/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-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix030_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 10:09:27,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 10:09:27,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 10:09:27,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 10:09:27,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 10:09:27,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 10:09:27,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 10:09:27,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 10:09:27,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 10:09:27,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 10:09:27,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 10:09:27,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 10:09:27,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 10:09:27,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 10:09:27,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 10:09:27,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 10:09:27,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 10:09:27,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 10:09:27,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 10:09:27,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 10:09:27,487 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-Hitting.epf [2021-08-13 10:09:27,524 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 10:09:27,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 10:09:27,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 10:09:27,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 10:09:27,527 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 10:09:27,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 10:09:27,527 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 10:09:27,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 10:09:27,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 10:09:27,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 10:09:27,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 10:09:27,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 10:09:27,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 10:09:27,528 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 10:09:27,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 10:09:27,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 10:09:27,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 10:09:27,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 10:09:27,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 10:09:27,529 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 10:09:27,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 10:09:27,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 10:09:27,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 10:09:27,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 10:09:27,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 10:09:27,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 10:09:27,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 10:09:27,530 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 10:09:27,530 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 10:09:27,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 10:09:27,530 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 10:09:27,530 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 10:09:27,530 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 10:09:27,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 10:09:27,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 10:09:27,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 10:09:27,785 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 10:09:27,785 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 10:09:27,786 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix030_rmo.opt.i [2021-08-13 10:09:27,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee26757c7/dd9f8b97969d40eb8382ef1186fcc42e/FLAG123389d90 [2021-08-13 10:09:28,281 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 10:09:28,281 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_rmo.opt.i [2021-08-13 10:09:28,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee26757c7/dd9f8b97969d40eb8382ef1186fcc42e/FLAG123389d90 [2021-08-13 10:09:28,311 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee26757c7/dd9f8b97969d40eb8382ef1186fcc42e [2021-08-13 10:09:28,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 10:09:28,314 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 10:09:28,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 10:09:28,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 10:09:28,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 10:09:28,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 10:09:28" (1/1) ... [2021-08-13 10:09:28,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c34408d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:09:28, skipping insertion in model container [2021-08-13 10:09:28,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 10:09:28" (1/1) ... [2021-08-13 10:09:28,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 10:09:28,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 10:09:28,502 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-wmm/mix030_rmo.opt.i[948,961] [2021-08-13 10:09:28,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 10:09:28,706 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 10:09:28,716 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-wmm/mix030_rmo.opt.i[948,961] [2021-08-13 10:09:28,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 10:09:28,821 INFO L208 MainTranslator]: Completed translation [2021-08-13 10:09:28,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:09:28 WrapperNode [2021-08-13 10:09:28,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 10:09:28,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 10:09:28,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 10:09:28,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 10:09:28,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:09:28" (1/1) ... [2021-08-13 10:09:28,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:09:28" (1/1) ... [2021-08-13 10:09:28,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 10:09:28,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 10:09:28,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 10:09:28,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 10:09:28,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:09:28" (1/1) ... [2021-08-13 10:09:28,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:09:28" (1/1) ... [2021-08-13 10:09:28,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:09:28" (1/1) ... [2021-08-13 10:09:28,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:09:28" (1/1) ... [2021-08-13 10:09:28,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:09:28" (1/1) ... [2021-08-13 10:09:28,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:09:28" (1/1) ... [2021-08-13 10:09:28,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:09:28" (1/1) ... [2021-08-13 10:09:28,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 10:09:28,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 10:09:28,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 10:09:28,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 10:09:28,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:09:28" (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 10:09:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 10:09:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 10:09:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 10:09:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 10:09:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 10:09:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 10:09:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 10:09:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 10:09:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 10:09:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 10:09:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-08-13 10:09:28,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-08-13 10:09:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 10:09:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 10:09:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 10:09:28,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 10:09:28,977 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 10:09:30,378 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 10:09:30,378 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-13 10:09:30,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 10:09:30 BoogieIcfgContainer [2021-08-13 10:09:30,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 10:09:30,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 10:09:30,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 10:09:30,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 10:09:30,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 10:09:28" (1/3) ... [2021-08-13 10:09:30,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e970e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 10:09:30, skipping insertion in model container [2021-08-13 10:09:30,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:09:28" (2/3) ... [2021-08-13 10:09:30,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e970e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 10:09:30, skipping insertion in model container [2021-08-13 10:09:30,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 10:09:30" (3/3) ... [2021-08-13 10:09:30,384 INFO L111 eAbstractionObserver]: Analyzing ICFG mix030_rmo.opt.i [2021-08-13 10:09:30,389 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 10:09:30,389 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-13 10:09:30,389 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 10:09:30,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,412 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,412 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,413 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,413 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,413 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,413 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,413 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,414 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,414 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,414 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,415 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,415 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,415 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,415 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,415 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,415 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,415 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,416 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,416 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,416 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,416 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,416 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,416 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,416 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,416 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,416 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,416 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,417 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,417 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,417 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,417 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,417 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,417 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,417 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,417 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,417 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,417 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,417 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,419 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,419 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,419 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,419 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,419 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,419 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,419 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,419 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,420 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,420 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,420 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,420 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,420 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,420 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,420 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,420 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,420 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,420 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,420 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,420 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,420 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,421 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,421 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,421 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,421 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,421 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,421 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,421 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,422 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,422 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,422 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,422 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,423 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,423 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,423 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,423 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,423 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,424 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,424 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,424 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,424 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,424 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,425 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,425 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,428 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,428 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,428 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,428 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:09:30,429 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 10:09:30,443 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-08-13 10:09:30,455 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 10:09:30,455 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 10:09:30,455 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 10:09:30,456 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 10:09:30,456 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 10:09:30,456 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 10:09:30,456 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 10:09:30,456 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 10:09:30,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 138 places, 127 transitions, 274 flow [2021-08-13 10:09:30,490 INFO L129 PetriNetUnfolder]: 2/123 cut-off events. [2021-08-13 10:09:30,490 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 10:09:30,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 123 events. 2/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 69 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2021-08-13 10:09:30,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 127 transitions, 274 flow [2021-08-13 10:09:30,496 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 123 transitions, 258 flow [2021-08-13 10:09:30,505 INFO L129 PetriNetUnfolder]: 0/73 cut-off events. [2021-08-13 10:09:30,505 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 10:09:30,505 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:09:30,506 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 10:09:30,506 INFO L430 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:09:30,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:09:30,510 INFO L82 PathProgramCache]: Analyzing trace with hash -386527450, now seen corresponding path program 1 times [2021-08-13 10:09:30,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:09:30,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830824999] [2021-08-13 10:09:30,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:09:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:09:30,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:30,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:30,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:30,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:09:30,716 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 10:09:30,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:09:30,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830824999] [2021-08-13 10:09:30,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830824999] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:09:30,718 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:09:30,718 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 10:09:30,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612656374] [2021-08-13 10:09:30,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 10:09:30,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:09:30,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 10:09:30,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 10:09:30,735 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 127 [2021-08-13 10:09:30,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 123 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 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 10:09:30,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:09:30,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 127 [2021-08-13 10:09:30,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:09:30,852 INFO L129 PetriNetUnfolder]: 49/304 cut-off events. [2021-08-13 10:09:30,852 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 10:09:30,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 304 events. 49/304 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1155 event pairs, 9 based on Foata normal form. 14/302 useless extension candidates. Maximal degree in co-relation 351. Up to 65 conditions per place. [2021-08-13 10:09:30,857 INFO L132 encePairwiseOnDemand]: 122/127 looper letters, 9 selfloop transitions, 2 changer transitions 0/123 dead transitions. [2021-08-13 10:09:30,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 123 transitions, 280 flow [2021-08-13 10:09:30,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 10:09:30,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 10:09:30,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2021-08-13 10:09:30,870 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9553805774278216 [2021-08-13 10:09:30,871 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 364 transitions. [2021-08-13 10:09:30,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 364 transitions. [2021-08-13 10:09:30,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:09:30,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 364 transitions. [2021-08-13 10:09:30,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 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 10:09:30,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 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 10:09:30,885 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 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 10:09:30,886 INFO L348 CegarLoopForPetriNet]: 134 programPoint places, 0 predicate places. [2021-08-13 10:09:30,886 INFO L482 AbstractCegarLoop]: Abstraction has has 134 places, 123 transitions, 280 flow [2021-08-13 10:09:30,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 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 10:09:30,887 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:09:30,887 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:09:30,888 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 10:09:30,888 INFO L430 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:09:30,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:09:30,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1061660364, now seen corresponding path program 1 times [2021-08-13 10:09:30,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:09:30,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985955436] [2021-08-13 10:09:30,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:09:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:09:31,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:31,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:31,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:31,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:09:31,027 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:09:31,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:09:31,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:31,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:31,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:31,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:31,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:31,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:31,053 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 10:09:31,053 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:09:31,053 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985955436] [2021-08-13 10:09:31,053 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985955436] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:09:31,053 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:09:31,053 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 10:09:31,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651360608] [2021-08-13 10:09:31,054 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 10:09:31,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:09:31,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 10:09:31,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 10:09:31,056 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 127 [2021-08-13 10:09:31,057 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 123 transitions, 280 flow. Second operand has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 0 states have call successors, (0), 0 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 10:09:31,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:09:31,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 127 [2021-08-13 10:09:31,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:09:31,239 INFO L129 PetriNetUnfolder]: 251/1188 cut-off events. [2021-08-13 10:09:31,240 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2021-08-13 10:09:31,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1762 conditions, 1188 events. 251/1188 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 9147 event pairs, 109 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 1707. Up to 238 conditions per place. [2021-08-13 10:09:31,248 INFO L132 encePairwiseOnDemand]: 120/127 looper letters, 11 selfloop transitions, 3 changer transitions 25/150 dead transitions. [2021-08-13 10:09:31,248 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 150 transitions, 416 flow [2021-08-13 10:09:31,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 10:09:31,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 10:09:31,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1056 transitions. [2021-08-13 10:09:31,250 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9238845144356955 [2021-08-13 10:09:31,250 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1056 transitions. [2021-08-13 10:09:31,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1056 transitions. [2021-08-13 10:09:31,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:09:31,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1056 transitions. [2021-08-13 10:09:31,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.33333333333333) internal successors, (1056), 9 states have internal predecessors, (1056), 0 states have call successors, (0), 0 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 10:09:31,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 0 states have call successors, (0), 0 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 10:09:31,256 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 0 states have call successors, (0), 0 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 10:09:31,256 INFO L348 CegarLoopForPetriNet]: 134 programPoint places, 8 predicate places. [2021-08-13 10:09:31,257 INFO L482 AbstractCegarLoop]: Abstraction has has 142 places, 150 transitions, 416 flow [2021-08-13 10:09:31,257 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 0 states have call successors, (0), 0 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 10:09:31,257 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:09:31,257 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:09:31,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 10:09:31,257 INFO L430 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:09:31,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:09:31,258 INFO L82 PathProgramCache]: Analyzing trace with hash -845161747, now seen corresponding path program 1 times [2021-08-13 10:09:31,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:09:31,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957837037] [2021-08-13 10:09:31,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:09:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:09:31,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:31,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:31,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:31,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:09:31,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:31,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 10:09:31,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:31,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 10:09:31,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:31,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 10:09:31,421 INFO L142 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-08-13 10:09:31,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 10:09:31,436 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:09:31,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:09:31,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:31,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:31,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:31,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:31,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:31,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:31,464 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 10:09:31,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:09:31,465 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957837037] [2021-08-13 10:09:31,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957837037] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:09:31,465 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:09:31,465 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-13 10:09:31,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585831293] [2021-08-13 10:09:31,465 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-08-13 10:09:31,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:09:31,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-13 10:09:31,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-08-13 10:09:31,467 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 127 [2021-08-13 10:09:31,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 150 transitions, 416 flow. Second operand has 10 states, 10 states have (on average 107.1) internal successors, (1071), 10 states have internal predecessors, (1071), 0 states have call successors, (0), 0 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 10:09:31,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:09:31,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 127 [2021-08-13 10:09:31,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:09:32,223 INFO L129 PetriNetUnfolder]: 1506/4524 cut-off events. [2021-08-13 10:09:32,223 INFO L130 PetriNetUnfolder]: For 993/1149 co-relation queries the response was YES. [2021-08-13 10:09:32,240 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8596 conditions, 4524 events. 1506/4524 cut-off events. For 993/1149 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 43264 event pairs, 397 based on Foata normal form. 4/4419 useless extension candidates. Maximal degree in co-relation 8535. Up to 884 conditions per place. [2021-08-13 10:09:32,247 INFO L132 encePairwiseOnDemand]: 115/127 looper letters, 18 selfloop transitions, 10 changer transitions 116/237 dead transitions. [2021-08-13 10:09:32,248 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 237 transitions, 986 flow [2021-08-13 10:09:32,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-13 10:09:32,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-08-13 10:09:32,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1665 transitions. [2021-08-13 10:09:32,252 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8740157480314961 [2021-08-13 10:09:32,252 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1665 transitions. [2021-08-13 10:09:32,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1665 transitions. [2021-08-13 10:09:32,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:09:32,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1665 transitions. [2021-08-13 10:09:32,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 111.0) internal successors, (1665), 15 states have internal predecessors, (1665), 0 states have call successors, (0), 0 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 10:09:32,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 127.0) internal successors, (2032), 16 states have internal predecessors, (2032), 0 states have call successors, (0), 0 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 10:09:32,259 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 127.0) internal successors, (2032), 16 states have internal predecessors, (2032), 0 states have call successors, (0), 0 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 10:09:32,259 INFO L348 CegarLoopForPetriNet]: 134 programPoint places, 22 predicate places. [2021-08-13 10:09:32,259 INFO L482 AbstractCegarLoop]: Abstraction has has 156 places, 237 transitions, 986 flow [2021-08-13 10:09:32,260 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 107.1) internal successors, (1071), 10 states have internal predecessors, (1071), 0 states have call successors, (0), 0 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 10:09:32,260 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:09:32,260 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:09:32,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 10:09:32,260 INFO L430 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:09:32,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:09:32,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1455551863, now seen corresponding path program 1 times [2021-08-13 10:09:32,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:09:32,261 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932698747] [2021-08-13 10:09:32,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:09:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:09:32,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:32,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:32,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:32,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:09:32,325 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:09:32,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:09:32,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:32,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:32,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:32,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:32,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:32,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:32,350 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 10:09:32,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:09:32,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932698747] [2021-08-13 10:09:32,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932698747] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:09:32,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:09:32,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 10:09:32,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953101853] [2021-08-13 10:09:32,351 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 10:09:32,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:09:32,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 10:09:32,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 10:09:32,352 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 127 [2021-08-13 10:09:32,353 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 237 transitions, 986 flow. Second operand has 6 states, 6 states have (on average 114.33333333333333) internal successors, (686), 6 states have internal predecessors, (686), 0 states have call successors, (0), 0 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 10:09:32,353 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:09:32,353 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 127 [2021-08-13 10:09:32,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:09:33,245 INFO L129 PetriNetUnfolder]: 2473/7729 cut-off events. [2021-08-13 10:09:33,245 INFO L130 PetriNetUnfolder]: For 2416/3052 co-relation queries the response was YES. [2021-08-13 10:09:33,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16702 conditions, 7729 events. 2473/7729 cut-off events. For 2416/3052 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 84385 event pairs, 549 based on Foata normal form. 13/7585 useless extension candidates. Maximal degree in co-relation 16638. Up to 1596 conditions per place. [2021-08-13 10:09:33,286 INFO L132 encePairwiseOnDemand]: 121/127 looper letters, 15 selfloop transitions, 3 changer transitions 175/301 dead transitions. [2021-08-13 10:09:33,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 301 transitions, 1634 flow [2021-08-13 10:09:33,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 10:09:33,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 10:09:33,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1055 transitions. [2021-08-13 10:09:33,288 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9230096237970253 [2021-08-13 10:09:33,288 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1055 transitions. [2021-08-13 10:09:33,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1055 transitions. [2021-08-13 10:09:33,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:09:33,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1055 transitions. [2021-08-13 10:09:33,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 0 states have call successors, (0), 0 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 10:09:33,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 0 states have call successors, (0), 0 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 10:09:33,292 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 0 states have call successors, (0), 0 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 10:09:33,292 INFO L348 CegarLoopForPetriNet]: 134 programPoint places, 30 predicate places. [2021-08-13 10:09:33,292 INFO L482 AbstractCegarLoop]: Abstraction has has 164 places, 301 transitions, 1634 flow [2021-08-13 10:09:33,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 114.33333333333333) internal successors, (686), 6 states have internal predecessors, (686), 0 states have call successors, (0), 0 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 10:09:33,293 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:09:33,293 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:09:33,293 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 10:09:33,293 INFO L430 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:09:33,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:09:33,293 INFO L82 PathProgramCache]: Analyzing trace with hash 756770130, now seen corresponding path program 1 times [2021-08-13 10:09:33,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:09:33,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297347057] [2021-08-13 10:09:33,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:09:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:09:33,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:33,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:33,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:33,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:09:33,344 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:09:33,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:09:33,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:33,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:33,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:33,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:33,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:33,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:33,369 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 10:09:33,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:09:33,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297347057] [2021-08-13 10:09:33,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297347057] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:09:33,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:09:33,370 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 10:09:33,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846976506] [2021-08-13 10:09:33,370 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 10:09:33,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:09:33,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 10:09:33,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 10:09:33,371 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 127 [2021-08-13 10:09:33,372 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 301 transitions, 1634 flow. Second operand has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 10:09:33,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:09:33,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 127 [2021-08-13 10:09:33,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:09:34,500 INFO L129 PetriNetUnfolder]: 2952/9422 cut-off events. [2021-08-13 10:09:34,500 INFO L130 PetriNetUnfolder]: For 4619/5351 co-relation queries the response was YES. [2021-08-13 10:09:34,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22314 conditions, 9422 events. 2952/9422 cut-off events. For 4619/5351 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 108468 event pairs, 518 based on Foata normal form. 17/9344 useless extension candidates. Maximal degree in co-relation 22247. Up to 2007 conditions per place. [2021-08-13 10:09:34,631 INFO L132 encePairwiseOnDemand]: 121/127 looper letters, 11 selfloop transitions, 3 changer transitions 307/433 dead transitions. [2021-08-13 10:09:34,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 433 transitions, 3202 flow [2021-08-13 10:09:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 10:09:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 10:09:34,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1058 transitions. [2021-08-13 10:09:34,633 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9256342957130359 [2021-08-13 10:09:34,633 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1058 transitions. [2021-08-13 10:09:34,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1058 transitions. [2021-08-13 10:09:34,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:09:34,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1058 transitions. [2021-08-13 10:09:34,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.55555555555556) internal successors, (1058), 9 states have internal predecessors, (1058), 0 states have call successors, (0), 0 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 10:09:34,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 0 states have call successors, (0), 0 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 10:09:34,637 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 0 states have call successors, (0), 0 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 10:09:34,638 INFO L348 CegarLoopForPetriNet]: 134 programPoint places, 38 predicate places. [2021-08-13 10:09:34,638 INFO L482 AbstractCegarLoop]: Abstraction has has 172 places, 433 transitions, 3202 flow [2021-08-13 10:09:34,638 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 10:09:34,638 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:09:34,638 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:09:34,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 10:09:34,638 INFO L430 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:09:34,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:09:34,639 INFO L82 PathProgramCache]: Analyzing trace with hash -681340579, now seen corresponding path program 1 times [2021-08-13 10:09:34,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:09:34,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743912485] [2021-08-13 10:09:34,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:09:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:09:34,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:34,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:34,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:34,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:09:34,761 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:09:34,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:09:34,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:34,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:34,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:34,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:34,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:34,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:34,789 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 10:09:34,789 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:09:34,789 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743912485] [2021-08-13 10:09:34,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743912485] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:09:34,790 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:09:34,790 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 10:09:34,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854264935] [2021-08-13 10:09:34,791 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 10:09:34,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:09:34,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 10:09:34,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 10:09:34,793 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 127 [2021-08-13 10:09:34,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 433 transitions, 3202 flow. Second operand has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 0 states have call successors, (0), 0 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 10:09:34,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:09:34,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 127 [2021-08-13 10:09:34,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:09:40,063 INFO L129 PetriNetUnfolder]: 14760/40254 cut-off events. [2021-08-13 10:09:40,063 INFO L130 PetriNetUnfolder]: For 28546/31246 co-relation queries the response was YES. [2021-08-13 10:09:40,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100391 conditions, 40254 events. 14760/40254 cut-off events. For 28546/31246 co-relation queries the response was YES. Maximal size of possible extension queue 2682. Compared 541352 event pairs, 1962 based on Foata normal form. 53/39850 useless extension candidates. Maximal degree in co-relation 100321. Up to 7238 conditions per place. [2021-08-13 10:09:40,322 INFO L132 encePairwiseOnDemand]: 120/127 looper letters, 13 selfloop transitions, 3 changer transitions 704/832 dead transitions. [2021-08-13 10:09:40,323 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 832 transitions, 8380 flow [2021-08-13 10:09:40,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 10:09:40,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 10:09:40,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1061 transitions. [2021-08-13 10:09:40,325 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9282589676290464 [2021-08-13 10:09:40,325 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1061 transitions. [2021-08-13 10:09:40,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1061 transitions. [2021-08-13 10:09:40,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:09:40,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1061 transitions. [2021-08-13 10:09:40,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.88888888888889) internal successors, (1061), 9 states have internal predecessors, (1061), 0 states have call successors, (0), 0 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 10:09:40,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 0 states have call successors, (0), 0 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 10:09:40,329 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 0 states have call successors, (0), 0 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 10:09:40,329 INFO L348 CegarLoopForPetriNet]: 134 programPoint places, 46 predicate places. [2021-08-13 10:09:40,329 INFO L482 AbstractCegarLoop]: Abstraction has has 180 places, 832 transitions, 8380 flow [2021-08-13 10:09:40,330 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 0 states have call successors, (0), 0 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 10:09:40,330 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:09:40,330 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:09:40,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 10:09:40,330 INFO L430 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:09:40,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:09:40,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1876903885, now seen corresponding path program 1 times [2021-08-13 10:09:40,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:09:40,331 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477755266] [2021-08-13 10:09:40,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:09:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:09:40,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:40,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:40,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:40,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:09:40,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:40,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 10:09:40,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:40,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 10:09:40,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:40,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 10:09:40,406 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.4 percent of original size [2021-08-13 10:09:40,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 10:09:40,417 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:09:40,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:09:40,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:40,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:40,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:40,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:40,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:40,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:40,450 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 10:09:40,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:09:40,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477755266] [2021-08-13 10:09:40,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477755266] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:09:40,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:09:40,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-13 10:09:40,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364307844] [2021-08-13 10:09:40,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-08-13 10:09:40,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:09:40,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-13 10:09:40,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-08-13 10:09:40,452 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 127 [2021-08-13 10:09:40,453 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 832 transitions, 8380 flow. Second operand has 10 states, 10 states have (on average 107.2) internal successors, (1072), 10 states have internal predecessors, (1072), 0 states have call successors, (0), 0 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 10:09:40,453 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:09:40,453 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 127 [2021-08-13 10:09:40,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:09:47,366 INFO L129 PetriNetUnfolder]: 15994/43313 cut-off events. [2021-08-13 10:09:47,366 INFO L130 PetriNetUnfolder]: For 37193/42318 co-relation queries the response was YES. [2021-08-13 10:09:47,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125165 conditions, 43313 events. 15994/43313 cut-off events. For 37193/42318 co-relation queries the response was YES. Maximal size of possible extension queue 2883. Compared 585783 event pairs, 1733 based on Foata normal form. 102/42828 useless extension candidates. Maximal degree in co-relation 125089. Up to 13925 conditions per place. [2021-08-13 10:09:47,645 INFO L132 encePairwiseOnDemand]: 118/127 looper letters, 35 selfloop transitions, 8 changer transitions 895/1034 dead transitions. [2021-08-13 10:09:47,646 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 1034 transitions, 12400 flow [2021-08-13 10:09:47,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 10:09:47,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 10:09:47,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1336 transitions. [2021-08-13 10:09:47,648 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8766404199475065 [2021-08-13 10:09:47,648 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1336 transitions. [2021-08-13 10:09:47,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1336 transitions. [2021-08-13 10:09:47,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:09:47,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1336 transitions. [2021-08-13 10:09:47,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 111.33333333333333) internal successors, (1336), 12 states have internal predecessors, (1336), 0 states have call successors, (0), 0 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 10:09:47,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 127.0) internal successors, (1651), 13 states have internal predecessors, (1651), 0 states have call successors, (0), 0 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 10:09:47,653 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 127.0) internal successors, (1651), 13 states have internal predecessors, (1651), 0 states have call successors, (0), 0 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 10:09:47,653 INFO L348 CegarLoopForPetriNet]: 134 programPoint places, 57 predicate places. [2021-08-13 10:09:47,653 INFO L482 AbstractCegarLoop]: Abstraction has has 191 places, 1034 transitions, 12400 flow [2021-08-13 10:09:47,653 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 107.2) internal successors, (1072), 10 states have internal predecessors, (1072), 0 states have call successors, (0), 0 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 10:09:47,653 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:09:47,654 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:09:47,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 10:09:47,654 INFO L430 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:09:47,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:09:47,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1667194624, now seen corresponding path program 1 times [2021-08-13 10:09:47,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:09:47,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722404925] [2021-08-13 10:09:47,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:09:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:09:47,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:47,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:47,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:47,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:09:47,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:47,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 10:09:47,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:47,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 10:09:47,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:47,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 10:09:47,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:47,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 10:09:47,761 INFO L142 QuantifierPusher]: treesize reduction 20, result has 79.6 percent of original size [2021-08-13 10:09:47,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-08-13 10:09:47,782 INFO L142 QuantifierPusher]: treesize reduction 37, result has 45.6 percent of original size [2021-08-13 10:09:47,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 10:09:47,798 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:09:47,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:09:47,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:47,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:47,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:47,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:47,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:47,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:47,828 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 10:09:47,829 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:09:47,829 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722404925] [2021-08-13 10:09:47,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722404925] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:09:47,829 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:09:47,829 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 10:09:47,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333311224] [2021-08-13 10:09:47,830 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 10:09:47,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:09:47,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 10:09:47,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-08-13 10:09:47,831 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 127 [2021-08-13 10:09:47,832 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 1034 transitions, 12400 flow. Second operand has 12 states, 12 states have (on average 106.08333333333333) internal successors, (1273), 12 states have internal predecessors, (1273), 0 states have call successors, (0), 0 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 10:09:47,832 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:09:47,832 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 127 [2021-08-13 10:09:47,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:09:58,380 INFO L129 PetriNetUnfolder]: 20869/56360 cut-off events. [2021-08-13 10:09:58,380 INFO L130 PetriNetUnfolder]: For 63614/73583 co-relation queries the response was YES. [2021-08-13 10:09:58,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184615 conditions, 56360 events. 20869/56360 cut-off events. For 63614/73583 co-relation queries the response was YES. Maximal size of possible extension queue 3752. Compared 788606 event pairs, 1856 based on Foata normal form. 335/55888 useless extension candidates. Maximal degree in co-relation 184532. Up to 18775 conditions per place. [2021-08-13 10:09:58,785 INFO L132 encePairwiseOnDemand]: 114/127 looper letters, 26 selfloop transitions, 16 changer transitions 1333/1470 dead transitions. [2021-08-13 10:09:58,786 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 1470 transitions, 20770 flow [2021-08-13 10:09:58,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 10:09:58,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 10:09:58,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1756 transitions. [2021-08-13 10:09:58,789 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8641732283464567 [2021-08-13 10:09:58,789 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1756 transitions. [2021-08-13 10:09:58,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1756 transitions. [2021-08-13 10:09:58,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:09:58,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1756 transitions. [2021-08-13 10:09:58,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 109.75) internal successors, (1756), 16 states have internal predecessors, (1756), 0 states have call successors, (0), 0 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 10:09:58,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 127.0) internal successors, (2159), 17 states have internal predecessors, (2159), 0 states have call successors, (0), 0 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 10:09:58,795 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 127.0) internal successors, (2159), 17 states have internal predecessors, (2159), 0 states have call successors, (0), 0 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 10:09:58,796 INFO L348 CegarLoopForPetriNet]: 134 programPoint places, 72 predicate places. [2021-08-13 10:09:58,796 INFO L482 AbstractCegarLoop]: Abstraction has has 206 places, 1470 transitions, 20770 flow [2021-08-13 10:09:58,796 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 106.08333333333333) internal successors, (1273), 12 states have internal predecessors, (1273), 0 states have call successors, (0), 0 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 10:09:58,796 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:09:58,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:09:58,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 10:09:58,796 INFO L430 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:09:58,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:09:58,797 INFO L82 PathProgramCache]: Analyzing trace with hash -2008934559, now seen corresponding path program 1 times [2021-08-13 10:09:58,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:09:58,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354498753] [2021-08-13 10:09:58,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:09:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:09:58,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:58,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:58,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:58,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:09:58,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:58,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 10:09:58,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:58,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 10:09:58,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:58,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 10:09:58,871 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-08-13 10:09:58,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-08-13 10:09:58,890 INFO L142 QuantifierPusher]: treesize reduction 26, result has 56.7 percent of original size [2021-08-13 10:09:58,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-08-13 10:09:58,907 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:09:58,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:09:58,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:58,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:58,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:58,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:09:58,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:09:58,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:09:58,940 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 10:09:58,940 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:09:58,940 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354498753] [2021-08-13 10:09:58,941 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354498753] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:09:58,941 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:09:58,941 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-13 10:09:58,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544123289] [2021-08-13 10:09:58,941 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-13 10:09:58,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:09:58,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-13 10:09:58,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-13 10:09:58,942 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2021-08-13 10:09:58,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 1470 transitions, 20770 flow. Second operand has 11 states, 11 states have (on average 105.36363636363636) internal successors, (1159), 11 states have internal predecessors, (1159), 0 states have call successors, (0), 0 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 10:09:58,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:09:58,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2021-08-13 10:09:58,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:10:05,734 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([875] L18-->L18-1: Formula: (= v_ULTIMATE.start___VERIFIER_assert_~expression_2 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_2|) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_2|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_2, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_2|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression][1138], [129#P1ENTRYtrue, 161#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|)) (or (<= 1 ULTIMATE.start___VERIFIER_assert_~expression) (<= (+ ULTIMATE.start___VERIFIER_assert_~expression 255) 0))), 291#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|)) (or (<= 1 ULTIMATE.start___VERIFIER_assert_~expression) (<= (+ ULTIMATE.start___VERIFIER_assert_~expression 255) 0))), 295#(= ~y$r_buff0_thd0~0 0), 135#true, 8#L18-1true, 137#true, 139#true, 12#L817true, 141#true, 142#true, 239#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|)) (or (<= 1 ULTIMATE.start___VERIFIER_assert_~expression) (<= (+ ULTIMATE.start___VERIFIER_assert_~expression 255) 0))), 18#L752true, 243#(= ~y$r_buff0_thd0~0 0), 188#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|)) (or (<= 1 ULTIMATE.start___VERIFIER_assert_~expression) (<= (+ ULTIMATE.start___VERIFIER_assert_~expression 255) 0))), 190#true, 222#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|)) (or (<= 1 ULTIMATE.start___VERIFIER_assert_~expression) (<= (+ ULTIMATE.start___VERIFIER_assert_~expression 255) 0))), 31#L804true]) [2021-08-13 10:10:05,734 INFO L384 tUnfolder$Statistics]: this new event has 86 ancestors and is not cut-off event [2021-08-13 10:10:05,748 INFO L387 tUnfolder$Statistics]: existing Event has 86 ancestors and is not cut-off event [2021-08-13 10:10:05,749 INFO L387 tUnfolder$Statistics]: existing Event has 86 ancestors and is not cut-off event [2021-08-13 10:10:05,749 INFO L387 tUnfolder$Statistics]: existing Event has 86 ancestors and is not cut-off event [2021-08-13 10:10:16,112 INFO L129 PetriNetUnfolder]: 25789/69809 cut-off events. [2021-08-13 10:10:16,112 INFO L130 PetriNetUnfolder]: For 100768/116321 co-relation queries the response was YES. [2021-08-13 10:10:16,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 257050 conditions, 69809 events. 25789/69809 cut-off events. For 100768/116321 co-relation queries the response was YES. Maximal size of possible extension queue 4720. Compared 1005116 event pairs, 1935 based on Foata normal form. 441/69384 useless extension candidates. Maximal degree in co-relation 256959. Up to 22330 conditions per place. [2021-08-13 10:10:16,678 INFO L132 encePairwiseOnDemand]: 114/127 looper letters, 36 selfloop transitions, 15 changer transitions 1846/1991 dead transitions. [2021-08-13 10:10:16,679 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 1991 transitions, 32270 flow [2021-08-13 10:10:16,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-13 10:10:16,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-08-13 10:10:16,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2076 transitions. [2021-08-13 10:10:16,684 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8603398259428098 [2021-08-13 10:10:16,684 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2076 transitions. [2021-08-13 10:10:16,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2076 transitions. [2021-08-13 10:10:16,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:10:16,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2076 transitions. [2021-08-13 10:10:16,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 109.26315789473684) internal successors, (2076), 19 states have internal predecessors, (2076), 0 states have call successors, (0), 0 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 10:10:16,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 127.0) internal successors, (2540), 20 states have internal predecessors, (2540), 0 states have call successors, (0), 0 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 10:10:16,692 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 127.0) internal successors, (2540), 20 states have internal predecessors, (2540), 0 states have call successors, (0), 0 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 10:10:16,693 INFO L348 CegarLoopForPetriNet]: 134 programPoint places, 90 predicate places. [2021-08-13 10:10:16,693 INFO L482 AbstractCegarLoop]: Abstraction has has 224 places, 1991 transitions, 32270 flow [2021-08-13 10:10:16,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 105.36363636363636) internal successors, (1159), 11 states have internal predecessors, (1159), 0 states have call successors, (0), 0 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 10:10:16,693 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:10:16,693 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:16,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 10:10:16,693 INFO L430 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:10:16,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:10:16,694 INFO L82 PathProgramCache]: Analyzing trace with hash -848041841, now seen corresponding path program 2 times [2021-08-13 10:10:16,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:10:16,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307108712] [2021-08-13 10:10:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:10:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:10:16,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:16,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:10:16,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:16,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:10:16,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:16,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 10:10:16,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:16,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 10:10:16,784 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-08-13 10:10:16,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 10:10:16,801 INFO L142 QuantifierPusher]: treesize reduction 27, result has 69.0 percent of original size [2021-08-13 10:10:16,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-08-13 10:10:16,829 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:10:16,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:10:16,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:16,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:10:16,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:16,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:10:16,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:16,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:10:16,858 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 10:10:16,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:10:16,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307108712] [2021-08-13 10:10:16,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307108712] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:10:16,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:10:16,859 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-13 10:10:16,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178869591] [2021-08-13 10:10:16,859 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-08-13 10:10:16,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:10:16,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-13 10:10:16,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-08-13 10:10:16,860 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 127 [2021-08-13 10:10:16,861 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 1991 transitions, 32270 flow. Second operand has 10 states, 10 states have (on average 109.2) internal successors, (1092), 10 states have internal predecessors, (1092), 0 states have call successors, (0), 0 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 10:10:16,861 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:10:16,861 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 127 [2021-08-13 10:10:16,861 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:10:44,817 INFO L129 PetriNetUnfolder]: 30333/82941 cut-off events. [2021-08-13 10:10:44,817 INFO L130 PetriNetUnfolder]: For 141795/165725 co-relation queries the response was YES. [2021-08-13 10:10:45,426 INFO L84 FinitePrefix]: Finished finitePrefix Result has 339953 conditions, 82941 events. 30333/82941 cut-off events. For 141795/165725 co-relation queries the response was YES. Maximal size of possible extension queue 5722. Compared 1228761 event pairs, 1333 based on Foata normal form. 558/82626 useless extension candidates. Maximal degree in co-relation 339857. Up to 27034 conditions per place. [2021-08-13 10:10:45,488 INFO L132 encePairwiseOnDemand]: 117/127 looper letters, 45 selfloop transitions, 18 changer transitions 2494/2654 dead transitions. [2021-08-13 10:10:45,488 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 2654 transitions, 48712 flow [2021-08-13 10:10:45,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 10:10:45,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 10:10:45,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1249 transitions. [2021-08-13 10:10:45,490 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8940586972083036 [2021-08-13 10:10:45,490 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1249 transitions. [2021-08-13 10:10:45,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1249 transitions. [2021-08-13 10:10:45,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:10:45,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1249 transitions. [2021-08-13 10:10:45,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.54545454545455) internal successors, (1249), 11 states have internal predecessors, (1249), 0 states have call successors, (0), 0 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 10:10:45,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 127.0) internal successors, (1524), 12 states have internal predecessors, (1524), 0 states have call successors, (0), 0 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 10:10:45,493 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 127.0) internal successors, (1524), 12 states have internal predecessors, (1524), 0 states have call successors, (0), 0 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 10:10:45,494 INFO L348 CegarLoopForPetriNet]: 134 programPoint places, 100 predicate places. [2021-08-13 10:10:45,494 INFO L482 AbstractCegarLoop]: Abstraction has has 234 places, 2654 transitions, 48712 flow [2021-08-13 10:10:45,494 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 109.2) internal successors, (1092), 10 states have internal predecessors, (1092), 0 states have call successors, (0), 0 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 10:10:45,494 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:10:45,494 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:45,494 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 10:10:45,494 INFO L430 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:10:45,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:10:45,495 INFO L82 PathProgramCache]: Analyzing trace with hash -136883468, now seen corresponding path program 1 times [2021-08-13 10:10:45,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:10:45,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383647870] [2021-08-13 10:10:45,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:10:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:10:45,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:45,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:10:45,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:45,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:10:45,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:45,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 10:10:45,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:45,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 10:10:45,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:45,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 10:10:45,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:45,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 10:10:45,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:45,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 10:10:45,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:45,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 10:10:45,594 INFO L142 QuantifierPusher]: treesize reduction 26, result has 56.7 percent of original size [2021-08-13 10:10:45,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-08-13 10:10:45,616 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:10:45,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:10:45,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:45,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:10:45,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:45,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:10:45,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:10:45,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:10:45,652 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 10:10:45,653 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:10:45,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383647870] [2021-08-13 10:10:45,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383647870] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:10:45,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:10:45,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-08-13 10:10:45,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736411671] [2021-08-13 10:10:45,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 10:10:45,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:10:45,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 10:10:45,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-08-13 10:10:45,654 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 127 [2021-08-13 10:10:45,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 2654 transitions, 48712 flow. Second operand has 13 states, 13 states have (on average 104.3076923076923) internal successors, (1356), 13 states have internal predecessors, (1356), 0 states have call successors, (0), 0 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 10:10:45,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:10:45,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 127 [2021-08-13 10:10:45,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:11:01,863 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([875] L18-->L18-1: Formula: (= v_ULTIMATE.start___VERIFIER_assert_~expression_2 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_2|) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_2|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_2, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_2|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression][1403], [161#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|)) (or (<= 1 ULTIMATE.start___VERIFIER_assert_~expression) (<= (+ ULTIMATE.start___VERIFIER_assert_~expression 255) 0))), 129#P1ENTRYtrue, 291#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|)) (or (<= 1 ULTIMATE.start___VERIFIER_assert_~expression) (<= (+ ULTIMATE.start___VERIFIER_assert_~expression 255) 0))), 356#(and (= ~y$r_buff1_thd2~0 0) (= ~y$r_buff0_thd0~0 0) (= ~y$r_buff0_thd2~0 0)), 135#true, 295#(= ~y$r_buff0_thd0~0 0), 8#L18-1true, 137#true, 139#true, 332#(and (= ~y$r_buff1_thd0~0 0) (= ~y$r_buff0_thd0~0 0)), 12#L817true, 141#true, 142#true, 239#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|)) (or (<= 1 ULTIMATE.start___VERIFIER_assert_~expression) (<= (+ ULTIMATE.start___VERIFIER_assert_~expression 255) 0))), 18#L752true, 243#(= ~y$r_buff0_thd0~0 0), 188#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|)) (or (<= 1 ULTIMATE.start___VERIFIER_assert_~expression) (<= (+ ULTIMATE.start___VERIFIER_assert_~expression 255) 0))), 190#true, 222#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|)) (or (<= 1 ULTIMATE.start___VERIFIER_assert_~expression) (<= (+ ULTIMATE.start___VERIFIER_assert_~expression 255) 0))), 31#L804true]) [2021-08-13 10:11:01,863 INFO L384 tUnfolder$Statistics]: this new event has 86 ancestors and is not cut-off event [2021-08-13 10:11:01,863 INFO L387 tUnfolder$Statistics]: existing Event has 86 ancestors and is not cut-off event [2021-08-13 10:11:01,864 INFO L387 tUnfolder$Statistics]: existing Event has 86 ancestors and is not cut-off event [2021-08-13 10:11:01,864 INFO L387 tUnfolder$Statistics]: existing Event has 86 ancestors and is not cut-off event [2021-08-13 10:11:25,400 INFO L129 PetriNetUnfolder]: 32019/88521 cut-off events. [2021-08-13 10:11:25,400 INFO L130 PetriNetUnfolder]: For 186862/220188 co-relation queries the response was YES. [2021-08-13 10:11:25,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 396451 conditions, 88521 events. 32019/88521 cut-off events. For 186862/220188 co-relation queries the response was YES. Maximal size of possible extension queue 6176. Compared 1330081 event pairs, 1163 based on Foata normal form. 695/88328 useless extension candidates. Maximal degree in co-relation 396346. Up to 28902 conditions per place. [2021-08-13 10:11:26,071 INFO L132 encePairwiseOnDemand]: 114/127 looper letters, 53 selfloop transitions, 20 changer transitions 2844/3010 dead transitions. [2021-08-13 10:11:26,072 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 3010 transitions, 61354 flow [2021-08-13 10:11:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-13 10:11:26,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-08-13 10:11:26,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1517 transitions. [2021-08-13 10:11:26,086 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8532058492688414 [2021-08-13 10:11:26,086 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1517 transitions. [2021-08-13 10:11:26,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1517 transitions. [2021-08-13 10:11:26,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:11:26,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1517 transitions. [2021-08-13 10:11:26,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 108.35714285714286) internal successors, (1517), 14 states have internal predecessors, (1517), 0 states have call successors, (0), 0 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 10:11:26,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 127.0) internal successors, (1905), 15 states have internal predecessors, (1905), 0 states have call successors, (0), 0 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 10:11:26,090 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 127.0) internal successors, (1905), 15 states have internal predecessors, (1905), 0 states have call successors, (0), 0 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 10:11:26,090 INFO L348 CegarLoopForPetriNet]: 134 programPoint places, 113 predicate places. [2021-08-13 10:11:26,090 INFO L482 AbstractCegarLoop]: Abstraction has has 247 places, 3010 transitions, 61354 flow [2021-08-13 10:11:26,091 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 104.3076923076923) internal successors, (1356), 13 states have internal predecessors, (1356), 0 states have call successors, (0), 0 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 10:11:26,091 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:11:26,091 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:11:26,091 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-13 10:11:26,091 INFO L430 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:11:26,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:11:26,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1365436208, now seen corresponding path program 2 times [2021-08-13 10:11:26,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:11:26,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181476367] [2021-08-13 10:11:26,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:11:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:11:26,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:11:26,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:11:26,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:11:26,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:11:26,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:11:26,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 10:11:26,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:11:26,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 10:11:26,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:11:26,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 10:11:26,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:11:26,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 10:11:26,345 INFO L142 QuantifierPusher]: treesize reduction 37, result has 50.7 percent of original size [2021-08-13 10:11:26,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-08-13 10:11:26,368 INFO L142 QuantifierPusher]: treesize reduction 37, result has 50.7 percent of original size [2021-08-13 10:11:26,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-08-13 10:11:26,395 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:11:26,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:11:26,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:11:26,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:11:26,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:11:26,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:11:26,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:11:26,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:11:26,432 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 10:11:26,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:11:26,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181476367] [2021-08-13 10:11:26,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181476367] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:11:26,432 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:11:26,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 10:11:26,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112582092] [2021-08-13 10:11:26,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 10:11:26,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:11:26,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 10:11:26,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-08-13 10:11:26,436 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 127 [2021-08-13 10:11:26,442 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 3010 transitions, 61354 flow. Second operand has 12 states, 12 states have (on average 107.16666666666667) internal successors, (1286), 12 states have internal predecessors, (1286), 0 states have call successors, (0), 0 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 10:11:26,442 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:11:26,442 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 127 [2021-08-13 10:11:26,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:12:25,513 INFO L129 PetriNetUnfolder]: 37937/106431 cut-off events. [2021-08-13 10:12:25,513 INFO L130 PetriNetUnfolder]: For 280377/323719 co-relation queries the response was YES. [2021-08-13 10:12:26,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 516064 conditions, 106431 events. 37937/106431 cut-off events. For 280377/323719 co-relation queries the response was YES. Maximal size of possible extension queue 7589. Compared 1649719 event pairs, 1160 based on Foata normal form. 1210/106665 useless extension candidates. Maximal degree in co-relation 515953. Up to 34518 conditions per place. [2021-08-13 10:12:26,605 INFO L132 encePairwiseOnDemand]: 114/127 looper letters, 55 selfloop transitions, 25 changer transitions 3601/3777 dead transitions. [2021-08-13 10:12:26,605 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 3777 transitions, 84908 flow [2021-08-13 10:12:26,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 10:12:26,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 10:12:26,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1895 transitions. [2021-08-13 10:12:26,607 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8777211672070403 [2021-08-13 10:12:26,607 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1895 transitions. [2021-08-13 10:12:26,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1895 transitions. [2021-08-13 10:12:26,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:12:26,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1895 transitions. [2021-08-13 10:12:26,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 111.47058823529412) internal successors, (1895), 17 states have internal predecessors, (1895), 0 states have call successors, (0), 0 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 10:12:26,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 127.0) internal successors, (2286), 18 states have internal predecessors, (2286), 0 states have call successors, (0), 0 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 10:12:26,611 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 127.0) internal successors, (2286), 18 states have internal predecessors, (2286), 0 states have call successors, (0), 0 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 10:12:26,612 INFO L348 CegarLoopForPetriNet]: 134 programPoint places, 129 predicate places. [2021-08-13 10:12:26,612 INFO L482 AbstractCegarLoop]: Abstraction has has 263 places, 3777 transitions, 84908 flow [2021-08-13 10:12:26,612 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 107.16666666666667) internal successors, (1286), 12 states have internal predecessors, (1286), 0 states have call successors, (0), 0 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 10:12:26,612 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:12:26,612 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:12:26,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-13 10:12:26,612 INFO L430 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:12:26,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:12:26,613 INFO L82 PathProgramCache]: Analyzing trace with hash -945597772, now seen corresponding path program 3 times [2021-08-13 10:12:26,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:12:26,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029822936] [2021-08-13 10:12:26,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:12:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:12:26,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:12:26,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:12:26,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:12:26,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:12:26,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:12:26,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 10:12:26,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:12:26,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 10:12:26,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:12:26,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 10:12:26,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:12:26,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 10:12:26,696 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.0 percent of original size [2021-08-13 10:12:26,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-08-13 10:12:26,717 INFO L142 QuantifierPusher]: treesize reduction 21, result has 76.7 percent of original size [2021-08-13 10:12:26,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 10:12:26,747 INFO L142 QuantifierPusher]: treesize reduction 47, result has 64.1 percent of original size [2021-08-13 10:12:26,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-08-13 10:12:26,776 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:12:26,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:12:26,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:12:26,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:12:26,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:12:26,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:12:26,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:12:26,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:12:26,809 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 10:12:26,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:12:26,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029822936] [2021-08-13 10:12:26,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029822936] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:12:26,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:12:26,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-08-13 10:12:26,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964287360] [2021-08-13 10:12:26,809 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 10:12:26,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:12:26,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 10:12:26,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-08-13 10:12:26,811 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 127 [2021-08-13 10:12:26,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 3777 transitions, 84908 flow. Second operand has 13 states, 13 states have (on average 104.3076923076923) internal successors, (1356), 13 states have internal predecessors, (1356), 0 states have call successors, (0), 0 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 10:12:26,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:12:26,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 127 [2021-08-13 10:12:26,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:13:49,454 INFO L129 PetriNetUnfolder]: 38858/109891 cut-off events. [2021-08-13 10:13:49,454 INFO L130 PetriNetUnfolder]: For 344730/396674 co-relation queries the response was YES. [2021-08-13 10:13:50,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 573607 conditions, 109891 events. 38858/109891 cut-off events. For 344730/396674 co-relation queries the response was YES. Maximal size of possible extension queue 7864. Compared 1716386 event pairs, 1147 based on Foata normal form. 1036/109977 useless extension candidates. Maximal degree in co-relation 573487. Up to 35594 conditions per place. [2021-08-13 10:13:50,354 INFO L132 encePairwiseOnDemand]: 114/127 looper letters, 61 selfloop transitions, 24 changer transitions 3892/4070 dead transitions. [2021-08-13 10:13:50,367 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 4070 transitions, 99600 flow [2021-08-13 10:13:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-13 10:13:50,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-08-13 10:13:50,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2161 transitions. [2021-08-13 10:13:50,374 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8507874015748031 [2021-08-13 10:13:50,375 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2161 transitions. [2021-08-13 10:13:50,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2161 transitions. [2021-08-13 10:13:50,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:13:50,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2161 transitions. [2021-08-13 10:13:50,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 108.05) internal successors, (2161), 20 states have internal predecessors, (2161), 0 states have call successors, (0), 0 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 10:13:50,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 127.0) internal successors, (2667), 21 states have internal predecessors, (2667), 0 states have call successors, (0), 0 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 10:13:50,380 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 127.0) internal successors, (2667), 21 states have internal predecessors, (2667), 0 states have call successors, (0), 0 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 10:13:50,380 INFO L348 CegarLoopForPetriNet]: 134 programPoint places, 148 predicate places. [2021-08-13 10:13:50,380 INFO L482 AbstractCegarLoop]: Abstraction has has 282 places, 4070 transitions, 99600 flow [2021-08-13 10:13:50,380 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 104.3076923076923) internal successors, (1356), 13 states have internal predecessors, (1356), 0 states have call successors, (0), 0 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 10:13:50,380 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:13:50,380 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:13:50,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-13 10:13:50,381 INFO L430 AbstractCegarLoop]: === Iteration 14 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:13:50,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:13:50,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1989350072, now seen corresponding path program 4 times [2021-08-13 10:13:50,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:13:50,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894065335] [2021-08-13 10:13:50,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:13:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:13:50,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:13:50,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:13:50,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:13:50,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:13:50,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:13:50,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 10:13:50,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:13:50,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 10:13:50,526 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-08-13 10:13:50,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-08-13 10:13:50,538 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-08-13 10:13:50,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-08-13 10:13:50,558 INFO L142 QuantifierPusher]: treesize reduction 37, result has 43.9 percent of original size [2021-08-13 10:13:50,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 10:13:50,575 INFO L142 QuantifierPusher]: treesize reduction 58, result has 59.2 percent of original size [2021-08-13 10:13:50,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-08-13 10:13:50,603 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:13:50,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:13:50,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:13:50,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:13:50,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:13:50,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:13:50,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:13:50,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:13:50,639 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 10:13:50,639 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:13:50,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894065335] [2021-08-13 10:13:50,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894065335] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:13:50,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:13:50,639 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 10:13:50,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640246773] [2021-08-13 10:13:50,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 10:13:50,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:13:50,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 10:13:50,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-08-13 10:13:50,641 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 127 [2021-08-13 10:13:50,642 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 4070 transitions, 99600 flow. Second operand has 12 states, 12 states have (on average 106.25) internal successors, (1275), 12 states have internal predecessors, (1275), 0 states have call successors, (0), 0 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 10:13:50,642 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:13:50,642 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 127 [2021-08-13 10:13:50,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:14:33,125 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([875] L18-->L18-1: Formula: (= v_ULTIMATE.start___VERIFIER_assert_~expression_2 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_2|) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_2|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_2, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_2|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression][1637], [129#P1ENTRYtrue, 161#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|)) (or (<= 1 ULTIMATE.start___VERIFIER_assert_~expression) (<= (+ ULTIMATE.start___VERIFIER_assert_~expression 255) 0))), 417#(and (= ~y$r_buff1_thd0~0 0) (= ~y$r_buff0_thd0~0 0) (= ~y$r_buff0_thd2~0 0)), 291#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|)) (or (<= 1 ULTIMATE.start___VERIFIER_assert_~expression) (<= (+ ULTIMATE.start___VERIFIER_assert_~expression 255) 0))), 356#(and (= ~y$r_buff1_thd2~0 0) (= ~y$r_buff0_thd0~0 0) (= ~y$r_buff0_thd2~0 0)), 295#(= ~y$r_buff0_thd0~0 0), 135#true, 8#L18-1true, 137#true, 458#(and (= ~y$w_buff1_used~0 0) (= ~y$r_buff0_thd0~0 0) (= ~y$r_buff0_thd2~0 0)), 139#true, 12#L817true, 332#(and (= ~y$r_buff1_thd0~0 0) (= ~y$r_buff0_thd0~0 0)), 141#true, 142#true, 239#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|)) (or (<= 1 ULTIMATE.start___VERIFIER_assert_~expression) (<= (+ ULTIMATE.start___VERIFIER_assert_~expression 255) 0))), 18#L752true, 243#(= ~y$r_buff0_thd0~0 0), 188#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|)) (or (<= 1 ULTIMATE.start___VERIFIER_assert_~expression) (<= (+ ULTIMATE.start___VERIFIER_assert_~expression 255) 0))), 190#true, 222#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|)) (or (<= 1 ULTIMATE.start___VERIFIER_assert_~expression) (<= (+ ULTIMATE.start___VERIFIER_assert_~expression 255) 0))), 382#(= ~y$r_buff0_thd0~0 0), 31#L804true]) [2021-08-13 10:14:33,126 INFO L384 tUnfolder$Statistics]: this new event has 86 ancestors and is not cut-off event [2021-08-13 10:14:33,126 INFO L387 tUnfolder$Statistics]: existing Event has 86 ancestors and is not cut-off event [2021-08-13 10:14:33,126 INFO L387 tUnfolder$Statistics]: existing Event has 86 ancestors and is not cut-off event [2021-08-13 10:14:33,126 INFO L387 tUnfolder$Statistics]: existing Event has 86 ancestors and is not cut-off event [2021-08-13 10:15:41,274 INFO L129 PetriNetUnfolder]: 40553/119074 cut-off events. [2021-08-13 10:15:41,275 INFO L130 PetriNetUnfolder]: For 433649/499681 co-relation queries the response was YES. [2021-08-13 10:15:42,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 659602 conditions, 119074 events. 40553/119074 cut-off events. For 433649/499681 co-relation queries the response was YES. Maximal size of possible extension queue 8631. Compared 1914113 event pairs, 798 based on Foata normal form. 1461/119573 useless extension candidates. Maximal degree in co-relation 659475. Up to 38142 conditions per place. [2021-08-13 10:15:42,476 INFO L132 encePairwiseOnDemand]: 115/127 looper letters, 62 selfloop transitions, 32 changer transitions 4428/4617 dead transitions. [2021-08-13 10:15:42,476 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 4617 transitions, 122492 flow [2021-08-13 10:15:42,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-13 10:15:42,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-08-13 10:15:42,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1976 transitions. [2021-08-13 10:15:42,501 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8643919510061242 [2021-08-13 10:15:42,501 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1976 transitions. [2021-08-13 10:15:42,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1976 transitions. [2021-08-13 10:15:42,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:15:42,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1976 transitions. [2021-08-13 10:15:42,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 109.77777777777777) internal successors, (1976), 18 states have internal predecessors, (1976), 0 states have call successors, (0), 0 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 10:15:42,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 127.0) internal successors, (2413), 19 states have internal predecessors, (2413), 0 states have call successors, (0), 0 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 10:15:42,505 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 127.0) internal successors, (2413), 19 states have internal predecessors, (2413), 0 states have call successors, (0), 0 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 10:15:42,505 INFO L348 CegarLoopForPetriNet]: 134 programPoint places, 165 predicate places. [2021-08-13 10:15:42,505 INFO L482 AbstractCegarLoop]: Abstraction has has 299 places, 4617 transitions, 122492 flow [2021-08-13 10:15:42,506 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 106.25) internal successors, (1275), 12 states have internal predecessors, (1275), 0 states have call successors, (0), 0 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 10:15:42,506 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:15:42,506 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:15:42,506 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-13 10:15:42,506 INFO L430 AbstractCegarLoop]: === Iteration 15 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:15:42,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:15:42,506 INFO L82 PathProgramCache]: Analyzing trace with hash -336886294, now seen corresponding path program 1 times [2021-08-13 10:15:42,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:15:42,507 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413285411] [2021-08-13 10:15:42,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:15:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:15:42,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:15:42,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:15:42,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:15:42,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:15:42,544 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 10:15:42,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 10:15:42,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:15:42,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 10:15:42,560 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 10:15:42,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:15:42,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:15:42,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:15:42,567 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 10:15:42,567 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:15:42,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413285411] [2021-08-13 10:15:42,567 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413285411] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:15:42,567 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:15:42,567 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 10:15:42,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048814070] [2021-08-13 10:15:42,567 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 10:15:42,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:15:42,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 10:15:42,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 10:15:42,568 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 127 [2021-08-13 10:15:42,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 4617 transitions, 122492 flow. Second operand has 6 states, 6 states have (on average 113.16666666666667) internal successors, (679), 6 states have internal predecessors, (679), 0 states have call successors, (0), 0 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 10:15:42,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:15:42,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 127 [2021-08-13 10:15:42,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:18:18,949 INFO L129 PetriNetUnfolder]: 32024/107510 cut-off events. [2021-08-13 10:18:18,949 INFO L130 PetriNetUnfolder]: For 379680/414660 co-relation queries the response was YES. [2021-08-13 10:18:19,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 558287 conditions, 107510 events. 32024/107510 cut-off events. For 379680/414660 co-relation queries the response was YES. Maximal size of possible extension queue 7635. Compared 1812065 event pairs, 2709 based on Foata normal form. 272/104703 useless extension candidates. Maximal degree in co-relation 558157. Up to 32648 conditions per place. [2021-08-13 10:18:20,237 INFO L132 encePairwiseOnDemand]: 116/127 looper letters, 29 selfloop transitions, 20 changer transitions 2075/3689 dead transitions. [2021-08-13 10:18:20,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 3689 transitions, 95618 flow [2021-08-13 10:18:20,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 10:18:20,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 10:18:20,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1171 transitions. [2021-08-13 10:18:20,238 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9220472440944882 [2021-08-13 10:18:20,238 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1171 transitions. [2021-08-13 10:18:20,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1171 transitions. [2021-08-13 10:18:20,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:18:20,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1171 transitions. [2021-08-13 10:18:20,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 117.1) internal successors, (1171), 10 states have internal predecessors, (1171), 0 states have call successors, (0), 0 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 10:18:20,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 127.0) internal successors, (1397), 11 states have internal predecessors, (1397), 0 states have call successors, (0), 0 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 10:18:20,241 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 127.0) internal successors, (1397), 11 states have internal predecessors, (1397), 0 states have call successors, (0), 0 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 10:18:20,241 INFO L348 CegarLoopForPetriNet]: 134 programPoint places, 174 predicate places. [2021-08-13 10:18:20,241 INFO L482 AbstractCegarLoop]: Abstraction has has 308 places, 3689 transitions, 95618 flow [2021-08-13 10:18:20,241 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 113.16666666666667) internal successors, (679), 6 states have internal predecessors, (679), 0 states have call successors, (0), 0 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 10:18:20,241 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:18:20,241 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:18:20,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-13 10:18:20,241 INFO L430 AbstractCegarLoop]: === Iteration 16 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:18:20,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:18:20,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1688060056, now seen corresponding path program 1 times [2021-08-13 10:18:20,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:18:20,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526331488] [2021-08-13 10:18:20,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:18:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:18:20,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:18:20,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:18:20,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:18:20,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:18:20,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:18:20,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:18:20,282 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 10:18:20,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 10:18:20,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:18:20,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 10:18:20,300 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 10:18:20,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:18:20,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:18:20,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:18:20,307 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 10:18:20,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:18:20,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526331488] [2021-08-13 10:18:20,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526331488] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:18:20,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:18:20,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 10:18:20,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928169190] [2021-08-13 10:18:20,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 10:18:20,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:18:20,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 10:18:20,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 10:18:20,308 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 127 [2021-08-13 10:18:20,309 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 3689 transitions, 95618 flow. Second operand has 7 states, 7 states have (on average 113.14285714285714) internal successors, (792), 7 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 10:18:20,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:18:20,309 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 127 [2021-08-13 10:18:20,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2021-08-13 10:18:23,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 10:18:23,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-13 10:18:23,423 WARN L547 AbstractCegarLoop]: Verification canceled [2021-08-13 10:18:23,432 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-13 10:18:23,447 WARN L188 ceAbstractionStarter]: Timeout [2021-08-13 10:18:23,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 10:18:23 BasicIcfg [2021-08-13 10:18:23,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-13 10:18:23,448 INFO L168 Benchmark]: Toolchain (without parser) took 535133.51 ms. Allocated memory was 185.6 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 149.3 MB in the beginning and 5.0 GB in the end (delta: -4.8 GB). Peak memory consumption was 3.3 GB. Max. memory is 8.0 GB. [2021-08-13 10:18:23,449 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 185.6 MB. Free memory is still 167.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 10:18:23,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.39 ms. Allocated memory is still 185.6 MB. Free memory was 149.1 MB in the beginning and 144.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2021-08-13 10:18:23,453 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.49 ms. Allocated memory is still 185.6 MB. Free memory was 144.8 MB in the beginning and 141.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-13 10:18:23,453 INFO L168 Benchmark]: Boogie Preprocessor took 23.33 ms. Allocated memory is still 185.6 MB. Free memory was 141.7 MB in the beginning and 139.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-13 10:18:23,453 INFO L168 Benchmark]: RCFGBuilder took 1482.48 ms. Allocated memory was 185.6 MB in the beginning and 242.2 MB in the end (delta: 56.6 MB). Free memory was 139.0 MB in the beginning and 167.2 MB in the end (delta: -28.2 MB). Peak memory consumption was 84.0 MB. Max. memory is 8.0 GB. [2021-08-13 10:18:23,453 INFO L168 Benchmark]: TraceAbstraction took 533066.53 ms. Allocated memory was 242.2 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 166.7 MB in the beginning and 5.0 GB in the end (delta: -4.8 GB). Peak memory consumption was 3.3 GB. Max. memory is 8.0 GB. [2021-08-13 10:18:23,454 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 185.6 MB. Free memory is still 167.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 505.39 ms. Allocated memory is still 185.6 MB. Free memory was 149.1 MB in the beginning and 144.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.49 ms. Allocated memory is still 185.6 MB. Free memory was 144.8 MB in the beginning and 141.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 23.33 ms. Allocated memory is still 185.6 MB. Free memory was 141.7 MB in the beginning and 139.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1482.48 ms. Allocated memory was 185.6 MB in the beginning and 242.2 MB in the end (delta: 56.6 MB). Free memory was 139.0 MB in the beginning and 167.2 MB in the end (delta: -28.2 MB). Peak memory consumption was 84.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 533066.53 ms. Allocated memory was 242.2 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 166.7 MB in the beginning and 5.0 GB in the end (delta: -4.8 GB). Peak memory consumption was 3.3 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (7states, 112/127 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 6583 conditions, 1989 events (741/1988 cut-off events. For 5976/38379 co-relation queries the response was YES. Maximal size of possible extension queue 1451. Compared 25055 event pairs, 0 based on Foata normal form. 1757/4361 useless extension candidates. Maximal degree in co-relation 6450. Up to 470 conditions per place.). - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (7states, 112/127 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 6583 conditions, 1989 events (741/1988 cut-off events. For 5976/38379 co-relation queries the response was YES. Maximal size of possible extension queue 1451. Compared 25055 event pairs, 0 based on Foata normal form. 1757/4361 useless extension candidates. Maximal degree in co-relation 6450. Up to 470 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 163 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 532970.8ms, OverallIterations: 16, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 530288.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 40.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 223 SDtfs, 875 SDslu, 865 SDs, 0 SdLazy, 1902 SolverSat, 425 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1773.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 2377.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=122492occurred in iteration=14, InterpolantAutomatonStates: 191, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 40.1ms SsaConstructionTime, 455.8ms SatisfiabilityAnalysisTime, 1957.1ms InterpolantComputationTime, 1329 NumberOfCodeBlocks, 1329 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1313 ConstructedInterpolants, 0 QuantifiedInterpolants, 8354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown