/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix045_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 00:02:45,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 00:02:45,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 00:02:45,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 00:02:45,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 00:02:45,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 00:02:45,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 00:02:45,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 00:02:45,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 00:02:45,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 00:02:45,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 00:02:45,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 00:02:45,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 00:02:45,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 00:02:45,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 00:02:45,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 00:02:45,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 00:02:45,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 00:02:45,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 00:02:45,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 00:02:45,637 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative.epf [2021-08-13 00:02:45,683 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 00:02:45,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 00:02:45,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 00:02:45,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 00:02:45,684 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 00:02:45,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 00:02:45,684 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 00:02:45,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 00:02:45,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 00:02:45,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 00:02:45,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 00:02:45,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 00:02:45,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 00:02:45,685 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 00:02:45,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 00:02:45,685 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 00:02:45,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 00:02:45,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 00:02:45,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 00:02:45,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 00:02:45,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 00:02:45,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 00:02:45,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 00:02:45,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 00:02:45,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 00:02:45,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 00:02:45,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 00:02:45,687 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 00:02:45,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 00:02:45,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 00:02:45,687 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 00:02:45,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 00:02:45,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 00:02:45,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 00:02:45,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 00:02:45,948 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 00:02:45,950 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 00:02:45,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix045_tso.opt.i [2021-08-13 00:02:45,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5b34782/00bd8881b55a455fb8b2a834e31c4432/FLAGfcc137654 [2021-08-13 00:02:46,471 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 00:02:46,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix045_tso.opt.i [2021-08-13 00:02:46,489 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5b34782/00bd8881b55a455fb8b2a834e31c4432/FLAGfcc137654 [2021-08-13 00:02:46,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5b34782/00bd8881b55a455fb8b2a834e31c4432 [2021-08-13 00:02:46,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 00:02:46,512 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 00:02:46,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 00:02:46,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 00:02:46,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 00:02:46,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 12:02:46" (1/1) ... [2021-08-13 00:02:46,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da3a25b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:02:46, skipping insertion in model container [2021-08-13 00:02:46,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 12:02:46" (1/1) ... [2021-08-13 00:02:46,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 00:02:46,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 00:02:46,732 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/mix045_tso.opt.i[948,961] [2021-08-13 00:02:46,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 00:02:46,862 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 00:02:46,875 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/mix045_tso.opt.i[948,961] [2021-08-13 00:02:46,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 00:02:46,968 INFO L208 MainTranslator]: Completed translation [2021-08-13 00:02:46,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:02:46 WrapperNode [2021-08-13 00:02:46,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 00:02:46,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 00:02:46,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 00:02:46,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 00:02:46,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:02:46" (1/1) ... [2021-08-13 00:02:46,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:02:46" (1/1) ... [2021-08-13 00:02:47,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 00:02:47,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 00:02:47,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 00:02:47,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 00:02:47,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:02:46" (1/1) ... [2021-08-13 00:02:47,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:02:46" (1/1) ... [2021-08-13 00:02:47,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:02:46" (1/1) ... [2021-08-13 00:02:47,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:02:46" (1/1) ... [2021-08-13 00:02:47,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:02:46" (1/1) ... [2021-08-13 00:02:47,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:02:46" (1/1) ... [2021-08-13 00:02:47,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:02:46" (1/1) ... [2021-08-13 00:02:47,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 00:02:47,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 00:02:47,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 00:02:47,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 00:02:47,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:02:46" (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 00:02:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 00:02:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 00:02:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 00:02:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 00:02:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 00:02:47,101 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 00:02:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 00:02:47,101 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 00:02:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 00:02:47,101 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 00:02:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 00:02:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 00:02:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 00:02:47,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 00:02:47,103 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 00:02:48,518 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 00:02:48,518 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-13 00:02:48,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:02:48 BoogieIcfgContainer [2021-08-13 00:02:48,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 00:02:48,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 00:02:48,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 00:02:48,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 00:02:48,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 12:02:46" (1/3) ... [2021-08-13 00:02:48,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186795e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 12:02:48, skipping insertion in model container [2021-08-13 00:02:48,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:02:46" (2/3) ... [2021-08-13 00:02:48,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186795e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 12:02:48, skipping insertion in model container [2021-08-13 00:02:48,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:02:48" (3/3) ... [2021-08-13 00:02:48,524 INFO L111 eAbstractionObserver]: Analyzing ICFG mix045_tso.opt.i [2021-08-13 00:02:48,529 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 00:02:48,529 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-13 00:02:48,530 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 00:02:48,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,553 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,553 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,553 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,554 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,554 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,554 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,554 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,554 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,555 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,555 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,555 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,555 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,558 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,558 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,558 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,558 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,558 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,559 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,559 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,559 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,559 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,560 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,560 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,560 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,560 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,560 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,560 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,560 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,560 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,560 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,560 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,561 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,561 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,561 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,561 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,561 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,561 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,561 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,562 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,562 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,562 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,562 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,562 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,562 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,562 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,562 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,562 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,563 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,563 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,563 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,563 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,563 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,565 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,565 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,568 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,568 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,568 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,568 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,568 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,568 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,569 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,570 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,570 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,570 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,571 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:02:48,573 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 00:02:48,595 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-13 00:02:48,608 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 00:02:48,608 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 00:02:48,609 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 00:02:48,609 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 00:02:48,609 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 00:02:48,609 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 00:02:48,609 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 00:02:48,609 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 00:02:48,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 117 places, 109 transitions, 233 flow [2021-08-13 00:02:48,649 INFO L129 PetriNetUnfolder]: 2/106 cut-off events. [2021-08-13 00:02:48,649 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 00:02:48,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 106 events. 2/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2021-08-13 00:02:48,652 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 109 transitions, 233 flow [2021-08-13 00:02:48,655 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 106 transitions, 221 flow [2021-08-13 00:02:48,665 INFO L129 PetriNetUnfolder]: 0/71 cut-off events. [2021-08-13 00:02:48,665 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 00:02:48,665 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:02:48,666 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] [2021-08-13 00:02:48,666 INFO L430 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:02:48,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:02:48,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1864432522, now seen corresponding path program 1 times [2021-08-13 00:02:48,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:02:48,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711090472] [2021-08-13 00:02:48,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:02:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:02:48,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:48,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:48,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:48,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:02:48,888 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 00:02:48,889 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:02:48,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711090472] [2021-08-13 00:02:48,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711090472] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:02:48,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:02:48,890 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 00:02:48,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451088111] [2021-08-13 00:02:48,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 00:02:48,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:02:48,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 00:02:48,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 00:02:48,909 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 109 [2021-08-13 00:02:48,915 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 106 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 00:02:48,915 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:02:48,915 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 109 [2021-08-13 00:02:48,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:02:48,989 INFO L129 PetriNetUnfolder]: 16/220 cut-off events. [2021-08-13 00:02:48,989 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 00:02:48,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 220 events. 16/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 665 event pairs, 6 based on Foata normal form. 9/218 useless extension candidates. Maximal degree in co-relation 216. Up to 27 conditions per place. [2021-08-13 00:02:48,992 INFO L132 encePairwiseOnDemand]: 104/109 looper letters, 7 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2021-08-13 00:02:48,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 105 transitions, 237 flow [2021-08-13 00:02:48,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 00:02:48,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 00:02:49,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2021-08-13 00:02:49,005 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9510703363914373 [2021-08-13 00:02:49,005 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 311 transitions. [2021-08-13 00:02:49,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 311 transitions. [2021-08-13 00:02:49,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:02:49,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 311 transitions. [2021-08-13 00:02:49,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 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 00:02:49,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 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 00:02:49,019 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 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 00:02:49,020 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 0 predicate places. [2021-08-13 00:02:49,020 INFO L482 AbstractCegarLoop]: Abstraction has has 114 places, 105 transitions, 237 flow [2021-08-13 00:02:49,020 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 00:02:49,020 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:02:49,020 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] [2021-08-13 00:02:49,021 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 00:02:49,022 INFO L430 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:02:49,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:02:49,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1603108185, now seen corresponding path program 1 times [2021-08-13 00:02:49,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:02:49,023 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042494825] [2021-08-13 00:02:49,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:02:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:02:49,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:49,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:49,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:49,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:02:49,218 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:02:49,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:02:49,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:49,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:49,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:49,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:49,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:49,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:49,246 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 00:02:49,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:02:49,247 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042494825] [2021-08-13 00:02:49,247 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042494825] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:02:49,247 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:02:49,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 00:02:49,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911381538] [2021-08-13 00:02:49,248 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 00:02:49,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:02:49,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 00:02:49,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 00:02:49,250 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 109 [2021-08-13 00:02:49,250 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 105 transitions, 237 flow. Second operand has 6 states, 6 states have (on average 97.16666666666667) internal successors, (583), 6 states have internal predecessors, (583), 0 states have call successors, (0), 0 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 00:02:49,250 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:02:49,250 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 109 [2021-08-13 00:02:49,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:02:49,457 INFO L129 PetriNetUnfolder]: 143/790 cut-off events. [2021-08-13 00:02:49,457 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-08-13 00:02:49,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1145 conditions, 790 events. 143/790 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5678 event pairs, 34 based on Foata normal form. 0/757 useless extension candidates. Maximal degree in co-relation 1093. Up to 149 conditions per place. [2021-08-13 00:02:49,461 INFO L132 encePairwiseOnDemand]: 102/109 looper letters, 10 selfloop transitions, 3 changer transitions 22/129 dead transitions. [2021-08-13 00:02:49,461 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 129 transitions, 359 flow [2021-08-13 00:02:49,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 00:02:49,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 00:02:49,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 899 transitions. [2021-08-13 00:02:49,463 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9164118246687054 [2021-08-13 00:02:49,463 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 899 transitions. [2021-08-13 00:02:49,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 899 transitions. [2021-08-13 00:02:49,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:02:49,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 899 transitions. [2021-08-13 00:02:49,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 99.88888888888889) internal successors, (899), 9 states have internal predecessors, (899), 0 states have call successors, (0), 0 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 00:02:49,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 109.0) internal successors, (1090), 10 states have internal predecessors, (1090), 0 states have call successors, (0), 0 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 00:02:49,468 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 109.0) internal successors, (1090), 10 states have internal predecessors, (1090), 0 states have call successors, (0), 0 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 00:02:49,469 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 8 predicate places. [2021-08-13 00:02:49,469 INFO L482 AbstractCegarLoop]: Abstraction has has 122 places, 129 transitions, 359 flow [2021-08-13 00:02:49,469 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 97.16666666666667) internal successors, (583), 6 states have internal predecessors, (583), 0 states have call successors, (0), 0 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 00:02:49,469 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:02:49,469 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] [2021-08-13 00:02:49,469 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 00:02:49,470 INFO L430 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:02:49,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:02:49,470 INFO L82 PathProgramCache]: Analyzing trace with hash 499998184, now seen corresponding path program 1 times [2021-08-13 00:02:49,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:02:49,470 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979515019] [2021-08-13 00:02:49,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:02:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:02:49,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:49,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:49,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:49,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:02:49,555 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:02:49,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:02:49,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:49,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:49,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:49,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:49,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:49,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:49,592 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 00:02:49,592 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:02:49,592 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979515019] [2021-08-13 00:02:49,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979515019] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:02:49,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:02:49,592 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 00:02:49,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143392693] [2021-08-13 00:02:49,593 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 00:02:49,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:02:49,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 00:02:49,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 00:02:49,594 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 109 [2021-08-13 00:02:49,595 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 129 transitions, 359 flow. Second operand has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 0 states have call successors, (0), 0 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 00:02:49,595 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:02:49,595 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 109 [2021-08-13 00:02:49,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:02:49,798 INFO L129 PetriNetUnfolder]: 244/1259 cut-off events. [2021-08-13 00:02:49,798 INFO L130 PetriNetUnfolder]: For 96/96 co-relation queries the response was YES. [2021-08-13 00:02:49,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2073 conditions, 1259 events. 244/1259 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 10949 event pairs, 41 based on Foata normal form. 0/1224 useless extension candidates. Maximal degree in co-relation 2018. Up to 207 conditions per place. [2021-08-13 00:02:49,804 INFO L132 encePairwiseOnDemand]: 103/109 looper letters, 7 selfloop transitions, 2 changer transitions 52/158 dead transitions. [2021-08-13 00:02:49,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 158 transitions, 571 flow [2021-08-13 00:02:49,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 00:02:49,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 00:02:49,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 896 transitions. [2021-08-13 00:02:49,807 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9133537206931702 [2021-08-13 00:02:49,807 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 896 transitions. [2021-08-13 00:02:49,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 896 transitions. [2021-08-13 00:02:49,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:02:49,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 896 transitions. [2021-08-13 00:02:49,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 99.55555555555556) internal successors, (896), 9 states have internal predecessors, (896), 0 states have call successors, (0), 0 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 00:02:49,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 109.0) internal successors, (1090), 10 states have internal predecessors, (1090), 0 states have call successors, (0), 0 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 00:02:49,811 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 109.0) internal successors, (1090), 10 states have internal predecessors, (1090), 0 states have call successors, (0), 0 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 00:02:49,811 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 16 predicate places. [2021-08-13 00:02:49,811 INFO L482 AbstractCegarLoop]: Abstraction has has 130 places, 158 transitions, 571 flow [2021-08-13 00:02:49,811 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 0 states have call successors, (0), 0 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 00:02:49,811 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:02:49,812 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] [2021-08-13 00:02:49,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 00:02:49,812 INFO L430 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:02:49,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:02:49,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1120694261, now seen corresponding path program 1 times [2021-08-13 00:02:49,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:02:49,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109333681] [2021-08-13 00:02:49,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:02:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:02:49,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:49,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:49,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:49,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:02:49,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:49,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 00:02:49,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:49,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 00:02:50,010 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-08-13 00:02:50,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-08-13 00:02:50,038 INFO L142 QuantifierPusher]: treesize reduction 20, result has 79.6 percent of original size [2021-08-13 00:02:50,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-08-13 00:02:50,053 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:02:50,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:02:50,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:50,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:50,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:50,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:50,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:50,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:50,090 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 00:02:50,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:02:50,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109333681] [2021-08-13 00:02:50,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109333681] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:02:50,091 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:02:50,091 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-13 00:02:50,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131073203] [2021-08-13 00:02:50,092 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-13 00:02:50,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:02:50,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-13 00:02:50,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-13 00:02:50,096 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 109 [2021-08-13 00:02:50,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 158 transitions, 571 flow. Second operand has 9 states, 9 states have (on average 90.33333333333333) internal successors, (813), 9 states have internal predecessors, (813), 0 states have call successors, (0), 0 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 00:02:50,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:02:50,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 109 [2021-08-13 00:02:50,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:02:50,708 INFO L129 PetriNetUnfolder]: 981/3069 cut-off events. [2021-08-13 00:02:50,709 INFO L130 PetriNetUnfolder]: For 854/922 co-relation queries the response was YES. [2021-08-13 00:02:50,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6358 conditions, 3069 events. 981/3069 cut-off events. For 854/922 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 28602 event pairs, 112 based on Foata normal form. 3/3032 useless extension candidates. Maximal degree in co-relation 6297. Up to 491 conditions per place. [2021-08-13 00:02:50,723 INFO L132 encePairwiseOnDemand]: 98/109 looper letters, 15 selfloop transitions, 8 changer transitions 157/259 dead transitions. [2021-08-13 00:02:50,723 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 259 transitions, 1409 flow [2021-08-13 00:02:50,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 00:02:50,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 00:02:50,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1486 transitions. [2021-08-13 00:02:50,726 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8520642201834863 [2021-08-13 00:02:50,726 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1486 transitions. [2021-08-13 00:02:50,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1486 transitions. [2021-08-13 00:02:50,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:02:50,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1486 transitions. [2021-08-13 00:02:50,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 92.875) internal successors, (1486), 16 states have internal predecessors, (1486), 0 states have call successors, (0), 0 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 00:02:50,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 109.0) internal successors, (1853), 17 states have internal predecessors, (1853), 0 states have call successors, (0), 0 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 00:02:50,732 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 109.0) internal successors, (1853), 17 states have internal predecessors, (1853), 0 states have call successors, (0), 0 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 00:02:50,732 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 31 predicate places. [2021-08-13 00:02:50,732 INFO L482 AbstractCegarLoop]: Abstraction has has 145 places, 259 transitions, 1409 flow [2021-08-13 00:02:50,734 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 90.33333333333333) internal successors, (813), 9 states have internal predecessors, (813), 0 states have call successors, (0), 0 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 00:02:50,734 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:02:50,734 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] [2021-08-13 00:02:50,734 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 00:02:50,734 INFO L430 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:02:50,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:02:50,735 INFO L82 PathProgramCache]: Analyzing trace with hash 371679491, now seen corresponding path program 1 times [2021-08-13 00:02:50,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:02:50,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352647519] [2021-08-13 00:02:50,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:02:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:02:50,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:50,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:50,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:50,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:02:50,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:50,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 00:02:50,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:50,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 00:02:50,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:50,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 00:02:50,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:50,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 00:02:50,882 INFO L142 QuantifierPusher]: treesize reduction 20, result has 80.4 percent of original size [2021-08-13 00:02:50,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-08-13 00:02:50,905 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:02:50,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:02:50,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:50,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:50,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:50,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:50,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:50,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:50,945 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 00:02:50,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:02:50,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352647519] [2021-08-13 00:02:50,946 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352647519] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:02:50,946 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:02:50,946 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-13 00:02:50,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540965706] [2021-08-13 00:02:50,947 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-13 00:02:50,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:02:50,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-13 00:02:50,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-08-13 00:02:50,948 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 109 [2021-08-13 00:02:50,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 259 transitions, 1409 flow. Second operand has 11 states, 11 states have (on average 87.45454545454545) internal successors, (962), 11 states have internal predecessors, (962), 0 states have call successors, (0), 0 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 00:02:50,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:02:50,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 109 [2021-08-13 00:02:50,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:02:51,802 INFO L129 PetriNetUnfolder]: 1202/3841 cut-off events. [2021-08-13 00:02:51,802 INFO L130 PetriNetUnfolder]: For 1595/1882 co-relation queries the response was YES. [2021-08-13 00:02:51,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9501 conditions, 3841 events. 1202/3841 cut-off events. For 1595/1882 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 37940 event pairs, 85 based on Foata normal form. 12/3817 useless extension candidates. Maximal degree in co-relation 9431. Up to 1093 conditions per place. [2021-08-13 00:02:51,821 INFO L132 encePairwiseOnDemand]: 97/109 looper letters, 21 selfloop transitions, 11 changer transitions 258/366 dead transitions. [2021-08-13 00:02:51,821 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 366 transitions, 2731 flow [2021-08-13 00:02:51,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-13 00:02:51,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-08-13 00:02:51,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1716 transitions. [2021-08-13 00:02:51,825 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8285852245292129 [2021-08-13 00:02:51,825 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1716 transitions. [2021-08-13 00:02:51,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1716 transitions. [2021-08-13 00:02:51,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:02:51,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1716 transitions. [2021-08-13 00:02:51,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 90.3157894736842) internal successors, (1716), 19 states have internal predecessors, (1716), 0 states have call successors, (0), 0 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 00:02:51,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 109.0) internal successors, (2180), 20 states have internal predecessors, (2180), 0 states have call successors, (0), 0 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 00:02:51,831 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 109.0) internal successors, (2180), 20 states have internal predecessors, (2180), 0 states have call successors, (0), 0 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 00:02:51,831 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 49 predicate places. [2021-08-13 00:02:51,831 INFO L482 AbstractCegarLoop]: Abstraction has has 163 places, 366 transitions, 2731 flow [2021-08-13 00:02:51,832 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 87.45454545454545) internal successors, (962), 11 states have internal predecessors, (962), 0 states have call successors, (0), 0 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 00:02:51,833 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:02:51,833 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] [2021-08-13 00:02:51,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 00:02:51,833 INFO L430 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:02:51,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:02:51,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1398457445, now seen corresponding path program 2 times [2021-08-13 00:02:51,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:02:51,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147452918] [2021-08-13 00:02:51,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:02:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:02:51,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:51,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:51,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:51,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:02:51,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:51,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 00:02:51,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:51,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 00:02:51,955 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.4 percent of original size [2021-08-13 00:02:51,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 00:02:51,968 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.9 percent of original size [2021-08-13 00:02:51,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-08-13 00:02:51,974 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:02:51,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:02:51,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:51,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:51,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:51,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:52,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:52,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:52,003 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 00:02:52,003 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:02:52,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147452918] [2021-08-13 00:02:52,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147452918] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:02:52,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:02:52,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-13 00:02:52,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338314710] [2021-08-13 00:02:52,004 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-13 00:02:52,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:02:52,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-13 00:02:52,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-13 00:02:52,005 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 109 [2021-08-13 00:02:52,006 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 366 transitions, 2731 flow. Second operand has 9 states, 9 states have (on average 92.33333333333333) internal successors, (831), 9 states have internal predecessors, (831), 0 states have call successors, (0), 0 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 00:02:52,006 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:02:52,006 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 109 [2021-08-13 00:02:52,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:02:52,643 INFO L129 PetriNetUnfolder]: 1339/4368 cut-off events. [2021-08-13 00:02:52,643 INFO L130 PetriNetUnfolder]: For 2272/2709 co-relation queries the response was YES. [2021-08-13 00:02:52,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12558 conditions, 4368 events. 1339/4368 cut-off events. For 2272/2709 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 44976 event pairs, 61 based on Foata normal form. 26/4360 useless extension candidates. Maximal degree in co-relation 12483. Up to 1295 conditions per place. [2021-08-13 00:02:52,671 INFO L132 encePairwiseOnDemand]: 100/109 looper letters, 25 selfloop transitions, 11 changer transitions 349/465 dead transitions. [2021-08-13 00:02:52,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 465 transitions, 4387 flow [2021-08-13 00:02:52,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 00:02:52,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 00:02:52,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1054 transitions. [2021-08-13 00:02:52,674 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8790658882402002 [2021-08-13 00:02:52,674 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1054 transitions. [2021-08-13 00:02:52,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1054 transitions. [2021-08-13 00:02:52,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:02:52,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1054 transitions. [2021-08-13 00:02:52,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 95.81818181818181) internal successors, (1054), 11 states have internal predecessors, (1054), 0 states have call successors, (0), 0 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 00:02:52,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 109.0) internal successors, (1308), 12 states have internal predecessors, (1308), 0 states have call successors, (0), 0 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 00:02:52,677 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 109.0) internal successors, (1308), 12 states have internal predecessors, (1308), 0 states have call successors, (0), 0 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 00:02:52,678 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 59 predicate places. [2021-08-13 00:02:52,678 INFO L482 AbstractCegarLoop]: Abstraction has has 173 places, 465 transitions, 4387 flow [2021-08-13 00:02:52,678 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 92.33333333333333) internal successors, (831), 9 states have internal predecessors, (831), 0 states have call successors, (0), 0 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 00:02:52,678 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:02:52,678 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] [2021-08-13 00:02:52,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 00:02:52,679 INFO L430 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:02:52,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:02:52,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1940869806, now seen corresponding path program 1 times [2021-08-13 00:02:52,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:02:52,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364863577] [2021-08-13 00:02:52,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:02:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:02:52,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:52,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:52,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:52,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:02:52,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:52,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 00:02:52,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:52,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 00:02:52,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:52,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 00:02:52,804 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-08-13 00:02:52,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-08-13 00:02:52,810 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-08-13 00:02:52,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-08-13 00:02:52,830 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-08-13 00:02:52,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-08-13 00:02:52,848 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-08-13 00:02:52,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-08-13 00:02:52,863 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:02:52,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:02:52,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:52,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:52,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:52,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:52,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:52,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:52,896 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 00:02:52,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:02:52,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364863577] [2021-08-13 00:02:52,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364863577] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:02:52,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:02:52,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 00:02:52,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296446881] [2021-08-13 00:02:52,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 00:02:52,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:02:52,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 00:02:52,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-08-13 00:02:52,898 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 109 [2021-08-13 00:02:52,899 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 465 transitions, 4387 flow. Second operand has 12 states, 12 states have (on average 88.33333333333333) internal successors, (1060), 12 states have internal predecessors, (1060), 0 states have call successors, (0), 0 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 00:02:52,899 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:02:52,899 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 109 [2021-08-13 00:02:52,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:02:53,710 INFO L129 PetriNetUnfolder]: 1567/5238 cut-off events. [2021-08-13 00:02:53,711 INFO L130 PetriNetUnfolder]: For 3616/4656 co-relation queries the response was YES. [2021-08-13 00:02:53,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17020 conditions, 5238 events. 1567/5238 cut-off events. For 3616/4656 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 56738 event pairs, 61 based on Foata normal form. 50/5254 useless extension candidates. Maximal degree in co-relation 16937. Up to 1468 conditions per place. [2021-08-13 00:02:53,742 INFO L132 encePairwiseOnDemand]: 97/109 looper letters, 28 selfloop transitions, 16 changer transitions 424/545 dead transitions. [2021-08-13 00:02:53,742 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 545 transitions, 6199 flow [2021-08-13 00:02:53,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 00:02:53,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 00:02:53,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1010 transitions. [2021-08-13 00:02:53,744 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8423686405337781 [2021-08-13 00:02:53,744 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1010 transitions. [2021-08-13 00:02:53,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1010 transitions. [2021-08-13 00:02:53,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:02:53,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1010 transitions. [2021-08-13 00:02:53,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 91.81818181818181) internal successors, (1010), 11 states have internal predecessors, (1010), 0 states have call successors, (0), 0 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 00:02:53,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 109.0) internal successors, (1308), 12 states have internal predecessors, (1308), 0 states have call successors, (0), 0 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 00:02:53,748 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 109.0) internal successors, (1308), 12 states have internal predecessors, (1308), 0 states have call successors, (0), 0 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 00:02:53,748 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 69 predicate places. [2021-08-13 00:02:53,748 INFO L482 AbstractCegarLoop]: Abstraction has has 183 places, 545 transitions, 6199 flow [2021-08-13 00:02:53,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 88.33333333333333) internal successors, (1060), 12 states have internal predecessors, (1060), 0 states have call successors, (0), 0 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 00:02:53,749 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:02:53,749 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] [2021-08-13 00:02:53,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 00:02:53,749 INFO L430 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:02:53,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:02:53,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1579247624, now seen corresponding path program 2 times [2021-08-13 00:02:53,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:02:53,750 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380543103] [2021-08-13 00:02:53,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:02:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:02:53,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:53,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:53,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:53,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:02:53,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:53,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 00:02:53,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:53,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 00:02:53,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:53,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 00:02:53,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:53,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 00:02:53,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:53,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 00:02:53,880 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.8 percent of original size [2021-08-13 00:02:53,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-08-13 00:02:53,897 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:02:53,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:02:53,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:53,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:53,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:53,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:53,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:53,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:53,927 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 00:02:53,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:02:53,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380543103] [2021-08-13 00:02:53,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380543103] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:02:53,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:02:53,930 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 00:02:53,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132222996] [2021-08-13 00:02:53,930 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 00:02:53,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:02:53,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 00:02:53,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-08-13 00:02:53,931 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 109 [2021-08-13 00:02:53,932 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 545 transitions, 6199 flow. Second operand has 12 states, 12 states have (on average 89.25) internal successors, (1071), 12 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 00:02:53,932 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:02:53,932 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 109 [2021-08-13 00:02:53,932 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:02:55,093 INFO L129 PetriNetUnfolder]: 1878/6470 cut-off events. [2021-08-13 00:02:55,093 INFO L130 PetriNetUnfolder]: For 5776/7115 co-relation queries the response was YES. [2021-08-13 00:02:55,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23223 conditions, 6470 events. 1878/6470 cut-off events. For 5776/7115 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 73964 event pairs, 49 based on Foata normal form. 124/6560 useless extension candidates. Maximal degree in co-relation 23133. Up to 1825 conditions per place. [2021-08-13 00:02:55,124 INFO L132 encePairwiseOnDemand]: 97/109 looper letters, 29 selfloop transitions, 19 changer transitions 556/682 dead transitions. [2021-08-13 00:02:55,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 682 transitions, 9219 flow [2021-08-13 00:02:55,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 00:02:55,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 00:02:55,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1576 transitions. [2021-08-13 00:02:55,127 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.850512682137075 [2021-08-13 00:02:55,127 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1576 transitions. [2021-08-13 00:02:55,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1576 transitions. [2021-08-13 00:02:55,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:02:55,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1576 transitions. [2021-08-13 00:02:55,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 92.70588235294117) internal successors, (1576), 17 states have internal predecessors, (1576), 0 states have call successors, (0), 0 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 00:02:55,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 109.0) internal successors, (1962), 18 states have internal predecessors, (1962), 0 states have call successors, (0), 0 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 00:02:55,133 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 109.0) internal successors, (1962), 18 states have internal predecessors, (1962), 0 states have call successors, (0), 0 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 00:02:55,133 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 85 predicate places. [2021-08-13 00:02:55,133 INFO L482 AbstractCegarLoop]: Abstraction has has 199 places, 682 transitions, 9219 flow [2021-08-13 00:02:55,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 89.25) internal successors, (1071), 12 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 00:02:55,134 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:02:55,134 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] [2021-08-13 00:02:55,134 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 00:02:55,134 INFO L430 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:02:55,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:02:55,134 INFO L82 PathProgramCache]: Analyzing trace with hash -869942262, now seen corresponding path program 3 times [2021-08-13 00:02:55,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:02:55,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183145990] [2021-08-13 00:02:55,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:02:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:02:55,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:55,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:55,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:55,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:02:55,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:55,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 00:02:55,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:55,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 00:02:55,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:55,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 00:02:55,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:55,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:02:55,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:55,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 00:02:55,238 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-08-13 00:02:55,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-08-13 00:02:55,252 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:02:55,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:02:55,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:55,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:55,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:55,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:55,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:55,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:55,280 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 00:02:55,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:02:55,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183145990] [2021-08-13 00:02:55,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183145990] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:02:55,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:02:55,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 00:02:55,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222757765] [2021-08-13 00:02:55,281 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 00:02:55,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:02:55,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 00:02:55,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-08-13 00:02:55,282 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 109 [2021-08-13 00:02:55,282 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 682 transitions, 9219 flow. Second operand has 12 states, 12 states have (on average 87.41666666666667) internal successors, (1049), 12 states have internal predecessors, (1049), 0 states have call successors, (0), 0 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 00:02:55,282 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:02:55,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 109 [2021-08-13 00:02:55,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:02:56,521 INFO L129 PetriNetUnfolder]: 2008/6950 cut-off events. [2021-08-13 00:02:56,522 INFO L130 PetriNetUnfolder]: For 7363/8898 co-relation queries the response was YES. [2021-08-13 00:02:56,550 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27450 conditions, 6950 events. 2008/6950 cut-off events. For 7363/8898 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 80868 event pairs, 49 based on Foata normal form. 77/6993 useless extension candidates. Maximal degree in co-relation 27351. Up to 1946 conditions per place. [2021-08-13 00:02:56,559 INFO L132 encePairwiseOnDemand]: 97/109 looper letters, 36 selfloop transitions, 15 changer transitions 633/760 dead transitions. [2021-08-13 00:02:56,559 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 760 transitions, 11759 flow [2021-08-13 00:02:56,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 00:02:56,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 00:02:56,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1180 transitions. [2021-08-13 00:02:56,562 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8327452364149612 [2021-08-13 00:02:56,562 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1180 transitions. [2021-08-13 00:02:56,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1180 transitions. [2021-08-13 00:02:56,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:02:56,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1180 transitions. [2021-08-13 00:02:56,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 90.76923076923077) internal successors, (1180), 13 states have internal predecessors, (1180), 0 states have call successors, (0), 0 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 00:02:56,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 109.0) internal successors, (1526), 14 states have internal predecessors, (1526), 0 states have call successors, (0), 0 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 00:02:56,567 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 109.0) internal successors, (1526), 14 states have internal predecessors, (1526), 0 states have call successors, (0), 0 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 00:02:56,567 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 97 predicate places. [2021-08-13 00:02:56,567 INFO L482 AbstractCegarLoop]: Abstraction has has 211 places, 760 transitions, 11759 flow [2021-08-13 00:02:56,567 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 87.41666666666667) internal successors, (1049), 12 states have internal predecessors, (1049), 0 states have call successors, (0), 0 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 00:02:56,567 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:02:56,567 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] [2021-08-13 00:02:56,567 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 00:02:56,568 INFO L430 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:02:56,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:02:56,568 INFO L82 PathProgramCache]: Analyzing trace with hash -2109944848, now seen corresponding path program 4 times [2021-08-13 00:02:56,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:02:56,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624250139] [2021-08-13 00:02:56,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:02:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:02:56,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:56,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:56,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:56,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:02:56,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:56,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 00:02:56,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:56,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 00:02:56,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:56,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 00:02:56,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:56,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 00:02:56,676 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-08-13 00:02:56,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-08-13 00:02:56,696 INFO L142 QuantifierPusher]: treesize reduction 10, result has 84.1 percent of original size [2021-08-13 00:02:56,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 00:02:56,720 INFO L142 QuantifierPusher]: treesize reduction 36, result has 65.4 percent of original size [2021-08-13 00:02:56,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-08-13 00:02:56,741 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:02:56,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:02:56,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:56,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:56,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:56,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:56,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:56,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:56,771 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 00:02:56,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:02:56,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624250139] [2021-08-13 00:02:56,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624250139] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:02:56,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:02:56,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-08-13 00:02:56,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004563529] [2021-08-13 00:02:56,771 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 00:02:56,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:02:56,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 00:02:56,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-08-13 00:02:56,773 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 109 [2021-08-13 00:02:56,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 760 transitions, 11759 flow. Second operand has 13 states, 13 states have (on average 88.23076923076923) internal successors, (1147), 13 states have internal predecessors, (1147), 0 states have call successors, (0), 0 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 00:02:56,774 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:02:56,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 109 [2021-08-13 00:02:56,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:02:58,079 INFO L129 PetriNetUnfolder]: 2051/7185 cut-off events. [2021-08-13 00:02:58,079 INFO L130 PetriNetUnfolder]: For 10344/12288 co-relation queries the response was YES. [2021-08-13 00:02:58,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30947 conditions, 7185 events. 2051/7185 cut-off events. For 10344/12288 co-relation queries the response was YES. Maximal size of possible extension queue 620. Compared 84454 event pairs, 49 based on Foata normal form. 55/7206 useless extension candidates. Maximal degree in co-relation 30840. Up to 2016 conditions per place. [2021-08-13 00:02:58,114 INFO L132 encePairwiseOnDemand]: 98/109 looper letters, 33 selfloop transitions, 18 changer transitions 670/798 dead transitions. [2021-08-13 00:02:58,115 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 798 transitions, 13833 flow [2021-08-13 00:02:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 00:02:58,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 00:02:58,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1549 transitions. [2021-08-13 00:02:58,117 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8359417161359957 [2021-08-13 00:02:58,117 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1549 transitions. [2021-08-13 00:02:58,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1549 transitions. [2021-08-13 00:02:58,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:02:58,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1549 transitions. [2021-08-13 00:02:58,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 91.11764705882354) internal successors, (1549), 17 states have internal predecessors, (1549), 0 states have call successors, (0), 0 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 00:02:58,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 109.0) internal successors, (1962), 18 states have internal predecessors, (1962), 0 states have call successors, (0), 0 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 00:02:58,122 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 109.0) internal successors, (1962), 18 states have internal predecessors, (1962), 0 states have call successors, (0), 0 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 00:02:58,122 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 113 predicate places. [2021-08-13 00:02:58,123 INFO L482 AbstractCegarLoop]: Abstraction has has 227 places, 798 transitions, 13833 flow [2021-08-13 00:02:58,123 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 88.23076923076923) internal successors, (1147), 13 states have internal predecessors, (1147), 0 states have call successors, (0), 0 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 00:02:58,123 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:02:58,123 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] [2021-08-13 00:02:58,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 00:02:58,123 INFO L430 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:02:58,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:02:58,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1722678476, now seen corresponding path program 5 times [2021-08-13 00:02:58,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:02:58,124 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309238187] [2021-08-13 00:02:58,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:02:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:02:58,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:58,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:58,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:58,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:02:58,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:58,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 00:02:58,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:58,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 00:02:58,186 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-08-13 00:02:58,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-08-13 00:02:58,201 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-08-13 00:02:58,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-08-13 00:02:58,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:58,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 00:02:58,230 INFO L142 QuantifierPusher]: treesize reduction 65, result has 44.0 percent of original size [2021-08-13 00:02:58,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-08-13 00:02:58,247 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:02:58,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:02:58,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:58,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:58,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:58,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:58,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:58,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:58,284 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 00:02:58,284 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:02:58,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309238187] [2021-08-13 00:02:58,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309238187] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:02:58,284 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:02:58,285 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 00:02:58,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873602790] [2021-08-13 00:02:58,285 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 00:02:58,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:02:58,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 00:02:58,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-08-13 00:02:58,288 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 109 [2021-08-13 00:02:58,288 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 798 transitions, 13833 flow. Second operand has 12 states, 12 states have (on average 88.33333333333333) internal successors, (1060), 12 states have internal predecessors, (1060), 0 states have call successors, (0), 0 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 00:02:58,288 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:02:58,288 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 109 [2021-08-13 00:02:58,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:02:59,631 INFO L129 PetriNetUnfolder]: 2044/7524 cut-off events. [2021-08-13 00:02:59,631 INFO L130 PetriNetUnfolder]: For 13059/15354 co-relation queries the response was YES. [2021-08-13 00:02:59,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34653 conditions, 7524 events. 2044/7524 cut-off events. For 13059/15354 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 90876 event pairs, 33 based on Foata normal form. 51/7542 useless extension candidates. Maximal degree in co-relation 34538. Up to 2082 conditions per place. [2021-08-13 00:02:59,674 INFO L132 encePairwiseOnDemand]: 99/109 looper letters, 44 selfloop transitions, 12 changer transitions 715/848 dead transitions. [2021-08-13 00:02:59,674 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 848 transitions, 16321 flow [2021-08-13 00:02:59,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 00:02:59,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 00:02:59,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1185 transitions. [2021-08-13 00:02:59,676 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8362738179251941 [2021-08-13 00:02:59,676 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1185 transitions. [2021-08-13 00:02:59,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1185 transitions. [2021-08-13 00:02:59,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:02:59,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1185 transitions. [2021-08-13 00:02:59,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 91.15384615384616) internal successors, (1185), 13 states have internal predecessors, (1185), 0 states have call successors, (0), 0 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 00:02:59,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 109.0) internal successors, (1526), 14 states have internal predecessors, (1526), 0 states have call successors, (0), 0 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 00:02:59,680 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 109.0) internal successors, (1526), 14 states have internal predecessors, (1526), 0 states have call successors, (0), 0 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 00:02:59,680 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 125 predicate places. [2021-08-13 00:02:59,680 INFO L482 AbstractCegarLoop]: Abstraction has has 239 places, 848 transitions, 16321 flow [2021-08-13 00:02:59,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 88.33333333333333) internal successors, (1060), 12 states have internal predecessors, (1060), 0 states have call successors, (0), 0 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 00:02:59,680 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:02:59,680 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] [2021-08-13 00:02:59,680 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-13 00:02:59,681 INFO L430 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:02:59,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:02:59,681 INFO L82 PathProgramCache]: Analyzing trace with hash 808689164, now seen corresponding path program 1 times [2021-08-13 00:02:59,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:02:59,681 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540088038] [2021-08-13 00:02:59,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:02:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:02:59,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:59,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:59,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:59,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:02:59,718 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 00:02:59,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 00:02:59,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:59,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 00:02:59,734 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 00:02:59,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:02:59,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:02:59,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:02:59,741 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 00:02:59,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:02:59,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540088038] [2021-08-13 00:02:59,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540088038] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:02:59,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:02:59,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 00:02:59,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881809722] [2021-08-13 00:02:59,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 00:02:59,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:02:59,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 00:02:59,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 00:02:59,743 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 109 [2021-08-13 00:02:59,743 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 848 transitions, 16321 flow. Second operand has 6 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 0 states have call successors, (0), 0 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 00:02:59,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:02:59,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 109 [2021-08-13 00:02:59,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:03:00,861 INFO L129 PetriNetUnfolder]: 1379/5672 cut-off events. [2021-08-13 00:03:00,862 INFO L130 PetriNetUnfolder]: For 8857/10280 co-relation queries the response was YES. [2021-08-13 00:03:00,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24386 conditions, 5672 events. 1379/5672 cut-off events. For 8857/10280 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 66617 event pairs, 94 based on Foata normal form. 10/5454 useless extension candidates. Maximal degree in co-relation 24268. Up to 1519 conditions per place. [2021-08-13 00:03:00,917 INFO L132 encePairwiseOnDemand]: 99/109 looper letters, 24 selfloop transitions, 17 changer transitions 497/771 dead transitions. [2021-08-13 00:03:00,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 771 transitions, 14103 flow [2021-08-13 00:03:00,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 00:03:00,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 00:03:00,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 993 transitions. [2021-08-13 00:03:00,919 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9110091743119266 [2021-08-13 00:03:00,919 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 993 transitions. [2021-08-13 00:03:00,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 993 transitions. [2021-08-13 00:03:00,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:03:00,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 993 transitions. [2021-08-13 00:03:00,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 99.3) internal successors, (993), 10 states have internal predecessors, (993), 0 states have call successors, (0), 0 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 00:03:00,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 109.0) internal successors, (1199), 11 states have internal predecessors, (1199), 0 states have call successors, (0), 0 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 00:03:00,924 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 109.0) internal successors, (1199), 11 states have internal predecessors, (1199), 0 states have call successors, (0), 0 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 00:03:00,924 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 134 predicate places. [2021-08-13 00:03:00,924 INFO L482 AbstractCegarLoop]: Abstraction has has 248 places, 771 transitions, 14103 flow [2021-08-13 00:03:00,924 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 0 states have call successors, (0), 0 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 00:03:00,924 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:03:00,924 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 00:03:00,925 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-13 00:03:00,925 INFO L430 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:03:00,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:03:00,925 INFO L82 PathProgramCache]: Analyzing trace with hash 614182828, now seen corresponding path program 1 times [2021-08-13 00:03:00,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:03:00,925 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89471665] [2021-08-13 00:03:00,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:03:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:03:00,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:00,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:03:00,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:00,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:03:00,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:00,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:03:00,972 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 00:03:00,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 00:03:00,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:00,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 00:03:00,992 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 00:03:00,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:03:00,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:00,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:03:00,999 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 00:03:00,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:03:00,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89471665] [2021-08-13 00:03:00,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89471665] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:03:00,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:03:00,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 00:03:00,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50653942] [2021-08-13 00:03:00,999 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 00:03:00,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:03:01,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 00:03:01,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 00:03:01,000 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 109 [2021-08-13 00:03:01,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 771 transitions, 14103 flow. Second operand has 7 states, 7 states have (on average 96.14285714285714) internal successors, (673), 7 states have internal predecessors, (673), 0 states have call successors, (0), 0 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 00:03:01,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:03:01,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 109 [2021-08-13 00:03:01,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:03:01,560 INFO L129 PetriNetUnfolder]: 456/1668 cut-off events. [2021-08-13 00:03:01,560 INFO L130 PetriNetUnfolder]: For 2130/4833 co-relation queries the response was YES. [2021-08-13 00:03:01,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5983 conditions, 1668 events. 456/1668 cut-off events. For 2130/4833 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 14002 event pairs, 14 based on Foata normal form. 245/1795 useless extension candidates. Maximal degree in co-relation 5862. Up to 325 conditions per place. [2021-08-13 00:03:01,571 INFO L132 encePairwiseOnDemand]: 99/109 looper letters, 22 selfloop transitions, 44 changer transitions 122/308 dead transitions. [2021-08-13 00:03:01,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 308 transitions, 3755 flow [2021-08-13 00:03:01,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 00:03:01,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 00:03:01,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1292 transitions. [2021-08-13 00:03:01,573 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9117854622441779 [2021-08-13 00:03:01,573 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1292 transitions. [2021-08-13 00:03:01,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1292 transitions. [2021-08-13 00:03:01,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:03:01,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1292 transitions. [2021-08-13 00:03:01,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 99.38461538461539) internal successors, (1292), 13 states have internal predecessors, (1292), 0 states have call successors, (0), 0 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 00:03:01,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 109.0) internal successors, (1526), 14 states have internal predecessors, (1526), 0 states have call successors, (0), 0 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 00:03:01,576 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 109.0) internal successors, (1526), 14 states have internal predecessors, (1526), 0 states have call successors, (0), 0 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 00:03:01,576 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 116 predicate places. [2021-08-13 00:03:01,576 INFO L482 AbstractCegarLoop]: Abstraction has has 230 places, 308 transitions, 3755 flow [2021-08-13 00:03:01,577 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 96.14285714285714) internal successors, (673), 7 states have internal predecessors, (673), 0 states have call successors, (0), 0 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 00:03:01,577 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:03:01,577 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 00:03:01,577 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-13 00:03:01,577 INFO L430 AbstractCegarLoop]: === Iteration 14 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:03:01,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:03:01,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1680258519, now seen corresponding path program 1 times [2021-08-13 00:03:01,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:03:01,578 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760495743] [2021-08-13 00:03:01,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:03:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:03:01,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:01,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:03:01,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:01,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:03:01,611 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:03:01,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:03:01,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:01,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:03:01,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:01,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:03:01,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:01,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:03:01,639 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 00:03:01,639 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:03:01,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760495743] [2021-08-13 00:03:01,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760495743] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:03:01,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:03:01,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 00:03:01,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949883247] [2021-08-13 00:03:01,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 00:03:01,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:03:01,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 00:03:01,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 00:03:01,641 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 109 [2021-08-13 00:03:01,641 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 308 transitions, 3755 flow. Second operand has 6 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 0 states have call successors, (0), 0 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 00:03:01,642 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:03:01,642 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 109 [2021-08-13 00:03:01,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:03:02,035 INFO L129 PetriNetUnfolder]: 758/2760 cut-off events. [2021-08-13 00:03:02,035 INFO L130 PetriNetUnfolder]: For 3847/5097 co-relation queries the response was YES. [2021-08-13 00:03:02,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10637 conditions, 2760 events. 758/2760 cut-off events. For 3847/5097 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 26308 event pairs, 0 based on Foata normal form. 6/2573 useless extension candidates. Maximal degree in co-relation 10513. Up to 540 conditions per place. [2021-08-13 00:03:02,052 INFO L132 encePairwiseOnDemand]: 103/109 looper letters, 21 selfloop transitions, 3 changer transitions 235/425 dead transitions. [2021-08-13 00:03:02,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 425 transitions, 6731 flow [2021-08-13 00:03:02,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 00:03:02,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 00:03:02,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 894 transitions. [2021-08-13 00:03:02,054 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9113149847094801 [2021-08-13 00:03:02,054 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 894 transitions. [2021-08-13 00:03:02,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 894 transitions. [2021-08-13 00:03:02,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:03:02,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 894 transitions. [2021-08-13 00:03:02,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 99.33333333333333) internal successors, (894), 9 states have internal predecessors, (894), 0 states have call successors, (0), 0 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 00:03:02,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 109.0) internal successors, (1090), 10 states have internal predecessors, (1090), 0 states have call successors, (0), 0 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 00:03:02,057 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 109.0) internal successors, (1090), 10 states have internal predecessors, (1090), 0 states have call successors, (0), 0 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 00:03:02,057 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 124 predicate places. [2021-08-13 00:03:02,057 INFO L482 AbstractCegarLoop]: Abstraction has has 238 places, 425 transitions, 6731 flow [2021-08-13 00:03:02,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 0 states have call successors, (0), 0 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 00:03:02,057 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:03:02,057 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] [2021-08-13 00:03:02,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-13 00:03:02,057 INFO L430 AbstractCegarLoop]: === Iteration 15 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:03:02,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:03:02,058 INFO L82 PathProgramCache]: Analyzing trace with hash -2079111469, now seen corresponding path program 1 times [2021-08-13 00:03:02,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:03:02,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99134544] [2021-08-13 00:03:02,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:03:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:03:02,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:02,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:03:02,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:02,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:03:02,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:02,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:03:02,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:02,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:03:02,113 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 00:03:02,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 00:03:02,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:02,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 00:03:02,133 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 00:03:02,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:03:02,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:02,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:03:02,142 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 00:03:02,142 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:03:02,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99134544] [2021-08-13 00:03:02,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99134544] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:03:02,143 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:03:02,143 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 00:03:02,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081493160] [2021-08-13 00:03:02,143 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 00:03:02,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:03:02,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 00:03:02,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 00:03:02,144 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 109 [2021-08-13 00:03:02,145 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 425 transitions, 6731 flow. Second operand has 8 states, 8 states have (on average 96.125) internal successors, (769), 8 states have internal predecessors, (769), 0 states have call successors, (0), 0 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 00:03:02,145 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:03:02,145 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 109 [2021-08-13 00:03:02,145 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:03:02,570 INFO L129 PetriNetUnfolder]: 586/1610 cut-off events. [2021-08-13 00:03:02,571 INFO L130 PetriNetUnfolder]: For 1480/7430 co-relation queries the response was YES. [2021-08-13 00:03:02,579 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5638 conditions, 1610 events. 586/1610 cut-off events. For 1480/7430 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 13468 event pairs, 0 based on Foata normal form. 400/1845 useless extension candidates. Maximal degree in co-relation 5511. Up to 471 conditions per place. [2021-08-13 00:03:02,582 INFO L132 encePairwiseOnDemand]: 99/109 looper letters, 19 selfloop transitions, 48 changer transitions 71/231 dead transitions. [2021-08-13 00:03:02,582 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 231 transitions, 2055 flow [2021-08-13 00:03:02,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 00:03:02,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 00:03:02,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1576 transitions. [2021-08-13 00:03:02,585 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9036697247706422 [2021-08-13 00:03:02,585 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1576 transitions. [2021-08-13 00:03:02,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1576 transitions. [2021-08-13 00:03:02,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:03:02,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1576 transitions. [2021-08-13 00:03:02,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 98.5) internal successors, (1576), 16 states have internal predecessors, (1576), 0 states have call successors, (0), 0 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 00:03:02,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 109.0) internal successors, (1853), 17 states have internal predecessors, (1853), 0 states have call successors, (0), 0 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 00:03:02,589 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 109.0) internal successors, (1853), 17 states have internal predecessors, (1853), 0 states have call successors, (0), 0 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 00:03:02,589 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 97 predicate places. [2021-08-13 00:03:02,589 INFO L482 AbstractCegarLoop]: Abstraction has has 211 places, 231 transitions, 2055 flow [2021-08-13 00:03:02,589 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 96.125) internal successors, (769), 8 states have internal predecessors, (769), 0 states have call successors, (0), 0 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 00:03:02,589 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:03:02,589 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 00:03:02,590 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-13 00:03:02,591 INFO L430 AbstractCegarLoop]: === Iteration 16 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:03:02,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:03:02,591 INFO L82 PathProgramCache]: Analyzing trace with hash -38835091, now seen corresponding path program 1 times [2021-08-13 00:03:02,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:03:02,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193004383] [2021-08-13 00:03:02,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:03:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:03:02,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:02,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:03:02,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:02,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:03:02,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:02,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:03:02,660 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:03:02,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:03:02,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:02,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:03:02,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:02,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:03:02,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:03:02,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:03:02,689 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 00:03:02,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:03:02,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193004383] [2021-08-13 00:03:02,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193004383] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:03:02,690 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:03:02,690 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 00:03:02,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341793524] [2021-08-13 00:03:02,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 00:03:02,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:03:02,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 00:03:02,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 00:03:02,692 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 109 [2021-08-13 00:03:02,693 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 231 transitions, 2055 flow. Second operand has 7 states, 7 states have (on average 96.42857142857143) internal successors, (675), 7 states have internal predecessors, (675), 0 states have call successors, (0), 0 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 00:03:02,693 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:03:02,693 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 109 [2021-08-13 00:03:02,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:03:03,135 INFO L129 PetriNetUnfolder]: 1119/3101 cut-off events. [2021-08-13 00:03:03,135 INFO L130 PetriNetUnfolder]: For 2483/5394 co-relation queries the response was YES. [2021-08-13 00:03:03,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10609 conditions, 3101 events. 1119/3101 cut-off events. For 2483/5394 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 30694 event pairs, 0 based on Foata normal form. 3/2812 useless extension candidates. Maximal degree in co-relation 10478. Up to 899 conditions per place. [2021-08-13 00:03:03,146 INFO L132 encePairwiseOnDemand]: 103/109 looper letters, 9 selfloop transitions, 1 changer transitions 108/252 dead transitions. [2021-08-13 00:03:03,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 252 transitions, 2639 flow [2021-08-13 00:03:03,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 00:03:03,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 00:03:03,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 683 transitions. [2021-08-13 00:03:03,148 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8951507208387942 [2021-08-13 00:03:03,148 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 683 transitions. [2021-08-13 00:03:03,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 683 transitions. [2021-08-13 00:03:03,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:03:03,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 683 transitions. [2021-08-13 00:03:03,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 97.57142857142857) internal successors, (683), 7 states have internal predecessors, (683), 0 states have call successors, (0), 0 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 00:03:03,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 109.0) internal successors, (872), 8 states have internal predecessors, (872), 0 states have call successors, (0), 0 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 00:03:03,149 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 109.0) internal successors, (872), 8 states have internal predecessors, (872), 0 states have call successors, (0), 0 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 00:03:03,150 INFO L348 CegarLoopForPetriNet]: 114 programPoint places, 103 predicate places. [2021-08-13 00:03:03,150 INFO L482 AbstractCegarLoop]: Abstraction has has 217 places, 252 transitions, 2639 flow [2021-08-13 00:03:03,150 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 96.42857142857143) internal successors, (675), 7 states have internal predecessors, (675), 0 states have call successors, (0), 0 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 00:03:03,150 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:03:03,150 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 00:03:03,150 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-13 00:03:03,150 INFO L430 AbstractCegarLoop]: === Iteration 17 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:03:03,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:03:03,150 INFO L82 PathProgramCache]: Analyzing trace with hash -600938977, now seen corresponding path program 2 times [2021-08-13 00:03:03,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:03:03,151 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542754219] [2021-08-13 00:03:03,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:03:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 00:03:03,170 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 00:03:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 00:03:03,192 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 00:03:03,231 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-13 00:03:03,231 INFO L651 BasicCegarLoop]: Counterexample might be feasible [2021-08-13 00:03:03,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-13 00:03:03,234 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-13 00:03:03,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 12:03:03 BasicIcfg [2021-08-13 00:03:03,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-13 00:03:03,346 INFO L168 Benchmark]: Toolchain (without parser) took 16833.98 ms. Allocated memory was 199.2 MB in the beginning and 2.1 GB in the end (delta: 1.9 GB). Free memory was 162.5 MB in the beginning and 1.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 482.3 MB. Max. memory is 8.0 GB. [2021-08-13 00:03:03,346 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 199.2 MB. Free memory was 180.7 MB in the beginning and 180.6 MB in the end (delta: 86.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 00:03:03,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 455.71 ms. Allocated memory is still 199.2 MB. Free memory was 162.3 MB in the beginning and 157.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-13 00:03:03,346 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.31 ms. Allocated memory is still 199.2 MB. Free memory was 157.4 MB in the beginning and 154.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-13 00:03:03,346 INFO L168 Benchmark]: Boogie Preprocessor took 27.53 ms. Allocated memory is still 199.2 MB. Free memory was 154.2 MB in the beginning and 152.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-13 00:03:03,346 INFO L168 Benchmark]: RCFGBuilder took 1477.31 ms. Allocated memory was 199.2 MB in the beginning and 246.4 MB in the end (delta: 47.2 MB). Free memory was 152.1 MB in the beginning and 216.4 MB in the end (delta: -64.3 MB). Peak memory consumption was 93.5 MB. Max. memory is 8.0 GB. [2021-08-13 00:03:03,346 INFO L168 Benchmark]: TraceAbstraction took 14824.87 ms. Allocated memory was 246.4 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 215.9 MB in the beginning and 1.6 GB in the end (delta: -1.3 GB). Peak memory consumption was 487.7 MB. Max. memory is 8.0 GB. [2021-08-13 00:03:03,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 199.2 MB. Free memory was 180.7 MB in the beginning and 180.6 MB in the end (delta: 86.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 455.71 ms. Allocated memory is still 199.2 MB. Free memory was 162.3 MB in the beginning and 157.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 41.31 ms. Allocated memory is still 199.2 MB. Free memory was 157.4 MB in the beginning and 154.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.53 ms. Allocated memory is still 199.2 MB. Free memory was 154.2 MB in the beginning and 152.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1477.31 ms. Allocated memory was 199.2 MB in the beginning and 246.4 MB in the end (delta: 47.2 MB). Free memory was 152.1 MB in the beginning and 216.4 MB in the end (delta: -64.3 MB). Peak memory consumption was 93.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14824.87 ms. Allocated memory was 246.4 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 215.9 MB in the beginning and 1.6 GB in the end (delta: -1.3 GB). Peak memory consumption was 487.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0] [L713] 0 int __unbuffered_p2_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0] [L715] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0] [L716] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0] [L717] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0] [L719] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L721] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L722] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L723] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L724] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L725] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L726] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L727] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L728] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0] [L729] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L730] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L731] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L732] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0] [L733] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L734] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L735] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L736] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L737] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L739] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L740] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L741] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L823] 0 pthread_t t1214; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L824] FCALL, FORK 0 pthread_create(&t1214, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L825] 0 pthread_t t1215; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L826] FCALL, FORK 0 pthread_create(&t1215, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L827] 0 pthread_t t1216; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L828] FCALL, FORK 0 pthread_create(&t1216, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L780] 3 y$w_buff1 = y$w_buff0 [L781] 3 y$w_buff0 = 2 [L782] 3 y$w_buff1_used = y$w_buff0_used [L783] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L785] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L786] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L787] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L788] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L789] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L792] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L795] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L798] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L745] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L748] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L760] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L763] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L766] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L766] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L766] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L766] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L767] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L767] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L768] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L768] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L769] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L769] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L770] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L770] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L801] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L801] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L803] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L804] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L805] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L773] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L830] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L834] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L834] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L834] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L834] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L835] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L835] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L836] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L836] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L837] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L837] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L838] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L838] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L841] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L842] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L843] 0 y$flush_delayed = weak$$choice2 [L844] 0 y$mem_tmp = y [L845] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L845] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L846] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L846] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L847] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L847] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L848] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L848] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L849] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L849] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L850] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L850] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L851] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L851] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L852] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L853] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L853] 0 y = y$flush_delayed ? y$mem_tmp : y [L854] 0 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] COND TRUE 0 !expression VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] 0 reach_error() VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 137 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 9.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 14626.1ms, OverallIterations: 17, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 11912.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 45.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 208 SDtfs, 758 SDslu, 852 SDs, 0 SdLazy, 1563 SolverSat, 346 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1312.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 246 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 2310.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=16321occurred in iteration=11, InterpolantAutomatonStates: 193, 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: 52.0ms SsaConstructionTime, 497.1ms SatisfiabilityAnalysisTime, 1865.8ms InterpolantComputationTime, 1295 NumberOfCodeBlocks, 1295 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1194 ConstructedInterpolants, 0 QuantifiedInterpolants, 6383 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 proved your program to be incorrect! Received shutdown request...