/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 13:01:47,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 13:01:47,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 13:01:47,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 13:01:47,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 13:01:47,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 13:01:47,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 13:01:47,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 13:01:47,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 13:01:47,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 13:01:47,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 13:01:47,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 13:01:47,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 13:01:47,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 13:01:47,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 13:01:48,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 13:01:48,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 13:01:48,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 13:01:48,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 13:01:48,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 13:01:48,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 13:01:48,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 13:01:48,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 13:01:48,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 13:01:48,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 13:01:48,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 13:01:48,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 13:01:48,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 13:01:48,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 13:01:48,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 13:01:48,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 13:01:48,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 13:01:48,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 13:01:48,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 13:01:48,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 13:01:48,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 13:01:48,031 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-RepeatedSemanticLbe.epf [2021-03-25 13:01:48,051 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 13:01:48,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 13:01:48,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 13:01:48,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 13:01:48,053 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 13:01:48,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 13:01:48,053 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 13:01:48,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 13:01:48,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 13:01:48,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 13:01:48,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 13:01:48,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 13:01:48,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 13:01:48,054 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 13:01:48,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 13:01:48,054 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 13:01:48,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 13:01:48,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 13:01:48,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 13:01:48,055 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 13:01:48,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 13:01:48,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 13:01:48,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 13:01:48,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 13:01:48,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 13:01:48,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 13:01:48,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 13:01:48,056 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 13:01:48,056 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 13:01:48,056 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 13:01:48,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 13:01:48,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 13:01:48,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 13:01:48,513 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 13:01:48,514 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 13:01:48,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2021-03-25 13:01:48,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e48a0c8a2/359d20ab78504e76aaf5b28ede456310/FLAG3f14e66b2 [2021-03-25 13:01:49,271 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 13:01:49,271 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2021-03-25 13:01:49,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e48a0c8a2/359d20ab78504e76aaf5b28ede456310/FLAG3f14e66b2 [2021-03-25 13:01:49,296 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e48a0c8a2/359d20ab78504e76aaf5b28ede456310 [2021-03-25 13:01:49,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 13:01:49,300 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 13:01:49,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 13:01:49,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 13:01:49,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 13:01:49,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 01:01:49" (1/1) ... [2021-03-25 13:01:49,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6be7b0a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:01:49, skipping insertion in model container [2021-03-25 13:01:49,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 01:01:49" (1/1) ... [2021-03-25 13:01:49,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 13:01:49,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 13:01:49,585 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 13:01:49,773 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-atomic/lamport.i[32156,32169] [2021-03-25 13:01:49,780 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-atomic/lamport.i[34083,34096] [2021-03-25 13:01:49,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 13:01:49,790 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 13:01:49,803 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 13:01:49,821 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-atomic/lamport.i[32156,32169] [2021-03-25 13:01:49,825 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-atomic/lamport.i[34083,34096] [2021-03-25 13:01:49,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 13:01:49,877 INFO L208 MainTranslator]: Completed translation [2021-03-25 13:01:49,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:01:49 WrapperNode [2021-03-25 13:01:49,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 13:01:49,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 13:01:49,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 13:01:49,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 13:01:49,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:01:49" (1/1) ... [2021-03-25 13:01:49,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:01:49" (1/1) ... [2021-03-25 13:01:49,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 13:01:49,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 13:01:49,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 13:01:49,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 13:01:49,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:01:49" (1/1) ... [2021-03-25 13:01:49,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:01:49" (1/1) ... [2021-03-25 13:01:49,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:01:49" (1/1) ... [2021-03-25 13:01:49,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:01:49" (1/1) ... [2021-03-25 13:01:49,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:01:49" (1/1) ... [2021-03-25 13:01:49,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:01:49" (1/1) ... [2021-03-25 13:01:49,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:01:49" (1/1) ... [2021-03-25 13:01:49,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 13:01:49,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 13:01:49,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 13:01:49,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 13:01:49,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:01:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 13:01:49,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-25 13:01:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-03-25 13:01:49,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-03-25 13:01:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-25 13:01:49,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-25 13:01:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 13:01:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 13:01:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 13:01:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 13:01:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 13:01:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 13:01:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 13:01:49,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 13:01:49,997 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 13:01:50,511 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 13:01:50,512 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-03-25 13:01:50,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 01:01:50 BoogieIcfgContainer [2021-03-25 13:01:50,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 13:01:50,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 13:01:50,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 13:01:50,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 13:01:50,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 01:01:49" (1/3) ... [2021-03-25 13:01:50,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581f4825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 01:01:50, skipping insertion in model container [2021-03-25 13:01:50,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 