/usr/bin/java -Xmx8000000000 -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-NoLbe-OGIterative.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-12 23:34:12,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-12 23:34:12,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-12 23:34:12,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-12 23:34:12,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-12 23:34:12,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-12 23:34:12,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-12 23:34:12,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-12 23:34:12,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-12 23:34:12,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-12 23:34:12,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-12 23:34:12,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-12 23:34:12,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-12 23:34:12,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-12 23:34:12,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-12 23:34:12,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-12 23:34:12,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-12 23:34:12,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-12 23:34:12,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-12 23:34:12,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-12 23:34:12,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-12 23:34:12,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-12 23:34:12,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-12 23:34:12,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-12 23:34:12,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-12 23:34:12,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-12 23:34:12,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-12 23:34:12,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-12 23:34:12,646 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-NoLbe-OGIterative.epf [2021-08-12 23:34:12,663 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-12 23:34:12,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-12 23:34:12,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-12 23:34:12,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-12 23:34:12,664 INFO L138 SettingsManager]: * Use SBE=true [2021-08-12 23:34:12,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-12 23:34:12,664 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-12 23:34:12,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-12 23:34:12,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-12 23:34:12,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-12 23:34:12,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-12 23:34:12,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-12 23:34:12,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-12 23:34:12,665 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-12 23:34:12,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-12 23:34:12,665 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-12 23:34:12,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-12 23:34:12,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-12 23:34:12,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-12 23:34:12,666 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-12 23:34:12,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-12 23:34:12,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-12 23:34:12,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-12 23:34:12,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-12 23:34:12,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-12 23:34:12,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-12 23:34:12,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-12 23:34:12,666 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-12 23:34:12,666 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-12 23:34:12,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-12 23:34:12,667 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-12 23:34:12,667 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-12 23:34:12,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-12 23:34:12,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-12 23:34:12,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-12 23:34:12,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-12 23:34:12,934 INFO L275 PluginConnector]: CDTParser initialized [2021-08-12 23:34:12,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2021-08-12 23:34:12,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41526de5a/3e64d3fbcf064c1d9d73a65955f43426/FLAGa122ae4d8 [2021-08-12 23:34:13,453 INFO L306 CDTParser]: Found 1 translation units. [2021-08-12 23:34:13,454 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2021-08-12 23:34:13,467 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41526de5a/3e64d3fbcf064c1d9d73a65955f43426/FLAGa122ae4d8 [2021-08-12 23:34:13,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41526de5a/3e64d3fbcf064c1d9d73a65955f43426 [2021-08-12 23:34:13,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-12 23:34:13,484 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-12 23:34:13,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-12 23:34:13,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-12 23:34:13,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-12 23:34:13,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 11:34:13" (1/1) ... [2021-08-12 23:34:13,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a7e33a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 11:34:13, skipping insertion in model container [2021-08-12 23:34:13,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 11:34:13" (1/1) ... [2021-08-12 23:34:13,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-12 23:34:13,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-12 23:34:13,686 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-12 23:34:13,809 WARN L224 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] [2021-08-12 23:34:13,815 WARN L224 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] [2021-08-12 23:34:13,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 23:34:13,827 INFO L203 MainTranslator]: Completed pre-run [2021-08-12 23:34:13,842 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-12 23:34:13,859 WARN L224 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] [2021-08-12 23:34:13,862 WARN L224 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] [2021-08-12 23:34:13,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 23:34:13,915 INFO L208 MainTranslator]: Completed translation [2021-08-12 23:34:13,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 11:34:13 WrapperNode [2021-08-12 23:34:13,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-12 23:34:13,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-12 23:34:13,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-12 23:34:13,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-12 23:34:13,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 11:34:13" (1/1) ... [2021-08-12 23:34:13,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 11:34:13" (1/1) ... [2021-08-12 23:34:13,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-12 23:34:13,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-12 23:34:13,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-12 23:34:13,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-12 23:34:13,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 11:34:13" (1/1) ... [2021-08-12 