/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-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread-wmm/rfi003_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 04:57:46,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 04:57:46,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 04:57:46,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 04:57:46,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 04:57:46,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 04:57:46,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 04:57:46,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 04:57:46,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 04:57:46,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 04:57:46,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 04:57:46,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 04:57:46,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 04:57:46,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 04:57:46,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 04:57:46,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 04:57:46,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 04:57:46,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 04:57:46,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 04:57:46,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 04:57:46,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 04:57:46,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 04:57:46,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 04:57:46,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 04:57:46,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 04:57:46,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 04:57:46,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 04:57:46,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 04:57:46,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 04:57:46,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 04:57:46,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 04:57:46,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 04:57:46,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 04:57:46,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 04:57:46,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 04:57:46,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 04:57:46,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 04:57:46,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 04:57:46,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 04:57:46,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 04:57:46,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 04:57:46,847 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-SemanticLooper.epf [2020-10-16 04:57:46,886 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 04:57:46,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 04:57:46,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 04:57:46,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 04:57:46,888 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 04:57:46,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 04:57:46,888 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 04:57:46,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 04:57:46,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 04:57:46,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 04:57:46,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 04:57:46,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 04:57:46,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 04:57:46,889 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 04:57:46,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 04:57:46,890 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 04:57:46,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 04:57:46,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 04:57:46,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 04:57:46,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 04:57:46,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 04:57:46,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 04:57:46,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 04:57:46,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 04:57:46,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 04:57:46,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 04:57:46,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 04:57:46,892 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 04:57:46,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 04:57:47,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 04:57:47,183 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 04:57:47,187 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 04:57:47,188 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 04:57:47,188 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 04:57:47,189 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi003_pso.oepc.i [2020-10-16 04:57:47,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed514e28d/77b320adb85340d785cf7b8abe8b45ff/FLAG6fd4a2f50 [2020-10-16 04:57:47,789 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 04:57:47,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_pso.oepc.i [2020-10-16 04:57:47,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed514e28d/77b320adb85340d785cf7b8abe8b45ff/FLAG6fd4a2f50 [2020-10-16 04:57:48,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed514e28d/77b320adb85340d785cf7b8abe8b45ff [2020-10-16 04:57:48,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 04:57:48,125 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 04:57:48,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 04:57:48,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 04:57:48,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 04:57:48,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:57:48" (1/1) ... [2020-10-16 04:57:48,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ba6a79e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:57:48, skipping insertion in model container [2020-10-16 04:57:48,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:57:48" (1/1) ... [2020-10-16 04:57:48,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 04:57:48,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 04:57:48,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 04:57:48,670 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 04:57:48,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 04:57:48,829 INFO L208 MainTranslator]: Completed translation [2020-10-16 04:57:48,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:57:48 WrapperNode [2020-10-16 04:57:48,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 04:57:48,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 04:57:48,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 04:57:48,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 04:57:48,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:57:48" (1/1) ... [2020-10-16 04:57:48,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:57:48" (1/1) ... [2020-10-16 04:57:48,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 04:57:48,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 04:57:48,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 04:57:48,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 04:57:48,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:57:48" (1/1) ... [2020-10-16 04:57:48,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:57:48" (1/1) ... [2020-10-16 04:57:48,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:57:48" (1/1) ... [2020-10-16 04:57:48,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:57:48" (1/1) ... [2020-10-16 04:57:48,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:57:48" (1/1) ... [2020-10-16 04:57:48,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:57:48" (1/1) ... [2020-10-16 04:57:48,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:57:48" (1/1) ... [2020-10-16 04:57:48,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 04:57:48,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 04:57:48,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 04:57:48,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 04:57:48,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:57:48" (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 04:57:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 04:57:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 04:57:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 04:57:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 04:57:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 04:57:49,011 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 04:57:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 04:57:49,011 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 04:57:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 04:57:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 04:57:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 04:57:49,015 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 04:57:50,732 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 04:57:50,732 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 04:57:50,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:57:50 BoogieIcfgContainer [2020-10-16 04:57:50,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 04:57:50,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 04:57:50,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 04:57:50,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 04:57:50,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 04:57:48" (1/3) ... [2020-10-16 04:57:50,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4f36f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:57:50, skipping insertion in model container [2020-10-16 04:57:50,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:57:48" (2/3) ... [2020-10-16 04:57:50,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4f36f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:57:50, skipping insertion in model container [2020-10-16 04:57:50,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:57:50" (3/3) ... [2020-10-16 04:57:50,746 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi003_pso.oepc.i [2020-10-16 04:57:50,760 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 04:57:50,770 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 04:57:50,772 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 04:57:50,817 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,818 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,818 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,824 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,824 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,824 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,824 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,824 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,824 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,825 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,825 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,826 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,826 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,828 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,831 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,831 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,832 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,832 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,832 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,832 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,833 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,834 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,834 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,834 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,834 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,834 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,835 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,835 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,844 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,844 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,844 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,845 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,845 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,845 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,845 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,845 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,846 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,846 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,846 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,846 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,847 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,847 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,847 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,847 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,856 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,856 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,856 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,856 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,857 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,857 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,857 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,857 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,858 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,858 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,859 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,859 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:57:50,877 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 04:57:50,900 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 04:57:50,900 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 04:57:50,900 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 04:57:50,901 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 04:57:50,901 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 04:57:50,904 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 04:57:50,904 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 04:57:50,905 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 04:57:50,922 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 78 transitions, 166 flow [2020-10-16 04:57:50,967 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-16 04:57:50,967 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 04:57:50,972 INFO L80 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-16 04:57:50,972 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 78 transitions, 166 flow [2020-10-16 04:57:50,978 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 76 transitions, 158 flow [2020-10-16 04:57:50,981 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 04:57:50,983 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 76 transitions, 158 flow [2020-10-16 04:57:50,986 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 76 transitions, 158 flow [2020-10-16 04:57:50,987 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 76 transitions, 158 flow [2020-10-16 04:57:51,007 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-16 04:57:51,007 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 04:57:51,008 INFO L80 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-16 04:57:51,010 INFO L117 LiptonReduction]: Number of co-enabled transitions 936 [2020-10-16 04:57:51,264 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-16 04:57:51,265 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:57:51,281 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 04:57:51,281 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:51,284 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:51,284 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:51,288 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 04:57:51,288 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:51,291 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-16 04:57:51,292 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:51,296 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:51,296 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:51,299 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:51,299 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:51,360 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:51,361 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-10-16 04:57:51,365 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 2, 5, 3, 5, 3, 3, 2, 1] term [2020-10-16 04:57:51,366 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:51,747 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-16 04:57:51,866 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-16 04:57:51,940 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:51,940 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-10-16 04:57:51,944 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 2, 5, 3, 5, 3, 3, 2, 1] term [2020-10-16 04:57:51,945 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:51,986 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:57:51,986 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:57:51,996 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 04:57:51,996 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:51,999 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:51,999 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:52,001 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,001 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:52,003 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-16 04:57:52,004 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:52,006 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,007 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:52,008 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,008 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:52,082 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-16 04:57:52,083 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:52,084 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 4, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,084 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:52,085 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 4, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,086 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:52,362 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:57:52,362 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:57:52,367 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,367 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:52,369 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,369 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:52,371 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,371 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:52,373 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-16 04:57:52,373 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:52,375 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,376 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:52,377 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,377 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:52,417 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,418 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-10-16 04:57:52,420 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 2, 5, 3, 5, 3, 3, 2, 1] term [2020-10-16 04:57:52,421 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:52,631 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-16 04:57:52,631 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:52,632 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 4, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,632 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:52,633 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 4, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,633 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:52,812 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,812 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-16 04:57:52,815 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 5, 3, 5, 3, 3, 2, 1] term [2020-10-16 04:57:52,816 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:57:52,861 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:57:52,861 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:57:52,864 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,865 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:52,867 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,867 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:52,869 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,869 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:52,872 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-16 04:57:52,872 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:52,876 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,876 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:52,878 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:52,879 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:53,313 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-16 04:57:53,464 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-16 04:57:53,716 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:53,716 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-16 04:57:53,718 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 5, 3, 5, 3, 3, 2, 1] term [2020-10-16 04:57:53,719 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:57:53,743 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:57:53,743 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:57:53,753 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 04:57:53,753 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:53,755 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:53,755 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:53,756 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 04:57:53,757 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:53,759 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-16 04:57:53,759 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:53,761 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:53,761 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:53,762 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:53,762 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:53,840 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:57:53,841 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:57:53,847 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 04:57:53,848 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:53,849 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:53,849 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:53,850 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 04:57:53,850 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 04:57:53,852 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-16 04:57:53,853 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:53,854 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:53,854 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:53,855 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 2, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:53,856 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:57:53,889 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 04:57:53,890 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-16 04:57:53,891 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 5, 3, 5, 3, 3, 2, 1] term [2020-10-16 04:57:53,892 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:57:54,472 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-16 04:57:54,568 INFO L132 LiptonReduction]: Checked pairs total: 2379 [2020-10-16 04:57:54,569 INFO L134 LiptonReduction]: Total number of compositions: 66 [2020-10-16 04:57:54,571 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3592 [2020-10-16 04:57:54,579 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2020-10-16 04:57:54,579 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 04:57:54,579 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:57:54,580 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 04:57:54,581 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:57:54,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:57:54,587 INFO L82 PathProgramCache]: Analyzing trace with hash 781438270, now seen corresponding path program 1 times [2020-10-16 04:57:54,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:57:54,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338201926] [2020-10-16 04:57:54,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:57:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:57:54,835 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 04:57:54,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338201926] [2020-10-16 04:57:54,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:57:54,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 04:57:54,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022172139] [2020-10-16 04:57:54,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 04:57:54,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:57:54,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 04:57:54,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 04:57:54,869 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 144 [2020-10-16 04:57:54,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 46 flow. Second operand 3 states. [2020-10-16 04:57:54,871 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:57:54,872 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 144 [2020-10-16 04:57:54,873 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:57:54,924 INFO L129 PetriNetUnfolder]: 9/47 cut-off events. [2020-10-16 04:57:54,924 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 04:57:54,925 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 47 events. 9/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 130 event pairs, 1 based on Foata normal form. 6/51 useless extension candidates. Maximal degree in co-relation 67. Up to 17 conditions per place. [2020-10-16 04:57:54,926 INFO L132 encePairwiseOnDemand]: 140/144 looper letters, 5 selfloop transitions, 2 changer transitions 0/20 dead transitions. [2020-10-16 04:57:54,927 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 60 flow [2020-10-16 04:57:54,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 04:57:54,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 04:57:54,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2020-10-16 04:57:54,945 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8703703703703703 [2020-10-16 04:57:54,946 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 376 transitions. [2020-10-16 04:57:54,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 376 transitions. [2020-10-16 04:57:54,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:57:54,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 376 transitions. [2020-10-16 04:57:54,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 04:57:54,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 04:57:54,964 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 04:57:54,966 INFO L185 Difference]: Start difference. First operand has 26 places, 20 transitions, 46 flow. Second operand 3 states and 376 transitions. [2020-10-16 04:57:54,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 60 flow [2020-10-16 04:57:54,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 20 transitions, 58 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 04:57:54,972 INFO L241 Difference]: Finished difference. Result has 25 places, 18 transitions, 44 flow [2020-10-16 04:57:54,975 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=25, PETRI_TRANSITIONS=18} [2020-10-16 04:57:54,976 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, -1 predicate places. [2020-10-16 04:57:54,976 INFO L481 AbstractCegarLoop]: Abstraction has has 25 places, 18 transitions, 44 flow [2020-10-16 04:57:54,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 04:57:54,976 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:57:54,977 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:57:54,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 04:57:54,977 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:57:54,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:57:54,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1105080138, now seen corresponding path program 1 times [2020-10-16 04:57:54,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:57:54,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471863082] [2020-10-16 04:57:54,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:57:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:57:55,084 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 04:57:55,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471863082] [2020-10-16 04:57:55,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:57:55,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 04:57:55,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122625742] [2020-10-16 04:57:55,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 04:57:55,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:57:55,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 04:57:55,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 04:57:55,092 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 144 [2020-10-16 04:57:55,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 44 flow. Second operand 4 states. [2020-10-16 04:57:55,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:57:55,093 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 144 [2020-10-16 04:57:55,093 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:57:55,183 INFO L129 PetriNetUnfolder]: 40/113 cut-off events. [2020-10-16 04:57:55,185 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 04:57:55,187 INFO L80 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 113 events. 40/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 427 event pairs, 15 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 198. Up to 56 conditions per place. [2020-10-16 04:57:55,187 INFO L132 encePairwiseOnDemand]: 139/144 looper letters, 6 selfloop transitions, 3 changer transitions 10/29 dead transitions. [2020-10-16 04:57:55,188 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 104 flow [2020-10-16 04:57:55,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 04:57:55,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 04:57:55,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 591 transitions. [2020-10-16 04:57:55,193 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8208333333333333 [2020-10-16 04:57:55,194 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 591 transitions. [2020-10-16 04:57:55,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 591 transitions. [2020-10-16 04:57:55,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:57:55,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 591 transitions. [2020-10-16 04:57:55,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 04:57:55,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 04:57:55,206 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 04:57:55,206 INFO L185 Difference]: Start difference. First operand has 25 places, 18 transitions, 44 flow. Second operand 5 states and 591 transitions. [2020-10-16 04:57:55,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 104 flow [2020-10-16 04:57:55,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 100 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 04:57:55,208 INFO L241 Difference]: Finished difference. Result has 30 places, 19 transitions, 65 flow [2020-10-16 04:57:55,208 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=65, PETRI_PLACES=30, PETRI_TRANSITIONS=19} [2020-10-16 04:57:55,209 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2020-10-16 04:57:55,209 INFO L481 AbstractCegarLoop]: Abstraction has has 30 places, 19 transitions, 65 flow [2020-10-16 04:57:55,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 04:57:55,210 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:57:55,210 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:57:55,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 04:57:55,210 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:57:55,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:57:55,210 INFO L82 PathProgramCache]: Analyzing trace with hash -102291329, now seen corresponding path program 1 times [2020-10-16 04:57:55,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:57:55,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884316010] [2020-10-16 04:57:55,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:57:55,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:57:55,336 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 04:57:55,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884316010] [2020-10-16 04:57:55,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:57:55,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 04:57:55,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123373802] [2020-10-16 04:57:55,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 04:57:55,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:57:55,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 04:57:55,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 04:57:55,343 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 144 [2020-10-16 04:57:55,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 19 transitions, 65 flow. Second operand 4 states. [2020-10-16 04:57:55,344 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:57:55,344 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 144 [2020-10-16 04:57:55,344 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:57:55,391 INFO L129 PetriNetUnfolder]: 5/39 cut-off events. [2020-10-16 04:57:55,391 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2020-10-16 04:57:55,391 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 39 events. 5/39 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 1 based on Foata normal form. 5/44 useless extension candidates. Maximal degree in co-relation 75. Up to 14 conditions per place. [2020-10-16 04:57:55,392 INFO L132 encePairwiseOnDemand]: 140/144 looper letters, 2 selfloop transitions, 2 changer transitions 2/21 dead transitions. [2020-10-16 04:57:55,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 21 transitions, 83 flow [2020-10-16 04:57:55,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 04:57:55,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 04:57:55,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 588 transitions. [2020-10-16 04:57:55,395 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8166666666666667 [2020-10-16 04:57:55,395 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 588 transitions. [2020-10-16 04:57:55,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 588 transitions. [2020-10-16 04:57:55,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:57:55,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 588 transitions. [2020-10-16 04:57:55,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 04:57:55,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 04:57:55,400 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 04:57:55,400 INFO L185 Difference]: Start difference. First operand has 30 places, 19 transitions, 65 flow. Second operand 5 states and 588 transitions. [2020-10-16 04:57:55,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 21 transitions, 83 flow [2020-10-16 04:57:55,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 21 transitions, 76 flow, removed 2 selfloop flow, removed 2 redundant places. [2020-10-16 04:57:55,402 INFO L241 Difference]: Finished difference. Result has 32 places, 19 transitions, 70 flow [2020-10-16 04:57:55,402 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=25, 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=5, PETRI_FLOW=70, PETRI_PLACES=32, PETRI_TRANSITIONS=19} [2020-10-16 04:57:55,402 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2020-10-16 04:57:55,402 INFO L481 AbstractCegarLoop]: Abstraction has has 32 places, 19 transitions, 70 flow [2020-10-16 04:57:55,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 04:57:55,403 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:57:55,403 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:57:55,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 04:57:55,403 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:57:55,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:57:55,403 INFO L82 PathProgramCache]: Analyzing trace with hash -2119152181, now seen corresponding path program 1 times [2020-10-16 04:57:55,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:57:55,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765809904] [2020-10-16 04:57:55,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:57:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:57:55,499 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 04:57:55,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765809904] [2020-10-16 04:57:55,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:57:55,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 04:57:55,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130461341] [2020-10-16 04:57:55,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 04:57:55,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:57:55,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 04:57:55,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 04:57:55,502 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 144 [2020-10-16 04:57:55,503 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 19 transitions, 70 flow. Second operand 4 states. [2020-10-16 04:57:55,503 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:57:55,503 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 144 [2020-10-16 04:57:55,503 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:57:55,543 INFO L129 PetriNetUnfolder]: 2/38 cut-off events. [2020-10-16 04:57:55,543 INFO L130 PetriNetUnfolder]: For 27/29 co-relation queries the response was YES. [2020-10-16 04:57:55,544 INFO L80 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 38 events. 2/38 cut-off events. For 27/29 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 91 event pairs, 0 based on Foata normal form. 3/41 useless extension candidates. Maximal degree in co-relation 83. Up to 11 conditions per place. [2020-10-16 04:57:55,544 INFO L132 encePairwiseOnDemand]: 140/144 looper letters, 7 selfloop transitions, 2 changer transitions 4/23 dead transitions. [2020-10-16 04:57:55,544 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 23 transitions, 115 flow [2020-10-16 04:57:55,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 04:57:55,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 04:57:55,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 584 transitions. [2020-10-16 04:57:55,547 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8111111111111111 [2020-10-16 04:57:55,547 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 584 transitions. [2020-10-16 04:57:55,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 584 transitions. [2020-10-16 04:57:55,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:57:55,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 584 transitions. [2020-10-16 04:57:55,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 04:57:55,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 04:57:55,551 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 04:57:55,551 INFO L185 Difference]: Start difference. First operand has 32 places, 19 transitions, 70 flow. Second operand 5 states and 584 transitions. [2020-10-16 04:57:55,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 23 transitions, 115 flow [2020-10-16 04:57:55,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 23 transitions, 101 flow, removed 4 selfloop flow, removed 4 redundant places. [2020-10-16 04:57:55,554 INFO L241 Difference]: Finished difference. Result has 33 places, 17 transitions, 64 flow [2020-10-16 04:57:55,554 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=60, 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=5, PETRI_FLOW=64, PETRI_PLACES=33, PETRI_TRANSITIONS=17} [2020-10-16 04:57:55,554 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2020-10-16 04:57:55,555 INFO L481 AbstractCegarLoop]: Abstraction has has 33 places, 17 transitions, 64 flow [2020-10-16 04:57:55,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 04:57:55,555 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:57:55,555 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:57:55,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 04:57:55,555 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:57:55,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:57:55,556 INFO L82 PathProgramCache]: Analyzing trace with hash 339803506, now seen corresponding path program 1 times [2020-10-16 04:57:55,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:57:55,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981508084] [2020-10-16 04:57:55,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:57:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:57:55,633 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 04:57:55,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981508084] [2020-10-16 04:57:55,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:57:55,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 04:57:55,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105807065] [2020-10-16 04:57:55,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 04:57:55,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:57:55,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 04:57:55,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 04:57:55,639 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 144 [2020-10-16 04:57:55,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 17 transitions, 64 flow. Second operand 4 states. [2020-10-16 04:57:55,642 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:57:55,642 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 144 [2020-10-16 04:57:55,642 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:57:55,675 INFO L129 PetriNetUnfolder]: 6/36 cut-off events. [2020-10-16 04:57:55,676 INFO L130 PetriNetUnfolder]: For 22/23 co-relation queries the response was YES. [2020-10-16 04:57:55,676 INFO L80 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 36 events. 6/36 cut-off events. For 22/23 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 72 event pairs, 0 based on Foata normal form. 4/38 useless extension candidates. Maximal degree in co-relation 79. Up to 11 conditions per place. [2020-10-16 04:57:55,677 INFO L132 encePairwiseOnDemand]: 139/144 looper letters, 5 selfloop transitions, 4 changer transitions 1/22 dead transitions. [2020-10-16 04:57:55,677 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 22 transitions, 94 flow [2020-10-16 04:57:55,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 04:57:55,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 04:57:55,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 468 transitions. [2020-10-16 04:57:55,680 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8125 [2020-10-16 04:57:55,680 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 468 transitions. [2020-10-16 04:57:55,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 468 transitions. [2020-10-16 04:57:55,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:57:55,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 468 transitions. [2020-10-16 04:57:55,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 04:57:55,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 04:57:55,683 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 04:57:55,683 INFO L185 Difference]: Start difference. First operand has 33 places, 17 transitions, 64 flow. Second operand 4 states and 468 transitions. [2020-10-16 04:57:55,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 22 transitions, 94 flow [2020-10-16 04:57:55,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 22 transitions, 80 flow, removed 4 selfloop flow, removed 6 redundant places. [2020-10-16 04:57:55,685 INFO L241 Difference]: Finished difference. Result has 30 places, 19 transitions, 76 flow [2020-10-16 04:57:55,685 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=76, PETRI_PLACES=30, PETRI_TRANSITIONS=19} [2020-10-16 04:57:55,686 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2020-10-16 04:57:55,686 INFO L481 AbstractCegarLoop]: Abstraction has has 30 places, 19 transitions, 76 flow [2020-10-16 04:57:55,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 04:57:55,686 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:57:55,686 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:57:55,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 04:57:55,686 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:57:55,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:57:55,687 INFO L82 PathProgramCache]: Analyzing trace with hash -106184119, now seen corresponding path program 1 times [2020-10-16 04:57:55,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:57:55,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677717639] [2020-10-16 04:57:55,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:57:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:57:55,822 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 04:57:55,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677717639] [2020-10-16 04:57:55,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:57:55,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 04:57:55,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845984520] [2020-10-16 04:57:55,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 04:57:55,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:57:55,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 04:57:55,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 04:57:55,826 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 144 [2020-10-16 04:57:55,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 19 transitions, 76 flow. Second operand 5 states. [2020-10-16 04:57:55,855 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:57:55,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 144 [2020-10-16 04:57:55,855 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:57:55,914 INFO L129 PetriNetUnfolder]: 7/50 cut-off events. [2020-10-16 04:57:55,914 INFO L130 PetriNetUnfolder]: For 33/37 co-relation queries the response was YES. [2020-10-16 04:57:55,914 INFO L80 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 50 events. 7/50 cut-off events. For 33/37 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 157 event pairs, 2 based on Foata normal form. 4/54 useless extension candidates. Maximal degree in co-relation 127. Up to 21 conditions per place. [2020-10-16 04:57:55,915 INFO L132 encePairwiseOnDemand]: 140/144 looper letters, 7 selfloop transitions, 1 changer transitions 3/23 dead transitions. [2020-10-16 04:57:55,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 23 transitions, 114 flow [2020-10-16 04:57:55,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 04:57:55,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 04:57:55,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 552 transitions. [2020-10-16 04:57:55,918 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7666666666666667 [2020-10-16 04:57:55,918 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 552 transitions. [2020-10-16 04:57:55,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 552 transitions. [2020-10-16 04:57:55,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:57:55,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 552 transitions. [2020-10-16 04:57:55,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 04:57:55,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 04:57:55,921 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 04:57:55,921 INFO L185 Difference]: Start difference. First operand has 30 places, 19 transitions, 76 flow. Second operand 5 states and 552 transitions. [2020-10-16 04:57:55,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 23 transitions, 114 flow [2020-10-16 04:57:55,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 23 transitions, 99 flow, removed 3 selfloop flow, removed 4 redundant places. [2020-10-16 04:57:55,923 INFO L241 Difference]: Finished difference. Result has 33 places, 19 transitions, 72 flow [2020-10-16 04:57:55,924 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=72, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2020-10-16 04:57:55,924 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2020-10-16 04:57:55,924 INFO L481 AbstractCegarLoop]: Abstraction has has 33 places, 19 transitions, 72 flow [2020-10-16 04:57:55,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 04:57:55,924 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:57:55,924 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:57:55,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 04:57:55,925 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:57:55,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:57:55,925 INFO L82 PathProgramCache]: Analyzing trace with hash -596400601, now seen corresponding path program 2 times [2020-10-16 04:57:55,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:57:55,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913865853] [2020-10-16 04:57:55,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:57:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:57:55,991 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 04:57:55,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913865853] [2020-10-16 04:57:55,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:57:55,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 04:57:55,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580245453] [2020-10-16 04:57:55,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 04:57:55,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:57:55,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 04:57:55,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 04:57:55,994 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 144 [2020-10-16 04:57:55,994 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 19 transitions, 72 flow. Second operand 5 states. [2020-10-16 04:57:55,994 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:57:55,995 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 144 [2020-10-16 04:57:55,995 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:57:56,032 INFO L129 PetriNetUnfolder]: 2/27 cut-off events. [2020-10-16 04:57:56,032 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2020-10-16 04:57:56,033 INFO L80 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 27 events. 2/27 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 0 based on Foata normal form. 4/31 useless extension candidates. Maximal degree in co-relation 63. Up to 9 conditions per place. [2020-10-16 04:57:56,033 INFO L132 encePairwiseOnDemand]: 139/144 looper letters, 1 selfloop transitions, 6 changer transitions 1/20 dead transitions. [2020-10-16 04:57:56,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 20 transitions, 90 flow [2020-10-16 04:57:56,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 04:57:56,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 04:57:56,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 580 transitions. [2020-10-16 04:57:56,036 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8055555555555556 [2020-10-16 04:57:56,036 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 580 transitions. [2020-10-16 04:57:56,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 580 transitions. [2020-10-16 04:57:56,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:57:56,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 580 transitions. [2020-10-16 04:57:56,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 04:57:56,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 04:57:56,040 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 04:57:56,040 INFO L185 Difference]: Start difference. First operand has 33 places, 19 transitions, 72 flow. Second operand 5 states and 580 transitions. [2020-10-16 04:57:56,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 20 transitions, 90 flow [2020-10-16 04:57:56,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 20 transitions, 77 flow, removed 4 selfloop flow, removed 5 redundant places. [2020-10-16 04:57:56,042 INFO L241 Difference]: Finished difference. Result has 32 places, 19 transitions, 82 flow [2020-10-16 04:57:56,042 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=82, PETRI_PLACES=32, PETRI_TRANSITIONS=19} [2020-10-16 04:57:56,042 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2020-10-16 04:57:56,043 INFO L481 AbstractCegarLoop]: Abstraction has has 32 places, 19 transitions, 82 flow [2020-10-16 04:57:56,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 04:57:56,043 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:57:56,043 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 04:57:56,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 04:57:56,043 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:57:56,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:57:56,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1471502815, now seen corresponding path program 1 times [2020-10-16 04:57:56,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:57:56,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538207144] [2020-10-16 04:57:56,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:57:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:57:56,121 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 04:57:56,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538207144] [2020-10-16 04:57:56,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:57:56,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 04:57:56,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650940783] [2020-10-16 04:57:56,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 04:57:56,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:57:56,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 04:57:56,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 04:57:56,124 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 144 [2020-10-16 04:57:56,125 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 19 transitions, 82 flow. Second operand 5 states. [2020-10-16 04:57:56,125 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:57:56,125 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 144 [2020-10-16 04:57:56,125 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:57:56,163 INFO L129 PetriNetUnfolder]: 2/33 cut-off events. [2020-10-16 04:57:56,164 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2020-10-16 04:57:56,164 INFO L80 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 33 events. 2/33 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 0 based on Foata normal form. 1/34 useless extension candidates. Maximal degree in co-relation 84. Up to 12 conditions per place. [2020-10-16 04:57:56,164 INFO L132 encePairwiseOnDemand]: 140/144 looper letters, 6 selfloop transitions, 1 changer transitions 2/21 dead transitions. [2020-10-16 04:57:56,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 21 transitions, 104 flow [2020-10-16 04:57:56,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 04:57:56,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 04:57:56,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 550 transitions. [2020-10-16 04:57:56,167 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7638888888888888 [2020-10-16 04:57:56,167 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 550 transitions. [2020-10-16 04:57:56,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 550 transitions. [2020-10-16 04:57:56,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:57:56,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 550 transitions. [2020-10-16 04:57:56,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 04:57:56,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 04:57:56,171 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 04:57:56,171 INFO L185 Difference]: Start difference. First operand has 32 places, 19 transitions, 82 flow. Second operand 5 states and 550 transitions. [2020-10-16 04:57:56,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 21 transitions, 104 flow [2020-10-16 04:57:56,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 21 transitions, 76 flow, removed 5 selfloop flow, removed 6 redundant places. [2020-10-16 04:57:56,173 INFO L241 Difference]: Finished difference. Result has 33 places, 19 transitions, 63 flow [2020-10-16 04:57:56,174 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=63, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2020-10-16 04:57:56,174 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2020-10-16 04:57:56,174 INFO L481 AbstractCegarLoop]: Abstraction has has 33 places, 19 transitions, 63 flow [2020-10-16 04:57:56,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 04:57:56,174 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:57:56,174 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 04:57:56,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 04:57:56,175 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:57:56,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:57:56,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1949187931, now seen corresponding path program 2 times [2020-10-16 04:57:56,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:57:56,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849702688] [2020-10-16 04:57:56,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:57:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 04:57:56,213 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 04:57:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 04:57:56,242 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 04:57:56,274 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 04:57:56,274 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 04:57:56,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 04:57:56,291 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 04:57:56,291 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,292 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 04:57:56,293 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,293 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 04:57:56,293 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,293 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 04:57:56,293 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,294 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 04:57:56,294 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,294 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 04:57:56,294 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,294 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 04:57:56,294 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,295 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 04:57:56,295 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,295 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 04:57:56,295 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,295 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 04:57:56,296 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,296 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 04:57:56,296 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,297 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 04:57:56,297 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,297 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 04:57:56,297 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,297 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 04:57:56,297 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,298 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 04:57:56,298 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,298 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 04:57:56,298 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,299 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 04:57:56,299 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,299 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 04:57:56,299 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,299 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 04:57:56,300 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,300 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 04:57:56,300 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:57:56,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 04:57:56 BasicIcfg [2020-10-16 04:57:56,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 04:57:56,387 INFO L168 Benchmark]: Toolchain (without parser) took 8261.96 ms. Allocated memory was 253.2 MB in the beginning and 492.3 MB in the end (delta: 239.1 MB). Free memory was 205.2 MB in the beginning and 366.1 MB in the end (delta: -160.9 MB). Peak memory consumption was 78.2 MB. Max. memory is 14.2 GB. [2020-10-16 04:57:56,388 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 253.2 MB. Free memory is still 227.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 04:57:56,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.27 ms. Allocated memory was 253.2 MB in the beginning and 320.9 MB in the end (delta: 67.6 MB). Free memory was 205.2 MB in the beginning and 269.1 MB in the end (delta: -63.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 14.2 GB. [2020-10-16 04:57:56,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.70 ms. Allocated memory is still 320.9 MB. Free memory was 269.1 MB in the beginning and 266.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 04:57:56,394 INFO L168 Benchmark]: Boogie Preprocessor took 44.91 ms. Allocated memory is still 320.9 MB. Free memory was 266.6 MB in the beginning and 264.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 04:57:56,395 INFO L168 Benchmark]: RCFGBuilder took 1798.51 ms. Allocated memory was 320.9 MB in the beginning and 360.2 MB in the end (delta: 39.3 MB). Free memory was 264.1 MB in the beginning and 243.2 MB in the end (delta: 20.9 MB). Peak memory consumption was 97.1 MB. Max. memory is 14.2 GB. [2020-10-16 04:57:56,396 INFO L168 Benchmark]: TraceAbstraction took 5648.30 ms. Allocated memory was 360.2 MB in the beginning and 492.3 MB in the end (delta: 132.1 MB). Free memory was 243.2 MB in the beginning and 366.1 MB in the end (delta: -122.9 MB). Peak memory consumption was 9.2 MB. Max. memory is 14.2 GB. [2020-10-16 04:57:56,404 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 253.2 MB. Free memory is still 227.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 703.27 ms. Allocated memory was 253.2 MB in the beginning and 320.9 MB in the end (delta: 67.6 MB). Free memory was 205.2 MB in the beginning and 269.1 MB in the end (delta: -63.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 60.70 ms. Allocated memory is still 320.9 MB. Free memory was 269.1 MB in the beginning and 266.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 44.91 ms. Allocated memory is still 320.9 MB. Free memory was 266.6 MB in the beginning and 264.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 1798.51 ms. Allocated memory was 320.9 MB in the beginning and 360.2 MB in the end (delta: 39.3 MB). Free memory was 264.1 MB in the beginning and 243.2 MB in the end (delta: 20.9 MB). Peak memory consumption was 97.1 MB. Max. memory is 14.2 GB. * TraceAbstraction took 5648.30 ms. Allocated memory was 360.2 MB in the beginning and 492.3 MB in the end (delta: 132.1 MB). Free memory was 243.2 MB in the beginning and 366.1 MB in the end (delta: -122.9 MB). Peak memory consumption was 9.2 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 597 VarBasedMoverChecksPositive, 54 VarBasedMoverChecksNegative, 14 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.2s, 87 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.5s, 81 PlacesBefore, 26 PlacesAfterwards, 76 TransitionsBefore, 20 TransitionsAfterwards, 936 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 66 TotalNumberOfCompositions, 2379 MoverChecksTotal - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L698] 0 int __unbuffered_cnt = 0; [L700] 0 int __unbuffered_p0_EAX = 0; [L702] 0 int __unbuffered_p1_EAX = 0; [L704] 0 int __unbuffered_p1_EBX = 0; [L705] 0 _Bool main$tmp_guard0; [L706] 0 _Bool main$tmp_guard1; [L708] 0 int x = 0; [L709] 0 _Bool x$flush_delayed; [L710] 0 int x$mem_tmp; [L711] 0 _Bool x$r_buff0_thd0; [L712] 0 _Bool x$r_buff0_thd1; [L713] 0 _Bool x$r_buff0_thd2; [L714] 0 _Bool x$r_buff1_thd0; [L715] 0 _Bool x$r_buff1_thd1; [L716] 0 _Bool x$r_buff1_thd2; [L717] 0 _Bool x$read_delayed; [L718] 0 int *x$read_delayed_var; [L719] 0 int x$w_buff0; [L720] 0 _Bool x$w_buff0_used; [L721] 0 int x$w_buff1; [L722] 0 _Bool x$w_buff1_used; [L724] 0 int y = 0; [L725] 0 _Bool weak$$choice0; [L726] 0 _Bool weak$$choice2; [L802] 0 pthread_t t1637; [L803] FCALL, FORK 0 pthread_create(&t1637, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L804] 0 pthread_t t1638; [L805] FCALL, FORK 0 pthread_create(&t1638, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L760] 2 x$w_buff1 = x$w_buff0 [L761] 2 x$w_buff0 = 1 [L762] 2 x$w_buff1_used = x$w_buff0_used [L763] 2 x$w_buff0_used = (_Bool)1 [L8] COND TRUE 2 !expression [L8] 2 __VERIFIER_error() [L765] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L766] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L767] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L768] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L771] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L774] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L777] 2 __unbuffered_p1_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L730] 1 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L735] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L736] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L737] 1 x$flush_delayed = weak$$choice2 [L738] 1 x$mem_tmp = x [L739] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L739] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L740] EXPR 1 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L740] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L741] EXPR 1 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L741] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L742] EXPR 1 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L742] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L743] EXPR 1 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L743] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L744] EXPR 1 weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L744] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L745] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L745] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L745] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L745] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L746] 1 __unbuffered_p0_EAX = x [L747] EXPR 1 x$flush_delayed ? x$mem_tmp : x [L747] 1 x = x$flush_delayed ? x$mem_tmp : x [L748] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L755] 1 return 0; [L780] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L780] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L781] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L781] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L782] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L782] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L783] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L783] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L784] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L784] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L787] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L789] 2 return 0; [L807] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L4] COND FALSE 0 !(!cond) [L811] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L811] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L812] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L812] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L813] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L813] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L814] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L814] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L815] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L815] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L818] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 1) [L8] COND TRUE 0 !expression [L8] 0 __VERIFIER_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 77 locations, 2 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: 5.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 41 SDtfs, 26 SDslu, 39 SDs, 0 SdLazy, 93 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=7, 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, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 2812 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...