01:01:49" (2/3) ... [2021-03-25 13:01:50,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581f4825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 01:01:50, skipping insertion in model container [2021-03-25 13:01:50,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 01:01:50" (3/3) ... [2021-03-25 13:01:50,523 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.i [2021-03-25 13:01:50,528 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 13:01:50,532 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 13:01:50,533 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 13:01:50,574 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,574 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,575 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,575 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,575 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,576 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,576 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,576 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,577 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,577 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,580 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,580 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,580 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,582 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,582 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,582 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,584 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,584 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,584 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,585 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,585 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,585 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,585 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,586 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,586 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,586 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,586 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,586 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,586 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,586 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,587 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,587 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,587 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,588 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,588 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,588 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,588 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,589 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,589 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,589 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,589 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,589 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,590 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,590 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,590 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,590 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,590 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,590 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,590 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,591 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,591 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,591 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,591 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,591 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,594 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,594 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,594 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,595 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,595 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,595 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,595 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,595 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,595 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,595 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,596 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,596 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,596 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,596 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,597 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,597 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,598 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,598 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,598 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,598 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,600 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,600 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,600 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,600 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,600 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,600 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,601 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,601 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,603 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,609 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,618 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,618 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,618 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,618 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,618 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,619 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,619 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 13:01:50,626 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-25 13:01:50,643 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-25 13:01:50,671 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 13:01:50,671 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 13:01:50,671 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 13:01:50,671 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 13:01:50,671 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 13:01:50,671 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 13:01:50,671 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 13:01:50,672 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 13:01:50,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 125 transitions, 272 flow [2021-03-25 13:01:50,745 INFO L129 PetriNetUnfolder]: 25/125 cut-off events. [2021-03-25 13:01:50,746 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 13:01:50,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 125 events. 25/125 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 280 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 97. Up to 5 conditions per place. [2021-03-25 13:01:50,762 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 125 transitions, 272 flow [2021-03-25 13:01:50,767 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 113 transitions, 238 flow [2021-03-25 13:01:50,768 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:01:50,777 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 113 transitions, 238 flow [2021-03-25 13:01:50,779 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 113 transitions, 238 flow [2021-03-25 13:01:50,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 113 transitions, 238 flow [2021-03-25 13:01:50,797 INFO L129 PetriNetUnfolder]: 24/115 cut-off events. [2021-03-25 13:01:50,797 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 13:01:50,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 115 events. 24/115 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 276 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 97. Up to 5 conditions per place. [2021-03-25 13:01:50,802 INFO L142 LiptonReduction]: Number of co-enabled transitions 4816 [2021-03-25 13:01:52,307 INFO L154 LiptonReduction]: Checked pairs total: 2500 [2021-03-25 13:01:52,308 INFO L156 LiptonReduction]: Total number of compositions: 49 [2021-03-25 13:01:52,309 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1542 [2021-03-25 13:01:52,317 INFO L129 PetriNetUnfolder]: 1/12 cut-off events. [2021-03-25 13:01:52,317 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 13:01:52,317 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:01:52,318 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:01:52,318 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 13:01:52,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:01:52,322 INFO L82 PathProgramCache]: Analyzing trace with hash -328317108, now seen corresponding path program 1 times [2021-03-25 13:01:52,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:01:52,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654434108] [2021-03-25 13:01:52,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:01:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:01:52,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:52,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:52,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:52,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:52,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:01:52,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654434108] [2021-03-25 13:01:52,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:01:52,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 13:01:52,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383428183] [2021-03-25 13:01:52,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-25 13:01:52,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:01:52,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-25 13:01:52,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-25 13:01:52,476 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 174 [2021-03-25 13:01:52,478 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 77 transitions, 166 flow. Second operand has 2 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:52,478 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:01:52,478 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 174 [2021-03-25 13:01:52,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:01:52,491 INFO L129 PetriNetUnfolder]: 12/69 cut-off events. [2021-03-25 13:01:52,492 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 13:01:52,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 69 events. 