23:34:13,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 11:34:13" (1/1) ... [2021-08-12 23:34:13,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 11:34:13" (1/1) ... [2021-08-12 23:34:13,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 11:34:13" (1/1) ... [2021-08-12 23:34:13,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 11:34:13" (1/1) ... [2021-08-12 23:34:13,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 11:34:13" (1/1) ... [2021-08-12 23:34:13,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 11:34:13" (1/1) ... [2021-08-12 23:34:13,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-12 23:34:13,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-12 23:34:13,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-12 23:34:13,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-12 23:34:13,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 11:34:13" (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 [2021-08-12 23:34:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-12 23:34:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-08-12 23:34:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-08-12 23:34:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-08-12 23:34:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-08-12 23:34:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-12 23:34:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-12 23:34:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-12 23:34:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-12 23:34:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-12 23:34:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-12 23:34:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-12 23:34:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-12 23:34:14,043 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-12 23:34:14,316 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-12 23:34:14,316 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-12 23:34:14,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 11:34:14 BoogieIcfgContainer [2021-08-12 23:34:14,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-12 23:34:14,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-12 23:34:14,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-12 23:34:14,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-12 23:34:14,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.08 11:34:13" (1/3) ... [2021-08-12 23:34:14,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f973b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 11:34:14, skipping insertion in model container [2021-08-12 23:34:14,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 11:34:13" (2/3) ... [2021-08-12 23:34:14,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f973b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 11:34:14, skipping insertion in model container [2021-08-12 23:34:14,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 11:34:14" (3/3) ... [2021-08-12 23:34:14,322 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.i [2021-08-12 23:34:14,325 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-12 23:34:14,326 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-12 23:34:14,326 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-12 23:34:14,346 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,346 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,346 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,347 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,347 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,347 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,347 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,347 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,348 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,348 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,366 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,366 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,366 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,366 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,366 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,367 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,367 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,367 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,367 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,367 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,367 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,367 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,367 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,368 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,368 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,368 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,368 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,368 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,368 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,368 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,368 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,368 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,369 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,369 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,369 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,369 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,369 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,369 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,369 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,369 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,369 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,370 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,370 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,370 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,370 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,370 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,370 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,370 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,370 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,370 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,371 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,371 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,371 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,371 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,375 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,375 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,375 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,375 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,375 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,375 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,375 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,378 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,378 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,378 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,378 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,378 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,378 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,380 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,380 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,380 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,380 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,380 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,380 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,380 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 23:34:14,391 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-08-12 23:34:14,405 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-12 23:34:14,417 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-12 23:34:14,417 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-12 23:34:14,417 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-12 23:34:14,417 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-12 23:34:14,417 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-12 23:34:14,417 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-12 23:34:14,417 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-12 23:34:14,417 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-12 23:34:14,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 131 transitions, 284 flow [2021-08-12 23:34:14,472 INFO L129 PetriNetUnfolder]: 25/131 cut-off events. [2021-08-12 23:34:14,473 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-08-12 23:34:14,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 131 events. 25/131 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. 0/105 useless extension candidates. Maximal degree in co-relation 101. Up to 5 conditions per place. [2021-08-12 23:34:14,476 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 131 transitions, 284 flow [2021-08-12 23:34:14,481 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 119 transitions, 250 flow [2021-08-12 23:34:14,489 INFO L129 PetriNetUnfolder]: 2/36 cut-off events. [2021-08-12 23:34:14,489 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-12 23:34:14,489 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:34:14,490 INFO L266 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] [2021-08-12 23:34:14,490 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 23:34:14,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:34:14,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1915636410, now seen corresponding path program 1 times [2021-08-12 23:34:14,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:34:14,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013560573] [2021-08-12 23:34:14,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:34:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:34:14,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:14,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:14,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:14,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:14,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:34:14,654 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:34:14,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013560573] [2021-08-12 23:34:14,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013560573] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:34:14,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:34:14,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-12 23:34:14,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635713553] [2021-08-12 23:34:14,661 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-08-12 23:34:14,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:34:14,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-12 23:34:14,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-12 23:34:14,673 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 131 [2021-08-12 23:34:14,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 119 transitions, 250 flow. Second operand has 2 states, 2 states have (on average 119.5) internal successors, (239), 2 states have internal predecessors, (239), 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) [2021-08-12 23:34:14,677 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:34:14,677 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 131 [2021-08-12 23:34:14,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:34:14,712 INFO L129 PetriNetUnfolder]: 12/109 cut-off events. [2021-08-12 23:34:14,713 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-08-12 23:34:14,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 109 events. 12/109 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 205 event pairs, 0 based on Foata normal form. 12/107 useless extension candidates. Maximal degree in co-relation 115. Up to 3 conditions per place. [2021-08-12 23:34:14,715 INFO L132 encePairwiseOnDemand]: 119/131 looper letters, 0 selfloop transitions, 0 changer transitions 0/107 dead transitions. [2021-08-12 23:34:14,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 107 transitions, 226 flow [2021-08-12 23:34:14,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-12 23:34:14,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-08-12 23:34:14,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 250 transitions. [2021-08-12 23:34:14,725 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9541984732824428 [2021-08-12 23:34:14,725 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 250 transitions. [2021-08-12 23:34:14,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 250 transitions. [2021-08-12 23:34:14,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:34:14,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 250 transitions. [2021-08-12 23:34:14,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 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) [2021-08-12 23:34:14,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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) [2021-08-12 23:34:14,738 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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) [2021-08-12 23:34:14,738 INFO L348 CegarLoopForPetriNet]: 101 programPoint places, 1 predicate places. [2021-08-12 23:34:14,739 INFO L482 AbstractCegarLoop]: Abstraction has has 102 places, 107 transitions, 226 flow [2021-08-12 23:34:14,739 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 119.5) internal successors, (239), 2 states have internal predecessors, (239), 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) [2021-08-12 23:34:14,739 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:34:14,739 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:34:14,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-12 23:34:14,739 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 23:34:14,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:34:14,740 INFO L82 PathProgramCache]: Analyzing trace with hash -977585031, now seen corresponding path program 1 times [2021-08-12 23:34:14,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:34:14,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041021526] [2021-08-12 23:34:14,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:34:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:34:14,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:14,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:14,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:14,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 23:34:14,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:14,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:14,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:34:14,820 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:34:14,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041021526] [2021-08-12 23:34:14,820 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041021526] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:34:14,821 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:34:14,821 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-12 23:34:14,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791231431] [2021-08-12 23:34:14,822 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 23:34:14,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:34:14,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 23:34:14,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 23:34:14,828 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 131 [2021-08-12 23:34:14,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 107 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2021-08-12 23:34:14,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:34:14,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 131 [2021-08-12 23:34:14,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:34:14,876 INFO L129 PetriNetUnfolder]: 19/169 cut-off events. [2021-08-12 23:34:14,876 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-08-12 23:34:14,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 169 events. 