/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 19:41:59,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 19:41:59,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 19:41:59,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 19:41:59,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 19:41:59,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 19:41:59,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 19:41:59,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 19:41:59,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 19:41:59,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 19:41:59,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 19:41:59,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 19:41:59,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 19:41:59,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 19:41:59,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 19:41:59,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 19:41:59,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 19:41:59,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 19:41:59,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 19:41:59,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 19:41:59,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 19:41:59,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 19:41:59,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 19:41:59,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 19:41:59,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-10 19:41:59,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 19:41:59,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 19:41:59,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 19:41:59,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 19:41:59,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 19:41:59,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 19:41:59,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 19:41:59,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 19:41:59,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 19:41:59,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 19:41:59,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 19:41:59,323 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-06-10 19:41:59,346 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 19:41:59,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 19:41:59,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 19:41:59,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 19:41:59,349 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 19:41:59,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 19:41:59,349 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 19:41:59,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 19:41:59,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 19:41:59,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 19:41:59,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 19:41:59,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 19:41:59,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 19:41:59,350 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 19:41:59,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 19:41:59,350 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 19:41:59,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 19:41:59,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 19:41:59,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 19:41:59,351 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 19:41:59,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 19:41:59,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 19:41:59,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 19:41:59,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 19:41:59,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 19:41:59,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 19:41:59,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 19:41:59,351 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 19:41:59,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 19:41:59,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 19:41:59,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 19:41:59,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 19:41:59,601 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 19:41:59,605 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 19:41:59,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2021-06-10 19:41:59,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9b04cc25/7f5a309f05b640359f9455f5963bbd61/FLAGadf2e0146 [2021-06-10 19:42:00,028 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 19:42:00,029 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2021-06-10 19:42:00,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9b04cc25/7f5a309f05b640359f9455f5963bbd61/FLAGadf2e0146 [2021-06-10 19:42:00,377 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9b04cc25/7f5a309f05b640359f9455f5963bbd61 [2021-06-10 19:42:00,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 19:42:00,380 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 19:42:00,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 19:42:00,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 19:42:00,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 19:42:00,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 07:42:00" (1/1) ... [2021-06-10 19:42:00,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d10931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:42:00, skipping insertion in model container [2021-06-10 19:42:00,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 07:42:00" (1/1) ... [2021-06-10 19:42:00,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 19:42:00,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 19:42:00,530 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-10 19:42:00,627 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] [2021-06-10 19:42:00,631 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] [2021-06-10 19:42:00,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 19:42:00,638 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 19:42:00,647 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-10 19:42:00,658 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] [2021-06-10 19:42:00,661 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] [2021-06-10 19:42:00,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 19:42:00,701 INFO L208 MainTranslator]: Completed translation [2021-06-10 19:42:00,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:42:00 WrapperNode [2021-06-10 19:42:00,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 19:42:00,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 19:42:00,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 19:42:00,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 19:42:00,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:42:00" (1/1) ... [2021-06-10 19:42:00,715 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:42:00" (1/1) ... [2021-06-10 19:42:00,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 19:42:00,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 19:42:00,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 19:42:00,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 19:42:00,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:42:00" (1/1) ... [2021-06-10 19:42:00,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:42:00" (1/1) ... [2021-06-10 19:42:00,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:42:00" (1/1) ... [2021-06-10 19:42:00,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:42:00" (1/1) ... [2021-06-10 19:42:00,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:42:00" (1/1) ... [2021-06-10 19:42:00,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:42:00" (1/1) ... [2021-06-10 19:42:00,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:42:00" (1/1) ... [2021-06-10 19:42:00,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 19:42:00,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 19:42:00,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 19:42:00,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 19:42:00,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:42:00" (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 [2021-06-10 19:42:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-10 19:42:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-06-10 19:42:00,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-06-10 19:42:00,793 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-06-10 19:42:00,794 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-06-10 19:42:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 19:42:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 19:42:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 19:42:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 19:42:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 19:42:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 19:42:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 19:42:00,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 19:42:00,796 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 19:42:01,144 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 19:42:01,144 