12/69 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 138 event pairs, 0 based on Foata normal form. 7/62 useless extension candidates. Maximal degree in co-relation 75. Up to 3 conditions per place. [2021-03-25 13:01:52,494 INFO L132 encePairwiseOnDemand]: 167/174 looper letters, 0 selfloop transitions, 0 changer transitions 0/68 dead transitions. [2021-03-25 13:01:52,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 68 transitions, 148 flow [2021-03-25 13:01:52,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-25 13:01:52,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-25 13:01:52,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 313 transitions. [2021-03-25 13:01:52,504 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8994252873563219 [2021-03-25 13:01:52,505 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 313 transitions. [2021-03-25 13:01:52,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 313 transitions. [2021-03-25 13:01:52,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:01:52,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 313 transitions. [2021-03-25 13:01:52,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 156.5) internal successors, (313), 2 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:52,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:52,517 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:52,518 INFO L185 Difference]: Start difference. First operand has 64 places, 77 transitions, 166 flow. Second operand 2 states and 313 transitions. [2021-03-25 13:01:52,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 68 transitions, 148 flow [2021-03-25 13:01:52,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 68 transitions, 140 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 13:01:52,523 INFO L241 Difference]: Finished difference. Result has 59 places, 68 transitions, 140 flow [2021-03-25 13:01:52,524 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=140, PETRI_PLACES=59, PETRI_TRANSITIONS=68} [2021-03-25 13:01:52,525 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, -5 predicate places. [2021-03-25 13:01:52,525 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:01:52,525 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 68 transitions, 140 flow [2021-03-25 13:01:52,526 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 68 transitions, 140 flow [2021-03-25 13:01:52,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 68 transitions, 140 flow [2021-03-25 13:01:52,532 INFO L129 PetriNetUnfolder]: 12/69 cut-off events. [2021-03-25 13:01:52,533 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 13:01:52,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 69 events. 12/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 144 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 58. Up to 3 conditions per place. [2021-03-25 13:01:52,534 INFO L142 LiptonReduction]: Number of co-enabled transitions 2146 [2021-03-25 13:01:52,967 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-03-25 13:01:53,235 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-03-25 13:01:53,330 INFO L154 LiptonReduction]: Checked pairs total: 1320 [2021-03-25 13:01:53,331 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-25 13:01:53,331 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 806 [2021-03-25 13:01:53,332 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 66 transitions, 136 flow [2021-03-25 13:01:53,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:53,333 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:01:53,333 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:01:53,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 13:01:53,333 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 13:01:53,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:01:53,334 INFO L82 PathProgramCache]: Analyzing trace with hash 64287001, now seen corresponding path program 1 times [2021-03-25 13:01:53,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:01:53,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406645568] [2021-03-25 13:01:53,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:01:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:01:53,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:53,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:53,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:53,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:01:53,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:01:53,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406645568] [2021-03-25 13:01:53,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:01:53,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 13:01:53,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836048920] [2021-03-25 13:01:53,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 13:01:53,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:01:53,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 13:01:53,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 13:01:53,391 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 184 [2021-03-25 13:01:53,391 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 66 transitions, 136 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) [2021-03-25 13:01:53,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:01:53,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 184 [2021-03-25 13:01:53,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:01:53,424 INFO L129 PetriNetUnfolder]: 24/113 cut-off events. [2021-03-25 13:01:53,424 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 13:01:53,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 113 events. 24/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 345 event pairs, 2 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 128. Up to 21 conditions per place. [2021-03-25 13:01:53,426 INFO L132 encePairwiseOnDemand]: 177/184 looper letters, 8 selfloop transitions, 5 changer transitions 0/70 dead transitions. [2021-03-25 13:01:53,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 70 transitions, 170 flow [2021-03-25 13:01:53,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 13:01:53,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 13:01:53,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2021-03-25 13:01:53,434 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8152173913043478 [2021-03-25 13:01:53,434 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 450 transitions. [2021-03-25 13:01:53,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 450 transitions. [2021-03-25 13:01:53,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:01:53,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 450 transitions. [2021-03-25 13:01:53,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:53,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:53,443 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:53,443 INFO L185 Difference]: Start difference. First operand has 56 places, 66 transitions, 136 flow. Second operand 3 states and 450 transitions. [2021-03-25 13:01:53,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 70 transitions, 170 flow [2021-03-25 13:01:53,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 70 transitions, 170 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 13:01:53,447 INFO L241 Difference]: Finished difference. Result has 60 places, 68 transitions, 168 flow [2021-03-25 13:01:53,448 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=60, PETRI_TRANSITIONS=68} [2021-03-25 13:01:53,449 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, -4 predicate places. [2021-03-25 13:01:53,449 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:01:53,449 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 68 transitions, 168 flow [2021-03-25 13:01:53,450 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 68 transitions, 168 flow [2021-03-25 13:01:53,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 68 transitions, 168 flow [2021-03-25 13:01:53,461 INFO L129 PetriNetUnfolder]: 16/91 cut-off events. [2021-03-25 13:01:53,461 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-25 13:01:53,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 91 events. 16/91 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 227 event pairs, 1 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 99. Up to 10 conditions per place. [2021-03-25 13:01:53,467 INFO L142 LiptonReduction]: Number of co-enabled transitions 2082 [2021-03-25 13:01:53,537 INFO L154 LiptonReduction]: Checked pairs total: 1559 [2021-03-25 13:01:53,537 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 13:01:53,538 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 88 [2021-03-25 13:01:53,538 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 64 transitions, 160 flow [2021-03-25 13:01:53,539 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) [2021-03-25 13:01:53,539 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:01:53,539 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:01:53,539 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 13:01:53,539 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 13:01:53,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:01:53,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1212895790, now seen corresponding path program 1 times [2021-03-25 13:01:53,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:01:53,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027376648] [2021-03-25 13:01:53,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:01:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:01:53,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:53,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:53,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:53,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 13:01:53,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:01:53,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027376648] [2021-03-25 13:01:53,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:01:53,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 13:01:53,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648559225] [2021-03-25 13:01:53,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 13:01:53,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:01:53,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 13:01:53,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 13:01:53,581 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 188 [2021-03-25 13:01:53,582 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 64 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:53,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:01:53,582 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 188 [2021-03-25 13:01:53,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:01:53,604 INFO L129 PetriNetUnfolder]: 18/95 cut-off events. [2021-03-25 13:01:53,605 INFO L130 PetriNetUnfolder]: For 25/33 co-relation queries the response was YES. [2021-03-25 13:01:53,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 95 events. 