19/169 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 516 event pairs, 2 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 208. Up to 18 conditions per place. [2021-08-12 23:34:14,881 INFO L132 encePairwiseOnDemand]: 126/131 looper letters, 7 selfloop transitions, 3 changer transitions 0/110 dead transitions. [2021-08-12 23:34:14,882 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 110 transitions, 252 flow [2021-08-12 23:34:14,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 23:34:14,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 23:34:14,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2021-08-12 23:34:14,889 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8854961832061069 [2021-08-12 23:34:14,889 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 348 transitions. [2021-08-12 23:34:14,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 348 transitions. [2021-08-12 23:34:14,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:34:14,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 348 transitions. [2021-08-12 23:34:14,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2021-08-12 23:34:14,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2021-08-12 23:34:14,892 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2021-08-12 23:34:14,892 INFO L348 CegarLoopForPetriNet]: 101 programPoint places, 3 predicate places. [2021-08-12 23:34:14,892 INFO L482 AbstractCegarLoop]: Abstraction has has 104 places, 110 transitions, 252 flow [2021-08-12 23:34:14,892 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2021-08-12 23:34:14,892 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:34:14,893 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:34:14,893 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-12 23:34:14,893 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 23:34:14,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:34:14,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1653746266, now seen corresponding path program 1 times [2021-08-12 23:34:14,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:34:14,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190407362] [2021-08-12 23:34:14,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:34:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:34:14,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:14,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:14,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:14,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 23:34:14,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:14,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:14,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:34:14,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:34:14,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190407362] [2021-08-12 23:34:14,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190407362] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:34:14,951 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:34:14,951 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-12 23:34:14,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495965398] [2021-08-12 23:34:14,951 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 23:34:14,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:34:14,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 23:34:14,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 23:34:14,953 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 131 [2021-08-12 23:34:14,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 110 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2021-08-12 23:34:14,953 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:34:14,953 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 131 [2021-08-12 23:34:14,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:34:14,971 INFO L129 PetriNetUnfolder]: 14/151 cut-off events. [2021-08-12 23:34:14,971 INFO L130 PetriNetUnfolder]: For 11/17 co-relation queries the response was YES. [2021-08-12 23:34:14,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 151 events. 14/151 cut-off events. For 11/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 408 event pairs, 2 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 199. Up to 11 conditions per place. [2021-08-12 23:34:14,972 INFO L132 encePairwiseOnDemand]: 127/131 looper letters, 6 selfloop transitions, 2 changer transitions 0/108 dead transitions. [2021-08-12 23:34:14,972 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 108 transitions, 260 flow [2021-08-12 23:34:14,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 23:34:14,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 23:34:14,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2021-08-12 23:34:14,973 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8804071246819338 [2021-08-12 23:34:14,973 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions. [2021-08-12 23:34:14,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions. [2021-08-12 23:34:14,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:34:14,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions. [2021-08-12 23:34:14,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2021-08-12 23:34:14,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2021-08-12 23:34:14,976 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2021-08-12 23:34:14,976 INFO L348 CegarLoopForPetriNet]: 101 programPoint places, 5 predicate places. [2021-08-12 23:34:14,976 INFO L482 AbstractCegarLoop]: Abstraction has has 106 places, 108 transitions, 260 flow [2021-08-12 23:34:14,976 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2021-08-12 23:34:14,976 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:34:14,976 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:34:14,976 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-12 23:34:14,977 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 23:34:14,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:34:14,977 INFO L82 PathProgramCache]: Analyzing trace with hash -774425511, now seen corresponding path program 1 times [2021-08-12 23:34:14,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:34:14,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618240992] [2021-08-12 23:34:14,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:34:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:34:15,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:15,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:15,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:15,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 23:34:15,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:15,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 23:34:15,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:15,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:15,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:34:15,049 