 16:03:29,701 INFO L168 Benchmark]: RCFGBuilder took 999.73 ms. Allocated memory is still 306.2 MB. Free memory was 273.3 MB in the beginning and 223.0 MB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.0 GB. [2021-04-28 16:03:29,702 INFO L168 Benchmark]: TraceAbstraction took 30113.10 ms. Allocated memory was 306.2 MB in the beginning and 700.4 MB in the end (delta: 394.3 MB). Free memory was 222.0 MB in the beginning and 322.0 MB in the end (delta: -100.0 MB). Peak memory consumption was 295.3 MB. Max. memory is 16.0 GB. [2021-04-28 16:03:29,704 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 306.2 MB. Free memory is still 274.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 881.56 ms. Allocated memory is still 306.2 MB. Free memory was 276.9 MB in the beginning and 276.5 MB in the end (delta: 490.1 kB). Peak memory consumption was 24.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 98.22 ms. Allocated memory is still 306.2 MB. Free memory was 276.5 MB in the beginning and 274.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 66.72 ms. Allocated memory is still 306.2 MB. Free memory was 274.4 MB in the beginning and 273.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 999.73 ms. Allocated memory is still 306.2 MB. Free memory was 273.3 MB in the beginning and 223.0 MB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 30113.10 ms. Allocated memory was 306.2 MB in the beginning and 700.4 MB in the end (delta: 394.3 MB). Free memory was 222.0 MB in the beginning and 322.0 MB in the end (delta: -100.0 MB). Peak memory consumption was 295.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10183.2ms, 78 PlacesBefore, 101 PlacesAfterwards, 76 TransitionsBefore, 97 TransitionsAfterwards, 2186 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 118 TotalNumberOfCompositions, 14889 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4567, positive: 4272, positive conditional: 4272, positive unconditional: 0, negative: 295, negative conditional: 295, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1908, positive: 1845, positive conditional: 0, positive unconditional: 1845, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1908, positive: 1845, positive conditional: 0, positive unconditional: 1845, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1908, positive: 1783, positive conditional: 0, positive unconditional: 1783, negative: 125, negative conditional: 0, negative unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 125, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 494, positive: 176, positive conditional: 0, positive unconditional: 176, negative: 318, negative conditional: 0, negative unconditional: 318, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4567, positive: 2427, positive conditional: 2427, positive unconditional: 0, negative: 232, negative conditional: 232, negative unconditional: 0, unknown: 1908, unknown conditional: 1908, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1788, Positive cache size: 1725, Positive conditional cache size: 1725, Positive unconditional cache size: 0, Negative cache size: 63, Negative conditional cache size: 63, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 124.9ms, 91 PlacesBefore, 67 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 2012 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1262 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 457, positive: 419, positive conditional: 419, positive unconditional: 0, negative: 38, negative conditional: 38, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 88, positive: 86, positive conditional: 12, positive unconditional: 74, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 88, positive: 86, positive conditional: 12, positive unconditional: 74, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 88, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 2, positive unconditional: 8, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, positive: 38, positive conditional: 9, positive unconditional: 29, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 457, positive: 333, positive conditional: 333, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 88, unknown conditional: 88, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1876, Positive cache size: 1811, Positive conditional cache size: 1811, Positive unconditional cache size: 0, Negative cache size: 65, Negative conditional cache size: 65, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 257.2ms, 81 PlacesBefore, 81 PlacesAfterwards, 111 TransitionsBefore, 111 TransitionsAfterwards, 2482 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 108 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 6, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 6, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 32, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1883, Positive cache size: 1818, Positive conditional cache size: 1818, Positive unconditional cache size: 0, Negative cache size: 65, Negative conditional cache size: 65, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8565.5ms, 101 PlacesBefore, 121 PlacesAfterwards, 100 TransitionsBefore, 117 TransitionsAfterwards, 4758 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 4 ChoiceCompositions, 114 TotalNumberOfCompositions, 35186 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10718, positive: 10230, positive conditional: 10230, positive unconditional: 0, negative: 488, negative conditional: 488, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4637, positive: 4546, positive conditional: 0, positive unconditional: 4546, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4637, positive: 4546, positive conditional: 0, positive unconditional: 4546, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4637, positive: 4394, positive conditional: 0, positive unconditional: 4394, negative: 243, negative conditional: 0, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 243, positive: 152, positive conditional: 0, positive unconditional: 152, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 763, positive: 450, positive conditional: 0, positive unconditional: 450, negative: 314, negative conditional: 0, negative unconditional: 314, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10718, positive: 5684, positive conditional: 5684, positive unconditional: 0, negative: 397, negative conditional: 397, negative unconditional: 0, unknown: 4637, unknown conditional: 4637, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4455, Positive cache size: 4365, Positive conditional cache size: 4365, Positive unconditional cache size: 0, Negative cache size: 90, Negative conditional cache size: 90, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 284.0ms, 109 PlacesBefore, 87 PlacesAfterwards, 80 TransitionsBefore, 80 TransitionsAfterwards, 3970 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 6858 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1600, positive: 1472, positive conditional: 1472, positive unconditional: 0, negative: 128, negative conditional: 128, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 225, positive: 204, positive conditional: 25, positive unconditional: 179, negative: 21, negative conditional: 1, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 225, positive: 204, positive conditional: 25, positive unconditional: 179, negative: 21, negative conditional: 1, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 225, positive: 198, positive conditional: 0, positive unconditional: 198, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 21, negative conditional: 1, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 96, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 77, negative conditional: 3, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1600, positive: 1268, positive conditional: 1268, positive unconditional: 0, negative: 107, negative conditional: 107, negative unconditional: 0, unknown: 225, unknown conditional: 225, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4680, Positive cache size: 4569, Positive conditional cache size: 4569, Positive unconditional cache size: 0, Negative cache size: 111, Negative conditional cache size: 111, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1225.2ms, 87 PlacesBefore, 87 PlacesAfterwards, 80 TransitionsBefore, 80 TransitionsAfterwards, 1700 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 16 TotalNumberOfCompositions, 228 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 205, positive: 203, positive conditional: 203, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 70, positive: 68, positive conditional: 23, positive unconditional: 45, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 70, positive: 68, positive conditional: 23, positive unconditional: 45, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 70, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 205, positive: 135, positive conditional: 135, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 70, unknown conditional: 70, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4750, Positive cache size: 4637, Positive conditional cache size: 4637, Positive unconditional cache size: 0, Negative cache size: 113, Negative conditional cache size: 113, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4766.5ms, 90 PlacesBefore, 90 PlacesAfterwards, 88 TransitionsBefore, 88 TransitionsAfterwards, 1878 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 37 TotalNumberOfCompositions, 467 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 467, positive: 467, positive conditional: 467, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 84, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 84, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 84, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 467, positive: 383, positive conditional: 383, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 84, unknown conditional: 84, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4834, Positive cache size: 4721, Positive conditional cache size: 4721, Positive unconditional cache size: 0, Negative cache size: 113, Negative conditional cache size: 113, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 726.7ms, 92 PlacesBefore, 92 PlacesAfterwards, 96 TransitionsBefore, 96 TransitionsAfterwards, 1850 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4834, Positive cache size: 4721, Positive conditional cache size: 4721, Positive unconditional cache size: 0, Negative cache size: 113, Negative conditional cache size: 113, Negative unconditional cache size: 0 - CounterExampleResult [Line: 716]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L689] 0 int g0 = 0,g1 = 0,x = 0; [L690] 0 _Bool lock = 0; [L691] 0 int mutex = 0; [L735] 0 pthread_t t; [L736] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [g0=0, g1=0, lock=0, mutex=0, x=0] [L728] CALL 1 __VERIFIER_atomic_acquire() [L694] CALL 1 assume_abort_if_not(mutex==0) [L4] COND FALSE 1 !(!cond) [L694] RET 1 assume_abort_if_not(mutex==0) [L695] 1 mutex = 1 [L728] RET 1 __VERIFIER_atomic_acquire() [L729] 1 g0=1 VAL [g0=1, g1=0, lock=0, mutex=1, x=0] [L737] FCALL, FORK 0 pthread_create(&t, 0, thr2, 0) VAL [g0=1, g1=0, lock=0, mutex=1, x=0] [L738] COND TRUE 0 1 [L740] FCALL, FORK 0 pthread_create(&t, 0, thr3, 0) VAL [g0=1, g1=0, lock=0, mutex=1, x=0] [L729] 1 g1=1 [L730] CALL 1 __VERIFIER_atomic_release() [L699] CALL 1 assume_abort_if_not(mutex==1) [L4] COND FALSE 1 !(!cond) [L699] RET 1 assume_abort_if_not(mutex==1) [L700] 1 mutex = 0 [L730] RET 1 __VERIFIER_atomic_release() [L704] CALL 3 __VERIFIER_atomic_acquire() [L694] CALL 3 assume_abort_if_not(mutex==0) [L4] COND FALSE 3 !(!cond) [L694] RET 3 assume_abort_if_not(mutex==0) [L695] 3 mutex = 1 [L704] RET 3 __VERIFIER_atomic_acquire() [L705] COND TRUE 3 __VERIFIER_nondet_int() [L707] 3 g0=0 [L708] 3 g1=0 [L709] 3 lock=0 [L711] CALL 3 __VERIFIER_atomic_release() [L699] CALL 3 assume_abort_if_not(mutex==1) [L4] COND FALSE 3 !(!cond) [L699] RET 3 assume_abort_if_not(mutex==1) [L700] 3 mutex = 0 [L711] RET 3 __VERIFIER_atomic_release() [L731] 1 lock=1 [L732] 1 return 0; [L712] CALL 3 __VERIFIER_atomic_acquire() [L694] CALL 3 assume_abort_if_not(mutex==0) [L4] COND FALSE 3 !(!cond) [L694] RET 3 assume_abort_if_not(mutex==0) [L695] 3 mutex = 1 [L712] RET 3 __VERIFIER_atomic_acquire() [L713] COND TRUE 3 \read(lock) [L715] 3 x=1 [L716] COND TRUE 3 !(g0==1 && g1==1) [L716] 3 reach_error() VAL [g0=0, g1=0, lock=1, mutex=1, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 71 locations, 2 error locations. Started 2 CEGAR loops. EmptinessCheckTime: 17.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 29868.3ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2711.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18913.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 137 SDtfs, 80 SDslu, 24 SDs, 0 SdLazy, 221 SolverSat, 191 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 358.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 113.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=629occurred in iteration=2, InterpolantAutomatonStates: 26, 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: 17.5ms SsaConstructionTime, 159.0ms SatisfiabilityAnalysisTime, 333.9ms InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...