/usr/bin/java -Xmx8000000000 -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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/rfi003_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:29:42,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:29:42,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:29:42,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:29:42,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:29:42,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:29:42,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:29:42,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:29:42,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:29:42,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:29:42,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:29:42,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:29:42,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:29:42,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:29:42,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:29:42,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:29:42,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:29:42,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:29:42,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:29:42,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:29:42,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:29:42,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:29:42,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:29:42,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:29:42,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:29:42,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:29:42,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:29:42,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:29:42,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:29:42,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:29:42,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:29:42,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:29:42,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:29:42,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:29:42,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:29:42,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:29:42,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:29:42,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:29:42,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:29:42,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:29:42,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:29:42,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:29:42,110 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:29:42,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:29:42,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:29:42,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:29:42,112 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:29:42,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:29:42,113 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:29:42,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:29:42,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:29:42,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:29:42,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:29:42,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:29:42,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:29:42,114 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:29:42,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:29:42,114 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:29:42,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:29:42,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:29:42,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:29:42,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:29:42,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:29:42,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:29:42,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:29:42,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:29:42,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:29:42,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:29:42,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:29:42,117 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:29:42,117 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:29:42,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:29:42,117 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:29:42,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:29:42,437 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:29:42,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:29:42,442 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:29:42,442 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:29:42,443 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi003_rmo.oepc.i [2020-10-16 13:29:42,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c79c8fdc/2a872ab0976f468eaecd0ffe09564e14/FLAGa8db2bf80 [2020-10-16 13:29:43,060 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:29:43,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/rfi003_rmo.oepc.i [2020-10-16 13:29:43,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c79c8fdc/2a872ab0976f468eaecd0ffe09564e14/FLAGa8db2bf80 [2020-10-16 13:29:43,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c79c8fdc/2a872ab0976f468eaecd0ffe09564e14 [2020-10-16 13:29:43,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:29:43,349 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:29:43,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:29:43,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:29:43,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:29:43,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:29:43" (1/1) ... [2020-10-16 13:29:43,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@106f3b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:43, skipping insertion in model container [2020-10-16 13:29:43,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:29:43" (1/1) ... [2020-10-16 13:29:43,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:29:43,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:29:43,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:29:43,916 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:29:44,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:29:44,146 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:29:44,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:44 WrapperNode [2020-10-16 13:29:44,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:29:44,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:29:44,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:29:44,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:29:44,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:44" (1/1) ... [2020-10-16 13:29:44,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:44" (1/1) ... [2020-10-16 13:29:44,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:29:44,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:29:44,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:29:44,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:29:44,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:44" (1/1) ... [2020-10-16 13:29:44,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:44" (1/1) ... [2020-10-16 13:29:44,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:44" (1/1) ... [2020-10-16 13:29:44,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:44" (1/1) ... [2020-10-16 13:29:44,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:44" (1/1) ... [2020-10-16 13:29:44,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:44" (1/1) ... [2020-10-16 13:29:44,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:44" (1/1) ... [2020-10-16 13:29:44,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:29:44,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:29:44,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:29:44,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:29:44,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:29:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:29:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:29:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:29:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:29:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:29:44,402 