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:34:15,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618240992] [2021-08-12 23:34:15,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618240992] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:34:15,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:34:15,050 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-12 23:34:15,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585873203] [2021-08-12 23:34:15,050 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-12 23:34:15,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:34:15,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-12 23:34:15,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-12 23:34:15,051 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2021-08-12 23:34:15,052 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 108 transitions, 260 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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) [2021-08-12 23:34:15,052 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:34:15,052 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2021-08-12 23:34:15,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:34:15,238 INFO L129 PetriNetUnfolder]: 396/1156 cut-off events. [2021-08-12 23:34:15,238 INFO L130 PetriNetUnfolder]: For 51/59 co-relation queries the response was YES. [2021-08-12 23:34:15,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1906 conditions, 1156 events. 396/1156 cut-off events. For 51/59 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7640 event pairs, 43 based on Foata normal form. 0/995 useless extension candidates. Maximal degree in co-relation 1899. Up to 259 conditions per place. [2021-08-12 23:34:15,245 INFO L132 encePairwiseOnDemand]: 117/131 looper letters, 45 selfloop transitions, 5 changer transitions 24/156 dead transitions. [2021-08-12 23:34:15,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 156 transitions, 504 flow [2021-08-12 23:34:15,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-12 23:34:15,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-12 23:34:15,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 547 transitions. [2021-08-12 23:34:15,247 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8351145038167939 [2021-08-12 23:34:15,247 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 547 transitions. [2021-08-12 23:34:15,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 547 transitions. [2021-08-12 23:34:15,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:34:15,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 547 transitions. [2021-08-12 23:34:15,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 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) [2021-08-12 23:34:15,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-08-12 23:34:15,252 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-08-12 23:34:15,252 INFO L348 CegarLoopForPetriNet]: 101 programPoint places, 9 predicate places. [2021-08-12 23:34:15,252 INFO L482 AbstractCegarLoop]: Abstraction has has 110 places, 156 transitions, 504 flow [2021-08-12 23:34:15,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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) [2021-08-12 23:34:15,252 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:34:15,253 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:34:15,253 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-12 23:34:15,253 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 23:34:15,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:34:15,253 INFO L82 PathProgramCache]: Analyzing trace with hash 718032819, now seen corresponding path program 2 times [2021-08-12 23:34:15,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:34:15,256 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367959494] [2021-08-12 23:34:15,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:34:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:34:15,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:15,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:15,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:15,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 23:34:15,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:15,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 23:34:15,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:15,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:15,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:34:15,316 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:34:15,316 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367959494] [2021-08-12 23:34:15,317 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367959494] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:34:15,317 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:34:15,317 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-12 23:34:15,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841080558] [2021-08-12 23:34:15,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-12 23:34:15,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:34:15,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-12 23:34:15,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-12 23:34:15,319 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 131 [2021-08-12 23:34:15,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 156 transitions, 504 flow. Second operand has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 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) [2021-08-12 23:34:15,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:34:15,320 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 131 [2021-08-12 23:34:15,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:34:15,567 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([365] L777-->L780: Formula: (= v_~x~0_1 2) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0][52], [113#true, 115#true, 116#true, 20#L733true, 38#L780true, 40#L846-4true, 137#(= 2 ~x~0), 121#(= ~X~0 0), 123#true, 127#true]) [2021-08-12 23:34:15,567 INFO L384 tUnfolder$Statistics]: this new event has 63 ancestors and is cut-off event [2021-08-12 23:34:15,568 INFO L387 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2021-08-12 23:34:15,568 INFO L387 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2021-08-12 23:34:15,568 INFO L387 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2021-08-12 23:34:15,579 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([365] L777-->L780: Formula: (= v_~x~0_1 2) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0][52], [113#true, 115#true, 116#true, 38#L780true, 40#L846-4true, 137#(= 2 ~x~0), 121#(= ~X~0 0), 123#true, 111#L735true, 127#true]) [2021-08-12 23:34:15,579 INFO L384 tUnfolder$Statistics]: this new event has 64 ancestors and is cut-off event [2021-08-12 23:34:15,579 INFO L387 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2021-08-12 23:34:15,579 INFO L387 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2021-08-12 23:34:15,579 INFO L387 tUnfolder$Statistics]: existing Event has 56 ancestors and is cut-off event [2021-08-12 23:34:15,595 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([365] L777-->L780: Formula: (= v_~x~0_1 2) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0][52], [113#true, 115#true, 116#true, 38#L780true, 40#L846-4true, 137#(= 2 ~x~0), 121#(= ~X~0 0), 123#true, 62#L710true, 127#true]) [2021-08-12 23:34:15,596 INFO L384 tUnfolder$Statistics]: this new event has 66 ancestors and is cut-off event [2021-08-12 23:34:15,596 INFO L387 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2021-08-12 23:34:15,596 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-08-12 23:34:15,596 INFO L387 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2021-08-12 23:34:15,664 INFO L129 PetriNetUnfolder]: 1263/3799 cut-off events. [2021-08-12 23:34:15,664 INFO L130 PetriNetUnfolder]: For 154/174 co-relation queries the response was YES. [2021-08-12 23:34:15,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6291 conditions, 3799 events. 