/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 01:39:50,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 01:39:50,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 01:39:50,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 01:39:50,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 01:39:50,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 01:39:50,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 01:39:50,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 01:39:50,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 01:39:50,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 01:39:50,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 01:39:50,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 01:39:50,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 01:39:50,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 01:39:50,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 01:39:50,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 01:39:50,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 01:39:50,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 01:39:50,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 01:39:50,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 01:39:50,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 01:39:50,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 01:39:50,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 01:39:50,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 01:39:50,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 01:39:50,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 01:39:50,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 01:39:50,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 01:39:50,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 01:39:50,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 01:39:50,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 01:39:50,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 01:39:50,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 01:39:50,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 01:39:50,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 01:39:50,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 01:39:50,956 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2020-10-16 01:39:50,997 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 01:39:50,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 01:39:51,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 01:39:51,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 01:39:51,001 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 01:39:51,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 01:39:51,001 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 01:39:51,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 01:39:51,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 01:39:51,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 01:39:51,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 01:39:51,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 01:39:51,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 01:39:51,003 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 01:39:51,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 01:39:51,005 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 01:39:51,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 01:39:51,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 01:39:51,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 01:39:51,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 01:39:51,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 01:39:51,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 01:39:51,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 01:39:51,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 01:39:51,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 01:39:51,007 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 01:39:51,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 01:39:51,007 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 01:39:51,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 01:39:51,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 01:39:51,346 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 01:39:51,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 01:39:51,351 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 01:39:51,351 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 01:39:51,352 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_rmo.oepc.i [2020-10-16 01:39:51,428 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52cc9595b/d2d14538d23244b98bb85e5ca45d3fb1/FLAGb3039e75c [2020-10-16 01:39:51,982 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 01:39:51,983 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_rmo.oepc.i [2020-10-16 01:39:52,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52cc9595b/d2d14538d23244b98bb85e5ca45d3fb1/FLAGb3039e75c [2020-10-16 01:39:52,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52cc9595b/d2d14538d23244b98bb85e5ca45d3fb1 [2020-10-16 01:39:52,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 01:39:52,252 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 01:39:52,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 01:39:52,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 01:39:52,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 01:39:52,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:39:52" (1/1) ... [2020-10-16 01:39:52,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc77a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:52, skipping insertion in model container [2020-10-16 01:39:52,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:39:52" (1/1) ... [2020-10-16 01:39:52,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 01:39:52,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 01:39:52,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 01:39:52,801 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 01:39:52,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 01:39:52,976 INFO L208 MainTranslator]: Completed translation [2020-10-16 01:39:52,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:52 WrapperNode [2020-10-16 01:39:52,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 01:39:52,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 01:39:52,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 01:39:52,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 01:39:52,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:52" (1/1) ... [2020-10-16 01:39:53,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:52" (1/1) ... [2020-10-16 01:39:53,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 01:39:53,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 01:39:53,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 01:39:53,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 01:39:53,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:52" (1/1) ... [2020-10-16 01:39:53,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:52" (1/1) ... [2020-10-16 01:39:53,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:52" (1/1) ... [2020-10-16 01:39:53,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:52" (1/1) ... [2020-10-16 01:39:53,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:52" (1/1) ... [2020-10-16 01:39:53,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:52" (1/1) ... [2020-10-16 01:39:53,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:52" (1/1) ... [2020-10-16 01:39:53,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 01:39:53,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 01:39:53,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 01:39:53,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 01:39:53,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:52" (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 [2020-10-16 01:39:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 01:39:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 01:39:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 01:39:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 01:39:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 01:39:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 01:39:53,196 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 01:39:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 01:39:53,197 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 01:39:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 01:39:53,199 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 01:39:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 01:39:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 01:39:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 01:39:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 01:39:53,202 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 01:39:55,044 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 01:39:55,044 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 01:39:55,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:39:55 BoogieIcfgContainer [2020-10-16 01:39:55,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 01:39:55,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 01:39:55,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 01:39:55,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 01:39:55,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:39:52" (1/3) ... [2020-10-16 01:39:55,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29392852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:39:55, skipping insertion in model container [2020-10-16 01:39:55,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:52" (2/3) ... [2020-10-16 01:39:55,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29392852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:39:55, skipping insertion in model container [2020-10-16 01:39:55,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:39:55" (3/3) ... [2020-10-16 01:39:55,055 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_rmo.oepc.i [2020-10-16 01:39:55,067 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 01:39:55,075 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 01:39:55,076 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 01:39:55,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,108 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,108 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,108 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,108 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~mem27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~mem27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,114 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,114 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,114 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,114 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,114 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,114 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,119 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,119 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,119 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,119 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,120 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,120 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,120 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,120 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,121 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,121 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,121 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,121 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,121 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,128 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,128 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,128 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,129 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,129 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,129 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,129 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,129 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,129 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,130 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,130 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,135 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,136 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,136 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,136 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,136 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,136 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,137 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,137 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,137 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,137 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,137 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~mem27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,143 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,144 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,144 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,144 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:39:55,161 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 01:39:55,183 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 01:39:55,184 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 01:39:55,184 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 01:39:55,184 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 01:39:55,184 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 01:39:55,184 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 01:39:55,184 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 01:39:55,184 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 01:39:55,200 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 116 places, 108 transitions, 231 flow [2020-10-16 01:39:55,253 INFO L129 PetriNetUnfolder]: 2/105 cut-off events. [2020-10-16 01:39:55,254 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:39:55,259 INFO L80 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 105 events. 2/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2020-10-16 01:39:55,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 108 transitions, 231 flow [2020-10-16 01:39:55,267 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 94 transitions, 197 flow [2020-10-16 01:39:55,270 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 01:39:55,273 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 94 transitions, 197 flow [2020-10-16 01:39:55,276 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 94 transitions, 197 flow [2020-10-16 01:39:55,277 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 103 places, 94 transitions, 197 flow [2020-10-16 01:39:55,303 INFO L129 PetriNetUnfolder]: 1/94 cut-off events. [2020-10-16 01:39:55,303 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:39:55,304 INFO L80 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 1/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-16 01:39:55,307 INFO L117 LiptonReduction]: Number of co-enabled transitions 954 [2020-10-16 01:39:55,917 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2020-10-16 01:39:55,937 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 2, 4, 2, 1] term [2020-10-16 01:39:55,938 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:55,941 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 01:39:55,941 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:56,051 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-16 01:39:56,140 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 2, 4, 2, 1] term [2020-10-16 01:39:56,141 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:56,142 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 01:39:56,143 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:56,163 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 2, 4, 2, 1] term [2020-10-16 01:39:56,164 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:56,166 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 01:39:56,166 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:56,292 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-10-16 01:39:56,293 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:56,339 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-10-16 01:39:56,339 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:56,421 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 2, 4, 2, 1] term [2020-10-16 01:39:56,421 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:56,422 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 01:39:56,423 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:56,440 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 2, 4, 2, 1] term [2020-10-16 01:39:56,440 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:56,442 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 01:39:56,442 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:57,970 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 238 DAG size of output: 198 [2020-10-16 01:39:57,984 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-10-16 01:39:57,984 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,659 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2020-10-16 01:39:58,809 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,810 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,829 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:39:58,830 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,831 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 01:39:58,831 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,834 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:39:58,834 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:39:58,837 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:39:58,838 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:39:58,839 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,840 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,841 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,842 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,843 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,844 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,845 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,847 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,848 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,848 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,849 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,850 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,851 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,852 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,853 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,854 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,855 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,873 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:39:58,873 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,875 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:39:58,875 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:58,878 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:39:58,878 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 01:39:58,880 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 5, 2, 4, 2, 1] term [2020-10-16 01:39:58,881 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 01:39:58,983 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 3, 2, 1] term [2020-10-16 01:39:58,983 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:39:58,985 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 2, 2, 1] term [2020-10-16 01:39:58,985 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:39:59,000 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 4, 3, 1] term [2020-10-16 01:39:59,000 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:59,001 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 4, 1] term [2020-10-16 01:39:59,001 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:59,111 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:39:59,111 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:59,112 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:39:59,113 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:59,115 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:39:59,116 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 01:39:59,118 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 5, 2, 4, 2, 1] term [2020-10-16 01:39:59,118 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 01:39:59,134 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:39:59,135 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:59,136 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 01:39:59,136 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:59,139 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:39:59,139 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:39:59,141 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:39:59,142 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:39:59,143 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:59,144 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:59,322 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-16 01:39:59,471 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-16 01:39:59,501 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:59,642 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:59,643 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:39:59,837 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:00,003 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:00,067 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:00,067 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:00,191 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 2, 2, 1] term [2020-10-16 01:40:00,191 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 01:40:00,196 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 4, 3, 4, 3, 2, 2, 1] term [2020-10-16 01:40:00,196 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:40:00,225 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:40:00,225 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:00,226 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 01:40:00,226 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:00,228 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 4, 3, 2, 1] term [2020-10-16 01:40:00,229 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:40:00,229 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 3, 2, 1] term [2020-10-16 01:40:00,230 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:40:00,236 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 5, 3, 3, 2, 3, 2, 1] term [2020-10-16 01:40:00,237 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:40:00,239 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 3, 5, 3, 3, 2, 3, 2, 1] term [2020-10-16 01:40:00,240 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:40:00,241 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 5, 3, 3, 2, 3, 2, 1] term [2020-10-16 01:40:00,241 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:40:00,242 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:00,244 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:00,245 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:00,497 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-10-16 01:40:00,635 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:00,654 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:40:00,654 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:00,655 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 01:40:00,656 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:00,660 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 4, 3, 2, 1] term [2020-10-16 01:40:00,661 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:40:00,662 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 3, 2, 1] term [2020-10-16 01:40:00,663 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:40:00,669 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 3, 5, 3, 3, 2, 3, 2, 1] term [2020-10-16 01:40:00,669 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:40:00,671 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 3, 5, 3, 3, 2, 3, 2, 1] term [2020-10-16 01:40:00,671 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:40:00,672 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 3, 5, 3, 3, 2, 3, 2, 1] term [2020-10-16 01:40:00,672 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:40:00,674 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:00,697 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 2, 2, 1] term [2020-10-16 01:40:00,697 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 01:40:00,699 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 4, 3, 4, 3, 2, 2, 1] term [2020-10-16 01:40:00,700 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:40:00,729 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:01,007 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:01,008 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:40:01,344 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2020-10-16 01:40:01,496 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-16 01:40:02,005 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 134 [2020-10-16 01:40:02,251 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-16 01:40:02,256 INFO L132 LiptonReduction]: Checked pairs total: 2520 [2020-10-16 01:40:02,256 INFO L134 LiptonReduction]: Total number of compositions: 77 [2020-10-16 01:40:02,259 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6992 [2020-10-16 01:40:02,270 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2020-10-16 01:40:02,270 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:40:02,270 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:40:02,271 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:40:02,272 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:40:02,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:40:02,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1197949936, now seen corresponding path program 1 times [2020-10-16 01:40:02,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:40:02,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517635515] [2020-10-16 01:40:02,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:40:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:40:02,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:40:02,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517635515] [2020-10-16 01:40:02,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:40:02,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 01:40:02,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391531407] [2020-10-16 01:40:02,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 01:40:02,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:40:02,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 01:40:02,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 01:40:02,602 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 185 [2020-10-16 01:40:02,604 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 47 flow. Second operand 3 states. [2020-10-16 01:40:02,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:40:02,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 185 [2020-10-16 01:40:02,606 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:40:02,653 INFO L129 PetriNetUnfolder]: 21/78 cut-off events. [2020-10-16 01:40:02,653 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:40:02,654 INFO L80 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 78 events. 21/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 276 event pairs, 11 based on Foata normal form. 2/74 useless extension candidates. Maximal degree in co-relation 120. Up to 37 conditions per place. [2020-10-16 01:40:02,656 INFO L132 encePairwiseOnDemand]: 182/185 looper letters, 6 selfloop transitions, 2 changer transitions 0/21 dead transitions. [2020-10-16 01:40:02,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 21 transitions, 67 flow [2020-10-16 01:40:02,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 01:40:02,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 01:40:02,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 501 transitions. [2020-10-16 01:40:02,704 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.9027027027027027 [2020-10-16 01:40:02,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 501 transitions. [2020-10-16 01:40:02,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 501 transitions. [2020-10-16 01:40:02,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:40:02,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 501 transitions. [2020-10-16 01:40:02,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 01:40:02,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 01:40:02,724 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 01:40:02,726 INFO L185 Difference]: Start difference. First operand has 29 places, 19 transitions, 47 flow. Second operand 3 states and 501 transitions. [2020-10-16 01:40:02,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 21 transitions, 67 flow [2020-10-16 01:40:02,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 21 transitions, 64 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-16 01:40:02,732 INFO L241 Difference]: Finished difference. Result has 29 places, 19 transitions, 52 flow [2020-10-16 01:40:02,735 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=29, PETRI_TRANSITIONS=19} [2020-10-16 01:40:02,736 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, 0 predicate places. [2020-10-16 01:40:02,736 INFO L481 AbstractCegarLoop]: Abstraction has has 29 places, 19 transitions, 52 flow [2020-10-16 01:40:02,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 01:40:02,736 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:40:02,737 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:40:02,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 01:40:02,737 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:40:02,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:40:02,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1744614458, now seen corresponding path program 1 times [2020-10-16 01:40:02,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:40:02,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776570521] [2020-10-16 01:40:02,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:40:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:40:02,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:40:02,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776570521] [2020-10-16 01:40:02,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:40:02,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:40:02,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361200810] [2020-10-16 01:40:02,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 01:40:02,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:40:02,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 01:40:02,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 01:40:02,843 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 185 [2020-10-16 01:40:02,843 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 52 flow. Second operand 3 states. [2020-10-16 01:40:02,845 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:40:02,845 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 185 [2020-10-16 01:40:02,845 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:40:02,879 INFO L129 PetriNetUnfolder]: 13/47 cut-off events. [2020-10-16 01:40:02,879 INFO L130 PetriNetUnfolder]: For 11/30 co-relation queries the response was YES. [2020-10-16 01:40:02,881 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 47 events. 13/47 cut-off events. For 11/30 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 145 event pairs, 9 based on Foata normal form. 2/45 useless extension candidates. Maximal degree in co-relation 89. Up to 22 conditions per place. [2020-10-16 01:40:02,882 INFO L132 encePairwiseOnDemand]: 182/185 looper letters, 6 selfloop transitions, 2 changer transitions 0/21 dead transitions. [2020-10-16 01:40:02,882 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 21 transitions, 72 flow [2020-10-16 01:40:02,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 01:40:02,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 01:40:02,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 501 transitions. [2020-10-16 01:40:02,885 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.9027027027027027 [2020-10-16 01:40:02,886 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 501 transitions. [2020-10-16 01:40:02,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 501 transitions. [2020-10-16 01:40:02,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:40:02,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 501 transitions. [2020-10-16 01:40:02,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 01:40:02,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 01:40:02,889 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 01:40:02,889 INFO L185 Difference]: Start difference. First operand has 29 places, 19 transitions, 52 flow. Second operand 3 states and 501 transitions. [2020-10-16 01:40:02,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 21 transitions, 72 flow [2020-10-16 01:40:02,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 21 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 01:40:02,890 INFO L241 Difference]: Finished difference. Result has 30 places, 19 transitions, 56 flow [2020-10-16 01:40:02,891 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=30, PETRI_TRANSITIONS=19} [2020-10-16 01:40:02,891 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2020-10-16 01:40:02,891 INFO L481 AbstractCegarLoop]: Abstraction has has 30 places, 19 transitions, 56 flow [2020-10-16 01:40:02,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 01:40:02,892 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:40:02,892 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:40:02,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 01:40:02,892 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:40:02,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:40:02,893 INFO L82 PathProgramCache]: Analyzing trace with hash 178629012, now seen corresponding path program 1 times [2020-10-16 01:40:02,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:40:02,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397768443] [2020-10-16 01:40:02,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:40:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:40:03,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:40:03,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397768443] [2020-10-16 01:40:03,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:40:03,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 01:40:03,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53849934] [2020-10-16 01:40:03,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 01:40:03,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:40:03,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 01:40:03,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 01:40:03,019 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 185 [2020-10-16 01:40:03,019 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 19 transitions, 56 flow. Second operand 3 states. [2020-10-16 01:40:03,019 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:40:03,020 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 185 [2020-10-16 01:40:03,020 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:40:03,032 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2020-10-16 01:40:03,032 INFO L130 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2020-10-16 01:40:03,032 INFO L80 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 19 events. 