18/95 cut-off events. For 25/33 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 274 event pairs, 2 based on Foata normal form. 8/91 useless extension candidates. Maximal degree in co-relation 130. Up to 14 conditions per place. [2021-03-25 13:01:53,606 INFO L132 encePairwiseOnDemand]: 182/188 looper letters, 7 selfloop transitions, 4 changer transitions 0/64 dead transitions. [2021-03-25 13:01:53,606 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 64 transitions, 182 flow [2021-03-25 13:01:53,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 13:01:53,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 13:01:53,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2021-03-25 13:01:53,608 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8156028368794326 [2021-03-25 13:01:53,608 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 460 transitions. [2021-03-25 13:01:53,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 460 transitions. [2021-03-25 13:01:53,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:01:53,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 460 transitions. [2021-03-25 13:01:53,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:53,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:53,612 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:53,612 INFO L185 Difference]: Start difference. First operand has 56 places, 64 transitions, 160 flow. Second operand 3 states and 460 transitions. [2021-03-25 13:01:53,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 64 transitions, 182 flow [2021-03-25 13:01:53,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 64 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 13:01:53,615 INFO L241 Difference]: Finished difference. Result has 57 places, 64 transitions, 166 flow [2021-03-25 13:01:53,615 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=57, PETRI_TRANSITIONS=64} [2021-03-25 13:01:53,615 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, -7 predicate places. [2021-03-25 13:01:53,615 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:01:53,615 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 64 transitions, 166 flow [2021-03-25 13:01:53,616 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 64 transitions, 166 flow [2021-03-25 13:01:53,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 64 transitions, 166 flow [2021-03-25 13:01:53,623 INFO L129 PetriNetUnfolder]: 18/95 cut-off events. [2021-03-25 13:01:53,623 INFO L130 PetriNetUnfolder]: For 19/20 co-relation queries the response was YES. [2021-03-25 13:01:53,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 95 events. 18/95 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 281 event pairs, 2 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 116. Up to 13 conditions per place. [2021-03-25 13:01:53,625 INFO L142 LiptonReduction]: Number of co-enabled transitions 1774 [2021-03-25 13:01:53,632 INFO L154 LiptonReduction]: Checked pairs total: 426 [2021-03-25 13:01:53,632 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 13:01:53,632 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-25 13:01:53,633 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 64 transitions, 166 flow [2021-03-25 13:01:53,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:53,634 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:01:53,634 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:01:53,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 13:01:53,634 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 13:01:53,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:01:53,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1142588846, now seen corresponding path program 1 times [2021-03-25 13:01:53,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:01:53,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013705405] [2021-03-25 13:01:53,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:01:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:01:53,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:53,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:53,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:53,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:01:53,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:53,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:01:53,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:53,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:53,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:01:53,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013705405] [2021-03-25 13:01:53,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:01:53,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:01:53,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993095341] [2021-03-25 13:01:53,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 13:01:53,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:01:53,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 13:01:53,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 13:01:53,687 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 188 [2021-03-25 13:01:53,687 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 64 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 126.75) internal successors, (507), 4 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:53,688 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:01:53,688 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 188 [2021-03-25 13:01:53,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:01:53,910 INFO L129 PetriNetUnfolder]: 357/854 cut-off events. [2021-03-25 13:01:53,911 INFO L130 PetriNetUnfolder]: For 141/144 co-relation queries the response was YES. [2021-03-25 13:01:53,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1507 conditions, 854 events. 357/854 cut-off events. For 141/144 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4913 event pairs, 45 based on Foata normal form. 9/793 useless extension candidates. Maximal degree in co-relation 1454. Up to 228 conditions per place. [2021-03-25 13:01:53,921 INFO L132 encePairwiseOnDemand]: 174/188 looper letters, 45 selfloop transitions, 5 changer transitions 18/107 dead transitions. [2021-03-25 13:01:53,921 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 107 transitions, 395 flow [2021-03-25 13:01:53,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 13:01:53,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 13:01:53,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 699 transitions. [2021-03-25 13:01:53,926 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7436170212765958 [2021-03-25 13:01:53,927 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 699 transitions. [2021-03-25 13:01:53,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 699 transitions. [2021-03-25 13:01:53,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:01:53,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 699 transitions. [2021-03-25 13:01:53,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 139.8) internal successors, (699), 5 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:53,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:53,934 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:53,934 INFO L185 Difference]: Start difference. First operand has 57 places, 64 transitions, 166 flow. Second operand 5 states and 699 transitions. [2021-03-25 13:01:53,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 107 transitions, 395 flow [2021-03-25 13:01:53,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 107 transitions, 390 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 13:01:53,944 INFO L241 Difference]: Finished difference. Result has 64 places, 69 transitions, 240 flow [2021-03-25 13:01:53,944 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=240, PETRI_PLACES=64, PETRI_TRANSITIONS=69} [2021-03-25 13:01:53,945 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 0 predicate places. [2021-03-25 13:01:53,945 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:01:53,945 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 69 transitions, 240 flow [2021-03-25 13:01:53,946 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 69 transitions, 240 flow [2021-03-25 13:01:53,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 69 transitions, 240 flow [2021-03-25 13:01:53,982 INFO L129 PetriNetUnfolder]: 101/348 cut-off events. [2021-03-25 13:01:53,982 INFO L130 PetriNetUnfolder]: For 100/104 co-relation queries the response was YES. [2021-03-25 13:01:53,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 348 events. 101/348 cut-off events. For 100/104 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1696 event pairs, 10 based on Foata normal form. 0/304 useless extension candidates. Maximal degree in co-relation 580. Up to 56 conditions per place. [2021-03-25 13:01:53,988 INFO L142 LiptonReduction]: Number of co-enabled transitions 1956 [2021-03-25 13:01:54,001 INFO L154 LiptonReduction]: Checked pairs total: 160 [2021-03-25 13:01:54,002 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 13:01:54,002 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-25 13:01:54,004 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 69 transitions, 240 flow [2021-03-25 13:01:54,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 126.75) internal successors, (507), 4 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:54,005 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:01:54,005 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:01:54,005 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 13:01:54,006 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 13:01:54,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:01:54,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1116846970, now seen corresponding path program 2 times [2021-03-25 13:01:54,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:01:54,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151664915] [2021-03-25 13:01:54,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:01:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:01:54,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:54,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:54,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:54,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:01:54,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:54,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:01:54,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:54,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:54,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:01:54,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151664915] [2021-03-25 13:01:54,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:01:54,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:01:54,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996808008] [2021-03-25 13:01:54,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 13:01:54,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:01:54,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 13:01:54,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 13:01:54,091 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 188 [2021-03-25 13:01:54,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 69 transitions, 240 flow. Second operand has 4 states, 4 states have (on average 154.75) internal successors, (619), 4 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:54,092 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:01:54,092 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 188 [2021-03-25 13:01:54,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:01:54,244 INFO L129 PetriNetUnfolder]: 326/1128 cut-off events. [2021-03-25 13:01:54,244 INFO L130 PetriNetUnfolder]: For 307/335 co-relation queries the response was YES. [2021-03-25 13:01:54,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2077 conditions, 1128 events. 326/1128 cut-off events. For 307/335 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 7620 event pairs, 27 based on Foata normal form. 15/1022 useless extension candidates. Maximal degree in co-relation 1935. Up to 190 conditions per place. [2021-03-25 13:01:54,254 INFO L132 encePairwiseOnDemand]: 184/188 looper letters, 18 selfloop transitions, 6 changer transitions 0/85 dead transitions. [2021-03-25 13:01:54,255 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 85 transitions, 325 flow [2021-03-25 13:01:54,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 13:01:54,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 13:01:54,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 790 transitions. [2021-03-25 13:01:54,257 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8404255319148937 [2021-03-25 13:01:54,257 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 790 transitions. [2021-03-25 13:01:54,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 790 transitions. [2021-03-25 13:01:54,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:01:54,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 790 transitions. [2021-03-25 13:01:54,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 158.0) internal successors, (790), 5 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:54,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:54,262 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:54,263 INFO L185 Difference]: Start difference. First operand has 63 places, 69 transitions, 240 flow. Second operand 5 states and 790 transitions. [2021-03-25 13:01:54,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 85 transitions, 325 flow [2021-03-25 13:01:54,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 85 transitions, 309 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-03-25 13:01:54,269 INFO L241 Difference]: Finished difference. Result has 70 places, 75 transitions, 274 flow [2021-03-25 13:01:54,270 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=274, PETRI_PLACES=70, PETRI_TRANSITIONS=75} [2021-03-25 13:01:54,270 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 6 predicate places. [2021-03-25 13:01:54,270 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:01:54,270 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 75 transitions, 274 flow [2021-03-25 13:01:54,273 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 75 transitions, 274 flow [2021-03-25 13:01:54,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 75 transitions, 274 flow [2021-03-25 13:01:54,349 INFO L129 PetriNetUnfolder]: 258/932 cut-off events. [2021-03-25 13:01:54,349 INFO L130 PetriNetUnfolder]: For 298/313 co-relation queries the response was YES. [2021-03-25 13:01:54,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1705 conditions, 932 events. 258/932 cut-off events. For 298/313 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6195 event pairs, 24 based on Foata normal form. 5/835 useless extension candidates. Maximal degree in co-relation 1629. Up to 162 conditions per place. [2021-03-25 13:01:54,363 INFO L142 LiptonReduction]: Number of co-enabled transitions 2252 [2021-03-25 13:01:54,518 INFO L154 LiptonReduction]: Checked pairs total: 169 [2021-03-25 13:01:54,518 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 13:01:54,518 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 248 [2021-03-25 13:01:54,520 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 74 transitions, 272 flow [2021-03-25 13:01:54,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 154.75) internal successors, (619), 4 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:54,521 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:01:54,521 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:01:54,521 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 13:01:54,521 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 13:01:54,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:01:54,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1619709648, now seen corresponding path program 3 times [2021-03-25 13:01:54,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:01:54,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965526739] [2021-03-25 13:01:54,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:01:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:01:54,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:54,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:54,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:54,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:01:54,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:54,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:01:54,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:54,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:54,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:01:54,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965526739] [2021-03-25 13:01:54,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:01:54,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:01:54,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451961799] [2021-03-25 13:01:54,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 13:01:54,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:01:54,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 13:01:54,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 13:01:54,588 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 189 [2021-03-25 13:01:54,588 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 74 transitions, 272 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:54,589 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:01:54,589 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 189 [2021-03-25 13:01:54,589 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:01:54,954 INFO L129 PetriNetUnfolder]: 963/2559 cut-off events. [2021-03-25 13:01:54,954 INFO L130 PetriNetUnfolder]: For 1238/1275 co-relation queries the response was YES. [2021-03-25 13:01:54,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5701 conditions, 2559 events. 963/2559 cut-off events. For 1238/1275 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 18955 event pairs, 113 based on Foata normal form. 36/2435 useless extension candidates. Maximal degree in co-relation 3764. Up to 704 conditions per place. [2021-03-25 13:01:54,974 INFO L132 encePairwiseOnDemand]: 175/189 looper letters, 48 selfloop transitions, 10 changer transitions 14/117 dead transitions. [2021-03-25 13:01:54,974 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 117 transitions, 547 flow [2021-03-25 13:01:54,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 13:01:54,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 13:01:54,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 705 transitions. [2021-03-25 13:01:54,976 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.746031746031746 [2021-03-25 13:01:54,976 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 705 transitions. [2021-03-25 13:01:54,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 705 transitions. [2021-03-25 13:01:54,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:01:54,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 705 transitions. [2021-03-25 13:01:54,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:54,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:54,981 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:54,982 INFO L185 Difference]: Start difference. First operand has 69 places, 74 transitions, 272 flow. Second operand 5 states and 705 transitions. [2021-03-25 13:01:54,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 117 transitions, 547 flow [2021-03-25 13:01:54,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 117 transitions, 547 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 13:01:54,990 INFO L241 Difference]: Finished difference. Result has 77 places, 81 transitions, 372 flow [2021-03-25 13:01:54,990 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=372, PETRI_PLACES=77, PETRI_TRANSITIONS=81} [2021-03-25 13:01:54,991 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 13 predicate places. [2021-03-25 13:01:54,991 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:01:54,991 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 81 transitions, 372 flow [2021-03-25 13:01:54,991 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 81 transitions, 372 flow [2021-03-25 13:01:54,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 81 transitions, 372 flow [2021-03-25 13:01:55,114 INFO L129 PetriNetUnfolder]: 369/1387 cut-off events. [2021-03-25 13:01:55,114 INFO L130 PetriNetUnfolder]: For 928/968 co-relation queries the response was YES. [2021-03-25 13:01:55,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3057 conditions, 1387 events. 369/1387 cut-off events. For 928/968 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 10142 event pairs, 35 based on Foata normal form. 6/1375 useless extension candidates. Maximal degree in co-relation 2937. Up to 280 conditions per place. [2021-03-25 13:01:55,137 INFO L142 LiptonReduction]: Number of co-enabled transitions 2428 [2021-03-25 13:01:55,311 INFO L154 LiptonReduction]: Checked pairs total: 79 [2021-03-25 13:01:55,312 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 13:01:55,312 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 321 [2021-03-25 13:01:55,316 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 81 transitions, 372 flow [2021-03-25 13:01:55,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:55,317 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:01:55,317 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:01:55,317 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 13:01:55,317 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 13:01:55,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:01:55,317 INFO L82 PathProgramCache]: Analyzing trace with hash -930026420, now seen corresponding path program 1 times [2021-03-25 13:01:55,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:01:55,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414738195] [2021-03-25 13:01:55,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:01:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:01:55,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:55,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:55,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:55,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:01:55,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:55,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:01:55,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:55,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:55,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:01:55,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414738195] [2021-03-25 13:01:55,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:01:55,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:01:55,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855935136] [2021-03-25 13:01:55,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 13:01:55,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:01:55,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 13:01:55,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 13:01:55,375 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 189 [2021-03-25 13:01:55,376 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 81 transitions, 372 flow. Second operand has 4 states, 4 states have (on average 155.75) internal successors, (623), 4 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:55,376 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:01:55,376 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 189 [2021-03-25 13:01:55,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:01:55,655 INFO L129 PetriNetUnfolder]: 625/2284 cut-off events. [2021-03-25 13:01:55,655 INFO L130 PetriNetUnfolder]: For 1950/2029 co-relation queries the response was YES. [2021-03-25 13:01:55,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5442 conditions, 2284 events. 625/2284 cut-off events. For 1950/2029 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 18079 event pairs, 44 based on Foata normal form. 54/2304 useless extension candidates. Maximal degree in co-relation 5283. Up to 409 conditions per place. [2021-03-25 13:01:55,678 INFO L132 encePairwiseOnDemand]: 185/189 looper letters, 24 selfloop transitions, 11 changer transitions 0/101 dead transitions. [2021-03-25 13:01:55,678 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 101 transitions, 540 flow [2021-03-25 13:01:55,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 13:01:55,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 13:01:55,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 794 transitions. [2021-03-25 13:01:55,681 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8402116402116402 [2021-03-25 13:01:55,681 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 794 transitions. [2021-03-25 13:01:55,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 794 transitions. [2021-03-25 13:01:55,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:01:55,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 794 transitions. [2021-03-25 13:01:55,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 158.8) internal successors, (794), 5 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:55,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:55,685 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:55,685 INFO L185 Difference]: Start difference. First operand has 76 places, 81 transitions, 372 flow. Second operand 5 states and 794 transitions. [2021-03-25 13:01:55,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 101 transitions, 540 flow [2021-03-25 13:01:55,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 101 transitions, 524 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-03-25 13:01:55,697 INFO L241 Difference]: Finished difference. Result has 83 places, 89 transitions, 452 flow [2021-03-25 13:01:55,698 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=452, PETRI_PLACES=83, PETRI_TRANSITIONS=89} [2021-03-25 13:01:55,698 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 19 predicate places. [2021-03-25 13:01:55,698 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:01:55,698 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 89 transitions, 452 flow [2021-03-25 13:01:55,698 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 89 transitions, 452 flow [2021-03-25 13:01:55,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 89 transitions, 452 flow [2021-03-25 13:01:55,889 INFO L129 PetriNetUnfolder]: 534/2076 cut-off events. [2021-03-25 13:01:55,889 INFO L130 PetriNetUnfolder]: For 1586/1640 co-relation queries the response was YES. [2021-03-25 13:01:55,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4601 conditions, 2076 events. 534/2076 cut-off events. For 1586/1640 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 16482 event pairs, 48 based on Foata normal form. 18/2069 useless extension candidates. Maximal degree in co-relation 4434. Up to 393 conditions per place. [2021-03-25 13:01:55,925 INFO L142 LiptonReduction]: Number of co-enabled transitions 2674 [2021-03-25 13:01:56,079 INFO L154 LiptonReduction]: Checked pairs total: 103 [2021-03-25 13:01:56,079 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 13:01:56,080 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 382 [2021-03-25 13:01:56,081 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 88 transitions, 450 flow [2021-03-25 13:01:56,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 155.75) internal successors, (623), 4 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:56,081 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:01:56,081 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:01:56,082 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 13:01:56,083 INFO L428 AbstractCegarLoop]: === Iteration 8 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 13:01:56,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:01:56,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1408560617, now seen corresponding path program 1 times [2021-03-25 13:01:56,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:01:56,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811984002] [2021-03-25 13:01:56,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:01:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:01:56,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:56,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:56,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:56,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:01:56,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:56,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 13:01:56,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:56,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:56,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:01:56,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811984002] [2021-03-25 13:01:56,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:01:56,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:01:56,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124417214] [2021-03-25 13:01:56,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 13:01:56,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:01:56,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 13:01:56,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 13:01:56,136 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 190 [2021-03-25 13:01:56,137 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 88 transitions, 450 flow. Second operand has 4 states, 4 states have (on average 149.25) internal successors, (597), 4 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:56,137 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:01:56,137 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 190 [2021-03-25 13:01:56,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:01:56,427 INFO L129 PetriNetUnfolder]: 571/2148 cut-off events. [2021-03-25 13:01:56,428 INFO L130 PetriNetUnfolder]: For 1473/1537 co-relation queries the response was YES. [2021-03-25 13:01:56,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4877 conditions, 2148 events. 571/2148 cut-off events. For 1473/1537 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 17446 event pairs, 48 based on Foata normal form. 78/2200 useless extension candidates. Maximal degree in co-relation 4721. Up to 436 conditions per place. [2021-03-25 13:01:56,446 INFO L132 encePairwiseOnDemand]: 181/190 looper letters, 10 selfloop transitions, 13 changer transitions 2/101 dead transitions. [2021-03-25 13:01:56,446 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 101 transitions, 536 flow [2021-03-25 13:01:56,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 13:01:56,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 13:01:56,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 765 transitions. [2021-03-25 13:01:56,449 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8052631578947368 [2021-03-25 13:01:56,449 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 765 transitions. [2021-03-25 13:01:56,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 765 transitions. [2021-03-25 13:01:56,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:01:56,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 765 transitions. [2021-03-25 13:01:56,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 153.0) internal successors, (765), 5 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:56,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:56,453 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:56,453 INFO L185 Difference]: Start difference. First operand has 82 places, 88 transitions, 450 flow. Second operand 5 states and 765 transitions. [2021-03-25 13:01:56,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 101 transitions, 536 flow [2021-03-25 13:01:56,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 101 transitions, 536 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 13:01:56,462 INFO L241 Difference]: Finished difference. Result has 89 places, 96 transitions, 533 flow [2021-03-25 13:01:56,462 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=533, PETRI_PLACES=89, PETRI_TRANSITIONS=96} [2021-03-25 13:01:56,462 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 25 predicate places. [2021-03-25 13:01:56,463 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:01:56,463 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 96 transitions, 533 flow [2021-03-25 13:01:56,463 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 96 transitions, 533 flow [2021-03-25 13:01:56,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 96 transitions, 533 flow [2021-03-25 13:01:56,626 INFO L129 PetriNetUnfolder]: 537/2073 cut-off events. [2021-03-25 13:01:56,626 INFO L130 PetriNetUnfolder]: For 1693/1755 co-relation queries the response was YES. [2021-03-25 13:01:56,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4973 conditions, 2073 events. 537/2073 cut-off events. For 1693/1755 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 16748 event pairs, 53 based on Foata normal form. 25/2075 useless extension candidates. Maximal degree in co-relation 4814. Up to 423 conditions per place. [2021-03-25 13:01:56,656 INFO L142 LiptonReduction]: Number of co-enabled transitions 2538 [2021-03-25 13:01:56,707 INFO L154 LiptonReduction]: Checked pairs total: 37 [2021-03-25 13:01:56,707 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 13:01:56,707 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 244 [2021-03-25 13:01:56,710 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 96 transitions, 533 flow [2021-03-25 13:01:56,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 149.25) internal successors, (597), 4 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:56,710 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 13:01:56,711 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 13:01:56,711 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 13:01:56,711 INFO L428 AbstractCegarLoop]: === Iteration 9 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 13:01:56,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 13:01:56,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1818368222, now seen corresponding path program 1 times [2021-03-25 13:01:56,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 13:01:56,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003123701] [2021-03-25 13:01:56,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 13:01:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 13:01:56,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:56,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:56,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:56,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 13:01:56,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:56,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 13:01:56,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 13:01:56,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 13:01:56,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 13:01:56,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003123701] [2021-03-25 13:01:56,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 13:01:56,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 13:01:56,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690752277] [2021-03-25 13:01:56,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 13:01:56,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 13:01:56,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 13:01:56,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 13:01:56,754 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 190 [2021-03-25 13:01:56,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 96 transitions, 533 flow. Second operand has 4 states, 4 states have (on average 150.25) internal successors, (601), 4 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:56,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 13:01:56,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 190 [2021-03-25 13:01:56,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 13:01:56,970 INFO L129 PetriNetUnfolder]: 489/1823 cut-off events. [2021-03-25 13:01:56,971 INFO L130 PetriNetUnfolder]: For 1414/1466 co-relation queries the response was YES. [2021-03-25 13:01:56,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4498 conditions, 1823 events. 489/1823 cut-off events. For 1414/1466 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 14039 event pairs, 35 based on Foata normal form. 70/1871 useless extension candidates. Maximal degree in co-relation 4267. Up to 311 conditions per place. [2021-03-25 13:01:56,984 INFO L132 encePairwiseOnDemand]: 181/190 looper letters, 0 selfloop transitions, 0 changer transitions 104/104 dead transitions. [2021-03-25 13:01:56,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 104 transitions, 584 flow [2021-03-25 13:01:56,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 13:01:56,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 13:01:56,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 771 transitions. [2021-03-25 13:01:56,987 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8115789473684211 [2021-03-25 13:01:56,987 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 771 transitions. [2021-03-25 13:01:56,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 771 transitions. [2021-03-25 13:01:56,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 13:01:56,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 771 transitions. [2021-03-25 13:01:57,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.2) internal successors, (771), 5 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:57,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:57,026 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:57,026 INFO L185 Difference]: Start difference. First operand has 89 places, 96 transitions, 533 flow. Second operand 5 states and 771 transitions. [2021-03-25 13:01:57,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 104 transitions, 584 flow [2021-03-25 13:01:57,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 104 transitions, 564 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-03-25 13:01:57,035 INFO L241 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2021-03-25 13:01:57,035 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2021-03-25 13:01:57,035 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 27 predicate places. [2021-03-25 13:01:57,036 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 13:01:57,036 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 0 transitions, 0 flow [2021-03-25 13:01:57,036 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 0 transitions, 0 flow [2021-03-25 13:01:57,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 13:01:57,036 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 13:01:57,037 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 13:01:57,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-25 13:01:57,037 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 13:01:57,037 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 13:01:57,037 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 13:01:57,037 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 13:01:57,038 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 13:01:57,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 150.25) internal successors, (601), 4 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 13:01:57,041 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 13:01:57,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 01:01:57 BasicIcfg [2021-03-25 13:01:57,049 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 13:01:57,055 INFO L168 Benchmark]: Toolchain (without parser) took 7750.04 ms. Allocated memory was 331.4 MB in the beginning and 398.5 MB in the end (delta: 67.1 MB). Free memory was 294.1 MB in the beginning and 361.7 MB in the end (delta: -67.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 13:01:57,055 INFO L168 Benchmark]: CDTParser took 1.00 ms. Allocated memory is still 331.4 MB. Free memory was 312.3 MB in the beginning and 312.2 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 13:01:57,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 577.05 ms. Allocated memory is still 331.4 MB. Free memory was 293.9 MB in the beginning and 294.3 MB in the end (delta: -399.7 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-03-25 13:01:57,056 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.02 ms. Allocated memory is still 331.4 MB. Free memory was 294.3 MB in the beginning and 292.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 13:01:57,056 INFO L168 Benchmark]: Boogie Preprocessor took 24.86 ms. Allocated memory is still 331.4 MB. Free memory was 292.2 MB in the beginning and 291.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 13:01:57,056 INFO L168 Benchmark]: RCFGBuilder took 575.34 ms. Allocated memory is still 331.4 MB. Free memory was 291.2 MB in the beginning and 261.8 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-03-25 13:01:57,057 INFO L168 Benchmark]: TraceAbstraction took 6532.95 ms. Allocated memory was 331.4 MB in the beginning and 398.5 MB in the end (delta: 67.1 MB). Free memory was 261.8 MB in the beginning and 361.7 MB in the end (delta: -99.9 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 13:01:57,058 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00 ms. Allocated memory is still 331.4 MB. Free memory was 312.3 MB in the beginning and 312.2 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 577.05 ms. Allocated memory is still 331.4 MB. Free memory was 293.9 MB in the beginning and 294.3 MB in the end (delta: -399.7 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 33.02 ms. Allocated memory is still 331.4 MB. Free memory was 294.3 MB in the beginning and 292.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 24.86 ms. Allocated memory is still 331.4 MB. Free memory was 292.2 MB in the beginning and 291.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 575.34 ms. Allocated memory is still 331.4 MB. Free memory was 291.2 MB in the beginning and 261.8 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6532.95 ms. Allocated memory was 331.4 MB in the beginning and 398.5 MB in the end (delta: 67.1 MB). Free memory was 261.8 MB in the beginning and 361.7 MB in the end (delta: -99.9 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1528.3ms, 95 PlacesBefore, 64 PlacesAfterwards, 113 TransitionsBefore, 77 TransitionsAfterwards, 4816 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 5 ChoiceCompositions, 49 TotalNumberOfCompositions, 2500 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1725, positive: 1701, positive conditional: 0, positive unconditional: 1701, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1531, positive: 1516, positive conditional: 0, positive unconditional: 1516, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1531, positive: 1516, positive conditional: 0, positive unconditional: 1516, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1531, positive: 1493, positive conditional: 0, positive unconditional: 1493, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 66, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1725, positive: 185, positive conditional: 0, positive unconditional: 185, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 1531, unknown conditional: 0, unknown unconditional: 1531] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 805.2ms, 59 PlacesBefore, 56 PlacesAfterwards, 68 TransitionsBefore, 66 TransitionsAfterwards, 2146 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 1320 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 441, positive: 409, positive conditional: 0, positive unconditional: 409, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 313, positive: 304, positive conditional: 0, positive unconditional: 304, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 313, positive: 304, positive conditional: 0, positive unconditional: 304, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 313, positive: 304, positive conditional: 0, positive unconditional: 304, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 441, positive: 105, positive conditional: 0, positive unconditional: 105, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 313, unknown conditional: 0, unknown unconditional: 313] , Statistics on independence cache: Total cache size (in pairs): 93, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 87.7ms, 60 PlacesBefore, 56 PlacesAfterwards, 68 TransitionsBefore, 64 TransitionsAfterwards, 2082 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 1559 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 365, positive: 320, positive conditional: 0, positive unconditional: 320, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 142, positive: 142, positive conditional: 0, positive unconditional: 142, 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: 142, positive: 142, positive conditional: 0, positive unconditional: 142, 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: 142, positive: 142, positive conditional: 0, positive unconditional: 142, 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: 365, positive: 178, positive conditional: 0, positive unconditional: 178, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 142, unknown conditional: 0, unknown unconditional: 142] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.5ms, 57 PlacesBefore, 57 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 1774 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 426 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 57, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 57, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 55.9ms, 64 PlacesBefore, 63 PlacesAfterwards, 69 TransitionsBefore, 69 TransitionsAfterwards, 1956 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 160 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 32, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 112, Positive cache size: 96, Positive conditional cache size: 0, Positive unconditional cache size: 96, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 244.7ms, 70 PlacesBefore, 69 PlacesAfterwards, 75 TransitionsBefore, 74 TransitionsAfterwards, 2252 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 169 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, positive: 32, positive conditional: 0, positive unconditional: 32, 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: 32, positive: 32, positive conditional: 0, positive unconditional: 32, 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: 32, positive: 32, positive conditional: 0, positive unconditional: 32, 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: 52, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 32, unknown conditional: 0, unknown unconditional: 32] , Statistics on independence cache: Total cache size (in pairs): 112, Positive cache size: 96, Positive conditional cache size: 0, Positive unconditional cache size: 96, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 320.4ms, 77 PlacesBefore, 76 PlacesAfterwards, 81 TransitionsBefore, 81 TransitionsAfterwards, 2428 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 79 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ 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] ], Cache Queries: [ total: 17, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 124, Positive cache size: 107, Positive conditional cache size: 0, Positive unconditional cache size: 107, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 381.1ms, 83 PlacesBefore, 82 PlacesAfterwards, 89 TransitionsBefore, 88 TransitionsAfterwards, 2674 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 103 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29, positive: 29, positive conditional: 0, positive unconditional: 29, 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: 29, positive: 29, positive conditional: 0, positive unconditional: 29, 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: 29, positive: 29, positive conditional: 0, positive unconditional: 29, 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: 39, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 29, unknown conditional: 0, unknown unconditional: 29] , Statistics on independence cache: Total cache size (in pairs): 124, Positive cache size: 107, Positive conditional cache size: 0, Positive unconditional cache size: 107, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 243.8ms, 89 PlacesBefore, 89 PlacesAfterwards, 96 TransitionsBefore, 96 TransitionsAfterwards, 2538 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 37 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, 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: 1, positive: 1, positive conditional: 0, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 125, Positive cache size: 108, Positive conditional cache size: 0, Positive unconditional cache size: 108, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9ms, 91 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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): 125, Positive cache size: 108, Positive conditional cache size: 0, Positive unconditional cache size: 108, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - PositiveResult [Line: 834]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 764]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 100 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 6374.6ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1926.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1642.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 147 SDtfs, 107 SDslu, 70 SDs, 0 SdLazy, 255 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 275.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 90.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=533occurred in iteration=8, InterpolantAutomatonStates: 38, 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: 19.7ms SsaConstructionTime, 113.8ms SatisfiabilityAnalysisTime, 303.6ms InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 250 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...