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:29:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:29:44,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:29:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:29:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:29:44,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:29:44,406 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:29:46,069 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:29:46,070 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 13:29:46,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:29:46 BoogieIcfgContainer [2020-10-16 13:29:46,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:29:46,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:29:46,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:29:46,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:29:46,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:29:43" (1/3) ... [2020-10-16 13:29:46,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a70e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:29:46, skipping insertion in model container [2020-10-16 13:29:46,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:44" (2/3) ... [2020-10-16 13:29:46,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a70e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:29:46, skipping insertion in model container [2020-10-16 13:29:46,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:29:46" (3/3) ... [2020-10-16 13:29:46,081 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi003_rmo.oepc.i [2020-10-16 13:29:46,094 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:29:46,094 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:29:46,102 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 13:29:46,103 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:29:46,133 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,134 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,134 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,136 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,136 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,136 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,136 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,137 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,137 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,137 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,137 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,143 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,145 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,145 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,146 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,146 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,146 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,146 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,147 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,147 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,147 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,147 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,149 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,149 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,149 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,150 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,150 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,154 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,155 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,157 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,157 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,157 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,157 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,158 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,158 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,158 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,158 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,158 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,159 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,159 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,159 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,159 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,165 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,165 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,165 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,166 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:29:46,169 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:29:46,184 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 13:29:46,206 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:29:46,206 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:29:46,206 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:29:46,207 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:29:46,207 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:29:46,207 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:29:46,207 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:29:46,207 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:29:46,257 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:29:46,258 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 78 transitions, 166 flow [2020-10-16 13:29:46,260 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 78 transitions, 166 flow [2020-10-16 13:29:46,262 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 78 transitions, 166 flow [2020-10-16 13:29:46,303 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-16 13:29:46,303 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:29:46,308 INFO L80 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-16 13:29:46,311 INFO L117 LiptonReduction]: Number of co-enabled transitions 936 [2020-10-16 13:29:46,854 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-16 13:29:47,679 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-16 13:29:48,423 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-16 13:29:48,522 INFO L132 LiptonReduction]: Checked pairs total: 2602 [2020-10-16 13:29:48,522 INFO L134 LiptonReduction]: Total number of compositions: 64 [2020-10-16 13:29:48,528 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 23 transitions, 56 flow [2020-10-16 13:29:48,549 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-10-16 13:29:48,552 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-10-16 13:29:48,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 13:29:48,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:29:48,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 13:29:48,559 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:29:48,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:29:48,565 INFO L82 PathProgramCache]: Analyzing trace with hash 779590268, now seen corresponding path program 1 times [2020-10-16 13:29:48,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:29:48,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914630490] [2020-10-16 13:29:48,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:29:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:29:48,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:29:48,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914630490] [2020-10-16 13:29:48,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:29:48,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:29:48,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1305434343] [2020-10-16 13:29:48,796 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:29:48,799 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:29:48,811 INFO L258 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-16 13:29:48,812 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:29:48,815 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:29:48,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:29:48,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:29:48,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:29:48,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:29:48,828 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-10-16 13:29:48,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:29:48,887 INFO L93 Difference]: Finished difference Result 206 states and 499 transitions. [2020-10-16 13:29:48,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:29:48,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-16 13:29:48,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:29:48,902 INFO L225 Difference]: With dead ends: 206 [2020-10-16 13:29:48,902 INFO L226 Difference]: Without dead ends: 150 [2020-10-16 13:29:48,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:29:48,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-16 13:29:48,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-10-16 13:29:48,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-16 13:29:48,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 353 transitions. [2020-10-16 13:29:48,958 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 353 transitions. Word has length 5 [2020-10-16 13:29:48,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:29:48,959 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 353 transitions. [2020-10-16 13:29:48,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:29:48,959 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 353 transitions. [2020-10-16 13:29:48,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:29:48,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:29:48,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:29:48,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:29:48,961 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:29:48,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:29:48,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1885763432, now seen corresponding path program 1 times [2020-10-16 13:29:48,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:29:48,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042748300] [2020-10-16 13:29:48,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:29:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:29:49,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:29:49,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042748300] [2020-10-16 13:29:49,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:29:49,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:29:49,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1854407394] [2020-10-16 13:29:49,104 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:29:49,105 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:29:49,109 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:29:49,109 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:29:49,109 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:29:49,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:29:49,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:29:49,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:29:49,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:29:49,114 INFO L87 Difference]: Start difference. First operand 150 states and 353 transitions. Second operand 4 states. [2020-10-16 13:29:49,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:29:49,154 INFO L93 Difference]: Finished difference Result 154 states and 344 transitions. [2020-10-16 13:29:49,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:29:49,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-16 13:29:49,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:29:49,160 INFO L225 Difference]: With dead ends: 154 [2020-10-16 13:29:49,160 INFO L226 Difference]: Without dead ends: 126 [2020-10-16 13:29:49,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:29:49,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-16 13:29:49,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-10-16 13:29:49,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-16 13:29:49,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 287 transitions. [2020-10-16 13:29:49,186 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 287 transitions. Word has length 8 [2020-10-16 13:29:49,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:29:49,186 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 287 transitions. [2020-10-16 13:29:49,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:29:49,187 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 287 transitions. [2020-10-16 13:29:49,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:29:49,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:29:49,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:29:49,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:29:49,191 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:29:49,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:29:49,191 INFO L82 PathProgramCache]: Analyzing trace with hash 677008671, now seen corresponding path program 1 times [2020-10-16 13:29:49,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:29:49,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73351070] [2020-10-16 13:29:49,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:29:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:29:49,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:29:49,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73351070] [2020-10-16 13:29:49,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:29:49,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:29:49,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [406926430] [2020-10-16 13:29:49,352 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:29:49,353 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:29:49,355 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-10-16 13:29:49,355 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:29:49,356 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:29:49,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:29:49,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:29:49,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:29:49,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:29:49,357 INFO L87 Difference]: Start difference. First operand 126 states and 287 transitions. Second operand 4 states. [2020-10-16 13:29:49,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:29:49,396 INFO L93 Difference]: Finished difference Result 191 states and 418 transitions. [2020-10-16 13:29:49,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:29:49,399 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 13:29:49,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:29:49,400 INFO L225 Difference]: With dead ends: 191 [2020-10-16 13:29:49,400 INFO L226 Difference]: Without dead ends: 94 [2020-10-16 13:29:49,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:29:49,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-16 13:29:49,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2020-10-16 13:29:49,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-16 13:29:49,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 205 transitions. [2020-10-16 13:29:49,413 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 205 transitions. Word has length 11 [2020-10-16 13:29:49,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:29:49,414 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 205 transitions. [2020-10-16 13:29:49,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:29:49,414 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 205 transitions. [2020-10-16 13:29:49,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:29:49,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:29:49,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:29:49,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:29:49,416 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:29:49,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:29:49,417 INFO L82 PathProgramCache]: Analyzing trace with hash -486781298, now seen corresponding path program 1 times [2020-10-16 13:29:49,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:29:49,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082733126] [2020-10-16 13:29:49,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:29:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:29:49,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:29:49,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082733126] [2020-10-16 13:29:49,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:29:49,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:29:49,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [260280515] [2020-10-16 13:29:49,528 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:29:49,529 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:29:49,532 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 23 transitions. [2020-10-16 13:29:49,532 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:29:49,532 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:29:49,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:29:49,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:29:49,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:29:49,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:29:49,534 INFO L87 Difference]: Start difference. First operand 94 states and 205 transitions. Second operand 5 states. [2020-10-16 13:29:49,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:29:49,579 INFO L93 Difference]: Finished difference Result 142 states and 309 transitions. [2020-10-16 13:29:49,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:29:49,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 13:29:49,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:29:49,580 INFO L225 Difference]: With dead ends: 142 [2020-10-16 13:29:49,581 INFO L226 Difference]: Without dead ends: 85 [2020-10-16 13:29:49,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:29:49,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-16 13:29:49,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-16 13:29:49,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-16 13:29:49,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 181 transitions. [2020-10-16 13:29:49,588 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 181 transitions. Word has length 12 [2020-10-16 13:29:49,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:29:49,588 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 181 transitions. [2020-10-16 13:29:49,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:29:49,588 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 181 transitions. [2020-10-16 13:29:49,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:29:49,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:29:49,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:29:49,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:29:49,590 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:29:49,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:29:49,590 INFO L82 PathProgramCache]: Analyzing trace with hash -487502048, now seen corresponding path program 2 times [2020-10-16 13:29:49,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:29:49,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283602769] [2020-10-16 13:29:49,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:29:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:29:49,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:29:49,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283602769] [2020-10-16 13:29:49,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:29:49,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:29:49,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1404518924] [2020-10-16 13:29:49,686 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:29:49,687 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:29:49,690 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 23 transitions. [2020-10-16 13:29:49,690 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:29:49,690 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:29:49,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:29:49,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:29:49,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:29:49,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:29:49,692 INFO L87 Difference]: Start difference. First operand 85 states and 181 transitions. Second operand 5 states. [2020-10-16 13:29:49,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:29:49,754 INFO L93 Difference]: Finished difference Result 91 states and 185 transitions. [2020-10-16 13:29:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:29:49,755 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 13:29:49,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:29:49,756 INFO L225 Difference]: With dead ends: 91 [2020-10-16 13:29:49,756 INFO L226 Difference]: Without dead ends: 79 [2020-10-16 13:29:49,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:29:49,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-16 13:29:49,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-10-16 13:29:49,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-16 13:29:49,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 165 transitions. [2020-10-16 13:29:49,765 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 165 transitions. Word has length 12 [2020-10-16 13:29:49,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:29:49,766 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 165 transitions. [2020-10-16 13:29:49,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:29:49,766 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 165 transitions. [2020-10-16 13:29:49,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:29:49,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:29:49,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:29:49,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:29:49,768 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:29:49,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:29:49,768 INFO L82 PathProgramCache]: Analyzing trace with hash 2067348263, now seen corresponding path program 1 times [2020-10-16 13:29:49,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:29:49,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129595233] [2020-10-16 13:29:49,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:29:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:29:49,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:29:49,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129595233] [2020-10-16 13:29:49,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:29:49,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:29:49,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1648548242] [2020-10-16 13:29:49,871 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:29:49,873 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:29:49,877 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-10-16 13:29:49,878 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:29:49,878 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:29:49,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:29:49,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:29:49,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:29:49,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:29:49,884 INFO L87 Difference]: Start difference. First operand 79 states and 165 transitions. Second operand 5 states. [2020-10-16 13:29:49,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:29:49,928 INFO L93 Difference]: Finished difference Result 115 states and 240 transitions. [2020-10-16 13:29:49,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:29:49,928 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 13:29:49,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:29:49,929 INFO L225 Difference]: With dead ends: 115 [2020-10-16 13:29:49,929 INFO L226 Difference]: Without dead ends: 70 [2020-10-16 13:29:49,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:29:49,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-16 13:29:49,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-10-16 13:29:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-16 13:29:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 141 transitions. [2020-10-16 13:29:49,935 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 141 transitions. Word has length 13 [2020-10-16 13:29:49,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:29:49,935 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 141 transitions. [2020-10-16 13:29:49,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:29:49,935 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 141 transitions. [2020-10-16 13:29:49,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:29:49,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:29:49,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:29:49,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:29:49,937 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:29:49,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:29:49,938 INFO L82 PathProgramCache]: Analyzing trace with hash 2066656343, now seen corresponding path program 2 times [2020-10-16 13:29:49,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:29:49,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989337890] [2020-10-16 13:29:49,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:29:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:29:50,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:29:50,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989337890] [2020-10-16 13:29:50,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:29:50,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:29:50,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [334487754] [2020-10-16 13:29:50,002 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:29:50,005 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:29:50,010 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-10-16 13:29:50,010 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:29:50,010 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:29:50,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:29:50,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:29:50,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:29:50,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:29:50,012 INFO L87 Difference]: Start difference. First operand 70 states and 141 transitions. Second operand 4 states. [2020-10-16 13:29:50,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:29:50,040 INFO L93 Difference]: Finished difference Result 58 states and 96 transitions. [2020-10-16 13:29:50,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:29:50,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 13:29:50,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:29:50,043 INFO L225 Difference]: With dead ends: 58 [2020-10-16 13:29:50,043 INFO L226 Difference]: Without dead ends: 42 [2020-10-16 13:29:50,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:29:50,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-16 13:29:50,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-16 13:29:50,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-16 13:29:50,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 65 transitions. [2020-10-16 13:29:50,047 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 65 transitions. Word has length 13 [2020-10-16 13:29:50,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:29:50,048 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 65 transitions. [2020-10-16 13:29:50,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:29:50,048 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 65 transitions. [2020-10-16 13:29:50,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 13:29:50,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:29:50,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:29:50,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:29:50,049 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:29:50,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:29:50,050 INFO L82 PathProgramCache]: Analyzing trace with hash -820119456, now seen corresponding path program 1 times [2020-10-16 13:29:50,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:29:50,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906162210] [2020-10-16 13:29:50,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:29:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:29:50,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:29:50,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906162210] [2020-10-16 13:29:50,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:29:50,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:29:50,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2041339402] [2020-10-16 13:29:50,203 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:29:50,208 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:29:50,215 INFO L258 McrAutomatonBuilder]: Finished intersection with 24 states and 26 transitions. [2020-10-16 13:29:50,216 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:29:50,216 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:29:50,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:29:50,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:29:50,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:29:50,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:29:50,217 INFO L87 Difference]: Start difference. First operand 42 states and 65 transitions. Second operand 5 states. [2020-10-16 13:29:50,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:29:50,255 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2020-10-16 13:29:50,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:29:50,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-16 13:29:50,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:29:50,257 INFO L225 Difference]: With dead ends: 30 [2020-10-16 13:29:50,257 INFO L226 Difference]: Without dead ends: 24 [2020-10-16 13:29:50,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:29:50,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-16 13:29:50,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-16 13:29:50,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-16 13:29:50,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2020-10-16 13:29:50,259 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 15 [2020-10-16 13:29:50,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:29:50,259 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2020-10-16 13:29:50,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:29:50,260 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2020-10-16 13:29:50,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 13:29:50,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:29:50,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:29:50,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 13:29:50,262 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:29:50,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:29:50,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1736546836, now seen corresponding path program 1 times [2020-10-16 13:29:50,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:29:50,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467246439] [2020-10-16 13:29:50,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:29:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 13:29:50,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 13:29:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 13:29:50,437 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 13:29:50,485 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 13:29:50,485 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 13:29:50,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 13:29:50,508 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,509 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,515 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,515 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,515 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,518 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,518 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,518 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,519 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,519 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,520 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,520 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,520 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,520 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,520 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,521 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,521 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,521 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,521 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,522 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,523 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,523 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,523 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,523 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,523 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,523 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,524 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,524 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,524 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,524 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,525 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,525 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,531 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,531 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,531 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,531 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,531 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,532 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,532 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 13:29:50,532 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:29:50,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:29:50 BasicIcfg [2020-10-16 13:29:50,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:29:50,594 INFO L168 Benchmark]: Toolchain (without parser) took 7245.17 ms. Allocated memory was 138.9 MB in the beginning and 304.6 MB in the end (delta: 165.7 MB). Free memory was 99.7 MB in the beginning and 221.5 MB in the end (delta: -121.8 MB). Peak memory consumption was 43.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:29:50,595 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:29:50,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.99 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 99.4 MB in the beginning and 159.4 MB in the end (delta: -60.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:29:50,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.27 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 156.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-16 13:29:50,597 INFO L168 Benchmark]: Boogie Preprocessor took 73.89 ms. Allocated memory is still 202.4 MB. Free memory was 156.6 MB in the beginning and 154.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:29:50,598 INFO L168 Benchmark]: RCFGBuilder took 1751.49 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 154.5 MB in the beginning and 96.9 MB in the end (delta: 57.7 MB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2020-10-16 13:29:50,599 INFO L168 Benchmark]: TraceAbstraction took 4518.25 ms. Allocated memory was 234.4 MB in the beginning and 304.6 MB in the end (delta: 70.3 MB). Free memory was 96.9 MB in the beginning and 221.5 MB in the end (delta: -124.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:29:50,603 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 797.99 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 99.4 MB in the beginning and 159.4 MB in the end (delta: -60.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 97.27 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 156.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.89 ms. Allocated memory is still 202.4 MB. Free memory was 156.6 MB in the beginning and 154.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1751.49 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 154.5 MB in the beginning and 96.9 MB in the end (delta: 57.7 MB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4518.25 ms. Allocated memory was 234.4 MB in the beginning and 304.6 MB in the end (delta: 70.3 MB). Free memory was 96.9 MB in the beginning and 221.5 MB in the end (delta: -124.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 459 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 55 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.2s, 83 PlacesBefore, 29 PlacesAfterwards, 78 TransitionsBefore, 23 TransitionsAfterwards, 936 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 2602 MoverChecksTotal - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L698] 0 int __unbuffered_cnt = 0; [L700] 0 int __unbuffered_p0_EAX = 0; [L702] 0 int __unbuffered_p1_EAX = 0; [L704] 0 int __unbuffered_p1_EBX = 0; [L705] 0 _Bool main$tmp_guard0; [L706] 0 _Bool main$tmp_guard1; [L708] 0 int x = 0; [L709] 0 _Bool x$flush_delayed; [L710] 0 int x$mem_tmp; [L711] 0 _Bool x$r_buff0_thd0; [L712] 0 _Bool x$r_buff0_thd1; [L713] 0 _Bool x$r_buff0_thd2; [L714] 0 _Bool x$r_buff1_thd0; [L715] 0 _Bool x$r_buff1_thd1; [L716] 0 _Bool x$r_buff1_thd2; [L717] 0 _Bool x$read_delayed; [L718] 0 int *x$read_delayed_var; [L719] 0 int x$w_buff0; [L720] 0 _Bool x$w_buff0_used; [L721] 0 int x$w_buff1; [L722] 0 _Bool x$w_buff1_used; [L724] 0 int y = 0; [L725] 0 _Bool weak$$choice0; [L726] 0 _Bool weak$$choice2; [L802] 0 pthread_t t1641; [L803] FCALL, FORK 0 pthread_create(&t1641, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L804] 0 pthread_t t1642; [L805] FCALL, FORK 0 pthread_create(&t1642, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L760] 2 x$w_buff1 = x$w_buff0 [L761] 2 x$w_buff0 = 1 [L762] 2 x$w_buff1_used = x$w_buff0_used [L763] 2 x$w_buff0_used = (_Bool)1 [L8] COND TRUE 2 !expression [L8] 2 __VERIFIER_error() [L765] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L766] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L767] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L768] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L771] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L774] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L777] 2 __unbuffered_p1_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L730] 1 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L735] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L736] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L737] 1 x$flush_delayed = weak$$choice2 [L738] 1 x$mem_tmp = x [L739] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L739] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L740] EXPR 1 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L740] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L741] EXPR 1 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L741] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L742] EXPR 1 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L742] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L743] EXPR 1 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L743] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L744] EXPR 1 weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L744] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L745] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L745] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L745] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L745] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L746] 1 __unbuffered_p0_EAX = x [L747] EXPR 1 x$flush_delayed ? x$mem_tmp : x [L747] 1 x = x$flush_delayed ? x$mem_tmp : x [L748] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=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_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L755] 1 return 0; [L780] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L780] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L781] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L781] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L782] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L782] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L783] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L783] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L784] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L784] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L787] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L789] 2 return 0; [L807] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=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_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L4] COND FALSE 0 !(!cond) [L811] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L811] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L812] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L812] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L813] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L813] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L814] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L814] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L815] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L815] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L818] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 1) VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=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_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L8] COND TRUE 0 !expression [L8] 0 __VERIFIER_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=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_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 77 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.2s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 167 SDtfs, 162 SDslu, 224 SDs, 0 SdLazy, 102 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 2720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...