/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/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 17:46:49,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 17:46:49,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 17:46:49,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 17:46:49,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 17:46:49,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 17:46:49,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 17:46:49,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 17:46:49,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 17:46:49,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 17:46:49,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 17:46:49,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 17:46:49,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 17:46:49,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 17:46:49,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 17:46:49,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 17:46:49,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 17:46:49,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 17:46:49,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 17:46:49,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 17:46:49,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 17:46:49,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 17:46:49,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 17:46:49,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 17:46:49,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 17:46:49,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 17:46:49,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 17:46:49,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 17:46:49,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 17:46:49,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 17:46:49,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 17:46:49,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 17:46:49,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 17:46:49,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 17:46:50,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 17:46:50,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 17:46:50,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 17:46:50,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 17:46:50,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 17:46:50,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 17:46:50,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 17:46:50,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-09 17:46:50,024 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 17:46:50,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 17:46:50,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 17:46:50,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 17:46:50,025 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 17:46:50,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 17:46:50,026 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 17:46:50,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 17:46:50,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 17:46:50,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 17:46:50,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 17:46:50,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 17:46:50,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 17:46:50,027 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 17:46:50,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 17:46:50,028 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 17:46:50,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 17:46:50,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 17:46:50,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 17:46:50,028 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 17:46:50,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 17:46:50,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 17:46:50,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 17:46:50,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 17:46:50,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 17:46:50,030 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-09 17:46:50,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 17:46:50,030 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-09 17:46:50,030 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-09 17:46:50,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 17:46:50,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 17:46:50,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 17:46:50,347 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 17:46:50,349 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 17:46:50,349 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 17:46:50,350 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_rmo.opt.i [2020-10-09 17:46:50,407 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1469c3e84/d425de2a308047d3b1c1b7e23132e6dc/FLAG20c45613b [2020-10-09 17:46:50,880 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 17:46:50,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_rmo.opt.i [2020-10-09 17:46:50,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1469c3e84/d425de2a308047d3b1c1b7e23132e6dc/FLAG20c45613b [2020-10-09 17:46:51,227 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1469c3e84/d425de2a308047d3b1c1b7e23132e6dc [2020-10-09 17:46:51,235 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 17:46:51,237 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 17:46:51,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 17:46:51,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 17:46:51,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 17:46:51,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 05:46:51" (1/1) ... [2020-10-09 17:46:51,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f3c8620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 05:46:51, skipping insertion in model container [2020-10-09 17:46:51,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 05:46:51" (1/1) ... [2020-10-09 17:46:51,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 17:46:51,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 17:46:51,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 17:46:51,774 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 17:46:51,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 17:46:51,974 INFO L208 MainTranslator]: Completed translation [2020-10-09 17:46:51,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 05:46:51 WrapperNode [2020-10-09 17:46:51,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 17:46:51,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 17:46:51,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 17:46:51,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 17:46:51,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 05:46:51" (1/1) ... [2020-10-09 17:46:52,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 05:46:51" (1/1) ... [2020-10-09 17:46:52,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 17:46:52,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 17:46:52,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 17:46:52,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 17:46:52,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 05:46:51" (1/1) ... [2020-10-09 17:46:52,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 05:46:51" (1/1) ... [2020-10-09 17:46:52,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 05:46:51" (1/1) ... [2020-10-09 17:46:52,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 