0/19 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 01:40:03,032 INFO L132 encePairwiseOnDemand]: 182/185 looper letters, 1 selfloop transitions, 2 changer transitions 0/19 dead transitions. [2020-10-16 01:40:03,032 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 19 transitions, 62 flow [2020-10-16 01:40:03,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 01:40:03,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 01:40:03,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2020-10-16 01:40:03,035 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.9207207207207208 [2020-10-16 01:40:03,035 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 511 transitions. [2020-10-16 01:40:03,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 511 transitions. [2020-10-16 01:40:03,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:40:03,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 511 transitions. [2020-10-16 01:40:03,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 01:40:03,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 01:40:03,041 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 01:40:03,041 INFO L185 Difference]: Start difference. First operand has 30 places, 19 transitions, 56 flow. Second operand 3 states and 511 transitions. [2020-10-16 01:40:03,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 19 transitions, 62 flow [2020-10-16 01:40:03,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 19 transitions, 58 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 01:40:03,044 INFO L241 Difference]: Finished difference. Result has 31 places, 19 transitions, 60 flow [2020-10-16 01:40:03,045 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=31, PETRI_TRANSITIONS=19} [2020-10-16 01:40:03,045 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2020-10-16 01:40:03,045 INFO L481 AbstractCegarLoop]: Abstraction has has 31 places, 19 transitions, 60 flow [2020-10-16 01:40:03,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 01:40:03,045 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:40:03,045 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:40:03,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 01:40:03,046 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:40:03,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:40:03,046 INFO L82 PathProgramCache]: Analyzing trace with hash 2016390827, now seen corresponding path program 1 times [2020-10-16 01:40:03,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:40:03,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482495660] [2020-10-16 01:40:03,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:40:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:40:03,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:40:03,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482495660] [2020-10-16 01:40:03,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:40:03,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 01:40:03,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241448212] [2020-10-16 01:40:03,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 01:40:03,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:40:03,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 01:40:03,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 01:40:03,161 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 185 [2020-10-16 01:40:03,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 19 transitions, 60 flow. Second operand 3 states. [2020-10-16 01:40:03,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:40:03,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 185 [2020-10-16 01:40:03,162 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:40:03,179 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2020-10-16 01:40:03,179 INFO L130 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2020-10-16 01:40:03,180 INFO L80 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 19 events. 0/19 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 01:40:03,180 INFO L132 encePairwiseOnDemand]: 182/185 looper letters, 1 selfloop transitions, 2 changer transitions 0/19 dead transitions. [2020-10-16 01:40:03,180 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 19 transitions, 66 flow [2020-10-16 01:40:03,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 01:40:03,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 01:40:03,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 496 transitions. [2020-10-16 01:40:03,183 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8936936936936937 [2020-10-16 01:40:03,183 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 496 transitions. [2020-10-16 01:40:03,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 496 transitions. [2020-10-16 01:40:03,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:40:03,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 496 transitions. [2020-10-16 01:40:03,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 01:40:03,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 01:40:03,187 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 01:40:03,188 INFO L185 Difference]: Start difference. First operand has 31 places, 19 transitions, 60 flow. Second operand 3 states and 496 transitions. [2020-10-16 01:40:03,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 19 transitions, 66 flow [2020-10-16 01:40:03,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 19 transitions, 62 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 01:40:03,189 INFO L241 Difference]: Finished difference. Result has 32 places, 19 transitions, 64 flow [2020-10-16 01:40:03,190 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=32, PETRI_TRANSITIONS=19} [2020-10-16 01:40:03,190 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2020-10-16 01:40:03,190 INFO L481 AbstractCegarLoop]: Abstraction has has 32 places, 19 transitions, 64 flow [2020-10-16 01:40:03,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 01:40:03,190 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:40:03,191 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:40:03,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 01:40:03,191 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:40:03,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:40:03,191 INFO L82 PathProgramCache]: Analyzing trace with hash -136216585, now seen corresponding path program 1 times [2020-10-16 01:40:03,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:40:03,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770977084] [2020-10-16 01:40:03,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:40:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:40:03,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:40:03,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770977084] [2020-10-16 01:40:03,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:40:03,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 01:40:03,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266549469] [2020-10-16 01:40:03,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 01:40:03,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:40:03,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 01:40:03,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 01:40:03,400 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 185 [2020-10-16 01:40:03,400 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 19 transitions, 64 flow. Second operand 7 states. [2020-10-16 01:40:03,401 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:40:03,401 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 185 [2020-10-16 01:40:03,401 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:40:03,523 INFO L129 PetriNetUnfolder]: 14/62 cut-off events. [2020-10-16 01:40:03,523 INFO L130 PetriNetUnfolder]: For 42/46 co-relation queries the response was YES. [2020-10-16 01:40:03,524 INFO L80 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 62 events. 14/62 cut-off events. For 42/46 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 197 event pairs, 1 based on Foata normal form. 1/63 useless extension candidates. Maximal degree in co-relation 140. Up to 23 conditions per place. [2020-10-16 01:40:03,524 INFO L132 encePairwiseOnDemand]: 180/185 looper letters, 10 selfloop transitions, 5 changer transitions 0/26 dead transitions. [2020-10-16 01:40:03,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 26 transitions, 119 flow [2020-10-16 01:40:03,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:40:03,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:40:03,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 492 transitions. [2020-10-16 01:40:03,527 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6648648648648648 [2020-10-16 01:40:03,527 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 492 transitions. [2020-10-16 01:40:03,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 492 transitions. [2020-10-16 01:40:03,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:40:03,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 492 transitions. [2020-10-16 01:40:03,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:40:03,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:40:03,531 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:40:03,531 INFO L185 Difference]: Start difference. First operand has 32 places, 19 transitions, 64 flow. Second operand 4 states and 492 transitions. [2020-10-16 01:40:03,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 26 transitions, 119 flow [2020-10-16 01:40:03,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 113 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 01:40:03,533 INFO L241 Difference]: Finished difference. Result has 35 places, 22 transitions, 90 flow [2020-10-16 01:40:03,534 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=90, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2020-10-16 01:40:03,534 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, 6 predicate places. [2020-10-16 01:40:03,534 INFO L481 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 90 flow [2020-10-16 01:40:03,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 01:40:03,534 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:40:03,535 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:40:03,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 01:40:03,535 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:40:03,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:40:03,535 INFO L82 PathProgramCache]: Analyzing trace with hash -629846677, now seen corresponding path program 2 times [2020-10-16 01:40:03,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:40:03,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045872340] [2020-10-16 01:40:03,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:40:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:40:03,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:40:03,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045872340] [2020-10-16 01:40:03,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:40:03,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:40:03,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189265152] [2020-10-16 01:40:03,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:40:03,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:40:03,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:40:03,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:40:03,585 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 185 [2020-10-16 01:40:03,586 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 90 flow. Second operand 4 states. [2020-10-16 01:40:03,586 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:40:03,586 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 185 [2020-10-16 01:40:03,586 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:40:03,638 INFO L129 PetriNetUnfolder]: 28/114 cut-off events. [2020-10-16 01:40:03,638 INFO L130 PetriNetUnfolder]: For 189/261 co-relation queries the response was YES. [2020-10-16 01:40:03,639 INFO L80 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 114 events. 28/114 cut-off events. For 189/261 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 549 event pairs, 2 based on Foata normal form. 13/123 useless extension candidates. Maximal degree in co-relation 267. Up to 24 conditions per place. [2020-10-16 01:40:03,640 INFO L132 encePairwiseOnDemand]: 181/185 looper letters, 6 selfloop transitions, 3 changer transitions 1/26 dead transitions. [2020-10-16 01:40:03,640 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 26 transitions, 120 flow [2020-10-16 01:40:03,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:40:03,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:40:03,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 655 transitions. [2020-10-16 01:40:03,646 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8851351351351351 [2020-10-16 01:40:03,646 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 655 transitions. [2020-10-16 01:40:03,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 655 transitions. [2020-10-16 01:40:03,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:40:03,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 655 transitions. [2020-10-16 01:40:03,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:40:03,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:40:03,651 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:40:03,651 INFO L185 Difference]: Start difference. First operand has 35 places, 22 transitions, 90 flow. Second operand 4 states and 655 transitions. [2020-10-16 01:40:03,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 26 transitions, 120 flow [2020-10-16 01:40:03,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 26 transitions, 117 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 01:40:03,656 INFO L241 Difference]: Finished difference. Result has 38 places, 22 transitions, 97 flow [2020-10-16 01:40:03,656 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=38, PETRI_TRANSITIONS=22} [2020-10-16 01:40:03,656 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, 9 predicate places. [2020-10-16 01:40:03,656 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 22 transitions, 97 flow [2020-10-16 01:40:03,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:40:03,657 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:40:03,657 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:40:03,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 01:40:03,657 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:40:03,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:40:03,657 INFO L82 PathProgramCache]: Analyzing trace with hash 143816099, now seen corresponding path program 3 times [2020-10-16 01:40:03,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:40:03,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112042198] [2020-10-16 01:40:03,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:40:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:40:03,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:40:03,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112042198] [2020-10-16 01:40:03,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:40:03,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 01:40:03,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765183415] [2020-10-16 01:40:03,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 01:40:03,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:40:03,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 01:40:03,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 01:40:03,948 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 185 [2020-10-16 01:40:03,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 22 transitions, 97 flow. Second operand 7 states. [2020-10-16 01:40:03,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:40:03,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 185 [2020-10-16 01:40:03,949 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:40:04,098 INFO L129 PetriNetUnfolder]: 13/61 cut-off events. [2020-10-16 01:40:04,098 INFO L130 PetriNetUnfolder]: For 75/79 co-relation queries the response was YES. [2020-10-16 01:40:04,099 INFO L80 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 61 events. 13/61 cut-off events. For 75/79 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 196 event pairs, 1 based on Foata normal form. 3/64 useless extension candidates. Maximal degree in co-relation 153. Up to 22 conditions per place. [2020-10-16 01:40:04,099 INFO L132 encePairwiseOnDemand]: 181/185 looper letters, 10 selfloop transitions, 5 changer transitions 0/26 dead transitions. [2020-10-16 01:40:04,100 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 26 transitions, 137 flow [2020-10-16 01:40:04,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:40:04,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:40:04,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 503 transitions. [2020-10-16 01:40:04,103 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6797297297297298 [2020-10-16 01:40:04,103 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 503 transitions. [2020-10-16 01:40:04,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 503 transitions. [2020-10-16 01:40:04,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:40:04,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 503 transitions. [2020-10-16 01:40:04,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:40:04,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:40:04,107 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:40:04,107 INFO L185 Difference]: Start difference. First operand has 38 places, 22 transitions, 97 flow. Second operand 4 states and 503 transitions. [2020-10-16 01:40:04,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 26 transitions, 137 flow [2020-10-16 01:40:04,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 26 transitions, 125 flow, removed 2 selfloop flow, removed 4 redundant places. [2020-10-16 01:40:04,112 INFO L241 Difference]: Finished difference. Result has 38 places, 23 transitions, 104 flow [2020-10-16 01:40:04,113 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2020-10-16 01:40:04,113 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, 9 predicate places. [2020-10-16 01:40:04,113 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 104 flow [2020-10-16 01:40:04,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 01:40:04,113 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:40:04,114 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:40:04,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 01:40:04,114 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:40:04,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:40:04,114 INFO L82 PathProgramCache]: Analyzing trace with hash 994001719, now seen corresponding path program 1 times [2020-10-16 01:40:04,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:40:04,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295261253] [2020-10-16 01:40:04,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:40:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:40:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:40:04,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295261253] [2020-10-16 01:40:04,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:40:04,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 01:40:04,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382860148] [2020-10-16 01:40:04,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:40:04,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:40:04,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:40:04,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:40:04,254 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 185 [2020-10-16 01:40:04,255 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 23 transitions, 104 flow. Second operand 4 states. [2020-10-16 01:40:04,255 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:40:04,255 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 185 [2020-10-16 01:40:04,255 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:40:04,311 INFO L129 PetriNetUnfolder]: 42/123 cut-off events. [2020-10-16 01:40:04,312 INFO L130 PetriNetUnfolder]: For 86/90 co-relation queries the response was YES. [2020-10-16 01:40:04,313 INFO L80 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 123 events. 42/123 cut-off events. For 86/90 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 565 event pairs, 16 based on Foata normal form. 15/130 useless extension candidates. Maximal degree in co-relation 281. Up to 70 conditions per place. [2020-10-16 01:40:04,314 INFO L132 encePairwiseOnDemand]: 179/185 looper letters, 8 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2020-10-16 01:40:04,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 33 transitions, 156 flow [2020-10-16 01:40:04,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 01:40:04,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 01:40:04,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 808 transitions. [2020-10-16 01:40:04,317 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8735135135135135 [2020-10-16 01:40:04,318 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 808 transitions. [2020-10-16 01:40:04,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 808 transitions. [2020-10-16 01:40:04,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:40:04,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 808 transitions. [2020-10-16 01:40:04,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 01:40:04,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 01:40:04,323 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 01:40:04,323 INFO L185 Difference]: Start difference. First operand has 38 places, 23 transitions, 104 flow. Second operand 5 states and 808 transitions. [2020-10-16 01:40:04,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 33 transitions, 156 flow [2020-10-16 01:40:04,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 33 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 01:40:04,325 INFO L241 Difference]: Finished difference. Result has 44 places, 30 transitions, 160 flow [2020-10-16 01:40:04,326 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=160, PETRI_PLACES=44, PETRI_TRANSITIONS=30} [2020-10-16 01:40:04,326 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, 15 predicate places. [2020-10-16 01:40:04,326 INFO L481 AbstractCegarLoop]: Abstraction has has 44 places, 30 transitions, 160 flow [2020-10-16 01:40:04,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:40:04,326 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:40:04,326 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:40:04,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 01:40:04,327 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:40:04,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:40:04,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1014494038, now seen corresponding path program 1 times [2020-10-16 01:40:04,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:40:04,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637397323] [2020-10-16 01:40:04,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:40:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:40:04,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:40:04,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637397323] [2020-10-16 01:40:04,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:40:04,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 01:40:04,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443941489] [2020-10-16 01:40:04,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 01:40:04,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:40:04,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 01:40:04,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 01:40:04,404 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 185 [2020-10-16 01:40:04,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 30 transitions, 160 flow. Second operand 5 states. [2020-10-16 01:40:04,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:40:04,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 185 [2020-10-16 01:40:04,405 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:40:04,484 INFO L129 PetriNetUnfolder]: 29/107 cut-off events. [2020-10-16 01:40:04,484 INFO L130 PetriNetUnfolder]: For 162/279 co-relation queries the response was YES. [2020-10-16 01:40:04,485 INFO L80 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 107 events. 29/107 cut-off events. For 162/279 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 474 event pairs, 2 based on Foata normal form. 39/141 useless extension candidates. Maximal degree in co-relation 376. Up to 66 conditions per place. [2020-10-16 01:40:04,486 INFO L132 encePairwiseOnDemand]: 179/185 looper letters, 5 selfloop transitions, 15 changer transitions 3/40 dead transitions. [2020-10-16 01:40:04,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 40 transitions, 264 flow [2020-10-16 01:40:04,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 01:40:04,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 01:40:04,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1131 transitions. [2020-10-16 01:40:04,491 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8733590733590734 [2020-10-16 01:40:04,491 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1131 transitions. [2020-10-16 01:40:04,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1131 transitions. [2020-10-16 01:40:04,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:40:04,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1131 transitions. [2020-10-16 01:40:04,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 01:40:04,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 01:40:04,497 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 01:40:04,497 INFO L185 Difference]: Start difference. First operand has 44 places, 30 transitions, 160 flow. Second operand 7 states and 1131 transitions. [2020-10-16 01:40:04,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 40 transitions, 264 flow [2020-10-16 01:40:04,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 40 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 01:40:04,500 INFO L241 Difference]: Finished difference. Result has 52 places, 37 transitions, 255 flow [2020-10-16 01:40:04,500 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=255, PETRI_PLACES=52, PETRI_TRANSITIONS=37} [2020-10-16 01:40:04,501 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, 23 predicate places. [2020-10-16 01:40:04,501 INFO L481 AbstractCegarLoop]: Abstraction has has 52 places, 37 transitions, 255 flow [2020-10-16 01:40:04,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 01:40:04,501 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:40:04,501 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:40:04,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 01:40:04,502 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:40:04,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:40:04,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1006414928, now seen corresponding path program 1 times [2020-10-16 01:40:04,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:40:04,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178054931] [2020-10-16 01:40:04,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:40:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:40:04,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:40:04,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178054931] [2020-10-16 01:40:04,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:40:04,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 01:40:04,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640631709] [2020-10-16 01:40:04,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 01:40:04,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:40:04,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 01:40:04,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 01:40:04,590 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 185 [2020-10-16 01:40:04,591 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 37 transitions, 255 flow. Second operand 6 states. [2020-10-16 01:40:04,591 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:40:04,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 185 [2020-10-16 01:40:04,592 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:40:04,693 INFO L129 PetriNetUnfolder]: 21/90 cut-off events. [2020-10-16 01:40:04,693 INFO L130 PetriNetUnfolder]: For 335/537 co-relation queries the response was YES. [2020-10-16 01:40:04,695 INFO L80 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 90 events. 21/90 cut-off events. For 335/537 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 375 event pairs, 0 based on Foata normal form. 51/136 useless extension candidates. Maximal degree in co-relation 396. Up to 57 conditions per place. [2020-10-16 01:40:04,696 INFO L132 encePairwiseOnDemand]: 179/185 looper letters, 2 selfloop transitions, 19 changer transitions 3/41 dead transitions. [2020-10-16 01:40:04,697 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 41 transitions, 333 flow [2020-10-16 01:40:04,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 01:40:04,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-16 01:40:04,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1448 transitions. [2020-10-16 01:40:04,730 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8696696696696696 [2020-10-16 01:40:04,730 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1448 transitions. [2020-10-16 01:40:04,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1448 transitions. [2020-10-16 01:40:04,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:40:04,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1448 transitions. [2020-10-16 01:40:04,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-16 01:40:04,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-16 01:40:04,736 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-16 01:40:04,736 INFO L185 Difference]: Start difference. First operand has 52 places, 37 transitions, 255 flow. Second operand 9 states and 1448 transitions. [2020-10-16 01:40:04,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 41 transitions, 333 flow [2020-10-16 01:40:04,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 41 transitions, 278 flow, removed 18 selfloop flow, removed 6 redundant places. [2020-10-16 01:40:04,740 INFO L241 Difference]: Finished difference. Result has 57 places, 38 transitions, 261 flow [2020-10-16 01:40:04,740 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=261, PETRI_PLACES=57, PETRI_TRANSITIONS=38} [2020-10-16 01:40:04,740 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, 28 predicate places. [2020-10-16 01:40:04,741 INFO L481 AbstractCegarLoop]: Abstraction has has 57 places, 38 transitions, 261 flow [2020-10-16 01:40:04,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 01:40:04,741 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:40:04,741 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:40:04,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 01:40:04,741 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:40:04,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:40:04,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1906467213, now seen corresponding path program 1 times [2020-10-16 01:40:04,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:40:04,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241607168] [2020-10-16 01:40:04,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:40:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:40:04,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:40:04,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241607168] [2020-10-16 01:40:04,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:40:04,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 01:40:04,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235786706] [2020-10-16 01:40:04,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:40:04,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:40:04,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:40:04,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:40:04,786 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 185 [2020-10-16 01:40:04,786 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 38 transitions, 261 flow. Second operand 4 states. [2020-10-16 01:40:04,786 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:40:04,786 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 185 [2020-10-16 01:40:04,787 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:40:04,839 INFO L129 PetriNetUnfolder]: 61/233 cut-off events. [2020-10-16 01:40:04,840 INFO L130 PetriNetUnfolder]: For 555/576 co-relation queries the response was YES. [2020-10-16 01:40:04,842 INFO L80 FinitePrefix]: Finished finitePrefix Result has 893 conditions, 233 events. 61/233 cut-off events. For 555/576 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 1548 event pairs, 4 based on Foata normal form. 6/225 useless extension candidates. Maximal degree in co-relation 869. Up to 70 conditions per place. [2020-10-16 01:40:04,843 INFO L132 encePairwiseOnDemand]: 181/185 looper letters, 7 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2020-10-16 01:40:04,843 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 43 transitions, 296 flow [2020-10-16 01:40:04,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 01:40:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 01:40:04,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 817 transitions. [2020-10-16 01:40:04,847 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8832432432432432 [2020-10-16 01:40:04,847 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 817 transitions. [2020-10-16 01:40:04,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 817 transitions. [2020-10-16 01:40:04,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:40:04,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 817 transitions. [2020-10-16 01:40:04,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 01:40:04,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 01:40:04,851 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 01:40:04,851 INFO L185 Difference]: Start difference. First operand has 57 places, 38 transitions, 261 flow. Second operand 5 states and 817 transitions. [2020-10-16 01:40:04,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 43 transitions, 296 flow [2020-10-16 01:40:04,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 43 transitions, 236 flow, removed 13 selfloop flow, removed 8 redundant places. [2020-10-16 01:40:04,859 INFO L241 Difference]: Finished difference. Result has 54 places, 40 transitions, 221 flow [2020-10-16 01:40:04,860 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2020-10-16 01:40:04,860 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, 25 predicate places. [2020-10-16 01:40:04,860 INFO L481 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 221 flow [2020-10-16 01:40:04,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:40:04,860 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:40:04,861 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:40:04,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 01:40:04,861 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:40:04,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:40:04,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1474321363, now seen corresponding path program 2 times [2020-10-16 01:40:04,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:40:04,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395745029] [2020-10-16 01:40:04,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:40:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:40:04,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:40:04,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395745029] [2020-10-16 01:40:04,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:40:04,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 01:40:04,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203328277] [2020-10-16 01:40:04,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:40:04,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:40:04,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:40:04,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:40:04,904 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 185 [2020-10-16 01:40:04,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 221 flow. Second operand 4 states. [2020-10-16 01:40:04,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:40:04,905 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 185 [2020-10-16 01:40:04,905 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:40:04,967 INFO L129 PetriNetUnfolder]: 84/311 cut-off events. [2020-10-16 01:40:04,968 INFO L130 PetriNetUnfolder]: For 363/399 co-relation queries the response was YES. [2020-10-16 01:40:04,970 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1022 conditions, 311 events. 84/311 cut-off events. For 363/399 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 2193 event pairs, 4 based on Foata normal form. 5/289 useless extension candidates. Maximal degree in co-relation 1000. Up to 100 conditions per place. [2020-10-16 01:40:04,971 INFO L132 encePairwiseOnDemand]: 181/185 looper letters, 4 selfloop transitions, 2 changer transitions 7/45 dead transitions. [2020-10-16 01:40:04,971 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 269 flow [2020-10-16 01:40:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 01:40:04,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 01:40:04,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 817 transitions. [2020-10-16 01:40:04,975 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8832432432432432 [2020-10-16 01:40:04,975 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 817 transitions. [2020-10-16 01:40:04,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 817 transitions. [2020-10-16 01:40:04,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:40:04,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 817 transitions. [2020-10-16 01:40:04,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 01:40:04,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 01:40:04,979 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 01:40:04,979 INFO L185 Difference]: Start difference. First operand has 54 places, 40 transitions, 221 flow. Second operand 5 states and 817 transitions. [2020-10-16 01:40:04,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 269 flow [2020-10-16 01:40:04,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 261 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 01:40:04,988 INFO L241 Difference]: Finished difference. Result has 58 places, 38 transitions, 217 flow [2020-10-16 01:40:04,988 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=217, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2020-10-16 01:40:04,989 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, 29 predicate places. [2020-10-16 01:40:04,989 INFO L481 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 217 flow [2020-10-16 01:40:04,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:40:04,989 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:40:04,989 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:40:04,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 01:40:04,989 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:40:04,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:40:04,990 INFO L82 PathProgramCache]: Analyzing trace with hash 113973007, now seen corresponding path program 3 times [2020-10-16 01:40:04,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:40:04,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406029822] [2020-10-16 01:40:04,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:40:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:40:05,030 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:40:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:40:05,084 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:40:05,129 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 01:40:05,129 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 01:40:05,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 01:40:05,130 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 01:40:05,146 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [881] [881] L3-->L839: Formula: (let ((.cse8 (= (mod ~y$r_buff1_thd0~0_In-2023730725 256) 0)) (.cse7 (= (mod ~y$w_buff1_used~0_In-2023730725 256) 0)) (.cse9 (= (mod ~y$r_buff0_thd0~0_In-2023730725 256) 0)) (.cse10 (= (mod ~y$w_buff0_used~0_In-2023730725 256) 0))) (let ((.cse1 (not .cse10)) (.cse2 (not .cse9)) (.cse6 (or .cse9 .cse10)) (.cse3 (or .cse8 .cse7)) (.cse4 (not .cse8)) (.cse5 (not .cse7))) (and (let ((.cse0 (select |#memory_int_In-2023730725| |~#y~0.base_In-2023730725|))) (or (and (= (store |#memory_int_In-2023730725| |~#y~0.base_In-2023730725| (store .cse0 |~#y~0.offset_In-2023730725| ~y$w_buff0~0_In-2023730725)) |#memory_int_Out-2023730725|) .cse1 .cse2) (and (or (and .cse3 (= |#memory_int_Out-2023730725| (store |#memory_int_In-2023730725| |~#y~0.base_In-2023730725| (store .cse0 |~#y~0.offset_In-2023730725| (select .cse0 |~#y~0.offset_In-2023730725|))))) (and .cse4 (= |#memory_int_Out-2023730725| (store |#memory_int_In-2023730725| |~#y~0.base_In-2023730725| (store .cse0 |~#y~0.offset_In-2023730725| ~y$w_buff1~0_In-2023730725))) .cse5)) .cse6))) (= ~y$r_buff0_thd0~0_Out-2023730725 ~y$r_buff0_thd0~0_In-2023730725) (= |ULTIMATE.start_assume_abort_if_not_#in~cond_In-2023730725| ULTIMATE.start_assume_abort_if_not_~cond_Out-2023730725) (or (and (= ~y$w_buff0_used~0_Out-2023730725 0) .cse1 .cse2) (and (= ~y$w_buff0_used~0_In-2023730725 ~y$w_buff0_used~0_Out-2023730725) .cse6)) (not (= ULTIMATE.start_assume_abort_if_not_~cond_Out-2023730725 0)) (or (and (= ~y$w_buff1_used~0_Out-2023730725 ~y$w_buff1_used~0_In-2023730725) .cse3) (and .cse4 (= ~y$w_buff1_used~0_Out-2023730725 0) .cse5)) (= ~y$r_buff1_thd0~0_In-2023730725 ~y$r_buff1_thd0~0_Out-2023730725)))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In-2023730725|, ~#y~0.offset=|~#y~0.offset_In-2023730725|, ~y$w_buff0_used~0=~y$w_buff0_used~0_In-2023730725, ~y$w_buff1~0=~y$w_buff1~0_In-2023730725, ~y$r_buff0_thd0~0=~y$r_buff0_thd0~0_In-2023730725, ~y$w_buff0~0=~y$w_buff0~0_In-2023730725, #memory_int=|#memory_int_In-2023730725|, ~#y~0.base=|~#y~0.base_In-2023730725|, ~y$r_buff1_thd0~0=~y$r_buff1_thd0~0_In-2023730725, ~y$w_buff1_used~0=~y$w_buff1_used~0_In-2023730725} OutVars{~#y~0.offset=|~#y~0.offset_In-2023730725|, ~y$w_buff0_used~0=~y$w_buff0_used~0_Out-2023730725, ~#y~0.base=|~#y~0.base_In-2023730725|, ULTIMATE.start_main_#t~ite43=|ULTIMATE.start_main_#t~ite43_Out-2023730725|, ULTIMATE.start_main_#t~ite42=|ULTIMATE.start_main_#t~ite42_Out-2023730725|, ULTIMATE.start_main_#t~ite45=|ULTIMATE.start_main_#t~ite45_Out-2023730725|, ULTIMATE.start_main_#t~ite44=|ULTIMATE.start_main_#t~ite44_Out-2023730725|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In-2023730725|, ULTIMATE.start_main_#t~ite41=|ULTIMATE.start_main_#t~ite41_Out-2023730725|, ULTIMATE.start_main_#t~ite40=|ULTIMATE.start_main_#t~ite40_Out-2023730725|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out-2023730725, ~y$w_buff1~0=~y$w_buff1~0_In-2023730725, ~y$r_buff0_thd0~0=~y$r_buff0_thd0~0_Out-2023730725, ~y$w_buff0~0=~y$w_buff0~0_In-2023730725, #memory_int=|#memory_int_Out-2023730725|, ~y$r_buff1_thd0~0=~y$r_buff1_thd0~0_Out-2023730725, ULTIMATE.start_main_#t~mem39=|ULTIMATE.start_main_#t~mem39_Out-2023730725|, ~y$w_buff1_used~0=~y$w_buff1_used~0_Out-2023730725} AuxVars[] AssignedVars[~y$w_buff0_used~0, ULTIMATE.start_main_#t~ite43, ULTIMATE.start_main_#t~ite42, ULTIMATE.start_main_#t~ite45, ULTIMATE.start_main_#t~ite44, ULTIMATE.start_main_#t~ite41, ULTIMATE.start_main_#t~ite40, ULTIMATE.start_assume_abort_if_not_~cond, ~y$r_buff0_thd0~0, #memory_int, ~y$r_buff1_thd0~0, ULTIMATE.start_main_#t~mem39, ~y$w_buff1_used~0] because there is no mapped edge [2020-10-16 01:40:05,154 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,154 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,154 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,154 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,155 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,155 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,155 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,155 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,155 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,155 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,156 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,156 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,156 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,156 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,156 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,157 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,157 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,157 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,157 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,157 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,159 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,159 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,159 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,159 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,159 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,160 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,160 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,160 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,160 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,160 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,161 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:40:05,161 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:40:05,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:40:05 BasicIcfg [2020-10-16 01:40:05,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 01:40:05,240 INFO L168 Benchmark]: Toolchain (without parser) took 12988.60 ms. Allocated memory was 250.1 MB in the beginning and 547.9 MB in the end (delta: 297.8 MB). Free memory was 205.8 MB in the beginning and 394.8 MB in the end (delta: -189.0 MB). Peak memory consumption was 108.8 MB. Max. memory is 14.2 GB. [2020-10-16 01:40:05,240 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 01:40:05,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 724.38 ms. Allocated memory was 250.1 MB in the beginning and 311.4 MB in the end (delta: 61.3 MB). Free memory was 205.8 MB in the beginning and 263.8 MB in the end (delta: -58.0 MB). Peak memory consumption was 36.1 MB. Max. memory is 14.2 GB. [2020-10-16 01:40:05,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.89 ms. Allocated memory is still 311.4 MB. Free memory was 263.8 MB in the beginning and 261.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 01:40:05,243 INFO L168 Benchmark]: Boogie Preprocessor took 40.83 ms. Allocated memory is still 311.4 MB. Free memory was 261.3 MB in the beginning and 258.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 01:40:05,243 INFO L168 Benchmark]: RCFGBuilder took 1963.00 ms. Allocated memory was 311.4 MB in the beginning and 356.0 MB in the end (delta: 44.6 MB). Free memory was 258.8 MB in the beginning and 214.3 MB in the end (delta: 44.4 MB). Peak memory consumption was 101.4 MB. Max. memory is 14.2 GB. [2020-10-16 01:40:05,244 INFO L168 Benchmark]: TraceAbstraction took 10190.04 ms. Allocated memory was 356.0 MB in the beginning and 547.9 MB in the end (delta: 191.9 MB). Free memory was 214.3 MB in the beginning and 394.8 MB in the end (delta: -180.5 MB). Peak memory consumption was 11.4 MB. Max. memory is 14.2 GB. [2020-10-16 01:40:05,254 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 724.38 ms. Allocated memory was 250.1 MB in the beginning and 311.4 MB in the end (delta: 61.3 MB). Free memory was 205.8 MB in the beginning and 263.8 MB in the end (delta: -58.0 MB). Peak memory consumption was 36.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 64.89 ms. Allocated memory is still 311.4 MB. Free memory was 263.8 MB in the beginning and 261.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 40.83 ms. Allocated memory is still 311.4 MB. Free memory was 261.3 MB in the beginning and 258.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 1963.00 ms. Allocated memory was 311.4 MB in the beginning and 356.0 MB in the end (delta: 44.6 MB). Free memory was 258.8 MB in the beginning and 214.3 MB in the end (delta: 44.4 MB). Peak memory consumption was 101.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 10190.04 ms. Allocated memory was 356.0 MB in the beginning and 547.9 MB in the end (delta: 191.9 MB). Free memory was 214.3 MB in the beginning and 394.8 MB in the end (delta: -180.5 MB). Peak memory consumption was 11.4 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 566 VarBasedMoverChecksPositive, 58 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 48 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.0s, 66 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.9s, 103 PlacesBefore, 29 PlacesAfterwards, 94 TransitionsBefore, 19 TransitionsAfterwards, 954 CoEnabledTransitionPairs, 7 FixpointIterations, 50 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 77 TotalNumberOfCompositions, 2520 MoverChecksTotal - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L699] 0 int __unbuffered_cnt = 0; [L701] 0 int __unbuffered_p0_EAX = 0; [L702] 0 _Bool __unbuffered_p0_EAX$flush_delayed; [L703] 0 int __unbuffered_p0_EAX$mem_tmp; [L704] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd0; [L705] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd1; [L706] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd2; [L707] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd3; [L708] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd0; [L709] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd1; [L710] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd2; [L711] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd3; [L712] 0 _Bool __unbuffered_p0_EAX$read_delayed; [L713] 0 int *__unbuffered_p0_EAX$read_delayed_var; [L714] 0 int __unbuffered_p0_EAX$w_buff0; [L715] 0 _Bool __unbuffered_p0_EAX$w_buff0_used; [L716] 0 int __unbuffered_p0_EAX$w_buff1; [L717] 0 _Bool __unbuffered_p0_EAX$w_buff1_used; [L719] 0 int __unbuffered_p0_EBX = 0; [L721] 0 int __unbuffered_p2_EAX = 0; [L722] 0 _Bool main$tmp_guard0; [L723] 0 _Bool main$tmp_guard1; [L725] 0 int x = 0; [L727] 0 int y = 0; [L728] 0 _Bool y$flush_delayed; [L729] 0 int y$mem_tmp; [L730] 0 _Bool y$r_buff0_thd0; [L731] 0 _Bool y$r_buff0_thd1; [L732] 0 _Bool y$r_buff0_thd2; [L733] 0 _Bool y$r_buff0_thd3; [L734] 0 _Bool y$r_buff1_thd0; [L735] 0 _Bool y$r_buff1_thd1; [L736] 0 _Bool y$r_buff1_thd2; [L737] 0 _Bool y$r_buff1_thd3; [L738] 0 _Bool y$read_delayed; [L739] 0 int *y$read_delayed_var; [L740] 0 int y$w_buff0; [L741] 0 _Bool y$w_buff0_used; [L742] 0 int y$w_buff1; [L743] 0 _Bool y$w_buff1_used; [L744] 0 _Bool weak$$choice0; [L745] 0 _Bool weak$$choice1; [L746] 0 _Bool weak$$choice2; [L823] 0 pthread_t t2109; [L824] FCALL, FORK 0 pthread_create(&t2109, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=0, __unbuffered_p0_EAX$read_delayed_var={0:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y={6:0}, 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] [L825] 0 pthread_t t2110; [L826] FCALL, FORK 0 pthread_create(&t2110, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=0, __unbuffered_p0_EAX$read_delayed_var={0:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y={6:0}, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L827] 0 pthread_t t2111; [L828] FCALL, FORK 0 pthread_create(&t2111, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=0, __unbuffered_p0_EAX$read_delayed_var={0:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y={6:0}, 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] [L750] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L751] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L752] 1 y$flush_delayed = weak$$choice2 [L753] EXPR 1 \read(y) [L753] 1 y$mem_tmp = y [L754] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L754] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1 [L754] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L754] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L755] EXPR 1 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L755] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L756] EXPR 1 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L756] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1) [L756] EXPR 1 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L756] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L757] EXPR 1 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L757] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L758] EXPR 1 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L759] EXPR 1 weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L759] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L760] EXPR 1 weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L760] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L761] 1 __unbuffered_p0_EAX$read_delayed = (_Bool)1 [L762] 1 __unbuffered_p0_EAX$read_delayed_var = &y [L763] EXPR 1 \read(y) [L763] 1 __unbuffered_p0_EAX = y [L764] EXPR 1 y$flush_delayed ? y$mem_tmp : y [L764] 1 y = y$flush_delayed ? y$mem_tmp : y [L765] 1 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice1=0, weak$$choice2=0, x=0, y={6:0}, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L768] 1 __unbuffered_p0_EBX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice1=0, weak$$choice2=0, x=0, y={6:0}, 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] [L780] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice1=0, weak$$choice2=0, x=1, y={6:0}, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L783] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice1=0, weak$$choice2=0, x=2, y={6:0}, 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] [L795] 3 __unbuffered_p2_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice1=0, weak$$choice2=0, x=2, y={6:0}, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L773] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L775] 1 return 0; [L798] 3 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice1=0, weak$$choice2=0, x=2, y={6:0}, 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] [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 [L788] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L790] 2 return 0; [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 3 return 0; [L830] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L841] 0 weak$$choice1 = __VERIFIER_nondet_bool() [L842] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L842] 0 __unbuffered_p0_EAX = __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L843] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p2_EAX == 2) [L8] COND TRUE 0 !expression [L8] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice1=1, weak$$choice2=0, x=2, y={6:0}, 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] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 9.9s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.0s, HoareTripleCheckerStatistics: 50 SDtfs, 28 SDslu, 18 SDs, 0 SdLazy, 214 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=261occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 13330 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...