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-06-10 19:42:01,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 07:42:01 BoogieIcfgContainer [2021-06-10 19:42:01,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 19:42:01,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 19:42:01,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 19:42:01,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 19:42:01,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 07:42:00" (1/3) ... [2021-06-10 19:42:01,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123f3f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 07:42:01, skipping insertion in model container [2021-06-10 19:42:01,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:42:00" (2/3) ... [2021-06-10 19:42:01,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123f3f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 07:42:01, skipping insertion in model container [2021-06-10 19:42:01,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 07:42:01" (3/3) ... [2021-06-10 19:42:01,152 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.i [2021-06-10 19:42:01,155 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 19:42:01,158 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-06-10 19:42:01,159 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 19:42:01,190 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,190 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,190 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,191 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,191 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,191 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,191 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,194 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,194 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,195 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,195 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,195 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,195 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,211 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,212 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,212 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,213 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,217 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,217 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,217 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,218 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,218 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,218 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,220 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,220 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,220 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,220 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,220 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,220 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,220 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,224 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,224 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,224 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,224 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,225 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,225 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,225 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:42:01,231 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-10 19:42:01,243 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-06-10 19:42:01,266 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 19:42:01,266 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 19:42:01,266 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 19:42:01,266 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 19:42:01,266 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 19:42:01,266 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 19:42:01,266 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 19:42:01,266 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 19:42:01,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 125 transitions, 272 flow [2021-06-10 19:42:01,308 INFO L129 PetriNetUnfolder]: 25/125 cut-off events. [2021-06-10 19:42:01,308 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-10 19:42:01,313 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. [2021-06-10 19:42:01,313 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 125 transitions, 272 flow [2021-06-10 19:42:01,317 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 113 transitions, 238 flow [2021-06-10 19:42:01,318 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 19:42:01,326 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 113 transitions, 238 flow [2021-06-10 19:42:01,328 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 113 transitions, 238 flow [2021-06-10 19:42:01,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 113 transitions, 238 flow [2021-06-10 19:42:01,343 INFO L129 PetriNetUnfolder]: 24/115 cut-off events. [2021-06-10 19:42:01,343 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-10 19:42:01,344 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. [2021-06-10 19:42:01,347 INFO L151 LiptonReduction]: Number of co-enabled transitions 4816 [2021-06-10 19:42:01,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:01,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 19:42:01,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 19:42:01,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:01,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:01,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:01,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:01,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:01,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:01,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:01,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:01,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:01,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:01,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:01,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:01,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:01,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:01,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:02,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 19:42:02,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 19:42:02,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:02,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 19:42:02,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 19:42:02,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:02,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 19:42:02,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 19:42:02,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,562 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-10 19:42:02,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,643 INFO L142 QuantifierPusher]: treesize reduction 8, result has 33.3 percent of original size [2021-06-10 19:42:02,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:02,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:02,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 19:42:02,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 19:42:02,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:02,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:02,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 19:42:02,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-10 19:42:03,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:03,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:03,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 19:42:03,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 19:42:03,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:03,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:03,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-10 19:42:03,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 19:42:03,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:03,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-10 19:42:03,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-10 19:42:03,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:03,429 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-06-10 19:42:03,539 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-06-10 19:42:03,674 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-06-10 19:42:03,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:03,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:03,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 19:42:03,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 19:42:03,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:03,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:03,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-10 19:42:03,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 19:42:03,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:42:03,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-10 19:42:03,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-10 19:42:03,779 INFO L163 LiptonReduction]: Checked pairs total: 12324 [2021-06-10 19:42:03,779 INFO L165 LiptonReduction]: Total number of compositions: 70 [2021-06-10 19:42:03,781 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2464 [2021-06-10 19:42:03,787 INFO L129 PetriNetUnfolder]: 3/18 cut-off events. [2021-06-10 19:42:03,787 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-10 19:42:03,787 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:42:03,787 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-06-10 19:42:03,788 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:42:03,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:42:03,791 INFO L82 PathProgramCache]: Analyzing trace with hash 510148901, now seen corresponding path program 1 times [2021-06-10 19:42:03,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:42:03,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916225266] [2021-06-10 19:42:03,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:42:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:42:03,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:03,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:42:03,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916225266] [2021-06-10 19:42:03,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:42:03,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 19:42:03,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594814078] [2021-06-10 19:42:03,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-10 19:42:03,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:42:03,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-10 19:42:03,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-10 19:42:03,886 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 195 [2021-06-10 19:42:03,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 62 transitions, 136 flow. Second operand has 2 states, 2 states have (on average 173.5) internal successors, (347), 2 states have internal predecessors, (347), 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) [2021-06-10 19:42:03,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:42:03,887 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 195 [2021-06-10 19:42:03,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:42:03,895 INFO L129 PetriNetUnfolder]: 12/58 cut-off events. [2021-06-10 19:42:03,895 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-10 19:42:03,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 12/58 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 130 event pairs, 0 based on Foata normal form. 5/49 useless extension candidates. Maximal degree in co-relation 64. Up to 3 conditions per place. [2021-06-10 19:42:03,896 INFO L132 encePairwiseOnDemand]: 190/195 looper letters, 0 selfloop transitions, 0 changer transitions 0/57 dead transitions. [2021-06-10 19:42:03,896 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 57 transitions, 126 flow [2021-06-10 19:42:03,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-10 19:42:03,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-06-10 19:42:03,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 351 transitions. [2021-06-10 19:42:03,903 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9 [2021-06-10 19:42:03,904 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 351 transitions. [2021-06-10 19:42:03,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 351 transitions. [2021-06-10 19:42:03,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:42:03,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 351 transitions. [2021-06-10 19:42:03,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 175.5) internal successors, (351), 2 states have internal predecessors, (351), 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) [2021-06-10 19:42:03,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 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) [2021-06-10 19:42:03,912 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 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) [2021-06-10 19:42:03,913 INFO L185 Difference]: Start difference. First operand has 51 places, 62 transitions, 136 flow. Second operand 2 states and 351 transitions. [2021-06-10 19:42:03,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 57 transitions, 126 flow [2021-06-10 19:42:03,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 118 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-10 19:42:03,916 INFO L241 Difference]: Finished difference. Result has 48 places, 57 transitions, 118 flow [2021-06-10 19:42:03,917 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=57} [2021-06-10 19:42:03,918 INFO L343 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2021-06-10 19:42:03,918 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 57 transitions, 118 flow [2021-06-10 19:42:03,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 173.5) internal successors, (347), 2 states have internal predecessors, (347), 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) [2021-06-10 19:42:03,918 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:42:03,918 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:42:03,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 19:42:03,919 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:42:03,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:42:03,919 INFO L82 PathProgramCache]: Analyzing trace with hash 79339570, now seen corresponding path program 1 times [2021-06-10 19:42:03,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:42:03,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750449454] [2021-06-10 19:42:03,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:42:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:42:03,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:03,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:03,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:42:03,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:42:03,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750449454] [2021-06-10 19:42:03,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:42:03,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 19:42:03,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988942249] [2021-06-10 19:42:03,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 19:42:03,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:42:03,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 19:42:03,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 19:42:03,956 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 195 [2021-06-10 19:42:03,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 57 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 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) [2021-06-10 19:42:03,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:42:03,957 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 195 [2021-06-10 19:42:03,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:42:03,980 INFO L129 PetriNetUnfolder]: 18/98 cut-off events. [2021-06-10 19:42:03,981 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 19:42:03,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 98 events. 18/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 341 event pairs, 2 based on Foata normal form. 4/79 useless extension candidates. Maximal degree in co-relation 128. Up to 18 conditions per place. [2021-06-10 19:42:03,981 INFO L132 encePairwiseOnDemand]: 188/195 looper letters, 6 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2021-06-10 19:42:03,982 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 60 transitions, 146 flow [2021-06-10 19:42:03,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 19:42:03,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 19:42:03,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 481 transitions. [2021-06-10 19:42:03,984 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2021-06-10 19:42:03,984 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 481 transitions. [2021-06-10 19:42:03,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 481 transitions. [2021-06-10 19:42:03,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:42:03,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 481 transitions. [2021-06-10 19:42:03,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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) [2021-06-10 19:42:03,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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) [2021-06-10 19:42:03,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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) [2021-06-10 19:42:03,987 INFO L185 Difference]: Start difference. First operand has 48 places, 57 transitions, 118 flow. Second operand 3 states and 481 transitions. [2021-06-10 19:42:03,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 60 transitions, 146 flow [2021-06-10 19:42:03,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 60 transitions, 146 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-10 19:42:03,989 INFO L241 Difference]: Finished difference. Result has 52 places, 59 transitions, 150 flow [2021-06-10 19:42:03,989 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=52, PETRI_TRANSITIONS=59} [2021-06-10 19:42:03,989 INFO L343 CegarLoopForPetriNet]: 51 programPoint places, 1 predicate places. [2021-06-10 19:42:03,989 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 59 transitions, 150 flow [2021-06-10 19:42:03,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 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) [2021-06-10 19:42:03,989 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:42:03,989 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:42:03,990 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 19:42:03,990 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:42:03,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:42:03,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1181980072, now seen corresponding path program 1 times [2021-06-10 19:42:03,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:42:03,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240183366] [2021-06-10 19:42:03,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:42:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:42:04,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:04,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 19:42:04,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:42:04,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240183366] [2021-06-10 19:42:04,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:42:04,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 19:42:04,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44414346] [2021-06-10 19:42:04,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 19:42:04,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:42:04,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 19:42:04,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 19:42:04,018 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 195 [2021-06-10 19:42:04,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 59 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 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) [2021-06-10 19:42:04,018 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:42:04,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 195 [2021-06-10 19:42:04,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:42:04,044 INFO L129 PetriNetUnfolder]: 15/87 cut-off events. [2021-06-10 19:42:04,044 INFO L130 PetriNetUnfolder]: For 20/32 co-relation queries the response was YES. [2021-06-10 19:42:04,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 87 events. 15/87 cut-off events. For 20/32 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 274 event pairs, 1 based on Foata normal form. 4/73 useless extension candidates. Maximal degree in co-relation 140. Up to 13 conditions per place. [2021-06-10 19:42:04,045 INFO L132 encePairwiseOnDemand]: 190/195 looper letters, 6 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2021-06-10 19:42:04,045 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 59 transitions, 170 flow [2021-06-10 19:42:04,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 19:42:04,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 19:42:04,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 479 transitions. [2021-06-10 19:42:04,047 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8188034188034188 [2021-06-10 19:42:04,047 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 479 transitions. [2021-06-10 19:42:04,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 479 transitions. [2021-06-10 19:42:04,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:42:04,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 479 transitions. [2021-06-10 19:42:04,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 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) [2021-06-10 19:42:04,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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) [2021-06-10 19:42:04,051 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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) [2021-06-10 19:42:04,051 INFO L185 Difference]: Start difference. First operand has 52 places, 59 transitions, 150 flow. Second operand 3 states and 479 transitions. [2021-06-10 19:42:04,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 59 transitions, 170 flow [2021-06-10 19:42:04,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 59 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 19:42:04,053 INFO L241 Difference]: Finished difference. Result has 53 places, 59 transitions, 154 flow [2021-06-10 19:42:04,053 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=53, PETRI_TRANSITIONS=59} [2021-06-10 19:42:04,053 INFO L343 CegarLoopForPetriNet]: 51 programPoint places, 2 predicate places. [2021-06-10 19:42:04,053 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 59 transitions, 154 flow [2021-06-10 19:42:04,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 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) [2021-06-10 19:42:04,053 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:42:04,054 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:42:04,054 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 19:42:04,054 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:42:04,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:42:04,054 INFO L82 PathProgramCache]: Analyzing trace with hash -260488558, now seen corresponding path program 1 times [2021-06-10 19:42:04,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:42:04,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521516874] [2021-06-10 19:42:04,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:42:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:42:04,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:04,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:42:04,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:42:04,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:04,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:42:04,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521516874] [2021-06-10 19:42:04,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:42:04,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 19:42:04,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201145539] [2021-06-10 19:42:04,102 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 19:42:04,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:42:04,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 19:42:04,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 19:42:04,103 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 195 [2021-06-10 19:42:04,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 59 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 128.5) internal successors, (514), 4 states have internal predecessors, (514), 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) [2021-06-10 19:42:04,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:42:04,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 195 [2021-06-10 19:42:04,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:42:04,235 INFO L129 PetriNetUnfolder]: 222/574 cut-off events. [2021-06-10 19:42:04,235 INFO L130 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2021-06-10 19:42:04,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1014 conditions, 574 events. 222/574 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3351 event pairs, 48 based on Foata normal form. 0/474 useless extension candidates. Maximal degree in co-relation 1008. Up to 255 conditions per place. [2021-06-10 19:42:04,240 INFO L132 encePairwiseOnDemand]: 180/195 looper letters, 35 selfloop transitions, 16 changer transitions 0/85 dead transitions. [2021-06-10 19:42:04,240 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 85 transitions, 308 flow [2021-06-10 19:42:04,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 19:42:04,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 19:42:04,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 697 transitions. [2021-06-10 19:42:04,242 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7148717948717949 [2021-06-10 19:42:04,242 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 697 transitions. [2021-06-10 19:42:04,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 697 transitions. [2021-06-10 19:42:04,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:42:04,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 697 transitions. [2021-06-10 19:42:04,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 139.4) internal successors, (697), 5 states have internal predecessors, (697), 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) [2021-06-10 19:42:04,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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) [2021-06-10 19:42:04,245 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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) [2021-06-10 19:42:04,245 INFO L185 Difference]: Start difference. First operand has 53 places, 59 transitions, 154 flow. Second operand 5 states and 697 transitions. [2021-06-10 19:42:04,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 85 transitions, 308 flow [2021-06-10 19:42:04,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 85 transitions, 304 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 19:42:04,248 INFO L241 Difference]: Finished difference. Result has 59 places, 74 transitions, 285 flow [2021-06-10 19:42:04,248 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=285, PETRI_PLACES=59, PETRI_TRANSITIONS=74} [2021-06-10 19:42:04,249 INFO L343 CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places. [2021-06-10 19:42:04,249 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 74 transitions, 285 flow [2021-06-10 19:42:04,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.5) internal successors, (514), 4 states have internal predecessors, (514), 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) [2021-06-10 19:42:04,249 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:42:04,249 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:42:04,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 19:42:04,249 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:42:04,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:42:04,250 INFO L82 PathProgramCache]: Analyzing trace with hash 748982630, now seen corresponding path program 2 times [2021-06-10 19:42:04,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:42:04,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092293811] [2021-06-10 19:42:04,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:42:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:42:04,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:04,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:42:04,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:04,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:42:04,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092293811] [2021-06-10 19:42:04,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:42:04,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 19:42:04,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285672934] [2021-06-10 19:42:04,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 19:42:04,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:42:04,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 19:42:04,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 19:42:04,288 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 195 [2021-06-10 19:42:04,290 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 74 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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) [2021-06-10 19:42:04,290 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:42:04,290 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 195 [2021-06-10 19:42:04,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:42:04,362 INFO L129 PetriNetUnfolder]: 208/699 cut-off events. [2021-06-10 19:42:04,363 INFO L130 PetriNetUnfolder]: For 173/187 co-relation queries the response was YES. [2021-06-10 19:42:04,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1371 conditions, 699 events. 208/699 cut-off events. For 173/187 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4944 event pairs, 27 based on Foata normal form. 8/612 useless extension candidates. Maximal degree in co-relation 1362. Up to 154 conditions per place. [2021-06-10 19:42:04,366 INFO L132 encePairwiseOnDemand]: 192/195 looper letters, 9 selfloop transitions, 2 changer transitions 4/78 dead transitions. [2021-06-10 19:42:04,366 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 78 transitions, 315 flow [2021-06-10 19:42:04,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 19:42:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 19:42:04,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 491 transitions. [2021-06-10 19:42:04,368 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8393162393162393 [2021-06-10 19:42:04,368 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 491 transitions. [2021-06-10 19:42:04,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 491 transitions. [2021-06-10 19:42:04,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:42:04,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 491 transitions. [2021-06-10 19:42:04,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2021-06-10 19:42:04,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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) [2021-06-10 19:42:04,370 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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) [2021-06-10 19:42:04,370 INFO L185 Difference]: Start difference. First operand has 59 places, 74 transitions, 285 flow. Second operand 3 states and 491 transitions. [2021-06-10 19:42:04,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 78 transitions, 315 flow [2021-06-10 19:42:04,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 78 transitions, 315 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-10 19:42:04,376 INFO L241 Difference]: Finished difference. Result has 63 places, 72 transitions, 284 flow [2021-06-10 19:42:04,376 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=63, PETRI_TRANSITIONS=72} [2021-06-10 19:42:04,377 INFO L343 CegarLoopForPetriNet]: 51 programPoint places, 12 predicate places. [2021-06-10 19:42:04,377 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 72 transitions, 284 flow [2021-06-10 19:42:04,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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) [2021-06-10 19:42:04,377 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:42:04,377 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:42:04,377 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 19:42:04,378 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:42:04,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:42:04,378 INFO L82 PathProgramCache]: Analyzing trace with hash 555173760, now seen corresponding path program 3 times [2021-06-10 19:42:04,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:42:04,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564733380] [2021-06-10 19:42:04,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:42:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:42:04,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:04,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:42:04,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:04,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:42:04,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564733380] [2021-06-10 19:42:04,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:42:04,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 19:42:04,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264847903] [2021-06-10 19:42:04,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 19:42:04,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:42:04,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 19:42:04,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 19:42:04,421 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 195 [2021-06-10 19:42:04,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 72 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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) [2021-06-10 19:42:04,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:42:04,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 195 [2021-06-10 19:42:04,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:42:04,534 INFO L129 PetriNetUnfolder]: 378/1050 cut-off events. [2021-06-10 19:42:04,535 INFO L130 PetriNetUnfolder]: For 559/633 co-relation queries the response was YES. [2021-06-10 19:42:04,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2538 conditions, 1050 events. 378/1050 cut-off events. For 559/633 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 7528 event pairs, 60 based on Foata normal form. 15/986 useless extension candidates. Maximal degree in co-relation 2527. Up to 304 conditions per place. [2021-06-10 19:42:04,541 INFO L132 encePairwiseOnDemand]: 188/195 looper letters, 38 selfloop transitions, 7 changer transitions 6/91 dead transitions. [2021-06-10 19:42:04,541 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 91 transitions, 471 flow [2021-06-10 19:42:04,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 19:42:04,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 19:42:04,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2021-06-10 19:42:04,542 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7829059829059829 [2021-06-10 19:42:04,542 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 458 transitions. [2021-06-10 19:42:04,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 458 transitions. [2021-06-10 19:42:04,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:42:04,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 458 transitions. [2021-06-10 19:42:04,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 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) [2021-06-10 19:42:04,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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) [2021-06-10 19:42:04,545 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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) [2021-06-10 19:42:04,545 INFO L185 Difference]: Start difference. First operand has 63 places, 72 transitions, 284 flow. Second operand 3 states and 458 transitions. [2021-06-10 19:42:04,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 91 transitions, 471 flow [2021-06-10 19:42:04,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 91 transitions, 467 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 19:42:04,549 INFO L241 Difference]: Finished difference. Result has 65 places, 75 transitions, 341 flow [2021-06-10 19:42:04,549 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=341, PETRI_PLACES=65, PETRI_TRANSITIONS=75} [2021-06-10 19:42:04,549 INFO L343 CegarLoopForPetriNet]: 51 programPoint places, 14 predicate places. [2021-06-10 19:42:04,549 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 75 transitions, 341 flow [2021-06-10 19:42:04,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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) [2021-06-10 19:42:04,550 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:42:04,550 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:42:04,550 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-10 19:42:04,550 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:42:04,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:42:04,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1334386250, now seen corresponding path program 4 times [2021-06-10 19:42:04,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:42:04,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514891298] [2021-06-10 19:42:04,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:42:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:42:04,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:04,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:42:04,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:42:04,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:04,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:42:04,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514891298] [2021-06-10 19:42:04,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:42:04,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 19:42:04,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693626642] [2021-06-10 19:42:04,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 19:42:04,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:42:04,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 19:42:04,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 19:42:04,602 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 195 [2021-06-10 19:42:04,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 75 transitions, 341 flow. Second operand has 4 states, 4 states have (on average 156.75) internal successors, (627), 4 states have internal predecessors, (627), 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) [2021-06-10 19:42:04,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:42:04,603 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 195 [2021-06-10 19:42:04,603 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:42:04,675 INFO L129 PetriNetUnfolder]: 227/915 cut-off events. [2021-06-10 19:42:04,676 INFO L130 PetriNetUnfolder]: For 720/754 co-relation queries the response was YES. [2021-06-10 19:42:04,678 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2099 conditions, 915 events. 227/915 cut-off events. For 720/754 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 6685 event pairs, 31 based on Foata normal form. 36/863 useless extension candidates. Maximal degree in co-relation 2087. Up to 213 conditions per place. [2021-06-10 19:42:04,680 INFO L132 encePairwiseOnDemand]: 190/195 looper letters, 19 selfloop transitions, 4 changer transitions 9/92 dead transitions. [2021-06-10 19:42:04,680 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 92 transitions, 483 flow [2021-06-10 19:42:04,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 19:42:04,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 19:42:04,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 802 transitions. [2021-06-10 19:42:04,682 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8225641025641026 [2021-06-10 19:42:04,682 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 802 transitions. [2021-06-10 19:42:04,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 802 transitions. [2021-06-10 19:42:04,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:42:04,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 802 transitions. [2021-06-10 19:42:04,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 160.4) internal successors, (802), 5 states have internal predecessors, (802), 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) [2021-06-10 19:42:04,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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) [2021-06-10 19:42:04,685 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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) [2021-06-10 19:42:04,685 INFO L185 Difference]: Start difference. First operand has 65 places, 75 transitions, 341 flow. Second operand 5 states and 802 transitions. [2021-06-10 19:42:04,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 92 transitions, 483 flow [2021-06-10 19:42:04,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 92 transitions, 455 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-06-10 19:42:04,690 INFO L241 Difference]: Finished difference. Result has 70 places, 76 transitions, 348 flow [2021-06-10 19:42:04,691 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=348, PETRI_PLACES=70, PETRI_TRANSITIONS=76} [2021-06-10 19:42:04,691 INFO L343 CegarLoopForPetriNet]: 51 programPoint places, 19 predicate places. [2021-06-10 19:42:04,691 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 76 transitions, 348 flow [2021-06-10 19:42:04,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 156.75) internal successors, (627), 4 states have internal predecessors, (627), 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) [2021-06-10 19:42:04,691 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:42:04,691 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] [2021-06-10 19:42:04,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-10 19:42:04,691 INFO L428 AbstractCegarLoop]: === Iteration 8 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:42:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:42:04,692 INFO L82 PathProgramCache]: Analyzing trace with hash -462613471, now seen corresponding path program 1 times [2021-06-10 19:42:04,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:42:04,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848579029] [2021-06-10 19:42:04,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:42:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:42:04,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:04,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:42:04,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 19:42:04,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:04,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:42:04,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848579029] [2021-06-10 19:42:04,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:42:04,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 19:42:04,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264247527] [2021-06-10 19:42:04,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 19:42:04,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:42:04,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 19:42:04,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 19:42:04,739 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 195 [2021-06-10 19:42:04,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 76 transitions, 348 flow. Second operand has 4 states, 4 states have (on average 153.25) internal successors, (613), 4 states have internal predecessors, (613), 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) [2021-06-10 19:42:04,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:42:04,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 195 [2021-06-10 19:42:04,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:42:04,828 INFO L129 PetriNetUnfolder]: 272/1023 cut-off events. [2021-06-10 19:42:04,828 INFO L130 PetriNetUnfolder]: For 573/597 co-relation queries the response was YES. [2021-06-10 19:42:04,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2358 conditions, 1023 events. 272/1023 cut-off events. For 573/597 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7305 event pairs, 37 based on Foata normal form. 38/963 useless extension candidates. Maximal degree in co-relation 2344. Up to 217 conditions per place. [2021-06-10 19:42:04,833 INFO L132 encePairwiseOnDemand]: 187/195 looper letters, 11 selfloop transitions, 11 changer transitions 5/89 dead transitions. [2021-06-10 19:42:04,833 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 89 transitions, 425 flow [2021-06-10 19:42:04,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 19:42:04,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 19:42:04,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 787 transitions. [2021-06-10 19:42:04,835 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8071794871794872 [2021-06-10 19:42:04,835 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 787 transitions. [2021-06-10 19:42:04,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 787 transitions. [2021-06-10 19:42:04,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:42:04,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 787 transitions. [2021-06-10 19:42:04,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 157.4) internal successors, (787), 5 states have internal predecessors, (787), 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) [2021-06-10 19:42:04,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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) [2021-06-10 19:42:04,838 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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) [2021-06-10 19:42:04,838 INFO L185 Difference]: Start difference. First operand has 70 places, 76 transitions, 348 flow. Second operand 5 states and 787 transitions. [2021-06-10 19:42:04,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 89 transitions, 425 flow [2021-06-10 19:42:04,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 89 transitions, 417 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-06-10 19:42:04,842 INFO L241 Difference]: Finished difference. Result has 75 places, 80 transitions, 387 flow [2021-06-10 19:42:04,842 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=387, PETRI_PLACES=75, PETRI_TRANSITIONS=80} [2021-06-10 19:42:04,843 INFO L343 CegarLoopForPetriNet]: 51 programPoint places, 24 predicate places. [2021-06-10 19:42:04,843 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 80 transitions, 387 flow [2021-06-10 19:42:04,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 153.25) internal successors, (613), 4 states have internal predecessors, (613), 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) [2021-06-10 19:42:04,843 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:42:04,843 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:42:04,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-10 19:42:04,843 INFO L428 AbstractCegarLoop]: === Iteration 9 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:42:04,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:42:04,843 INFO L82 PathProgramCache]: Analyzing trace with hash 409360244, now seen corresponding path program 1 times [2021-06-10 19:42:04,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:42:04,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531279747] [2021-06-10 19:42:04,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:42:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:42:04,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:04,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:42:04,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 19:42:04,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:04,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:42:04,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531279747] [2021-06-10 19:42:04,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:42:04,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 19:42:04,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301725646] [2021-06-10 19:42:04,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 19:42:04,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:42:04,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 19:42:04,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 19:42:04,878 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 195 [2021-06-10 19:42:04,879 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 80 transitions, 387 flow. Second operand has 4 states, 4 states have (on average 151.25) internal successors, (605), 4 states have internal predecessors, (605), 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) [2021-06-10 19:42:04,879 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:42:04,879 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 195 [2021-06-10 19:42:04,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:42:04,950 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([353] L777-->L780: Formula: (= v_~x~0_1 2) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0][14], [Black: 129#(and (= 2 ~y~0) (= 2 thr1Thread1of1ForFork0_~y1~0)), 35#L846-2true, Black: 126#(= 2 ~y~0), Black: 160#(= thr2Thread1of1ForFork1_~b12~0 1), Black: 127#(= 2 thr1Thread1of1ForFork0_~y1~0), Black: 162#(and (= thr2Thread1of1ForFork1_~b12~0 1) (= ~b1~0 1)), 169#(= ~b2~0 1), Black: 134#true, 110#true, Black: 140#true, 146#true, 51#L780true, 84#L704-2true, Black: 113#true, Black: 148#(= ~x~0 1), Black: 121#(= ~X~0 1), Black: 151#(and (= ~x~0 1) (= thr2Thread1of1ForFork1_~x2~0 1)), 159#(= ~b1~0 1)]) [2021-06-10 19:42:04,950 INFO L384 tUnfolder$Statistics]: this new event has 32 ancestors and is cut-off event [2021-06-10 19:42:04,950 INFO L387 tUnfolder$Statistics]: existing Event has 12 ancestors and is cut-off event [2021-06-10 19:42:04,950 INFO L387 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2021-06-10 19:42:04,950 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-06-10 19:42:04,955 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([396] L707-->L710: Formula: (= v_~x~0_3 1) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0][19], [65#L710true, Black: 129#(and (= 2 ~y~0) (= 2 thr1Thread1of1ForFork0_~y1~0)), 35#L846-2true, Black: 160#(= thr2Thread1of1ForFork1_~b12~0 1), Black: 126#(= 2 ~y~0), Black: 162#(and (= thr2Thread1of1ForFork1_~b12~0 1) (= ~b1~0 1)), Black: 127#(= 2 thr1Thread1of1ForFork0_~y1~0), 169#(= ~b2~0 1), Black: 136#(= 2 ~x~0), 110#true, Black: 140#true, 51#L780true, 148#(= ~x~0 1), Black: 113#true, Black: 146#true, Black: 121#(= ~X~0 1), Black: 151#(and (= ~x~0 1) (= thr2Thread1of1ForFork1_~x2~0 1)), 159#(= ~b1~0 1)]) [2021-06-10 19:42:04,955 INFO L384 tUnfolder$Statistics]: this new event has 36 ancestors and is cut-off event [2021-06-10 19:42:04,955 INFO L387 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2021-06-10 19:42:04,955 INFO L387 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2021-06-10 19:42:04,955 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-06-10 19:42:04,959 INFO L129 PetriNetUnfolder]: 214/867 cut-off events. [2021-06-10 19:42:04,959 INFO L130 PetriNetUnfolder]: For 547/596 co-relation queries the response was YES. [2021-06-10 19:42:04,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2138 conditions, 867 events. 214/867 cut-off events. For 547/596 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6045 event pairs, 26 based on Foata normal form. 31/845 useless extension candidates. Maximal degree in co-relation 2121. Up to 180 conditions per place. [2021-06-10 19:42:04,963 INFO L132 encePairwiseOnDemand]: 187/195 looper letters, 10 selfloop transitions, 9 changer transitions 6/92 dead transitions. [2021-06-10 19:42:04,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 92 transitions, 461 flow [2021-06-10 19:42:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 19:42:04,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 19:42:04,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 776 transitions. [2021-06-10 19:42:04,965 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7958974358974359 [2021-06-10 19:42:04,965 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 776 transitions. [2021-06-10 19:42:04,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 776 transitions. [2021-06-10 19:42:04,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:42:04,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 776 transitions. [2021-06-10 19:42:04,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 155.2) internal successors, (776), 5 states have internal predecessors, (776), 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) [2021-06-10 19:42:04,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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) [2021-06-10 19:42:04,968 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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) [2021-06-10 19:42:04,968 INFO L185 Difference]: Start difference. First operand has 75 places, 80 transitions, 387 flow. Second operand 5 states and 776 transitions. [2021-06-10 19:42:04,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 92 transitions, 461 flow [2021-06-10 19:42:04,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 92 transitions, 445 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-06-10 19:42:04,973 INFO L241 Difference]: Finished difference. Result has 80 places, 83 transitions, 419 flow [2021-06-10 19:42:04,973 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=419, PETRI_PLACES=80, PETRI_TRANSITIONS=83} [2021-06-10 19:42:04,973 INFO L343 CegarLoopForPetriNet]: 51 programPoint places, 29 predicate places. [2021-06-10 19:42:04,973 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 83 transitions, 419 flow [2021-06-10 19:42:04,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 151.25) internal successors, (605), 4 states have internal predecessors, (605), 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) [2021-06-10 19:42:04,973 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:42:04,973 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:42:04,974 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-10 19:42:04,975 INFO L428 AbstractCegarLoop]: === Iteration 10 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:42:04,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:42:04,975 INFO L82 PathProgramCache]: Analyzing trace with hash -859451159, now seen corresponding path program 1 times [2021-06-10 19:42:04,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:42:04,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214562650] [2021-06-10 19:42:04,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:42:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:42:04,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:04,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:42:04,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:04,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:42:04,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:42:05,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:42:05,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:42:05,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214562650] [2021-06-10 19:42:05,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:42:05,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 19:42:05,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027226460] [2021-06-10 19:42:05,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 19:42:05,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:42:05,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 19:42:05,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 19:42:05,003 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 195 [2021-06-10 19:42:05,003 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 83 transitions, 419 flow. Second operand has 4 states, 4 states have (on average 156.75) internal successors, (627), 4 states have internal predecessors, (627), 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) [2021-06-10 19:42:05,003 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:42:05,003 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 195 [2021-06-10 19:42:05,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:42:05,039 INFO L129 PetriNetUnfolder]: 67/279 cut-off events. [2021-06-10 19:42:05,039 INFO L130 PetriNetUnfolder]: For 298/341 co-relation queries the response was YES. [2021-06-10 19:42:05,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 279 events. 67/279 cut-off events. For 298/341 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1356 event pairs, 3 based on Foata normal form. 27/289 useless extension candidates. Maximal degree in co-relation 780. Up to 53 conditions per place. [2021-06-10 19:42:05,040 INFO L132 encePairwiseOnDemand]: 191/195 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2021-06-10 19:42:05,040 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 73 transitions, 414 flow [2021-06-10 19:42:05,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 19:42:05,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 19:42:05,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 792 transitions. [2021-06-10 19:42:05,042 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8123076923076923 [2021-06-10 19:42:05,042 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 792 transitions. [2021-06-10 19:42:05,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 792 transitions. [2021-06-10 19:42:05,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:42:05,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 792 transitions. [2021-06-10 19:42:05,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 158.4) internal successors, (792), 5 states have internal predecessors, (792), 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) [2021-06-10 19:42:05,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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) [2021-06-10 19:42:05,046 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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) [2021-06-10 19:42:05,046 INFO L185 Difference]: Start difference. First operand has 80 places, 83 transitions, 419 flow. Second operand 5 states and 792 transitions. [2021-06-10 19:42:05,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 73 transitions, 414 flow [2021-06-10 19:42:05,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 73 transitions, 383 flow, removed 10 selfloop flow, removed 3 redundant places. [2021-06-10 19:42:05,049 INFO L241 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2021-06-10 19:42:05,049 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=76, PETRI_TRANSITIONS=0} [2021-06-10 19:42:05,049 INFO L343 CegarLoopForPetriNet]: 51 programPoint places, 25 predicate places. [2021-06-10 19:42:05,049 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 0 transitions, 0 flow [2021-06-10 19:42:05,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 156.75) internal successors, (627), 4 states have internal predecessors, (627), 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) [2021-06-10 19:42:05,050 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-10 19:42:05,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 07:42:05 BasicIcfg [2021-06-10 19:42:05,052 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 19:42:05,053 INFO L168 Benchmark]: Toolchain (without parser) took 4673.08 ms. Allocated memory was 371.2 MB in the beginning and 465.6 MB in the end (delta: 94.4 MB). Free memory was 333.9 MB in the beginning and 224.5 MB in the end (delta: 109.4 MB). Peak memory consumption was 205.0 MB. Max. memory is 16.0 GB. [2021-06-10 19:42:05,053 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 371.2 MB. Free memory is still 352.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 19:42:05,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.90 ms. Allocated memory is still 371.2 MB. Free memory was 333.7 MB in the beginning and 333.6 MB in the end (delta: 80.3 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. [2021-06-10 19:42:05,054 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.49 ms. Allocated memory is still 371.2 MB. Free memory was 333.6 MB in the beginning and 332.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 19:42:05,055 INFO L168 Benchmark]: Boogie Preprocessor took 15.55 ms. Allocated memory is still 371.2 MB. Free memory was 332.6 MB in the beginning and 330.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 19:42:05,055 INFO L168 Benchmark]: RCFGBuilder took 404.95 ms. Allocated memory is still 371.2 MB. Free memory was 330.5 MB in the beginning and 303.2 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-10 19:42:05,056 INFO L168 Benchmark]: TraceAbstraction took 3905.08 ms. Allocated memory was 371.2 MB in the beginning and 465.6 MB in the end (delta: 94.4 MB). Free memory was 302.1 MB in the beginning and 224.5 MB in the end (delta: 77.7 MB). Peak memory consumption was 174.1 MB. Max. memory is 16.0 GB. [2021-06-10 19:42:05,062 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 371.2 MB. Free memory is still 352.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 320.90 ms. Allocated memory is still 371.2 MB. Free memory was 333.7 MB in the beginning and 333.6 MB in the end (delta: 80.3 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.49 ms. Allocated memory is still 371.2 MB. Free memory was 333.6 MB in the beginning and 332.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.55 ms. Allocated memory is still 371.2 MB. Free memory was 332.6 MB in the beginning and 330.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 404.95 ms. Allocated memory is still 371.2 MB. Free memory was 330.5 MB in the beginning and 303.2 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3905.08 ms. Allocated memory was 371.2 MB in the beginning and 465.6 MB in the end (delta: 94.4 MB). Free memory was 302.1 MB in the beginning and 224.5 MB in the end (delta: 77.7 MB). Peak memory consumption was 174.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2451.3ms, 95 PlacesBefore, 51 PlacesAfterwards, 113 TransitionsBefore, 62 TransitionsAfterwards, 4816 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 7 ChoiceCompositions, 70 TotalNumberOfCompositions, 12324 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5148, positive: 4846, positive conditional: 0, positive unconditional: 4846, negative: 302, negative conditional: 0, negative unconditional: 302, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2625, positive: 2556, positive conditional: 0, positive unconditional: 2556, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2625, positive: 2556, positive conditional: 0, positive unconditional: 2556, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2625, positive: 2508, positive conditional: 0, positive unconditional: 2508, negative: 117, negative conditional: 0, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 117, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 169, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 126, negative conditional: 0, negative unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5148, positive: 2290, positive conditional: 0, positive unconditional: 2290, negative: 233, negative conditional: 0, negative unconditional: 233, unknown: 2625, unknown conditional: 0, unknown unconditional: 2625] , Statistics on independence cache: Total cache size (in pairs): 3562, Positive cache size: 3494, Positive conditional cache size: 0, Positive unconditional cache size: 3494, Negative cache size: 68, Negative conditional cache size: 0, Negative unconditional cache size: 68 - 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: 2.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3787.6ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 806.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2518.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 130 SDtfs, 69 SDslu, 49 SDs, 0 SdLazy, 200 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 180.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 68.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=419occurred in iteration=9, InterpolantAutomatonStates: 39, 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: 14.3ms SsaConstructionTime, 72.4ms SatisfiabilityAnalysisTime, 233.2ms InterpolantComputationTime, 166 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...