05:46:51" (1/1) ... [2020-10-09 17:46:52,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 05:46:51" (1/1) ... [2020-10-09 17:46:52,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 05:46:51" (1/1) ... [2020-10-09 17:46:52,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 05:46:51" (1/1) ... [2020-10-09 17:46:52,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 17:46:52,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 17:46:52,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 17:46:52,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 17:46:52,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 05:46:51" (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 [2020-10-09 17:46:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 17:46:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-09 17:46:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 17:46:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 17:46:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-09 17:46:52,152 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-09 17:46:52,153 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-09 17:46:52,153 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-09 17:46:52,154 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-09 17:46:52,154 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-09 17:46:52,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-09 17:46:52,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 17:46:52,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 17:46:52,156 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 17:46:53,849 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 17:46:53,850 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-09 17:46:53,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 05:46:53 BoogieIcfgContainer [2020-10-09 17:46:53,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 17:46:53,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 17:46:53,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 17:46:53,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 17:46:53,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 05:46:51" (1/3) ... [2020-10-09 17:46:53,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d6a75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 05:46:53, skipping insertion in model container [2020-10-09 17:46:53,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 05:46:51" (2/3) ... [2020-10-09 17:46:53,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d6a75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 05:46:53, skipping insertion in model container [2020-10-09 17:46:53,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 05:46:53" (3/3) ... [2020-10-09 17:46:53,860 INFO L111 eAbstractionObserver]: Analyzing ICFG safe013_rmo.opt.i [2020-10-09 17:46:53,871 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 17:46:53,879 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-09 17:46:53,880 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 17:46:53,908 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,908 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,908 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,908 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,915 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,915 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,915 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,915 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,915 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,915 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,916 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,916 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,916 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,917 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,918 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,919 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,919 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,919 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,919 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,919 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,922 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,922 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,922 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,922 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,928 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,928 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,928 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,929 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,929 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,929 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,929 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,929 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,929 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,930 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,934 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,934 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,934 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,934 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,934 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,935 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,935 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,935 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,935 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,935 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,936 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,936 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,936 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,936 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,936 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,936 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,937 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,937 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,937 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,937 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,938 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,938 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,938 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,938 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,938 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,938 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,939 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,940 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,940 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,941 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,941 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,941 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,941 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,941 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,942 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,942 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,942 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,942 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,942 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 17:46:53,958 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-09 17:46:53,975 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 17:46:53,975 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 17:46:53,975 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 17:46:53,975 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 17:46:53,975 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 17:46:53,975 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 17:46:53,975 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 17:46:53,975 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 17:46:53,987 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 199 flow [2020-10-09 17:46:54,027 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2020-10-09 17:46:54,027 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 17:46:54,032 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-09 17:46:54,032 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 92 transitions, 199 flow [2020-10-09 17:46:54,039 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 89 transitions, 187 flow [2020-10-09 17:46:54,051 INFO L129 PetriNetUnfolder]: 0/47 cut-off events. [2020-10-09 17:46:54,051 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 17:46:54,052 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 17:46:54,053 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 17:46:54,053 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 17:46:54,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 17:46:54,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1010821823, now seen corresponding path program 1 times [2020-10-09 17:46:54,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 17:46:54,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554154340] [2020-10-09 17:46:54,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-09 17:46:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 17:46:54,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-09 17:46:54,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 17:46:54,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 17:46:54,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 17:46:54,317 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 17:46:54,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 17:46:54,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554154340] [2020-10-09 17:46:54,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 17:46:54,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-10-09 17:46:54,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725119158] [2020-10-09 17:46:54,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 17:46:54,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 17:46:54,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 17:46:54,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 17:46:54,488 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 92 [2020-10-09 17:46:54,490 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 89 transitions, 187 flow. Second operand 4 states. [2020-10-09 17:46:54,490 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 17:46:54,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 92 [2020-10-09 17:46:54,492 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 17:46:54,529 INFO L129 PetriNetUnfolder]: 0/86 cut-off events. [2020-10-09 17:46:54,529 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 17:46:54,530 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 0/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 4/88 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-09 17:46:54,531 INFO L132 encePairwiseOnDemand]: 87/92 looper letters, 0 selfloop transitions, 2 changer transitions 11/86 dead transitions. [2020-10-09 17:46:54,531 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 86 transitions, 185 flow [2020-10-09 17:46:54,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 17:46:54,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 17:46:54,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2020-10-09 17:46:54,547 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9710144927536232 [2020-10-09 17:46:54,548 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 268 transitions. [2020-10-09 17:46:54,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 268 transitions. [2020-10-09 17:46:54,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 17:46:54,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 268 transitions. [2020-10-09 17:46:54,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 17:46:54,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 17:46:54,563 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 17:46:54,565 INFO L185 Difference]: Start difference. First operand has 97 places, 89 transitions, 187 flow. Second operand 3 states and 268 transitions. [2020-10-09 17:46:54,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 86 transitions, 185 flow [2020-10-09 17:46:54,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 86 transitions, 182 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-09 17:46:54,575 INFO L241 Difference]: Finished difference. Result has 95 places, 75 transitions, 160 flow [2020-10-09 17:46:54,577 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=95, PETRI_TRANSITIONS=75} [2020-10-09 17:46:54,578 INFO L341 CegarLoopForPetriNet]: 97 programPoint places, -2 predicate places. [2020-10-09 17:46:54,578 INFO L481 AbstractCegarLoop]: Abstraction has has 95 places, 75 transitions, 160 flow [2020-10-09 17:46:54,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 17:46:54,579 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 17:46:54,579 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 17:46:54,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-09 17:46:54,790 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 17:46:54,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 17:46:54,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1541711298, now seen corresponding path program 1 times [2020-10-09 17:46:54,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 17:46:54,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077060065] [2020-10-09 17:46:54,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-09 17:46:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 17:46:54,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-09 17:46:54,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 17:46:54,928 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 17:46:54,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 17:46:54,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 17:46:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 17:46:55,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077060065] [2020-10-09 17:46:55,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 17:46:55,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2020-10-09 17:46:55,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389691944] [2020-10-09 17:46:55,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-09 17:46:55,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 17:46:55,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-09 17:46:55,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-09 17:46:55,163 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 92 [2020-10-09 17:46:55,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 75 transitions, 160 flow. Second operand 8 states. [2020-10-09 17:46:55,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 17:46:55,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 92 [2020-10-09 17:46:55,164 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 17:46:55,249 INFO L129 PetriNetUnfolder]: 3/101 cut-off events. [2020-10-09 17:46:55,250 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 17:46:55,250 INFO L80 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 101 events. 3/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 129 event pairs, 0 based on Foata normal form. 2/103 useless extension candidates. Maximal degree in co-relation 95. Up to 7 conditions per place. [2020-10-09 17:46:55,251 INFO L132 encePairwiseOnDemand]: 86/92 looper letters, 6 selfloop transitions, 2 changer transitions 10/85 dead transitions. [2020-10-09 17:46:55,251 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 85 transitions, 216 flow [2020-10-09 17:46:55,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-09 17:46:55,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-09 17:46:55,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 758 transitions. [2020-10-09 17:46:55,258 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9154589371980676 [2020-10-09 17:46:55,258 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 758 transitions. [2020-10-09 17:46:55,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 758 transitions. [2020-10-09 17:46:55,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 17:46:55,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 758 transitions. [2020-10-09 17:46:55,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-09 17:46:55,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-09 17:46:55,267 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-09 17:46:55,267 INFO L185 Difference]: Start difference. First operand has 95 places, 75 transitions, 160 flow. Second operand 9 states and 758 transitions. [2020-10-09 17:46:55,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 85 transitions, 216 flow [2020-10-09 17:46:55,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 85 transitions, 212 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-09 17:46:55,271 INFO L241 Difference]: Finished difference. Result has 97 places, 75 transitions, 176 flow [2020-10-09 17:46:55,271 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=176, PETRI_PLACES=97, PETRI_TRANSITIONS=75} [2020-10-09 17:46:55,272 INFO L341 CegarLoopForPetriNet]: 97 programPoint places, 0 predicate places. [2020-10-09 17:46:55,272 INFO L481 AbstractCegarLoop]: Abstraction has has 97 places, 75 transitions, 176 flow [2020-10-09 17:46:55,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-09 17:46:55,272 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 17:46:55,272 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 17:46:55,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-09 17:46:55,484 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 17:46:55,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 17:46:55,484 INFO L82 PathProgramCache]: Analyzing trace with hash 732830467, now seen corresponding path program 1 times [2020-10-09 17:46:55,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 17:46:55,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191279617] [2020-10-09 17:46:55,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-09 17:46:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 17:46:55,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-09 17:46:55,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 17:46:55,577 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 17:46:55,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 17:46:55,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 17:46:55,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 17:46:55,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191279617] [2020-10-09 17:46:55,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 17:46:55,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2020-10-09 17:46:55,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319408223] [2020-10-09 17:46:55,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-09 17:46:55,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 17:46:55,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-09 17:46:55,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-09 17:46:55,882 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 92 [2020-10-09 17:46:55,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 75 transitions, 176 flow. Second operand 8 states. [2020-10-09 17:46:55,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 17:46:55,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 92 [2020-10-09 17:46:55,883 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 17:46:56,085 INFO L129 PetriNetUnfolder]: 18/178 cut-off events. [2020-10-09 17:46:56,086 INFO L130 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2020-10-09 17:46:56,087 INFO L80 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 178 events. 18/178 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 603 event pairs, 0 based on Foata normal form. 5/181 useless extension candidates. Maximal degree in co-relation 269. Up to 15 conditions per place. [2020-10-09 17:46:56,088 INFO L132 encePairwiseOnDemand]: 85/92 looper letters, 10 selfloop transitions, 5 changer transitions 23/104 dead transitions. [2020-10-09 17:46:56,089 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 104 transitions, 350 flow [2020-10-09 17:46:56,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-09 17:46:56,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-09 17:46:56,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1094 transitions. [2020-10-09 17:46:56,093 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9147157190635451 [2020-10-09 17:46:56,093 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1094 transitions. [2020-10-09 17:46:56,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1094 transitions. [2020-10-09 17:46:56,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 17:46:56,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1094 transitions. [2020-10-09 17:46:56,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-09 17:46:56,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-10-09 17:46:56,099 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-10-09 17:46:56,099 INFO L185 Difference]: Start difference. First operand has 97 places, 75 transitions, 176 flow. Second operand 13 states and 1094 transitions. [2020-10-09 17:46:56,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 104 transitions, 350 flow [2020-10-09 17:46:56,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 104 transitions, 298 flow, removed 24 selfloop flow, removed 8 redundant places. [2020-10-09 17:46:56,105 INFO L241 Difference]: Finished difference. Result has 106 places, 77 transitions, 202 flow [2020-10-09 17:46:56,105 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=202, PETRI_PLACES=106, PETRI_TRANSITIONS=77} [2020-10-09 17:46:56,105 INFO L341 CegarLoopForPetriNet]: 97 programPoint places, 9 predicate places. [2020-10-09 17:46:56,106 INFO L481 AbstractCegarLoop]: Abstraction has has 106 places, 77 transitions, 202 flow [2020-10-09 17:46:56,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-09 17:46:56,106 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 17:46:56,106 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 17:46:56,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-09 17:46:56,318 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 17:46:56,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 17:46:56,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1221787068, now seen corresponding path program 1 times [2020-10-09 17:46:56,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 17:46:56,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499021807] [2020-10-09 17:46:56,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-09 17:46:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 17:46:56,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-09 17:46:56,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 17:46:56,436 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 17:46:56,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 17:46:56,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 17:46:56,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 17:46:56,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499021807] [2020-10-09 17:46:56,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 17:46:56,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2020-10-09 17:46:56,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781558037] [2020-10-09 17:46:56,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-09 17:46:56,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 17:46:56,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-09 17:46:56,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-09 17:46:56,702 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 92 [2020-10-09 17:46:56,703 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 77 transitions, 202 flow. Second operand 9 states. [2020-10-09 17:46:56,703 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 17:46:56,703 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 92 [2020-10-09 17:46:56,703 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 17:46:56,830 INFO L129 PetriNetUnfolder]: 8/151 cut-off events. [2020-10-09 17:46:56,830 INFO L130 PetriNetUnfolder]: For 109/133 co-relation queries the response was YES. [2020-10-09 17:46:56,831 INFO L80 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 151 events. 8/151 cut-off events. For 109/133 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 497 event pairs, 0 based on Foata normal form. 4/153 useless extension candidates. Maximal degree in co-relation 264. Up to 12 conditions per place. [2020-10-09 17:46:56,832 INFO L132 encePairwiseOnDemand]: 84/92 looper letters, 6 selfloop transitions, 4 changer transitions 12/89 dead transitions. [2020-10-09 17:46:56,832 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 89 transitions, 307 flow [2020-10-09 17:46:56,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-09 17:46:56,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-09 17:46:56,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 824 transitions. [2020-10-09 17:46:56,835 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8956521739130435 [2020-10-09 17:46:56,835 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 824 transitions. [2020-10-09 17:46:56,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 824 transitions. [2020-10-09 17:46:56,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 17:46:56,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 824 transitions. [2020-10-09 17:46:56,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-09 17:46:56,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-09 17:46:56,840 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-09 17:46:56,840 INFO L185 Difference]: Start difference. First operand has 106 places, 77 transitions, 202 flow. Second operand 10 states and 824 transitions. [2020-10-09 17:46:56,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 89 transitions, 307 flow [2020-10-09 17:46:56,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 89 transitions, 265 flow, removed 21 selfloop flow, removed 9 redundant places. [2020-10-09 17:46:56,844 INFO L241 Difference]: Finished difference. Result has 105 places, 77 transitions, 214 flow [2020-10-09 17:46:56,845 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=214, PETRI_PLACES=105, PETRI_TRANSITIONS=77} [2020-10-09 17:46:56,845 INFO L341 CegarLoopForPetriNet]: 97 programPoint places, 8 predicate places. [2020-10-09 17:46:56,845 INFO L481 AbstractCegarLoop]: Abstraction has has 105 places, 77 transitions, 214 flow [2020-10-09 17:46:56,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-09 17:46:56,845 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 17:46:56,845 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 17:46:57,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-09 17:46:57,058 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 17:46:57,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 17:46:57,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1806045867, now seen corresponding path program 1 times [2020-10-09 17:46:57,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 17:46:57,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961844364] [2020-10-09 17:46:57,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-09 17:46:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 17:46:57,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-09 17:46:57,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 17:46:57,166 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 17:46:57,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 17:46:57,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 17:46:57,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 17:46:57,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961844364] [2020-10-09 17:46:57,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 17:46:57,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2020-10-09 17:46:57,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542684836] [2020-10-09 17:46:57,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-09 17:46:57,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 17:46:57,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-09 17:46:57,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-09 17:46:57,402 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 92 [2020-10-09 17:46:57,403 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 77 transitions, 214 flow. Second operand 8 states. [2020-10-09 17:46:57,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 17:46:57,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 92 [2020-10-09 17:46:57,403 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 17:46:57,614 INFO L129 PetriNetUnfolder]: 124/422 cut-off events. [2020-10-09 17:46:57,614 INFO L130 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2020-10-09 17:46:57,617 INFO L80 FinitePrefix]: Finished finitePrefix Result has 751 conditions, 422 events. 124/422 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2337 event pairs, 0 based on Foata normal form. 14/417 useless extension candidates. Maximal degree in co-relation 716. Up to 72 conditions per place. [2020-10-09 17:46:57,618 INFO L132 encePairwiseOnDemand]: 83/92 looper letters, 10 selfloop transitions, 9 changer transitions 29/115 dead transitions. [2020-10-09 17:46:57,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 115 transitions, 386 flow [2020-10-09 17:46:57,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-09 17:46:57,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-09 17:46:57,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 999 transitions. [2020-10-09 17:46:57,622 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.904891304347826 [2020-10-09 17:46:57,622 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 999 transitions. [2020-10-09 17:46:57,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 999 transitions. [2020-10-09 17:46:57,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 17:46:57,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 999 transitions. [2020-10-09 17:46:57,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-09 17:46:57,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-09 17:46:57,627 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-09 17:46:57,627 INFO L185 Difference]: Start difference. First operand has 105 places, 77 transitions, 214 flow. Second operand 12 states and 999 transitions. [2020-10-09 17:46:57,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 115 transitions, 386 flow [2020-10-09 17:46:57,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 115 transitions, 355 flow, removed 9 selfloop flow, removed 11 redundant places. [2020-10-09 17:46:57,632 INFO L241 Difference]: Finished difference. Result has 108 places, 83 transitions, 281 flow [2020-10-09 17:46:57,633 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=281, PETRI_PLACES=108, PETRI_TRANSITIONS=83} [2020-10-09 17:46:57,633 INFO L341 CegarLoopForPetriNet]: 97 programPoint places, 11 predicate places. [2020-10-09 17:46:57,633 INFO L481 AbstractCegarLoop]: Abstraction has has 108 places, 83 transitions, 281 flow [2020-10-09 17:46:57,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-09 17:46:57,633 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 17:46:57,633 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 17:46:57,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-09 17:46:57,855 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 17:46:57,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 17:46:57,856 INFO L82 PathProgramCache]: Analyzing trace with hash -290882477, now seen corresponding path program 1 times [2020-10-09 17:46:57,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 17:46:57,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026114406] [2020-10-09 17:46:57,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-09 17:46:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 17:46:57,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-09 17:46:57,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 17:46:58,002 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 17:46:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 17:46:58,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 17:46:58,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 17:46:58,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026114406] [2020-10-09 17:46:58,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 17:46:58,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 10 [2020-10-09 17:46:58,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327025172] [2020-10-09 17:46:58,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-09 17:46:58,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 17:46:58,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-09 17:46:58,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-09 17:46:58,196 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 92 [2020-10-09 17:46:58,197 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 83 transitions, 281 flow. Second operand 10 states. [2020-10-09 17:46:58,197 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 17:46:58,197 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 92 [2020-10-09 17:46:58,198 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 17:46:58,347 INFO L129 PetriNetUnfolder]: 32/183 cut-off events. [2020-10-09 17:46:58,347 INFO L130 PetriNetUnfolder]: For 706/743 co-relation queries the response was YES. [2020-10-09 17:46:58,348 INFO L80 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 183 events. 32/183 cut-off events. For 706/743 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 597 event pairs, 0 based on Foata normal form. 26/207 useless extension candidates. Maximal degree in co-relation 567. Up to 53 conditions per place. [2020-10-09 17:46:58,349 INFO L132 encePairwiseOnDemand]: 83/92 looper letters, 4 selfloop transitions, 12 changer transitions 15/96 dead transitions. [2020-10-09 17:46:58,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 96 transitions, 464 flow [2020-10-09 17:46:58,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-09 17:46:58,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-09 17:46:58,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 900 transitions. [2020-10-09 17:46:58,353 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8893280632411067 [2020-10-09 17:46:58,353 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 900 transitions. [2020-10-09 17:46:58,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 900 transitions. [2020-10-09 17:46:58,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 17:46:58,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 900 transitions. [2020-10-09 17:46:58,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-09 17:46:58,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-09 17:46:58,358 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-09 17:46:58,358 INFO L185 Difference]: Start difference. First operand has 108 places, 83 transitions, 281 flow. Second operand 11 states and 900 transitions. [2020-10-09 17:46:58,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 96 transitions, 464 flow [2020-10-09 17:46:58,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 96 transitions, 374 flow, removed 39 selfloop flow, removed 8 redundant places. [2020-10-09 17:46:58,363 INFO L241 Difference]: Finished difference. Result has 110 places, 81 transitions, 278 flow [2020-10-09 17:46:58,364 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=278, PETRI_PLACES=110, PETRI_TRANSITIONS=81} [2020-10-09 17:46:58,364 INFO L341 CegarLoopForPetriNet]: 97 programPoint places, 13 predicate places. [2020-10-09 17:46:58,364 INFO L481 AbstractCegarLoop]: Abstraction has has 110 places, 81 transitions, 278 flow [2020-10-09 17:46:58,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-09 17:46:58,365 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 17:46:58,365 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 17:46:58,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-09 17:46:58,585 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 17:46:58,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 17:46:58,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1412465844, now seen corresponding path program 1 times [2020-10-09 17:46:58,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 17:46:58,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812930857] [2020-10-09 17:46:58,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-09 17:46:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 17:46:58,757 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 17:46:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 17:46:58,805 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 17:46:58,919 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 17:46:58,919 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 17:46:59,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-09 17:46:59,180 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,180 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,181 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,181 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,182 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,182 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,182 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,182 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,182 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,183 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,183 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,183 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,183 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,183 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,184 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,184 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,184 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,184 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,184 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,184 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,185 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,185 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,185 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,185 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,185 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,186 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,186 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,186 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,186 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,186 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,187 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,187 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,187 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,187 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,187 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,188 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,188 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,188 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,188 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,188 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,189 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,189 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,189 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,189 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,189 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,189 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,190 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,190 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,191 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,191 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,191 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,191 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,192 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,192 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,192 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,192 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,192 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,192 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,193 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 17:46:59,193 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 17:46:59,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 05:46:59 BasicIcfg [2020-10-09 17:46:59,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 17:46:59,314 INFO L168 Benchmark]: Toolchain (without parser) took 8076.43 ms. Allocated memory was 253.8 MB in the beginning and 488.6 MB in the end (delta: 234.9 MB). Free memory was 208.9 MB in the beginning and 417.9 MB in the end (delta: -209.0 MB). Peak memory consumption was 212.9 MB. Max. memory is 14.2 GB. [2020-10-09 17:46:59,314 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 253.8 MB. Free memory was 231.8 MB in the beginning and 231.0 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-09 17:46:59,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.39 ms. Allocated memory was 253.8 MB in the beginning and 320.9 MB in the end (delta: 67.1 MB). Free memory was 208.9 MB in the beginning and 271.7 MB in the end (delta: -62.8 MB). Peak memory consumption was 28.0 MB. Max. memory is 14.2 GB. [2020-10-09 17:46:59,316 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.92 ms. Allocated memory is still 320.9 MB. Free memory was 271.7 MB in the beginning and 269.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 17:46:59,317 INFO L168 Benchmark]: Boogie Preprocessor took 46.36 ms. Allocated memory is still 320.9 MB. Free memory was 269.2 MB in the beginning and 266.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.2 GB. [2020-10-09 17:46:59,318 INFO L168 Benchmark]: RCFGBuilder took 1770.95 ms. Allocated memory was 320.9 MB in the beginning and 361.2 MB in the end (delta: 40.4 MB). Free memory was 266.6 MB in the beginning and 214.4 MB in the end (delta: 52.2 MB). Peak memory consumption was 99.7 MB. Max. memory is 14.2 GB. [2020-10-09 17:46:59,318 INFO L168 Benchmark]: TraceAbstraction took 5457.90 ms. Allocated memory was 361.2 MB in the beginning and 488.6 MB in the end (delta: 127.4 MB). Free memory was 214.4 MB in the beginning and 417.9 MB in the end (delta: -203.5 MB). Peak memory consumption was 110.9 MB. Max. memory is 14.2 GB. [2020-10-09 17:46:59,323 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 253.8 MB. Free memory was 231.8 MB in the beginning and 231.0 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 737.39 ms. Allocated memory was 253.8 MB in the beginning and 320.9 MB in the end (delta: 67.1 MB). Free memory was 208.9 MB in the beginning and 271.7 MB in the end (delta: -62.8 MB). Peak memory consumption was 28.0 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 58.92 ms. Allocated memory is still 320.9 MB. Free memory was 271.7 MB in the beginning and 269.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 46.36 ms. Allocated memory is still 320.9 MB. Free memory was 269.2 MB in the beginning and 266.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.2 GB. * RCFGBuilder took 1770.95 ms. Allocated memory was 320.9 MB in the beginning and 361.2 MB in the end (delta: 40.4 MB). Free memory was 266.6 MB in the beginning and 214.4 MB in the end (delta: 52.2 MB). Peak memory consumption was 99.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 5457.90 ms. Allocated memory was 361.2 MB in the beginning and 488.6 MB in the end (delta: 127.4 MB). Free memory was 214.4 MB in the beginning and 417.9 MB in the end (delta: -203.5 MB). Peak memory consumption was 110.9 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L699] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L701] 0 int __unbuffered_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L703] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0] [L704] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0] [L705] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L707] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L708] 0 _Bool x$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0] [L709] 0 int x$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0] [L710] 0 _Bool x$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0] [L711] 0 _Bool x$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0] [L712] 0 _Bool x$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0] [L713] 0 _Bool x$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=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_buff0_thd3=0] [L714] 0 _Bool x$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0] [L715] 0 _Bool x$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0] [L716] 0 _Bool x$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=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_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0] [L717] 0 _Bool x$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=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_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0] [L718] 0 _Bool x$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0] [L719] 0 int *x$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}] [L720] 0 int x$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=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_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0] [L721] 0 _Bool x$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=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_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0] [L722] 0 int x$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0] [L723] 0 _Bool x$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0] [L725] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L727] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$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, z=0] [L728] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=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_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=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, z=0] [L729] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L820] 0 pthread_t t2088; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L821] FCALL, FORK 0 pthread_create(&t2088, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L822] 0 pthread_t t2089; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L823] FCALL, FORK 0 pthread_create(&t2089, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L824] 0 pthread_t t2090; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L825] FCALL, FORK 0 pthread_create(&t2090, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L763] 2 x$w_buff1 = x$w_buff0 [L764] 2 x$w_buff0 = 1 [L765] 2 x$w_buff1_used = x$w_buff0_used [L766] 2 x$w_buff0_used = (_Bool)1 [L8] COND FALSE 2 !(!expression) [L768] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L769] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L770] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L771] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L772] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L775] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L792] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L795] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L733] 1 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L738] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L739] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L740] 1 x$flush_delayed = weak$$choice2 [L741] 1 x$mem_tmp = x [L742] EXPR 1 !x$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) [L742] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1 [L742] 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$w_buff1) [L742] 1 x = !x$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) [L743] EXPR 1 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L743] 1 x$w_buff0 = weak$$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)) [L744] EXPR 1 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L744] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1) [L744] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1 [L744] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1) [L744] EXPR 1 weak$$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$w_buff1)) [L744] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L745] EXPR 1 weak$$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)) [L745] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L746] EXPR 1 weak$$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$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L746] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L747] EXPR 1 weak$$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)) [L747] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L748] EXPR 1 weak$$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$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L748] EXPR 1 !x$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) [L748] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L748] 1 x$r_buff1_thd1 = weak$$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$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L749] 1 __unbuffered_p0_EAX = x [L750] EXPR 1 x$flush_delayed ? x$mem_tmp : x [L750] 1 x = x$flush_delayed ? x$mem_tmp : x [L751] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=255, 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_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=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, z=2] [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=255, 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_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=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, z=2] [L778] 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) [L778] 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) [L779] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L779] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L780] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L780] 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 [L781] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L781] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L782] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L782] 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 [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=255, 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_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=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=1, z=2] [L798] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L798] EXPR 3 x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x [L798] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L798] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L799] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L799] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L800] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L800] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L801] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L801] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L802] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L802] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L805] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=255, 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_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=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=1, z=2] [L827] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=255, 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_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=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=1, z=2] [L4] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=255, 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_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=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=1, z=2] [L831] 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) [L831] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L831] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L831] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L832] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L832] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L833] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L833] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L834] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L834] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L835] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L835] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L838] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 1) VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=255, 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_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=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=1, z=2] [L8] COND TRUE 0 !expression VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=255, 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_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=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=1, z=2] [L8] 0 __VERIFIER_error() VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=255, 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_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=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=1, z=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 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: 5.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 202 SDslu, 321 SDs, 0 SdLazy, 344 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 701 GetRequests, 622 SyntacticMatches, 9 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=5, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 408 NumberOfCodeBlocks, 408 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 666 ConstructedInterpolants, 0 QuantifiedInterpolants, 100195 SizeOfPredicates, 31 NumberOfNonLiveVariables, 913 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...