1263/3799 cut-off events. For 154/174 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 32932 event pairs, 128 based on Foata normal form. 0/3212 useless extension candidates. Maximal degree in co-relation 6283. Up to 756 conditions per place. [2021-08-12 23:34:15,681 INFO L132 encePairwiseOnDemand]: 127/131 looper letters, 17 selfloop transitions, 6 changer transitions 18/171 dead transitions. [2021-08-12 23:34:15,681 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 171 transitions, 580 flow [2021-08-12 23:34:15,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-12 23:34:15,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-12 23:34:15,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 579 transitions. [2021-08-12 23:34:15,683 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8839694656488549 [2021-08-12 23:34:15,683 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 579 transitions. [2021-08-12 23:34:15,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 579 transitions. [2021-08-12 23:34:15,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:34:15,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 579 transitions. [2021-08-12 23:34:15,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.8) internal successors, (579), 5 states have internal predecessors, (579), 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) [2021-08-12 23:34:15,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-08-12 23:34:15,686 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-08-12 23:34:15,686 INFO L348 CegarLoopForPetriNet]: 101 programPoint places, 13 predicate places. [2021-08-12 23:34:15,686 INFO L482 AbstractCegarLoop]: Abstraction has has 114 places, 171 transitions, 580 flow [2021-08-12 23:34:15,686 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 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) [2021-08-12 23:34:15,686 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:34:15,686 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:34:15,686 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-12 23:34:15,686 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 23:34:15,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:34:15,687 INFO L82 PathProgramCache]: Analyzing trace with hash 414682995, now seen corresponding path program 3 times [2021-08-12 23:34:15,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:34:15,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566175742] [2021-08-12 23:34:15,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:34:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:34:15,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:15,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:15,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:15,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 23:34:15,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:15,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 23:34:15,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:15,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:15,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:34:15,765 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:34:15,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566175742] [2021-08-12 23:34:15,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566175742] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:34:15,765 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:34:15,765 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-12 23:34:15,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126373261] [2021-08-12 23:34:15,766 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-12 23:34:15,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:34:15,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-12 23:34:15,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-12 23:34:15,767 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2021-08-12 23:34:15,767 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 171 transitions, 580 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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) [2021-08-12 23:34:15,768 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:34:15,768 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2021-08-12 23:34:15,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:34:16,222 INFO L129 PetriNetUnfolder]: 2050/5878 cut-off events. [2021-08-12 23:34:16,223 INFO L130 PetriNetUnfolder]: For 1401/1746 co-relation queries the response was YES. [2021-08-12 23:34:16,295 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12637 conditions, 5878 events. 2050/5878 cut-off events. For 1401/1746 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 52356 event pairs, 252 based on Foata normal form. 26/4992 useless extension candidates. Maximal degree in co-relation 12628. Up to 1823 conditions per place. [2021-08-12 23:34:16,303 INFO L132 encePairwiseOnDemand]: 117/131 looper letters, 62 selfloop transitions, 6 changer transitions 45/220 dead transitions. [2021-08-12 23:34:16,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 220 transitions, 959 flow [2021-08-12 23:34:16,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-12 23:34:16,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-12 23:34:16,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 548 transitions. [2021-08-12 23:34:16,305 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8366412213740458 [2021-08-12 23:34:16,305 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 548 transitions. [2021-08-12 23:34:16,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 548 transitions. [2021-08-12 23:34:16,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:34:16,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 548 transitions. [2021-08-12 23:34:16,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.6) internal successors, (548), 5 states have internal predecessors, (548), 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) [2021-08-12 23:34:16,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-08-12 23:34:16,308 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-08-12 23:34:16,308 INFO L348 CegarLoopForPetriNet]: 101 programPoint places, 17 predicate places. [2021-08-12 23:34:16,308 INFO L482 AbstractCegarLoop]: Abstraction has has 118 places, 220 transitions, 959 flow [2021-08-12 23:34:16,308 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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) [2021-08-12 23:34:16,308 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:34:16,308 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:34:16,309 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-12 23:34:16,309 INFO L430 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 23:34:16,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:34:16,309 INFO L82 PathProgramCache]: Analyzing trace with hash -403056021, now seen corresponding path program 4 times [2021-08-12 23:34:16,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:34:16,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156093547] [2021-08-12 23:34:16,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:34:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:34:16,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:16,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:16,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:16,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 23:34:16,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:16,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 23:34:16,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:16,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:34:16,334 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:34:16,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156093547] [2021-08-12 23:34:16,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156093547] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:34:16,334 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:34:16,334 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-12 23:34:16,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033349731] [2021-08-12 23:34:16,335 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-12 23:34:16,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:34:16,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-12 23:34:16,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-12 23:34:16,336 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 131 [2021-08-12 23:34:16,336 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 220 transitions, 959 flow. Second operand has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 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) [2021-08-12 23:34:16,336 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:34:16,337 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 131 [2021-08-12 23:34:16,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:34:16,434 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([408] L707-->L710: Formula: (= v_~x~0_3 1) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0][59], [113#true, 115#true, 116#true, 38#L780true, 135#true, 152#(= ~x~0 1), 40#L846-4true, 121#(= ~X~0 0), 123#true, 142#true, 62#L710true, 127#true]) [2021-08-12 23:34:16,434 INFO L384 tUnfolder$Statistics]: this new event has 52 ancestors and is cut-off event [2021-08-12 23:34:16,434 INFO L387 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2021-08-12 23:34:16,434 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-08-12 23:34:16,434 INFO L387 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2021-08-12 23:34:16,987 INFO L129 PetriNetUnfolder]: 3154/9051 cut-off events. [2021-08-12 23:34:16,987 INFO L130 PetriNetUnfolder]: For 2559/3089 co-relation queries the response was YES. [2021-08-12 23:34:17,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20091 conditions, 9051 events. 3154/9051 cut-off events. For 2559/3089 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 85583 event pairs, 387 based on Foata normal form. 43/7756 useless extension candidates. Maximal degree in co-relation 20081. Up to 2563 conditions per place. [2021-08-12 23:34:17,119 INFO L132 encePairwiseOnDemand]: 127/131 looper letters, 29 selfloop transitions, 11 changer transitions 43/242 dead transitions. [2021-08-12 23:34:17,119 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 242 transitions, 1130 flow [2021-08-12 23:34:17,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-12 23:34:17,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-12 23:34:17,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 580 transitions. [2021-08-12 23:34:17,121 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8854961832061069 [2021-08-12 23:34:17,121 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 580 transitions. [2021-08-12 23:34:17,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 580 transitions. [2021-08-12 23:34:17,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:34:17,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 580 transitions. [2021-08-12 23:34:17,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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) [2021-08-12 23:34:17,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-08-12 23:34:17,123 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-08-12 23:34:17,123 INFO L348 CegarLoopForPetriNet]: 101 programPoint places, 21 predicate places. [2021-08-12 23:34:17,123 INFO L482 AbstractCegarLoop]: Abstraction has has 122 places, 242 transitions, 1130 flow [2021-08-12 23:34:17,124 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 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) [2021-08-12 23:34:17,124 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:34:17,124 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:34:17,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-12 23:34:17,124 INFO L430 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 23:34:17,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:34:17,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1828818293, now seen corresponding path program 1 times [2021-08-12 23:34:17,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:34:17,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012811603] [2021-08-12 23:34:17,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:34:17,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:34:17,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:17,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:17,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:17,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 23:34:17,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:17,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 23:34:17,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:17,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:17,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:34:17,149 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:34:17,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012811603] [2021-08-12 23:34:17,149 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012811603] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:34:17,149 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:34:17,149 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-12 23:34:17,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744156835] [2021-08-12 23:34:17,149 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-12 23:34:17,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:34:17,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-12 23:34:17,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-12 23:34:17,150 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 131 [2021-08-12 23:34:17,151 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 242 transitions, 1130 flow. Second operand has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 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) [2021-08-12 23:34:17,151 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:34:17,151 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 131 [2021-08-12 23:34:17,151 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:34:17,234 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([408] L707-->L710: Formula: (= v_~x~0_3 1) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0][59], [38#L780true, 135#true, 40#L846-4true, 142#true, 113#true, 115#true, 116#true, 152#(= ~x~0 1), 121#(= ~X~0 0), 123#true, 62#L710true, 159#(= ~b2~0 1), 127#true]) [2021-08-12 23:34:17,235 INFO L384 tUnfolder$Statistics]: this new event has 52 ancestors and is cut-off event [2021-08-12 23:34:17,235 INFO L387 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2021-08-12 23:34:17,235 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-08-12 23:34:17,235 INFO L387 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2021-08-12 23:34:17,682 INFO L129 PetriNetUnfolder]: 2528/7641 cut-off events. [2021-08-12 23:34:17,682 INFO L130 PetriNetUnfolder]: For 2053/2466 co-relation queries the response was YES. [2021-08-12 23:34:17,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17296 conditions, 7641 events. 2528/7641 cut-off events. For 2053/2466 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 72670 event pairs, 364 based on Foata normal form. 11/6615 useless extension candidates. Maximal degree in co-relation 17285. Up to 2398 conditions per place. [2021-08-12 23:34:17,712 INFO L132 encePairwiseOnDemand]: 124/131 looper letters, 10 selfloop transitions, 7 changer transitions 77/248 dead transitions. [2021-08-12 23:34:17,712 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 248 transitions, 1166 flow [2021-08-12 23:34:17,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-12 23:34:17,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-12 23:34:17,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 571 transitions. [2021-08-12 23:34:17,713 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8717557251908397 [2021-08-12 23:34:17,713 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 571 transitions. [2021-08-12 23:34:17,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 571 transitions. [2021-08-12 23:34:17,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:34:17,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 571 transitions. [2021-08-12 23:34:17,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 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) [2021-08-12 23:34:17,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-08-12 23:34:17,716 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-08-12 23:34:17,716 INFO L348 CegarLoopForPetriNet]: 101 programPoint places, 25 predicate places. [2021-08-12 23:34:17,716 INFO L482 AbstractCegarLoop]: Abstraction has has 126 places, 248 transitions, 1166 flow [2021-08-12 23:34:17,716 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 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) [2021-08-12 23:34:17,716 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:34:17,716 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:34:17,716 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-12 23:34:17,717 INFO L430 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 23:34:17,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:34:17,717 INFO L82 PathProgramCache]: Analyzing trace with hash 325965440, now seen corresponding path program 1 times [2021-08-12 23:34:17,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:34:17,717 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065367315] [2021-08-12 23:34:17,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:34:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:34:17,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:17,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:17,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:17,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 23:34:17,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:17,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 23:34:17,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:34:17,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:34:17,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:34:17,739 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:34:17,739 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065367315] [2021-08-12 23:34:17,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065367315] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:34:17,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:34:17,740 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-12 23:34:17,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109687851] [2021-08-12 23:34:17,740 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-12 23:34:17,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:34:17,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-12 23:34:17,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-12 23:34:17,741 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 131 [2021-08-12 23:34:17,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 248 transitions, 1166 flow. Second operand has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 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) [2021-08-12 23:34:17,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:34:17,741 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 131 [2021-08-12 23:34:17,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:34:17,915 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([408] L707-->L710: Formula: (= v_~x~0_3 1) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0][62], [38#L780true, 166#(= ~b1~0 1), 135#true, 40#L846-4true, 142#true, 113#true, 115#true, 116#true, 152#(= ~x~0 1), 121#(= ~X~0 0), 123#true, 62#L710true, 127#true, 159#(= ~b2~0 1)]) [2021-08-12 23:34:17,915 INFO L384 tUnfolder$Statistics]: this new event has 52 ancestors and is cut-off event [2021-08-12 23:34:17,915 INFO L387 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2021-08-12 23:34:17,915 INFO L387 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2021-08-12 23:34:17,915 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-08-12 23:34:18,272 INFO L129 PetriNetUnfolder]: 1906/5935 cut-off events. [2021-08-12 23:34:18,272 INFO L130 PetriNetUnfolder]: For 1622/1932 co-relation queries the response was YES. [2021-08-12 23:34:18,295 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13816 conditions, 5935 events. 1906/5935 cut-off events. For 1622/1932 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 55155 event pairs, 302 based on Foata normal form. 7/5139 useless extension candidates. Maximal degree in co-relation 13804. Up to 1589 conditions per place. [2021-08-12 23:34:18,300 INFO L132 encePairwiseOnDemand]: 124/131 looper letters, 0 selfloop transitions, 0 changer transitions 247/247 dead transitions. [2021-08-12 23:34:18,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 247 transitions, 1187 flow [2021-08-12 23:34:18,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-12 23:34:18,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-12 23:34:18,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 572 transitions. [2021-08-12 23:34:18,302 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8732824427480916 [2021-08-12 23:34:18,302 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 572 transitions. [2021-08-12 23:34:18,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 572 transitions. [2021-08-12 23:34:18,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:34:18,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 572 transitions. [2021-08-12 23:34:18,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 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) [2021-08-12 23:34:18,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-08-12 23:34:18,304 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-08-12 23:34:18,305 INFO L348 CegarLoopForPetriNet]: 101 programPoint places, 25 predicate places. [2021-08-12 23:34:18,305 INFO L482 AbstractCegarLoop]: Abstraction has has 126 places, 247 transitions, 1187 flow [2021-08-12 23:34:18,305 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 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) [2021-08-12 23:34:18,305 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown