/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-CovSimpl-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 15:03:14,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 15:03:14,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 15:03:14,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 15:03:14,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 15:03:14,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 15:03:14,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 15:03:14,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 15:03:14,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 15:03:14,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 15:03:14,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 15:03:14,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 15:03:14,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 15:03:14,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 15:03:14,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 15:03:14,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 15:03:14,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 15:03:14,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 15:03:14,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 15:03:14,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 15:03:14,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 15:03:14,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 15:03:14,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 15:03:14,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 15:03:14,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-13 15:03:14,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-13 15:03:14,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-13 15:03:14,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-13 15:03:14,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-13 15:03:14,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-13 15:03:14,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-13 15:03:14,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-13 15:03:14,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-13 15:03:14,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-13 15:03:14,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-13 15:03:14,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-13 15:03:14,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-13 15:03:14,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-13 15:03:14,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 15:03:14,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 15:03:14,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 15:03:14,873 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-CovSimpl-Hitting.epf [2021-08-13 15:03:14,888 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 15:03:14,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 15:03:14,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 15:03:14,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 15:03:14,889 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 15:03:14,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 15:03:14,890 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 15:03:14,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 15:03:14,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 15:03:14,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 15:03:14,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 15:03:14,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 15:03:14,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 15:03:14,891 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 15:03:14,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 15:03:14,892 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 15:03:14,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 15:03:14,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 15:03:14,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 15:03:14,892 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 15:03:14,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 15:03:14,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 15:03:14,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 15:03:14,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 15:03:14,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 15:03:14,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 15:03:14,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 15:03:14,893 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 15:03:14,893 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 15:03:14,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 15:03:14,894 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 15:03:14,894 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 15:03:14,894 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 15:03:14,894 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 15:03:15,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 15:03:15,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 15:03:15,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 15:03:15,140 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 15:03:15,140 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 15:03:15,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2021-08-13 15:03:15,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f13dc82b/28690dbf2c694582a7686dafb16f6318/FLAG0026c395f [2021-08-13 15:03:15,598 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 15:03:15,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2021-08-13 15:03:15,619 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f13dc82b/28690dbf2c694582a7686dafb16f6318/FLAG0026c395f [2021-08-13 15:03:15,629 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f13dc82b/28690dbf2c694582a7686dafb16f6318 [2021-08-13 15:03:15,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 15:03:15,631 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 15:03:15,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 15:03:15,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 15:03:15,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 15:03:15,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 03:03:15" (1/1) ... [2021-08-13 15:03:15,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa2efa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:03:15, skipping insertion in model container [2021-08-13 15:03:15,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 03:03:15" (1/1) ... [2021-08-13 15:03:15,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 15:03:15,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 15:03:15,762 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-13 15:03:15,970 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-ext/45_monabsex1_vs.i[30633,30646] [2021-08-13 15:03:15,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 15:03:15,984 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 15:03:16,001 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-13 15:03:16,015 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-ext/45_monabsex1_vs.i[30633,30646] [2021-08-13 15:03:16,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 15:03:16,069 INFO L208 MainTranslator]: Completed translation [2021-08-13 15:03:16,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:03:16 WrapperNode [2021-08-13 15:03:16,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 15:03:16,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 15:03:16,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 15:03:16,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 15:03:16,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:03:16" (1/1) ... [2021-08-13 15:03:16,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:03:16" (1/1) ... [2021-08-13 15:03:16,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 15:03:16,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 15:03:16,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 15:03:16,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 15:03:16,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:03:16" (1/1) ... [2021-08-13 15:03:16,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:03:16" (1/1) ... [2021-08-13 15:03:16,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:03:16" (1/1) ... [2021-08-13 15:03:16,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:03:16" (1/1) ... [2021-08-13 15:03:16,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:03:16" (1/1) ... [2021-08-13 15:03:16,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:03:16" (1/1) ... [2021-08-13 15:03:16,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:03:16" (1/1) ... [2021-08-13 15:03:16,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 15:03:16,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 15:03:16,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 15:03:16,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 15:03:16,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:03:16" (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 [2021-08-13 15:03:16,168 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-08-13 15:03:16,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-08-13 15:03:16,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 15:03:16,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 15:03:16,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 15:03:16,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 15:03:16,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 15:03:16,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 15:03:16,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 15:03:16,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 15:03:16,169 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 15:03:16,381 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 15:03:16,382 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-13 15:03:16,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 03:03:16 BoogieIcfgContainer [2021-08-13 15:03:16,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 15:03:16,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 15:03:16,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 15:03:16,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 15:03:16,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 03:03:15" (1/3) ... [2021-08-13 15:03:16,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb0fc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 03:03:16, skipping insertion in model container [2021-08-13 15:03:16,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:03:16" (2/3) ... [2021-08-13 15:03:16,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb0fc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 03:03:16, skipping insertion in model container [2021-08-13 15:03:16,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 03:03:16" (3/3) ... [2021-08-13 15:03:16,399 INFO L111 eAbstractionObserver]: Analyzing ICFG 45_monabsex1_vs.i [2021-08-13 15:03:16,403 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 15:03:16,403 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 15:03:16,403 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 15:03:16,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,439 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,440 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,440 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,440 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,440 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,440 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,440 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,441 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,441 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,441 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,441 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,441 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,441 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,441 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,442 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,442 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,442 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,442 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,442 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,442 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,442 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,443 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,443 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,445 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,445 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,445 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,445 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,445 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,445 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,453 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 15:03:16,468 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-13 15:03:16,488 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 15:03:16,488 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 15:03:16,489 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 15:03:16,489 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 15:03:16,489 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 15:03:16,489 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 15:03:16,489 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 15:03:16,489 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 15:03:16,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 38 transitions, 81 flow [2021-08-13 15:03:16,516 INFO L129 PetriNetUnfolder]: 2/48 cut-off events. [2021-08-13 15:03:16,517 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 15:03:16,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 48 events. 2/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 24. Up to 4 conditions per place. [2021-08-13 15:03:16,518 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 38 transitions, 81 flow [2021-08-13 15:03:16,521 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 38 transitions, 81 flow [2021-08-13 15:03:16,550 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2021-08-13 15:03:16,550 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 15:03:16,550 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:16,551 INFO L266 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:03:16,551 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 15:03:16,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:16,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1393201750, now seen corresponding path program 1 times [2021-08-13 15:03:16,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:16,560 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312625129] [2021-08-13 15:03:16,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 15:03:16,745 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 15:03:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 15:03:16,783 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 15:03:16,802 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-13 15:03:16,802 INFO L651 BasicCegarLoop]: Counterexample might be feasible [2021-08-13 15:03:16,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 15:03:16,803 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-08-13 15:03:16,803 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-08-13 15:03:16,813 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,813 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,813 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,813 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,813 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,813 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,813 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,814 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,814 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,814 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,814 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,814 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,814 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,814 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,815 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,815 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,815 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,815 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,815 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,815 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,816 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,816 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,816 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,817 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,817 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,817 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,817 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,817 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,818 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,820 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,820 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,820 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,821 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,824 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,824 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,824 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,824 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,824 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,824 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,824 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,824 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,824 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,825 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,825 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,825 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,825 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,826 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,826 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,826 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,826 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,830 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,830 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,830 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,830 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,830 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,830 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,832 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,832 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,832 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,832 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,832 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,832 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:16,835 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 15:03:16,835 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-13 15:03:16,838 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 15:03:16,838 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 15:03:16,839 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 15:03:16,839 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 15:03:16,839 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 15:03:16,839 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 15:03:16,839 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 15:03:16,839 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 15:03:16,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 49 transitions, 110 flow [2021-08-13 15:03:16,858 INFO L129 PetriNetUnfolder]: 3/71 cut-off events. [2021-08-13 15:03:16,859 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-08-13 15:03:16,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 3/71 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 49. Up to 6 conditions per place. [2021-08-13 15:03:16,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 49 transitions, 110 flow [2021-08-13 15:03:16,860 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 49 transitions, 110 flow [2021-08-13 15:03:16,869 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2021-08-13 15:03:16,869 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-08-13 15:03:16,869 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:16,869 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] [2021-08-13 15:03:16,869 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:03:16,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:16,869 INFO L82 PathProgramCache]: Analyzing trace with hash -276500888, now seen corresponding path program 1 times [2021-08-13 15:03:16,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:16,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868169238] [2021-08-13 15:03:16,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:16,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:16,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:16,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:16,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:16,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:03:16,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:16,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868169238] [2021-08-13 15:03:16,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868169238] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:16,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:16,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 15:03:16,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112103002] [2021-08-13 15:03:16,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 15:03:16,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:16,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 15:03:16,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 15:03:16,978 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 49 [2021-08-13 15:03:16,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2021-08-13 15:03:16,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:16,981 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 49 [2021-08-13 15:03:16,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:17,044 INFO L129 PetriNetUnfolder]: 15/103 cut-off events. [2021-08-13 15:03:17,045 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-08-13 15:03:17,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 103 events. 15/103 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 264 event pairs, 8 based on Foata normal form. 32/121 useless extension candidates. Maximal degree in co-relation 119. Up to 32 conditions per place. [2021-08-13 15:03:17,047 INFO L132 encePairwiseOnDemand]: 43/49 looper letters, 12 selfloop transitions, 3 changer transitions 0/47 dead transitions. [2021-08-13 15:03:17,047 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 47 transitions, 136 flow [2021-08-13 15:03:17,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 15:03:17,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 15:03:17,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2021-08-13 15:03:17,055 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8707482993197279 [2021-08-13 15:03:17,055 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 128 transitions. [2021-08-13 15:03:17,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 128 transitions. [2021-08-13 15:03:17,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:17,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 128 transitions. [2021-08-13 15:03:17,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-08-13 15:03:17,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2021-08-13 15:03:17,068 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2021-08-13 15:03:17,068 INFO L348 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2021-08-13 15:03:17,068 INFO L482 AbstractCegarLoop]: Abstraction has has 50 places, 47 transitions, 136 flow [2021-08-13 15:03:17,068 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2021-08-13 15:03:17,069 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:17,069 INFO L266 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:03:17,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 15:03:17,069 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:03:17,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:17,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1645188757, now seen corresponding path program 1 times [2021-08-13 15:03:17,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:17,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700672677] [2021-08-13 15:03:17,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 15:03:17,096 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 15:03:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 15:03:17,120 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 15:03:17,125 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-13 15:03:17,125 INFO L651 BasicCegarLoop]: Counterexample might be feasible [2021-08-13 15:03:17,126 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 15:03:17,126 WARN L235 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-08-13 15:03:17,126 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-08-13 15:03:17,136 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,136 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,137 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,140 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,140 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,140 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,140 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,141 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,141 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,142 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,142 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,142 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,142 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,142 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,143 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,143 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,143 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,143 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,143 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,144 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,144 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,145 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,145 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,145 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,145 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,145 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,145 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,145 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,145 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,147 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,147 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,147 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,151 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,151 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,151 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,151 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,151 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,151 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,151 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,151 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,152 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,152 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,152 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,152 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,153 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,153 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,153 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,153 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,153 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,153 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,154 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,155 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,155 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,162 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,162 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,163 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,163 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,163 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,164 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,164 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,164 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:17,165 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 15:03:17,165 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-13 15:03:17,166 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 15:03:17,166 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 15:03:17,166 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 15:03:17,166 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 15:03:17,166 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 15:03:17,166 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 15:03:17,166 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 15:03:17,166 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 15:03:17,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 60 transitions, 141 flow [2021-08-13 15:03:17,174 INFO L129 PetriNetUnfolder]: 4/94 cut-off events. [2021-08-13 15:03:17,174 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-08-13 15:03:17,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 94 events. 4/94 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 149 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 75. Up to 8 conditions per place. [2021-08-13 15:03:17,174 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 60 transitions, 141 flow [2021-08-13 15:03:17,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 60 transitions, 141 flow [2021-08-13 15:03:17,185 INFO L129 PetriNetUnfolder]: 2/43 cut-off events. [2021-08-13 15:03:17,185 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-08-13 15:03:17,185 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:17,185 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] [2021-08-13 15:03:17,185 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:03:17,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:17,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1894961310, now seen corresponding path program 1 times [2021-08-13 15:03:17,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:17,186 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603355876] [2021-08-13 15:03:17,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:17,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:17,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:17,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:17,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:17,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:03:17,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:17,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603355876] [2021-08-13 15:03:17,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603355876] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:17,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:17,228 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 15:03:17,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109180201] [2021-08-13 15:03:17,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 15:03:17,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:17,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 15:03:17,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 15:03:17,231 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 60 [2021-08-13 15:03:17,231 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 141 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2021-08-13 15:03:17,231 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:17,232 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 60 [2021-08-13 15:03:17,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:17,329 INFO L129 PetriNetUnfolder]: 156/435 cut-off events. [2021-08-13 15:03:17,329 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-08-13 15:03:17,333 INFO L84 FinitePrefix]: Finished finitePrefix Result has 735 conditions, 435 events. 156/435 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2414 event pairs, 94 based on Foata normal form. 130/473 useless extension candidates. Maximal degree in co-relation 681. Up to 205 conditions per place. [2021-08-13 15:03:17,336 INFO L132 encePairwiseOnDemand]: 53/60 looper letters, 17 selfloop transitions, 4 changer transitions 0/61 dead transitions. [2021-08-13 15:03:17,336 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 61 transitions, 185 flow [2021-08-13 15:03:17,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 15:03:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 15:03:17,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 158 transitions. [2021-08-13 15:03:17,341 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8777777777777778 [2021-08-13 15:03:17,341 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 158 transitions. [2021-08-13 15:03:17,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 158 transitions. [2021-08-13 15:03:17,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:17,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 158 transitions. [2021-08-13 15:03:17,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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) [2021-08-13 15:03:17,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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) [2021-08-13 15:03:17,343 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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) [2021-08-13 15:03:17,343 INFO L348 CegarLoopForPetriNet]: 66 programPoint places, -3 predicate places. [2021-08-13 15:03:17,344 INFO L482 AbstractCegarLoop]: Abstraction has has 63 places, 61 transitions, 185 flow [2021-08-13 15:03:17,344 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2021-08-13 15:03:17,344 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:17,344 INFO L266 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2021-08-13 15:03:17,344 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 15:03:17,344 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:03:17,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:17,345 INFO L82 PathProgramCache]: Analyzing trace with hash 144001721, now seen corresponding path program 1 times [2021-08-13 15:03:17,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:17,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244077130] [2021-08-13 15:03:17,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:17,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:17,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:17,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:17,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:17,387 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-13 15:03:17,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:17,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244077130] [2021-08-13 15:03:17,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244077130] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:17,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:17,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 15:03:17,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422404162] [2021-08-13 15:03:17,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 15:03:17,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:17,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 15:03:17,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 15:03:17,389 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 60 [2021-08-13 15:03:17,390 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 61 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2021-08-13 15:03:17,390 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:17,390 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 60 [2021-08-13 15:03:17,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:17,502 INFO L129 PetriNetUnfolder]: 276/704 cut-off events. [2021-08-13 15:03:17,502 INFO L130 PetriNetUnfolder]: For 77/210 co-relation queries the response was YES. [2021-08-13 15:03:17,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1630 conditions, 704 events. 276/704 cut-off events. For 77/210 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4374 event pairs, 138 based on Foata normal form. 1/558 useless extension candidates. Maximal degree in co-relation 1554. Up to 319 conditions per place. [2021-08-13 15:03:17,509 INFO L132 encePairwiseOnDemand]: 55/60 looper letters, 26 selfloop transitions, 7 changer transitions 0/73 dead transitions. [2021-08-13 15:03:17,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 73 transitions, 299 flow [2021-08-13 15:03:17,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 15:03:17,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 15:03:17,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 154 transitions. [2021-08-13 15:03:17,511 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8555555555555555 [2021-08-13 15:03:17,511 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 154 transitions. [2021-08-13 15:03:17,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 154 transitions. [2021-08-13 15:03:17,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:17,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 154 transitions. [2021-08-13 15:03:17,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2021-08-13 15:03:17,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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) [2021-08-13 15:03:17,513 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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) [2021-08-13 15:03:17,514 INFO L348 CegarLoopForPetriNet]: 66 programPoint places, -1 predicate places. [2021-08-13 15:03:17,514 INFO L482 AbstractCegarLoop]: Abstraction has has 65 places, 73 transitions, 299 flow [2021-08-13 15:03:17,514 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2021-08-13 15:03:17,514 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:17,514 INFO L266 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2021-08-13 15:03:17,514 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 15:03:17,514 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:03:17,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:17,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1659014926, now seen corresponding path program 1 times [2021-08-13 15:03:17,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:17,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990161759] [2021-08-13 15:03:17,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:17,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:17,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:17,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:17,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:17,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:17,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:17,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:17,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:17,579 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-13 15:03:17,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:17,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990161759] [2021-08-13 15:03:17,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990161759] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:17,580 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:17,580 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 15:03:17,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084422194] [2021-08-13 15:03:17,580 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 15:03:17,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:17,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 15:03:17,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 15:03:17,581 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 60 [2021-08-13 15:03:17,582 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 73 transitions, 299 flow. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 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) [2021-08-13 15:03:17,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:17,582 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 60 [2021-08-13 15:03:17,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:17,762 INFO L129 PetriNetUnfolder]: 392/1038 cut-off events. [2021-08-13 15:03:17,762 INFO L130 PetriNetUnfolder]: For 192/1321 co-relation queries the response was YES. [2021-08-13 15:03:17,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3192 conditions, 1038 events. 392/1038 cut-off events. For 192/1321 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 7249 event pairs, 70 based on Foata normal form. 15/862 useless extension candidates. Maximal degree in co-relation 3088. Up to 460 conditions per place. [2021-08-13 15:03:17,774 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 57 selfloop transitions, 24 changer transitions 0/118 dead transitions. [2021-08-13 15:03:17,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 118 transitions, 726 flow [2021-08-13 15:03:17,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 15:03:17,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 15:03:17,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 344 transitions. [2021-08-13 15:03:17,776 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.819047619047619 [2021-08-13 15:03:17,776 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 344 transitions. [2021-08-13 15:03:17,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 344 transitions. [2021-08-13 15:03:17,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:17,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 344 transitions. [2021-08-13 15:03:17,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 49.142857142857146) internal successors, (344), 7 states have internal predecessors, (344), 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) [2021-08-13 15:03:17,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 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) [2021-08-13 15:03:17,779 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 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) [2021-08-13 15:03:17,779 INFO L348 CegarLoopForPetriNet]: 66 programPoint places, 5 predicate places. [2021-08-13 15:03:17,779 INFO L482 AbstractCegarLoop]: Abstraction has has 71 places, 118 transitions, 726 flow [2021-08-13 15:03:17,779 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 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) [2021-08-13 15:03:17,779 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:17,779 INFO L266 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2021-08-13 15:03:17,779 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 15:03:17,780 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:03:17,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:17,780 INFO L82 PathProgramCache]: Analyzing trace with hash -352192270, now seen corresponding path program 2 times [2021-08-13 15:03:17,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:17,780 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235699101] [2021-08-13 15:03:17,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:17,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:17,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:17,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:17,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:17,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:17,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:17,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:17,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:17,823 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-13 15:03:17,823 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:17,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235699101] [2021-08-13 15:03:17,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235699101] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:17,824 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:17,824 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 15:03:17,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492089331] [2021-08-13 15:03:17,824 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 15:03:17,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:17,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 15:03:17,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 15:03:17,826 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 60 [2021-08-13 15:03:17,826 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 118 transitions, 726 flow. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 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) [2021-08-13 15:03:17,826 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:17,826 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 60 [2021-08-13 15:03:17,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:17,999 INFO L129 PetriNetUnfolder]: 375/1050 cut-off events. [2021-08-13 15:03:17,999 INFO L130 PetriNetUnfolder]: For 308/1702 co-relation queries the response was YES. [2021-08-13 15:03:18,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3934 conditions, 1050 events. 375/1050 cut-off events. For 308/1702 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 7577 event pairs, 54 based on Foata normal form. 43/914 useless extension candidates. Maximal degree in co-relation 3817. Up to 462 conditions per place. [2021-08-13 15:03:18,008 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 78 selfloop transitions, 26 changer transitions 0/141 dead transitions. [2021-08-13 15:03:18,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 141 transitions, 1117 flow [2021-08-13 15:03:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-13 15:03:18,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-13 15:03:18,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 299 transitions. [2021-08-13 15:03:18,009 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8305555555555556 [2021-08-13 15:03:18,009 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 299 transitions. [2021-08-13 15:03:18,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 299 transitions. [2021-08-13 15:03:18,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:18,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 299 transitions. [2021-08-13 15:03:18,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 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) [2021-08-13 15:03:18,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 60.0) internal successors, (420), 7 states have internal predecessors, (420), 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) [2021-08-13 15:03:18,011 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 60.0) internal successors, (420), 7 states have internal predecessors, (420), 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) [2021-08-13 15:03:18,011 INFO L348 CegarLoopForPetriNet]: 66 programPoint places, 10 predicate places. [2021-08-13 15:03:18,011 INFO L482 AbstractCegarLoop]: Abstraction has has 76 places, 141 transitions, 1117 flow [2021-08-13 15:03:18,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 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) [2021-08-13 15:03:18,011 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:18,011 INFO L266 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:03:18,011 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 15:03:18,011 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:03:18,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:18,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1641029641, now seen corresponding path program 1 times [2021-08-13 15:03:18,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:18,012 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123230844] [2021-08-13 15:03:18,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 15:03:18,019 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 15:03:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 15:03:18,024 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 15:03:18,029 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-13 15:03:18,029 INFO L651 BasicCegarLoop]: Counterexample might be feasible [2021-08-13 15:03:18,029 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 15:03:18,029 WARN L235 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-08-13 15:03:18,029 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-08-13 15:03:18,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,036 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,036 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,044 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,045 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,045 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,045 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,045 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,045 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,045 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,046 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,046 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,046 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,046 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,046 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,046 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,047 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,047 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,047 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,047 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,047 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,047 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:18,048 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 15:03:18,048 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-13 15:03:18,048 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 15:03:18,049 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 15:03:18,049 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 15:03:18,049 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 15:03:18,049 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 15:03:18,049 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 15:03:18,049 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 15:03:18,049 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 15:03:18,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 174 flow [2021-08-13 15:03:18,055 INFO L129 PetriNetUnfolder]: 5/117 cut-off events. [2021-08-13 15:03:18,055 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-08-13 15:03:18,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 117 events. 5/117 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 185 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 102. Up to 10 conditions per place. [2021-08-13 15:03:18,055 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 71 transitions, 174 flow [2021-08-13 15:03:18,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 71 transitions, 174 flow [2021-08-13 15:03:18,058 INFO L129 PetriNetUnfolder]: 2/43 cut-off events. [2021-08-13 15:03:18,058 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-08-13 15:03:18,058 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:18,058 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] [2021-08-13 15:03:18,058 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 15:03:18,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:18,058 INFO L82 PathProgramCache]: Analyzing trace with hash -869836546, now seen corresponding path program 1 times [2021-08-13 15:03:18,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:18,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992168170] [2021-08-13 15:03:18,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:18,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:18,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:18,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:18,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:18,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:03:18,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:18,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992168170] [2021-08-13 15:03:18,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992168170] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:18,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:18,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 15:03:18,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485692387] [2021-08-13 15:03:18,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 15:03:18,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:18,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 15:03:18,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 15:03:18,071 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 71 [2021-08-13 15:03:18,072 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 71 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-08-13 15:03:18,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:18,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 71 [2021-08-13 15:03:18,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:18,230 INFO L129 PetriNetUnfolder]: 1017/2043 cut-off events. [2021-08-13 15:03:18,230 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2021-08-13 15:03:18,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3595 conditions, 2043 events. 1017/2043 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 14499 event pairs, 654 based on Foata normal form. 516/2065 useless extension candidates. Maximal degree in co-relation 3527. Up to 1146 conditions per place. [2021-08-13 15:03:18,249 INFO L132 encePairwiseOnDemand]: 63/71 looper letters, 22 selfloop transitions, 5 changer transitions 0/75 dead transitions. [2021-08-13 15:03:18,249 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 75 transitions, 236 flow [2021-08-13 15:03:18,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 15:03:18,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 15:03:18,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 188 transitions. [2021-08-13 15:03:18,250 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8826291079812206 [2021-08-13 15:03:18,250 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 188 transitions. [2021-08-13 15:03:18,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 188 transitions. [2021-08-13 15:03:18,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:18,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 188 transitions. [2021-08-13 15:03:18,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2021-08-13 15:03:18,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2021-08-13 15:03:18,251 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2021-08-13 15:03:18,251 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, -3 predicate places. [2021-08-13 15:03:18,251 INFO L482 AbstractCegarLoop]: Abstraction has has 76 places, 75 transitions, 236 flow [2021-08-13 15:03:18,251 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-08-13 15:03:18,251 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:18,251 INFO L266 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2021-08-13 15:03:18,251 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 15:03:18,252 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 15:03:18,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:18,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1281161078, now seen corresponding path program 1 times [2021-08-13 15:03:18,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:18,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906468504] [2021-08-13 15:03:18,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:18,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:18,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:18,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:18,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:18,265 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-13 15:03:18,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:18,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906468504] [2021-08-13 15:03:18,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906468504] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:18,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:18,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 15:03:18,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808858131] [2021-08-13 15:03:18,265 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 15:03:18,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:18,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 15:03:18,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 15:03:18,266 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 71 [2021-08-13 15:03:18,266 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 75 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-08-13 15:03:18,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:18,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 71 [2021-08-13 15:03:18,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:18,562 INFO L129 PetriNetUnfolder]: 1958/3801 cut-off events. [2021-08-13 15:03:18,563 INFO L130 PetriNetUnfolder]: For 270/1798 co-relation queries the response was YES. [2021-08-13 15:03:18,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9238 conditions, 3801 events. 1958/3801 cut-off events. For 270/1798 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 29064 event pairs, 929 based on Foata normal form. 1/2955 useless extension candidates. Maximal degree in co-relation 9148. Up to 2025 conditions per place. [2021-08-13 15:03:18,605 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 36 selfloop transitions, 9 changer transitions 0/93 dead transitions. [2021-08-13 15:03:18,605 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 93 transitions, 398 flow [2021-08-13 15:03:18,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 15:03:18,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 15:03:18,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2021-08-13 15:03:18,606 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.863849765258216 [2021-08-13 15:03:18,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 184 transitions. [2021-08-13 15:03:18,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 184 transitions. [2021-08-13 15:03:18,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:18,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 184 transitions. [2021-08-13 15:03:18,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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) [2021-08-13 15:03:18,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2021-08-13 15:03:18,608 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2021-08-13 15:03:18,608 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, -1 predicate places. [2021-08-13 15:03:18,608 INFO L482 AbstractCegarLoop]: Abstraction has has 78 places, 93 transitions, 398 flow [2021-08-13 15:03:18,608 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-08-13 15:03:18,608 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:18,608 INFO L266 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2021-08-13 15:03:18,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 15:03:18,608 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 15:03:18,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:18,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1024207773, now seen corresponding path program 1 times [2021-08-13 15:03:18,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:18,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589073431] [2021-08-13 15:03:18,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:18,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:18,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:18,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:18,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:18,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:18,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:18,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:18,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:18,671 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-13 15:03:18,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:18,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589073431] [2021-08-13 15:03:18,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589073431] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:18,673 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:18,673 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 15:03:18,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910142576] [2021-08-13 15:03:18,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 15:03:18,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:18,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 15:03:18,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 15:03:18,675 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 71 [2021-08-13 15:03:18,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 93 transitions, 398 flow. Second operand has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2021-08-13 15:03:18,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:18,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 71 [2021-08-13 15:03:18,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:19,315 INFO L129 PetriNetUnfolder]: 2893/5657 cut-off events. [2021-08-13 15:03:19,315 INFO L130 PetriNetUnfolder]: For 689/12252 co-relation queries the response was YES. [2021-08-13 15:03:19,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18501 conditions, 5657 events. 2893/5657 cut-off events. For 689/12252 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 46425 event pairs, 543 based on Foata normal form. 28/4460 useless extension candidates. Maximal degree in co-relation 18383. Up to 3015 conditions per place. [2021-08-13 15:03:19,363 INFO L132 encePairwiseOnDemand]: 61/71 looper letters, 84 selfloop transitions, 30 changer transitions 0/159 dead transitions. [2021-08-13 15:03:19,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 159 transitions, 1017 flow [2021-08-13 15:03:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 15:03:19,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 15:03:19,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 418 transitions. [2021-08-13 15:03:19,365 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8410462776659959 [2021-08-13 15:03:19,365 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 418 transitions. [2021-08-13 15:03:19,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 418 transitions. [2021-08-13 15:03:19,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:19,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 418 transitions. [2021-08-13 15:03:19,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 59.714285714285715) internal successors, (418), 7 states have internal predecessors, (418), 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) [2021-08-13 15:03:19,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2021-08-13 15:03:19,367 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2021-08-13 15:03:19,367 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 5 predicate places. [2021-08-13 15:03:19,367 INFO L482 AbstractCegarLoop]: Abstraction has has 84 places, 159 transitions, 1017 flow [2021-08-13 15:03:19,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2021-08-13 15:03:19,367 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:19,367 INFO L266 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2021-08-13 15:03:19,367 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-13 15:03:19,368 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 15:03:19,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:19,368 INFO L82 PathProgramCache]: Analyzing trace with hash 282614883, now seen corresponding path program 2 times [2021-08-13 15:03:19,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:19,368 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230885533] [2021-08-13 15:03:19,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:19,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:19,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:19,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:19,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:19,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:19,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:19,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:19,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:19,406 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-13 15:03:19,406 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:19,406 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230885533] [2021-08-13 15:03:19,406 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230885533] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:19,406 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:19,406 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 15:03:19,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262932283] [2021-08-13 15:03:19,406 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 15:03:19,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:19,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 15:03:19,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 15:03:19,407 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 71 [2021-08-13 15:03:19,408 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 159 transitions, 1017 flow. Second operand has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2021-08-13 15:03:19,408 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:19,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 71 [2021-08-13 15:03:19,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:20,010 INFO L129 PetriNetUnfolder]: 2889/5777 cut-off events. [2021-08-13 15:03:20,011 INFO L130 PetriNetUnfolder]: For 1083/14488 co-relation queries the response was YES. [2021-08-13 15:03:20,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23332 conditions, 5777 events. 2889/5777 cut-off events. For 1083/14488 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 48441 event pairs, 283 based on Foata normal form. 83/4655 useless extension candidates. Maximal degree in co-relation 23201. Up to 3088 conditions per place. [2021-08-13 15:03:20,062 INFO L132 encePairwiseOnDemand]: 61/71 looper letters, 122 selfloop transitions, 35 changer transitions 0/202 dead transitions. [2021-08-13 15:03:20,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 202 transitions, 1674 flow [2021-08-13 15:03:20,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-13 15:03:20,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-13 15:03:20,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 362 transitions. [2021-08-13 15:03:20,063 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8497652582159625 [2021-08-13 15:03:20,064 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 362 transitions. [2021-08-13 15:03:20,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 362 transitions. [2021-08-13 15:03:20,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:20,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 362 transitions. [2021-08-13 15:03:20,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 60.333333333333336) internal successors, (362), 6 states have internal predecessors, (362), 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) [2021-08-13 15:03:20,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 15:03:20,065 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 15:03:20,065 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 10 predicate places. [2021-08-13 15:03:20,065 INFO L482 AbstractCegarLoop]: Abstraction has has 89 places, 202 transitions, 1674 flow [2021-08-13 15:03:20,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2021-08-13 15:03:20,066 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:20,066 INFO L266 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:03:20,066 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-13 15:03:20,066 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 15:03:20,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:20,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1835340023, now seen corresponding path program 1 times [2021-08-13 15:03:20,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:20,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463133279] [2021-08-13 15:03:20,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:20,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:20,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:20,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:20,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:20,080 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-13 15:03:20,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:20,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463133279] [2021-08-13 15:03:20,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463133279] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:20,081 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:20,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 15:03:20,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790546607] [2021-08-13 15:03:20,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 15:03:20,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:20,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 15:03:20,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 15:03:20,082 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 71 [2021-08-13 15:03:20,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 202 transitions, 1674 flow. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-08-13 15:03:20,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:20,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 71 [2021-08-13 15:03:20,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:21,313 INFO L129 PetriNetUnfolder]: 5136/10467 cut-off events. [2021-08-13 15:03:21,313 INFO L130 PetriNetUnfolder]: For 9468/58252 co-relation queries the response was YES. [2021-08-13 15:03:21,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46792 conditions, 10467 events. 5136/10467 cut-off events. For 9468/58252 co-relation queries the response was YES. Maximal size of possible extension queue 672. Compared 96595 event pairs, 1165 based on Foata normal form. 51/8521 useless extension candidates. Maximal degree in co-relation 29937. Up to 5335 conditions per place. [2021-08-13 15:03:21,421 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 189 selfloop transitions, 62 changer transitions 0/307 dead transitions. [2021-08-13 15:03:21,421 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 307 transitions, 3226 flow [2021-08-13 15:03:21,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 15:03:21,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 15:03:21,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2021-08-13 15:03:21,422 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.863849765258216 [2021-08-13 15:03:21,422 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 184 transitions. [2021-08-13 15:03:21,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 184 transitions. [2021-08-13 15:03:21,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:21,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 184 transitions. [2021-08-13 15:03:21,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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) [2021-08-13 15:03:21,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2021-08-13 15:03:21,424 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2021-08-13 15:03:21,424 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 12 predicate places. [2021-08-13 15:03:21,424 INFO L482 AbstractCegarLoop]: Abstraction has has 91 places, 307 transitions, 3226 flow [2021-08-13 15:03:21,424 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-08-13 15:03:21,424 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:21,424 INFO L266 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 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] [2021-08-13 15:03:21,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-13 15:03:21,425 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 15:03:21,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:21,425 INFO L82 PathProgramCache]: Analyzing trace with hash 978096550, now seen corresponding path program 1 times [2021-08-13 15:03:21,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:21,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94926558] [2021-08-13 15:03:21,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:21,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:21,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:21,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:21,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:21,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:21,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:21,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:21,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:21,463 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-13 15:03:21,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:21,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94926558] [2021-08-13 15:03:21,464 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94926558] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:21,464 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:21,464 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 15:03:21,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343765176] [2021-08-13 15:03:21,465 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 15:03:21,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:21,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 15:03:21,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 15:03:21,466 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 71 [2021-08-13 15:03:21,467 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 307 transitions, 3226 flow. Second operand has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2021-08-13 15:03:21,467 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:21,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 71 [2021-08-13 15:03:21,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:23,531 INFO L129 PetriNetUnfolder]: 7641/15892 cut-off events. [2021-08-13 15:03:23,532 INFO L130 PetriNetUnfolder]: For 13274/39954 co-relation queries the response was YES. [2021-08-13 15:03:23,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84229 conditions, 15892 events. 7641/15892 cut-off events. For 13274/39954 co-relation queries the response was YES. Maximal size of possible extension queue 1062. Compared 160088 event pairs, 770 based on Foata normal form. 142/13281 useless extension candidates. Maximal degree in co-relation 83334. Up to 7881 conditions per place. [2021-08-13 15:03:23,704 INFO L132 encePairwiseOnDemand]: 61/71 looper letters, 331 selfloop transitions, 116 changer transitions 0/498 dead transitions. [2021-08-13 15:03:23,704 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 498 transitions, 6378 flow [2021-08-13 15:03:23,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-13 15:03:23,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-13 15:03:23,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 362 transitions. [2021-08-13 15:03:23,705 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8497652582159625 [2021-08-13 15:03:23,705 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 362 transitions. [2021-08-13 15:03:23,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 362 transitions. [2021-08-13 15:03:23,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:23,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 362 transitions. [2021-08-13 15:03:23,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 60.333333333333336) internal successors, (362), 6 states have internal predecessors, (362), 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) [2021-08-13 15:03:23,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 15:03:23,707 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 15:03:23,707 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 17 predicate places. [2021-08-13 15:03:23,707 INFO L482 AbstractCegarLoop]: Abstraction has has 96 places, 498 transitions, 6378 flow [2021-08-13 15:03:23,707 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2021-08-13 15:03:23,707 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:23,707 INFO L266 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 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] [2021-08-13 15:03:23,707 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-13 15:03:23,708 INFO L430 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 15:03:23,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:23,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1813146944, now seen corresponding path program 2 times [2021-08-13 15:03:23,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:23,708 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192520965] [2021-08-13 15:03:23,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:23,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:23,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:23,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:23,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:23,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:23,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:23,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:23,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-13 15:03:23,735 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:23,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192520965] [2021-08-13 15:03:23,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192520965] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:23,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:23,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 15:03:23,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194465010] [2021-08-13 15:03:23,736 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 15:03:23,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:23,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 15:03:23,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 15:03:23,738 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 71 [2021-08-13 15:03:23,738 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 498 transitions, 6378 flow. Second operand has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2021-08-13 15:03:23,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:23,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 71 [2021-08-13 15:03:23,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:26,186 INFO L129 PetriNetUnfolder]: 7688/16723 cut-off events. [2021-08-13 15:03:26,187 INFO L130 PetriNetUnfolder]: For 16678/45608 co-relation queries the response was YES. [2021-08-13 15:03:26,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98875 conditions, 16723 events. 7688/16723 cut-off events. For 16678/45608 co-relation queries the response was YES. Maximal size of possible extension queue 1188. Compared 175262 event pairs, 657 based on Foata normal form. 320/14341 useless extension candidates. Maximal degree in co-relation 97872. Up to 8122 conditions per place. [2021-08-13 15:03:26,377 INFO L132 encePairwiseOnDemand]: 61/71 looper letters, 471 selfloop transitions, 168 changer transitions 0/690 dead transitions. [2021-08-13 15:03:26,377 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 690 transitions, 10328 flow [2021-08-13 15:03:26,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 15:03:26,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 15:03:26,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 415 transitions. [2021-08-13 15:03:26,379 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8350100603621731 [2021-08-13 15:03:26,379 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 415 transitions. [2021-08-13 15:03:26,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 415 transitions. [2021-08-13 15:03:26,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:26,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 415 transitions. [2021-08-13 15:03:26,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 59.285714285714285) internal successors, (415), 7 states have internal predecessors, (415), 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) [2021-08-13 15:03:26,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2021-08-13 15:03:26,381 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2021-08-13 15:03:26,382 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 23 predicate places. [2021-08-13 15:03:26,382 INFO L482 AbstractCegarLoop]: Abstraction has has 102 places, 690 transitions, 10328 flow [2021-08-13 15:03:26,382 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2021-08-13 15:03:26,382 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:26,383 INFO L266 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 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] [2021-08-13 15:03:26,383 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-13 15:03:26,383 INFO L430 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 15:03:26,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:26,383 INFO L82 PathProgramCache]: Analyzing trace with hash 2085161524, now seen corresponding path program 1 times [2021-08-13 15:03:26,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:26,383 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254948344] [2021-08-13 15:03:26,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:26,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:26,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:26,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:26,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:26,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:26,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:26,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:26,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:26,431 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-13 15:03:26,431 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:26,431 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254948344] [2021-08-13 15:03:26,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254948344] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:26,431 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:26,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 15:03:26,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129395190] [2021-08-13 15:03:26,432 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 15:03:26,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:26,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 15:03:26,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 15:03:26,433 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 71 [2021-08-13 15:03:26,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 690 transitions, 10328 flow. Second operand has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2021-08-13 15:03:26,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:26,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 71 [2021-08-13 15:03:26,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:30,498 INFO L129 PetriNetUnfolder]: 10298/23625 cut-off events. [2021-08-13 15:03:30,499 INFO L130 PetriNetUnfolder]: For 34355/833785 co-relation queries the response was YES. [2021-08-13 15:03:30,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154691 conditions, 23625 events. 10298/23625 cut-off events. For 34355/833785 co-relation queries the response was YES. Maximal size of possible extension queue 1967. Compared 272093 event pairs, 942 based on Foata normal form. 522/20310 useless extension candidates. Maximal degree in co-relation 101574. Up to 11125 conditions per place. [2021-08-13 15:03:30,932 INFO L132 encePairwiseOnDemand]: 61/71 looper letters, 724 selfloop transitions, 250 changer transitions 0/1025 dead transitions. [2021-08-13 15:03:30,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 1025 transitions, 17534 flow [2021-08-13 15:03:30,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-13 15:03:30,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-13 15:03:30,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 361 transitions. [2021-08-13 15:03:30,934 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8474178403755869 [2021-08-13 15:03:30,934 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 361 transitions. [2021-08-13 15:03:30,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 361 transitions. [2021-08-13 15:03:30,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:30,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 361 transitions. [2021-08-13 15:03:30,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 60.166666666666664) internal successors, (361), 6 states have internal predecessors, (361), 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) [2021-08-13 15:03:30,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 15:03:30,936 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 15:03:30,936 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 28 predicate places. [2021-08-13 15:03:30,936 INFO L482 AbstractCegarLoop]: Abstraction has has 107 places, 1025 transitions, 17534 flow [2021-08-13 15:03:30,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2021-08-13 15:03:30,936 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:30,937 INFO L266 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 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] [2021-08-13 15:03:30,937 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-13 15:03:30,937 INFO L430 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 15:03:30,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:30,937 INFO L82 PathProgramCache]: Analyzing trace with hash -186923894, now seen corresponding path program 1 times [2021-08-13 15:03:30,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:30,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726082482] [2021-08-13 15:03:30,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:30,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:30,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:30,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:30,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:30,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:30,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:30,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:30,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:30,967 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-13 15:03:30,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:30,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726082482] [2021-08-13 15:03:30,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726082482] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:30,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:30,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 15:03:30,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082753653] [2021-08-13 15:03:30,968 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 15:03:30,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:30,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 15:03:30,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 15:03:30,968 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 71 [2021-08-13 15:03:30,969 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 1025 transitions, 17534 flow. Second operand has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2021-08-13 15:03:30,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:30,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 71 [2021-08-13 15:03:30,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:36,302 INFO L129 PetriNetUnfolder]: 10412/25102 cut-off events. [2021-08-13 15:03:36,303 INFO L130 PetriNetUnfolder]: For 58942/2777660 co-relation queries the response was YES. [2021-08-13 15:03:36,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 178725 conditions, 25102 events. 10412/25102 cut-off events. For 58942/2777660 co-relation queries the response was YES. Maximal size of possible extension queue 2250. Compared 301770 event pairs, 1086 based on Foata normal form. 1131/22125 useless extension candidates. Maximal degree in co-relation 58147. Up to 11591 conditions per place. [2021-08-13 15:03:36,730 INFO L132 encePairwiseOnDemand]: 61/71 looper letters, 880 selfloop transitions, 300 changer transitions 0/1231 dead transitions. [2021-08-13 15:03:36,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 1231 transitions, 23506 flow [2021-08-13 15:03:36,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-13 15:03:36,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-13 15:03:36,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 358 transitions. [2021-08-13 15:03:36,731 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8403755868544601 [2021-08-13 15:03:36,731 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 358 transitions. [2021-08-13 15:03:36,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 358 transitions. [2021-08-13 15:03:36,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:36,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 358 transitions. [2021-08-13 15:03:36,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 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) [2021-08-13 15:03:36,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 15:03:36,733 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 15:03:36,733 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 33 predicate places. [2021-08-13 15:03:36,733 INFO L482 AbstractCegarLoop]: Abstraction has has 112 places, 1231 transitions, 23506 flow [2021-08-13 15:03:36,733 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2021-08-13 15:03:36,734 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:36,734 INFO L266 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:03:36,734 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-13 15:03:36,734 INFO L430 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 15:03:36,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:36,734 INFO L82 PathProgramCache]: Analyzing trace with hash 452819435, now seen corresponding path program 1 times [2021-08-13 15:03:36,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:36,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689210529] [2021-08-13 15:03:36,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 15:03:36,746 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 15:03:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 15:03:36,750 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 15:03:36,755 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-13 15:03:36,755 INFO L651 BasicCegarLoop]: Counterexample might be feasible [2021-08-13 15:03:36,755 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-13 15:03:36,755 WARN L235 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-08-13 15:03:36,755 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-08-13 15:03:36,764 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,765 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,765 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,765 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,765 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,765 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,765 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,765 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,765 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,765 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,765 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,765 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,766 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,766 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,766 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,767 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,767 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,767 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,767 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,767 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,768 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,768 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,768 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,768 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,768 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,768 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,768 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,768 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,768 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,768 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,768 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,768 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,769 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,769 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,769 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,769 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,769 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,769 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,769 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,769 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,769 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,769 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,769 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,769 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,769 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,770 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,770 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,770 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,770 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,770 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,770 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,770 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,771 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,771 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,771 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,771 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,771 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,771 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,771 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,774 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,774 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,774 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,774 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,774 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,775 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,775 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,775 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,775 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,775 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,775 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,775 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,777 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,777 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,777 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,777 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,777 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,777 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,778 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,778 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,778 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,778 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,778 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,778 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,779 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,779 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,779 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,779 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,779 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,780 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,780 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,780 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,781 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,781 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,781 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,781 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:03:36,781 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 15:03:36,782 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-08-13 15:03:36,782 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 15:03:36,782 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 15:03:36,782 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 15:03:36,783 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 15:03:36,783 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 15:03:36,783 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 15:03:36,783 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 15:03:36,783 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 15:03:36,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 82 transitions, 209 flow [2021-08-13 15:03:36,792 INFO L129 PetriNetUnfolder]: 6/140 cut-off events. [2021-08-13 15:03:36,792 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-08-13 15:03:36,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 140 events. 6/140 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 230 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 130. Up to 12 conditions per place. [2021-08-13 15:03:36,793 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 82 transitions, 209 flow [2021-08-13 15:03:36,793 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 82 transitions, 209 flow [2021-08-13 15:03:36,795 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2021-08-13 15:03:36,796 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-08-13 15:03:36,796 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:36,796 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] [2021-08-13 15:03:36,796 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:03:36,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:36,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1723770198, now seen corresponding path program 1 times [2021-08-13 15:03:36,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:36,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171706720] [2021-08-13 15:03:36,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:36,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:36,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:36,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:36,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:36,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 15:03:36,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:36,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171706720] [2021-08-13 15:03:36,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171706720] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:36,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:36,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 15:03:36,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212069027] [2021-08-13 15:03:36,809 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 15:03:36,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:36,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 15:03:36,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 15:03:36,810 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 82 [2021-08-13 15:03:36,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 82 transitions, 209 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-08-13 15:03:36,810 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:36,810 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 82 [2021-08-13 15:03:36,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:37,566 INFO L129 PetriNetUnfolder]: 5622/9631 cut-off events. [2021-08-13 15:03:37,567 INFO L130 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2021-08-13 15:03:37,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17332 conditions, 9631 events. 5622/9631 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 648. Compared 76421 event pairs, 3758 based on Foata normal form. 2054/9252 useless extension candidates. Maximal degree in co-relation 17249. Up to 5879 conditions per place. [2021-08-13 15:03:37,628 INFO L132 encePairwiseOnDemand]: 73/82 looper letters, 27 selfloop transitions, 6 changer transitions 0/89 dead transitions. [2021-08-13 15:03:37,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 89 transitions, 289 flow [2021-08-13 15:03:37,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 15:03:37,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 15:03:37,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2021-08-13 15:03:37,629 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8861788617886179 [2021-08-13 15:03:37,629 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2021-08-13 15:03:37,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2021-08-13 15:03:37,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:37,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2021-08-13 15:03:37,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2021-08-13 15:03:37,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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) [2021-08-13 15:03:37,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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) [2021-08-13 15:03:37,631 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, -3 predicate places. [2021-08-13 15:03:37,631 INFO L482 AbstractCegarLoop]: Abstraction has has 89 places, 89 transitions, 289 flow [2021-08-13 15:03:37,631 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-08-13 15:03:37,631 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:37,631 INFO L266 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2021-08-13 15:03:37,631 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-13 15:03:37,631 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:03:37,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:37,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1358896958, now seen corresponding path program 1 times [2021-08-13 15:03:37,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:37,632 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015551875] [2021-08-13 15:03:37,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:37,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:37,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:37,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:37,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:37,642 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-13 15:03:37,642 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:37,642 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015551875] [2021-08-13 15:03:37,642 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015551875] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:37,642 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:37,642 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 15:03:37,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361277663] [2021-08-13 15:03:37,642 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 15:03:37,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:37,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 15:03:37,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 15:03:37,643 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 82 [2021-08-13 15:03:37,643 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 89 transitions, 289 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-08-13 15:03:37,643 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:37,643 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 82 [2021-08-13 15:03:37,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:39,058 INFO L129 PetriNetUnfolder]: 11001/18642 cut-off events. [2021-08-13 15:03:39,058 INFO L130 PetriNetUnfolder]: For 696/19451 co-relation queries the response was YES. [2021-08-13 15:03:39,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46699 conditions, 18642 events. 11001/18642 cut-off events. For 696/19451 co-relation queries the response was YES. Maximal size of possible extension queue 1026. Compared 157530 event pairs, 5328 based on Foata normal form. 1/14323 useless extension candidates. Maximal degree in co-relation 46594. Up to 10788 conditions per place. [2021-08-13 15:03:39,212 INFO L132 encePairwiseOnDemand]: 75/82 looper letters, 46 selfloop transitions, 11 changer transitions 0/113 dead transitions. [2021-08-13 15:03:39,212 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 113 transitions, 499 flow [2021-08-13 15:03:39,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 15:03:39,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 15:03:39,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2021-08-13 15:03:39,213 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8699186991869918 [2021-08-13 15:03:39,213 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2021-08-13 15:03:39,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2021-08-13 15:03:39,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:39,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2021-08-13 15:03:39,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2021-08-13 15:03:39,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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) [2021-08-13 15:03:39,215 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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) [2021-08-13 15:03:39,215 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, -1 predicate places. [2021-08-13 15:03:39,215 INFO L482 AbstractCegarLoop]: Abstraction has has 91 places, 113 transitions, 499 flow [2021-08-13 15:03:39,215 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-08-13 15:03:39,215 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:39,215 INFO L266 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2021-08-13 15:03:39,215 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-13 15:03:39,215 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:03:39,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:39,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1529704661, now seen corresponding path program 1 times [2021-08-13 15:03:39,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:39,216 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061382054] [2021-08-13 15:03:39,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:39,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:39,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:39,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:39,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:39,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:39,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:39,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:39,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:39,233 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-13 15:03:39,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:39,233 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061382054] [2021-08-13 15:03:39,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061382054] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:39,233 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:39,233 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 15:03:39,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847906438] [2021-08-13 15:03:39,234 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 15:03:39,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:39,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 15:03:39,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 15:03:39,234 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 82 [2021-08-13 15:03:39,235 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 113 transitions, 499 flow. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2021-08-13 15:03:39,235 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:39,235 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 82 [2021-08-13 15:03:39,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:41,889 INFO L129 PetriNetUnfolder]: 16599/27645 cut-off events. [2021-08-13 15:03:41,889 INFO L130 PetriNetUnfolder]: For 3095/119060 co-relation queries the response was YES. [2021-08-13 15:03:41,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94335 conditions, 27645 events. 16599/27645 cut-off events. For 3095/119060 co-relation queries the response was YES. Maximal size of possible extension queue 1435. Compared 237858 event pairs, 2196 based on Foata normal form. 41/21160 useless extension candidates. Maximal degree in co-relation 94202. Up to 16353 conditions per place. [2021-08-13 15:03:42,152 INFO L132 encePairwiseOnDemand]: 71/82 looper letters, 111 selfloop transitions, 36 changer transitions 0/200 dead transitions. [2021-08-13 15:03:42,152 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 200 transitions, 1310 flow [2021-08-13 15:03:42,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 15:03:42,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 15:03:42,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 492 transitions. [2021-08-13 15:03:42,153 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2021-08-13 15:03:42,153 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 492 transitions. [2021-08-13 15:03:42,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 492 transitions. [2021-08-13 15:03:42,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:42,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 492 transitions. [2021-08-13 15:03:42,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 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) [2021-08-13 15:03:42,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 82.0) internal successors, (656), 8 states have internal predecessors, (656), 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) [2021-08-13 15:03:42,155 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 82.0) internal successors, (656), 8 states have internal predecessors, (656), 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) [2021-08-13 15:03:42,155 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 5 predicate places. [2021-08-13 15:03:42,156 INFO L482 AbstractCegarLoop]: Abstraction has has 97 places, 200 transitions, 1310 flow [2021-08-13 15:03:42,156 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2021-08-13 15:03:42,156 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:42,156 INFO L266 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2021-08-13 15:03:42,156 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-13 15:03:42,156 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:03:42,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:42,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1648150741, now seen corresponding path program 2 times [2021-08-13 15:03:42,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:42,156 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48676556] [2021-08-13 15:03:42,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:42,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:42,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:42,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:42,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:42,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:42,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:42,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:42,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:42,173 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-13 15:03:42,173 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:42,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48676556] [2021-08-13 15:03:42,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48676556] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:42,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:42,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 15:03:42,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594837086] [2021-08-13 15:03:42,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 15:03:42,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:42,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 15:03:42,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 15:03:42,174 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 82 [2021-08-13 15:03:42,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 200 transitions, 1310 flow. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2021-08-13 15:03:42,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:42,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 82 [2021-08-13 15:03:42,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:45,192 INFO L129 PetriNetUnfolder]: 16851/28702 cut-off events. [2021-08-13 15:03:45,192 INFO L130 PetriNetUnfolder]: For 3831/140512 co-relation queries the response was YES. [2021-08-13 15:03:45,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120545 conditions, 28702 events. 16851/28702 cut-off events. For 3831/140512 co-relation queries the response was YES. Maximal size of possible extension queue 1531. Compared 256433 event pairs, 1798 based on Foata normal form. 123/22270 useless extension candidates. Maximal degree in co-relation 120399. Up to 16826 conditions per place. [2021-08-13 15:03:45,753 INFO L132 encePairwiseOnDemand]: 71/82 looper letters, 165 selfloop transitions, 43 changer transitions 0/261 dead transitions. [2021-08-13 15:03:45,753 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 261 transitions, 2213 flow [2021-08-13 15:03:45,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-13 15:03:45,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-13 15:03:45,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 425 transitions. [2021-08-13 15:03:45,755 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8638211382113821 [2021-08-13 15:03:45,755 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 425 transitions. [2021-08-13 15:03:45,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 425 transitions. [2021-08-13 15:03:45,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:45,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 425 transitions. [2021-08-13 15:03:45,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 70.83333333333333) internal successors, (425), 6 states have internal predecessors, (425), 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) [2021-08-13 15:03:45,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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) [2021-08-13 15:03:45,757 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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) [2021-08-13 15:03:45,757 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 10 predicate places. [2021-08-13 15:03:45,757 INFO L482 AbstractCegarLoop]: Abstraction has has 102 places, 261 transitions, 2213 flow [2021-08-13 15:03:45,757 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2021-08-13 15:03:45,757 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:45,757 INFO L266 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 15:03:45,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-13 15:03:45,757 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:03:45,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:45,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1572153837, now seen corresponding path program 1 times [2021-08-13 15:03:45,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:45,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108920747] [2021-08-13 15:03:45,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:45,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:45,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:45,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:45,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:45,769 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-13 15:03:45,769 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:45,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108920747] [2021-08-13 15:03:45,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108920747] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:45,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:45,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 15:03:45,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318440559] [2021-08-13 15:03:45,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 15:03:45,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:45,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 15:03:45,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 15:03:45,770 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 82 [2021-08-13 15:03:45,770 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 261 transitions, 2213 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-08-13 15:03:45,770 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:45,770 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 82 [2021-08-13 15:03:45,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:03:52,437 INFO L129 PetriNetUnfolder]: 31876/54845 cut-off events. [2021-08-13 15:03:52,437 INFO L130 PetriNetUnfolder]: For 34054/432351 co-relation queries the response was YES. [2021-08-13 15:03:52,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 258609 conditions, 54845 events. 31876/54845 cut-off events. For 34054/432351 co-relation queries the response was YES. Maximal size of possible extension queue 2726. Compared 529469 event pairs, 5212 based on Foata normal form. 78/43387 useless extension candidates. Maximal degree in co-relation 184169. Up to 31353 conditions per place. [2021-08-13 15:03:53,507 INFO L132 encePairwiseOnDemand]: 75/82 looper letters, 276 selfloop transitions, 79 changer transitions 0/419 dead transitions. [2021-08-13 15:03:53,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 419 transitions, 4503 flow [2021-08-13 15:03:53,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 15:03:53,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 15:03:53,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2021-08-13 15:03:53,509 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8699186991869918 [2021-08-13 15:03:53,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2021-08-13 15:03:53,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2021-08-13 15:03:53,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:03:53,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2021-08-13 15:03:53,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2021-08-13 15:03:53,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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) [2021-08-13 15:03:53,533 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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) [2021-08-13 15:03:53,533 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 12 predicate places. [2021-08-13 15:03:53,533 INFO L482 AbstractCegarLoop]: Abstraction has has 104 places, 419 transitions, 4503 flow [2021-08-13 15:03:53,534 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-08-13 15:03:53,534 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:03:53,534 INFO L266 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 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] [2021-08-13 15:03:53,534 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-13 15:03:53,534 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:03:53,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:03:53,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1278463648, now seen corresponding path program 1 times [2021-08-13 15:03:53,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:03:53,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721396609] [2021-08-13 15:03:53,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:03:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:03:53,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:53,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:03:53,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:53,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:53,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:53,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:53,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:03:53,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:03:53,570 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-13 15:03:53,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:03:53,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721396609] [2021-08-13 15:03:53,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721396609] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:03:53,570 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:03:53,570 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 15:03:53,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266335937] [2021-08-13 15:03:53,571 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 15:03:53,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:03:53,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 15:03:53,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 15:03:53,571 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 82 [2021-08-13 15:03:53,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 419 transitions, 4503 flow. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2021-08-13 15:03:53,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:03:53,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 82 [2021-08-13 15:03:53,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:04:06,534 INFO L129 PetriNetUnfolder]: 48911/85451 cut-off events. [2021-08-13 15:04:06,534 INFO L130 PetriNetUnfolder]: For 74984/2685784 co-relation queries the response was YES. [2021-08-13 15:04:07,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 475651 conditions, 85451 events. 48911/85451 cut-off events. For 74984/2685784 co-relation queries the response was YES. Maximal size of possible extension queue 4265. Compared 882761 event pairs, 3553 based on Foata normal form. 275/68415 useless extension candidates. Maximal degree in co-relation 474741. Up to 47933 conditions per place. [2021-08-13 15:04:08,283 INFO L132 encePairwiseOnDemand]: 71/82 looper letters, 482 selfloop transitions, 152 changer transitions 0/693 dead transitions. [2021-08-13 15:04:08,283 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 693 transitions, 9025 flow [2021-08-13 15:04:08,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-13 15:04:08,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-13 15:04:08,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 425 transitions. [2021-08-13 15:04:08,284 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8638211382113821 [2021-08-13 15:04:08,284 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 425 transitions. [2021-08-13 15:04:08,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 425 transitions. [2021-08-13 15:04:08,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:04:08,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 425 transitions. [2021-08-13 15:04:08,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 70.83333333333333) internal successors, (425), 6 states have internal predecessors, (425), 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) [2021-08-13 15:04:08,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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) [2021-08-13 15:04:08,286 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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) [2021-08-13 15:04:08,286 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 17 predicate places. [2021-08-13 15:04:08,286 INFO L482 AbstractCegarLoop]: Abstraction has has 109 places, 693 transitions, 9025 flow [2021-08-13 15:04:08,287 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2021-08-13 15:04:08,287 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:04:08,287 INFO L266 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 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] [2021-08-13 15:04:08,287 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-08-13 15:04:08,287 INFO L430 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:04:08,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:04:08,287 INFO L82 PathProgramCache]: Analyzing trace with hash 891009580, now seen corresponding path program 2 times [2021-08-13 15:04:08,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:04:08,287 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699598871] [2021-08-13 15:04:08,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:04:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:04:08,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:04:08,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:04:08,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:04:08,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:04:08,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:04:08,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:04:08,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:04:08,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:04:08,304 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-13 15:04:08,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:04:08,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699598871] [2021-08-13 15:04:08,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699598871] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:04:08,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:04:08,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 15:04:08,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279579628] [2021-08-13 15:04:08,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 15:04:08,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:04:08,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 15:04:08,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 15:04:08,306 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 82 [2021-08-13 15:04:08,306 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 693 transitions, 9025 flow. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2021-08-13 15:04:08,306 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:04:08,306 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 82 [2021-08-13 15:04:08,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:04:24,861 INFO L129 PetriNetUnfolder]: 50531/90471 cut-off events. [2021-08-13 15:04:24,861 INFO L130 PetriNetUnfolder]: For 99085/2980613 co-relation queries the response was YES. [2021-08-13 15:04:25,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 567692 conditions, 90471 events. 50531/90471 cut-off events. For 99085/2980613 co-relation queries the response was YES. Maximal size of possible extension queue 4588. Compared 966886 event pairs, 2749 based on Foata normal form. 640/73532 useless extension candidates. Maximal degree in co-relation 566674. Up to 50083 conditions per place. [2021-08-13 15:04:26,879 INFO L132 encePairwiseOnDemand]: 71/82 looper letters, 731 selfloop transitions, 231 changer transitions 0/1021 dead transitions. [2021-08-13 15:04:26,880 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 1021 transitions, 15525 flow [2021-08-13 15:04:26,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 15:04:26,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 15:04:26,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 489 transitions. [2021-08-13 15:04:26,883 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8519163763066202 [2021-08-13 15:04:26,883 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 489 transitions. [2021-08-13 15:04:26,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 489 transitions. [2021-08-13 15:04:26,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:04:26,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 489 transitions. [2021-08-13 15:04:26,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 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) [2021-08-13 15:04:26,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 82.0) internal successors, (656), 8 states have internal predecessors, (656), 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) [2021-08-13 15:04:26,892 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 82.0) internal successors, (656), 8 states have internal predecessors, (656), 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) [2021-08-13 15:04:26,892 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 23 predicate places. [2021-08-13 15:04:26,892 INFO L482 AbstractCegarLoop]: Abstraction has has 115 places, 1021 transitions, 15525 flow [2021-08-13 15:04:26,893 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2021-08-13 15:04:26,893 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:04:26,893 INFO L266 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 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] [2021-08-13 15:04:26,893 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-13 15:04:26,893 INFO L430 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:04:26,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:04:26,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1968342468, now seen corresponding path program 1 times [2021-08-13 15:04:26,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:04:26,893 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001452346] [2021-08-13 15:04:26,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:04:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:04:26,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:04:26,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:04:26,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:04:26,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:04:26,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:04:26,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:04:26,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:04:26,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:04:26,947 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-13 15:04:26,947 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:04:26,947 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001452346] [2021-08-13 15:04:26,947 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001452346] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:04:26,947 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:04:26,947 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 15:04:26,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125149981] [2021-08-13 15:04:26,948 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 15:04:26,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:04:26,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 15:04:26,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 15:04:26,949 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 82 [2021-08-13 15:04:26,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 1021 transitions, 15525 flow. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2021-08-13 15:04:26,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:04:26,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 82 [2021-08-13 15:04:26,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:04:57,116 INFO L129 PetriNetUnfolder]: 69817/129535 cut-off events. [2021-08-13 15:04:57,117 INFO L130 PetriNetUnfolder]: For 143324/6860317 co-relation queries the response was YES. [2021-08-13 15:04:58,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 903423 conditions, 129535 events. 69817/129535 cut-off events. For 143324/6860317 co-relation queries the response was YES. Maximal size of possible extension queue 6592. Compared 1511929 event pairs, 3841 based on Foata normal form. 907/105945 useless extension candidates. Maximal degree in co-relation 902232. Up to 70116 conditions per place. [2021-08-13 15:04:59,999 INFO L132 encePairwiseOnDemand]: 71/82 looper letters, 1145 selfloop transitions, 336 changer transitions 0/1540 dead transitions. [2021-08-13 15:04:59,999 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 1540 transitions, 26689 flow [2021-08-13 15:04:59,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-13 15:04:59,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-13 15:05:00,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 424 transitions. [2021-08-13 15:05:00,000 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8617886178861789 [2021-08-13 15:05:00,000 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 424 transitions. [2021-08-13 15:05:00,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 424 transitions. [2021-08-13 15:05:00,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:05:00,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 424 transitions. [2021-08-13 15:05:00,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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) [2021-08-13 15:05:00,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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) [2021-08-13 15:05:00,002 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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) [2021-08-13 15:05:00,002 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 28 predicate places. [2021-08-13 15:05:00,002 INFO L482 AbstractCegarLoop]: Abstraction has has 120 places, 1540 transitions, 26689 flow [2021-08-13 15:05:00,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2021-08-13 15:05:00,003 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:05:00,003 INFO L266 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 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] [2021-08-13 15:05:00,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-08-13 15:05:00,003 INFO L430 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:05:00,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:05:00,003 INFO L82 PathProgramCache]: Analyzing trace with hash 263520512, now seen corresponding path program 1 times [2021-08-13 15:05:00,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:05:00,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299713971] [2021-08-13 15:05:00,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:05:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:05:00,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:05:00,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:05:00,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:05:00,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:05:00,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:05:00,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:05:00,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:05:00,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:05:00,074 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-13 15:05:00,074 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:05:00,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299713971] [2021-08-13 15:05:00,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299713971] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:05:00,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:05:00,074 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 15:05:00,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154371965] [2021-08-13 15:05:00,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 15:05:00,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:05:00,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 15:05:00,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 15:05:00,076 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 82 [2021-08-13 15:05:00,076 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 1540 transitions, 26689 flow. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2021-08-13 15:05:00,076 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:05:00,076 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 82 [2021-08-13 15:05:00,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:05:46,597 INFO L129 PetriNetUnfolder]: 73077/139792 cut-off events. [2021-08-13 15:05:46,597 INFO L130 PetriNetUnfolder]: For 166731/9509666 co-relation queries the response was YES. [2021-08-13 15:05:47,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1066448 conditions, 139792 events. 73077/139792 cut-off events. For 166731/9509666 co-relation queries the response was YES. Maximal size of possible extension queue 7391. Compared 1704371 event pairs, 4461 based on Foata normal form. 1471/115454 useless extension candidates. Maximal degree in co-relation 1065141. Up to 74778 conditions per place. [2021-08-13 15:05:49,799 INFO L132 encePairwiseOnDemand]: 71/82 looper letters, 1434 selfloop transitions, 438 changer transitions 0/1931 dead transitions. [2021-08-13 15:05:49,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 1931 transitions, 37375 flow [2021-08-13 15:05:49,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-13 15:05:49,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-13 15:05:49,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 421 transitions. [2021-08-13 15:05:49,801 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8556910569105691 [2021-08-13 15:05:49,801 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 421 transitions. [2021-08-13 15:05:49,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 421 transitions. [2021-08-13 15:05:49,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:05:49,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 421 transitions. [2021-08-13 15:05:49,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 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) [2021-08-13 15:05:49,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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) [2021-08-13 15:05:49,803 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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) [2021-08-13 15:05:49,803 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 33 predicate places. [2021-08-13 15:05:49,803 INFO L482 AbstractCegarLoop]: Abstraction has has 125 places, 1931 transitions, 37375 flow [2021-08-13 15:05:49,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2021-08-13 15:05:49,803 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:05:49,803 INFO L266 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 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] [2021-08-13 15:05:49,803 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-08-13 15:05:49,803 INFO L430 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:05:49,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:05:49,804 INFO L82 PathProgramCache]: Analyzing trace with hash 426122715, now seen corresponding path program 1 times [2021-08-13 15:05:49,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:05:49,804 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606960254] [2021-08-13 15:05:49,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:05:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:05:49,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:05:49,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:05:49,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:05:49,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:05:49,858 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-08-13 15:05:49,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:05:49,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606960254] [2021-08-13 15:05:49,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606960254] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:05:49,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:05:49,859 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 15:05:49,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355582743] [2021-08-13 15:05:49,859 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 15:05:49,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:05:49,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 15:05:49,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 15:05:49,860 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 82 [2021-08-13 15:05:49,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 1931 transitions, 37375 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-08-13 15:05:49,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:05:49,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 82 [2021-08-13 15:05:49,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand