/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.epf -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 14:15:51,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 14:15:51,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 14:15:51,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 14:15:51,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 14:15:51,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 14:15:51,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 14:15:52,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 14:15:52,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 14:15:52,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 14:15:52,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 14:15:52,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 14:15:52,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 14:15:52,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 14:15:52,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 14:15:52,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 14:15:52,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 14:15:52,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 14:15:52,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 14:15:52,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 14:15:52,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 14:15:52,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 14:15:52,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 14:15:52,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 14:15:52,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-17 14:15:52,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-17 14:15:52,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-17 14:15:52,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-17 14:15:52,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-17 14:15:52,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-17 14:15:52,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 14:15:52,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 14:15:52,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 14:15:52,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 14:15:52,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 14:15:52,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 14:15:52,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 14:15:52,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 14:15:52,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 14:15:52,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 14:15:52,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 14:15:52,038 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-09-17 14:15:52,065 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 14:15:52,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 14:15:52,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 14:15:52,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 14:15:52,067 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 14:15:52,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 14:15:52,068 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 14:15:52,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 14:15:52,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 14:15:52,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 14:15:52,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 14:15:52,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 14:15:52,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 14:15:52,069 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 14:15:52,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 14:15:52,070 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 14:15:52,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 14:15:52,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 14:15:52,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 14:15:52,071 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 14:15:52,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 14:15:52,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 14:15:52,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 14:15:52,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-17 14:15:52,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 14:15:52,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 14:15:52,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 14:15:52,072 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-17 14:15:52,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 14:15:52,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 14:15:52,529 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 14:15:52,533 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 14:15:52,535 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 14:15:52,536 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 14:15:52,537 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2020-09-17 14:15:52,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83bb1a87c/30bcc0908537467a9579ad7cb3faf520/FLAGb017197dc [2020-09-17 14:15:53,333 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 14:15:53,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2020-09-17 14:15:53,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83bb1a87c/30bcc0908537467a9579ad7cb3faf520/FLAGb017197dc [2020-09-17 14:15:53,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83bb1a87c/30bcc0908537467a9579ad7cb3faf520 [2020-09-17 14:15:53,515 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 14:15:53,522 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 14:15:53,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 14:15:53,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 14:15:53,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 14:15:53,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 02:15:53" (1/1) ... [2020-09-17 14:15:53,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b78de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:53, skipping insertion in model container [2020-09-17 14:15:53,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 02:15:53" (1/1) ... [2020-09-17 14:15:53,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 14:15:53,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 14:15:54,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 14:15:54,483 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 14:15:54,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 14:15:55,009 INFO L208 MainTranslator]: Completed translation [2020-09-17 14:15:55,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:55 WrapperNode [2020-09-17 14:15:55,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 14:15:55,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 14:15:55,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 14:15:55,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 14:15:55,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:55" (1/1) ... [2020-09-17 14:15:55,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:55" (1/1) ... [2020-09-17 14:15:55,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 14:15:55,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 14:15:55,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 14:15:55,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 14:15:55,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:55" (1/1) ... [2020-09-17 14:15:55,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:55" (1/1) ... [2020-09-17 14:15:55,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:55" (1/1) ... [2020-09-17 14:15:55,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:55" (1/1) ... [2020-09-17 14:15:55,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:55" (1/1) ... [2020-09-17 14:15:55,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:55" (1/1) ... [2020-09-17 14:15:55,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:55" (1/1) ... [2020-09-17 14:15:55,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 14:15:55,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 14:15:55,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 14:15:55,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 14:15:55,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 14:15:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 14:15:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-17 14:15:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-17 14:15:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 14:15:55,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 14:15:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-09-17 14:15:55,268 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-09-17 14:15:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 14:15:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 14:15:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-17 14:15:55,271 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 14:15:55,997 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 14:15:55,998 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-09-17 14:15:56,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 02:15:56 BoogieIcfgContainer [2020-09-17 14:15:56,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 14:15:56,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 14:15:56,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 14:15:56,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 14:15:56,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 02:15:53" (1/3) ... [2020-09-17 14:15:56,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48457cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 02:15:56, skipping insertion in model container [2020-09-17 14:15:56,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:55" (2/3) ... [2020-09-17 14:15:56,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48457cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 02:15:56, skipping insertion in model container [2020-09-17 14:15:56,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 02:15:56" (3/3) ... [2020-09-17 14:15:56,014 INFO L109 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2020-09-17 14:15:56,026 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 14:15:56,026 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-17 14:15:56,036 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-09-17 14:15:56,037 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 14:15:56,072 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,072 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,073 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,073 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,073 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,073 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,074 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,074 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,074 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,074 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,075 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,075 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,075 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,075 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,076 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,076 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,076 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,076 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,077 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,077 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,077 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,077 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,078 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,078 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,078 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,078 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,079 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,079 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,079 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,080 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,080 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,080 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,081 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,081 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,081 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,081 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,082 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,082 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,082 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,082 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,083 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,083 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,083 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,083 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,084 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,084 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,084 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,085 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,085 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,085 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,085 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,086 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,086 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,086 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,086 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,087 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,087 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,087 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,092 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,092 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,093 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,093 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,093 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,094 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,094 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,094 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,094 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,095 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,095 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,106 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,106 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,107 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,107 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,107 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,107 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,108 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,108 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,108 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,108 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,109 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:56,149 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-09-17 14:15:56,178 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 14:15:56,179 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 14:15:56,179 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-17 14:15:56,179 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 14:15:56,179 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 14:15:56,179 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 14:15:56,180 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 14:15:56,180 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 14:15:56,205 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 131 transitions, 284 flow [2020-09-17 14:15:56,208 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 129 places, 131 transitions, 284 flow [2020-09-17 14:15:56,288 INFO L129 PetriNetUnfolder]: 9/169 cut-off events. [2020-09-17 14:15:56,288 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-17 14:15:56,298 INFO L80 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 169 events. 9/169 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 347 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 86. Up to 4 conditions per place. [2020-09-17 14:15:56,306 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 129 places, 131 transitions, 284 flow [2020-09-17 14:15:56,389 INFO L129 PetriNetUnfolder]: 9/169 cut-off events. [2020-09-17 14:15:56,390 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-17 14:15:56,391 INFO L80 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 169 events. 9/169 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 347 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 86. Up to 4 conditions per place. [2020-09-17 14:15:56,419 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2200 [2020-09-17 14:15:56,421 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-17 14:15:57,199 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-17 14:15:57,223 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 14:15:57,228 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-17 14:15:57,248 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 14:15:57,250 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-09-17 14:15:57,251 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:95, output treesize:67 [2020-09-17 14:15:58,838 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-17 14:15:58,867 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 14:15:58,873 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-17 14:15:58,894 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 14:15:58,895 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-09-17 14:15:58,895 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:74 [2020-09-17 14:15:59,310 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-09-17 14:15:59,738 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-09-17 14:15:59,760 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-17 14:15:59,848 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 14:15:59,858 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-17 14:15:59,926 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 14:15:59,927 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-09-17 14:15:59,928 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:148, output treesize:160 [2020-09-17 14:16:00,595 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-09-17 14:16:01,382 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-09-17 14:16:01,772 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-09-17 14:16:02,026 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-09-17 14:16:02,311 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-09-17 14:16:02,507 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-09-17 14:16:02,547 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2954 [2020-09-17 14:16:02,547 INFO L214 etLargeBlockEncoding]: Total number of compositions: 134 [2020-09-17 14:16:02,552 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 32 transitions, 86 flow [2020-09-17 14:16:02,570 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 190 states. [2020-09-17 14:16:02,573 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2020-09-17 14:16:02,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-17 14:16:02,581 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:02,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-17 14:16:02,583 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:02,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:02,591 INFO L82 PathProgramCache]: Analyzing trace with hash 14364445, now seen corresponding path program 1 times [2020-09-17 14:16:02,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:02,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149552212] [2020-09-17 14:16:02,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:03,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:03,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149552212] [2020-09-17 14:16:03,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:03,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 14:16:03,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931971600] [2020-09-17 14:16:03,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 14:16:03,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:03,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 14:16:03,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 14:16:03,119 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 3 states. [2020-09-17 14:16:03,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:03,270 INFO L93 Difference]: Finished difference Result 248 states and 560 transitions. [2020-09-17 14:16:03,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 14:16:03,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-09-17 14:16:03,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:03,291 INFO L225 Difference]: With dead ends: 248 [2020-09-17 14:16:03,291 INFO L226 Difference]: Without dead ends: 230 [2020-09-17 14:16:03,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 14:16:03,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-09-17 14:16:03,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 200. [2020-09-17 14:16:03,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-09-17 14:16:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 444 transitions. [2020-09-17 14:16:03,367 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 444 transitions. Word has length 4 [2020-09-17 14:16:03,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:03,368 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 444 transitions. [2020-09-17 14:16:03,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 14:16:03,368 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 444 transitions. [2020-09-17 14:16:03,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-09-17 14:16:03,369 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:03,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-09-17 14:16:03,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 14:16:03,369 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:03,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:03,370 INFO L82 PathProgramCache]: Analyzing trace with hash 445298819, now seen corresponding path program 1 times [2020-09-17 14:16:03,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:03,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498099469] [2020-09-17 14:16:03,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:03,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:03,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498099469] [2020-09-17 14:16:03,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:03,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 14:16:03,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304222060] [2020-09-17 14:16:03,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 14:16:03,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:03,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 14:16:03,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 14:16:03,612 INFO L87 Difference]: Start difference. First operand 200 states and 444 transitions. Second operand 3 states. [2020-09-17 14:16:03,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:03,705 INFO L93 Difference]: Finished difference Result 243 states and 536 transitions. [2020-09-17 14:16:03,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 14:16:03,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-09-17 14:16:03,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:03,708 INFO L225 Difference]: With dead ends: 243 [2020-09-17 14:16:03,709 INFO L226 Difference]: Without dead ends: 236 [2020-09-17 14:16:03,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 14:16:03,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-09-17 14:16:03,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 221. [2020-09-17 14:16:03,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-09-17 14:16:03,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 505 transitions. [2020-09-17 14:16:03,731 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 505 transitions. Word has length 5 [2020-09-17 14:16:03,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:03,731 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 505 transitions. [2020-09-17 14:16:03,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 14:16:03,731 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 505 transitions. [2020-09-17 14:16:03,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 14:16:03,733 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:03,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:03,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 14:16:03,734 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:03,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:03,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1770707455, now seen corresponding path program 1 times [2020-09-17 14:16:03,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:03,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885275570] [2020-09-17 14:16:03,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:03,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:03,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885275570] [2020-09-17 14:16:03,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:03,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 14:16:03,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794517610] [2020-09-17 14:16:03,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 14:16:03,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:03,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 14:16:03,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 14:16:03,933 INFO L87 Difference]: Start difference. First operand 221 states and 505 transitions. Second operand 3 states. [2020-09-17 14:16:03,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:03,954 INFO L93 Difference]: Finished difference Result 86 states and 167 transitions. [2020-09-17 14:16:03,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 14:16:03,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-17 14:16:03,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:03,956 INFO L225 Difference]: With dead ends: 86 [2020-09-17 14:16:03,956 INFO L226 Difference]: Without dead ends: 86 [2020-09-17 14:16:03,956 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 14:16:03,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-17 14:16:03,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-09-17 14:16:03,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-17 14:16:03,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 167 transitions. [2020-09-17 14:16:03,964 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 167 transitions. Word has length 9 [2020-09-17 14:16:03,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:03,964 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 167 transitions. [2020-09-17 14:16:03,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 14:16:03,965 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 167 transitions. [2020-09-17 14:16:03,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 14:16:03,967 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:03,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:03,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 14:16:03,968 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:03,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:03,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1268591532, now seen corresponding path program 1 times [2020-09-17 14:16:03,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:03,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114516726] [2020-09-17 14:16:03,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:04,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:04,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114516726] [2020-09-17 14:16:04,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:04,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:04,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679287627] [2020-09-17 14:16:04,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-17 14:16:04,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:04,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-17 14:16:04,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-17 14:16:04,441 INFO L87 Difference]: Start difference. First operand 86 states and 167 transitions. Second operand 13 states. [2020-09-17 14:16:05,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:05,526 INFO L93 Difference]: Finished difference Result 86 states and 166 transitions. [2020-09-17 14:16:05,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-17 14:16:05,528 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 18 [2020-09-17 14:16:05,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:05,529 INFO L225 Difference]: With dead ends: 86 [2020-09-17 14:16:05,529 INFO L226 Difference]: Without dead ends: 74 [2020-09-17 14:16:05,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=237, Invalid=465, Unknown=0, NotChecked=0, Total=702 [2020-09-17 14:16:05,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-17 14:16:05,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-17 14:16:05,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-17 14:16:05,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 145 transitions. [2020-09-17 14:16:05,535 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 145 transitions. Word has length 18 [2020-09-17 14:16:05,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:05,536 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 145 transitions. [2020-09-17 14:16:05,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-17 14:16:05,536 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 145 transitions. [2020-09-17 14:16:05,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 14:16:05,537 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:05,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:05,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 14:16:05,538 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:05,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:05,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1297219722, now seen corresponding path program 1 times [2020-09-17 14:16:05,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:05,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996044055] [2020-09-17 14:16:05,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:06,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:06,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996044055] [2020-09-17 14:16:06,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:06,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-17 14:16:06,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593784131] [2020-09-17 14:16:06,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-17 14:16:06,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:06,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-17 14:16:06,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-17 14:16:06,047 INFO L87 Difference]: Start difference. First operand 74 states and 145 transitions. Second operand 8 states. [2020-09-17 14:16:06,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:06,327 INFO L93 Difference]: Finished difference Result 117 states and 209 transitions. [2020-09-17 14:16:06,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 14:16:06,328 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-09-17 14:16:06,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:06,329 INFO L225 Difference]: With dead ends: 117 [2020-09-17 14:16:06,330 INFO L226 Difference]: Without dead ends: 117 [2020-09-17 14:16:06,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-17 14:16:06,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-09-17 14:16:06,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 94. [2020-09-17 14:16:06,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-17 14:16:06,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 175 transitions. [2020-09-17 14:16:06,335 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 175 transitions. Word has length 18 [2020-09-17 14:16:06,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:06,336 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 175 transitions. [2020-09-17 14:16:06,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-17 14:16:06,336 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 175 transitions. [2020-09-17 14:16:06,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 14:16:06,337 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:06,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:06,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 14:16:06,338 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:06,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:06,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1297219740, now seen corresponding path program 1 times [2020-09-17 14:16:06,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:06,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97689614] [2020-09-17 14:16:06,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:07,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:07,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97689614] [2020-09-17 14:16:07,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:07,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:07,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299874198] [2020-09-17 14:16:07,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:07,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:07,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:07,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:07,393 INFO L87 Difference]: Start difference. First operand 94 states and 175 transitions. Second operand 14 states. [2020-09-17 14:16:08,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:08,415 INFO L93 Difference]: Finished difference Result 153 states and 271 transitions. [2020-09-17 14:16:08,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-17 14:16:08,416 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-17 14:16:08,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:08,417 INFO L225 Difference]: With dead ends: 153 [2020-09-17 14:16:08,417 INFO L226 Difference]: Without dead ends: 145 [2020-09-17 14:16:08,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2020-09-17 14:16:08,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-09-17 14:16:08,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 100. [2020-09-17 14:16:08,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-17 14:16:08,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 185 transitions. [2020-09-17 14:16:08,424 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 185 transitions. Word has length 18 [2020-09-17 14:16:08,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:08,424 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 185 transitions. [2020-09-17 14:16:08,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:08,425 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 185 transitions. [2020-09-17 14:16:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 14:16:08,426 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:08,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:08,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 14:16:08,427 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:08,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:08,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1046484834, now seen corresponding path program 2 times [2020-09-17 14:16:08,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:08,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399465453] [2020-09-17 14:16:08,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:09,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:09,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399465453] [2020-09-17 14:16:09,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:09,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:09,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220623728] [2020-09-17 14:16:09,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:09,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:09,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:09,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:09,478 INFO L87 Difference]: Start difference. First operand 100 states and 185 transitions. Second operand 14 states. [2020-09-17 14:16:10,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:10,707 INFO L93 Difference]: Finished difference Result 155 states and 274 transitions. [2020-09-17 14:16:10,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-17 14:16:10,708 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-17 14:16:10,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:10,710 INFO L225 Difference]: With dead ends: 155 [2020-09-17 14:16:10,710 INFO L226 Difference]: Without dead ends: 143 [2020-09-17 14:16:10,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-09-17 14:16:10,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-09-17 14:16:10,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 98. [2020-09-17 14:16:10,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-17 14:16:10,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 181 transitions. [2020-09-17 14:16:10,715 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 181 transitions. Word has length 18 [2020-09-17 14:16:10,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:10,716 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 181 transitions. [2020-09-17 14:16:10,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:10,716 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 181 transitions. [2020-09-17 14:16:10,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 14:16:10,717 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:10,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:10,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 14:16:10,718 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:10,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:10,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1347055900, now seen corresponding path program 3 times [2020-09-17 14:16:10,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:10,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724423011] [2020-09-17 14:16:10,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:11,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:11,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724423011] [2020-09-17 14:16:11,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:11,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:11,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578622174] [2020-09-17 14:16:11,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:11,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:11,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:11,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:11,738 INFO L87 Difference]: Start difference. First operand 98 states and 181 transitions. Second operand 14 states. [2020-09-17 14:16:12,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:12,916 INFO L93 Difference]: Finished difference Result 139 states and 253 transitions. [2020-09-17 14:16:12,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:12,917 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-17 14:16:12,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:12,919 INFO L225 Difference]: With dead ends: 139 [2020-09-17 14:16:12,919 INFO L226 Difference]: Without dead ends: 123 [2020-09-17 14:16:12,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-09-17 14:16:12,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-17 14:16:12,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 96. [2020-09-17 14:16:12,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-17 14:16:12,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 177 transitions. [2020-09-17 14:16:12,925 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 177 transitions. Word has length 18 [2020-09-17 14:16:12,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:12,926 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 177 transitions. [2020-09-17 14:16:12,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:12,926 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 177 transitions. [2020-09-17 14:16:12,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 14:16:12,927 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:12,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:12,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-17 14:16:12,928 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:12,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:12,928 INFO L82 PathProgramCache]: Analyzing trace with hash 646402192, now seen corresponding path program 2 times [2020-09-17 14:16:12,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:12,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921139894] [2020-09-17 14:16:12,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:13,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:13,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921139894] [2020-09-17 14:16:13,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:13,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-17 14:16:13,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597156034] [2020-09-17 14:16:13,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-17 14:16:13,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:13,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-17 14:16:13,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-17 14:16:13,374 INFO L87 Difference]: Start difference. First operand 96 states and 177 transitions. Second operand 8 states. [2020-09-17 14:16:13,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:13,788 INFO L93 Difference]: Finished difference Result 119 states and 212 transitions. [2020-09-17 14:16:13,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-17 14:16:13,789 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-09-17 14:16:13,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:13,791 INFO L225 Difference]: With dead ends: 119 [2020-09-17 14:16:13,791 INFO L226 Difference]: Without dead ends: 119 [2020-09-17 14:16:13,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-17 14:16:13,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-17 14:16:13,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-09-17 14:16:13,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-17 14:16:13,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 177 transitions. [2020-09-17 14:16:13,798 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 177 transitions. Word has length 18 [2020-09-17 14:16:13,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:13,799 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 177 transitions. [2020-09-17 14:16:13,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-17 14:16:13,799 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 177 transitions. [2020-09-17 14:16:13,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 14:16:13,801 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:13,801 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:13,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-17 14:16:13,801 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:13,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:13,802 INFO L82 PathProgramCache]: Analyzing trace with hash 646402210, now seen corresponding path program 4 times [2020-09-17 14:16:13,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:13,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8228599] [2020-09-17 14:16:13,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:14,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:14,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8228599] [2020-09-17 14:16:14,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:14,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:14,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963170054] [2020-09-17 14:16:14,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:14,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:14,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:14,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:14,869 INFO L87 Difference]: Start difference. First operand 96 states and 177 transitions. Second operand 14 states. [2020-09-17 14:16:16,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:16,044 INFO L93 Difference]: Finished difference Result 135 states and 244 transitions. [2020-09-17 14:16:16,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:16,050 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-17 14:16:16,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:16,051 INFO L225 Difference]: With dead ends: 135 [2020-09-17 14:16:16,052 INFO L226 Difference]: Without dead ends: 113 [2020-09-17 14:16:16,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-09-17 14:16:16,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-09-17 14:16:16,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 92. [2020-09-17 14:16:16,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-17 14:16:16,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 171 transitions. [2020-09-17 14:16:16,056 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 171 transitions. Word has length 18 [2020-09-17 14:16:16,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:16,057 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 171 transitions. [2020-09-17 14:16:16,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:16,057 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 171 transitions. [2020-09-17 14:16:16,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 14:16:16,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:16,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:16,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-17 14:16:16,058 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:16,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:16,059 INFO L82 PathProgramCache]: Analyzing trace with hash -318962108, now seen corresponding path program 5 times [2020-09-17 14:16:16,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:16,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097793704] [2020-09-17 14:16:16,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:17,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:17,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097793704] [2020-09-17 14:16:17,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:17,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:17,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941447163] [2020-09-17 14:16:17,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:17,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:17,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:17,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:17,027 INFO L87 Difference]: Start difference. First operand 92 states and 171 transitions. Second operand 14 states. [2020-09-17 14:16:18,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:18,178 INFO L93 Difference]: Finished difference Result 152 states and 280 transitions. [2020-09-17 14:16:18,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-17 14:16:18,181 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-17 14:16:18,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:18,183 INFO L225 Difference]: With dead ends: 152 [2020-09-17 14:16:18,184 INFO L226 Difference]: Without dead ends: 144 [2020-09-17 14:16:18,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:18,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-17 14:16:18,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 100. [2020-09-17 14:16:18,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-17 14:16:18,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 187 transitions. [2020-09-17 14:16:18,189 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 187 transitions. Word has length 18 [2020-09-17 14:16:18,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:18,189 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 187 transitions. [2020-09-17 14:16:18,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:18,189 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 187 transitions. [2020-09-17 14:16:18,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 14:16:18,190 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:18,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:18,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-17 14:16:18,191 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:18,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:18,191 INFO L82 PathProgramCache]: Analyzing trace with hash -569697014, now seen corresponding path program 6 times [2020-09-17 14:16:18,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:18,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031929189] [2020-09-17 14:16:18,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:19,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:19,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031929189] [2020-09-17 14:16:19,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:19,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:19,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633412080] [2020-09-17 14:16:19,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:19,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:19,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:19,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:19,172 INFO L87 Difference]: Start difference. First operand 100 states and 187 transitions. Second operand 14 states. [2020-09-17 14:16:20,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:20,371 INFO L93 Difference]: Finished difference Result 154 states and 283 transitions. [2020-09-17 14:16:20,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-17 14:16:20,372 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-17 14:16:20,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:20,374 INFO L225 Difference]: With dead ends: 154 [2020-09-17 14:16:20,374 INFO L226 Difference]: Without dead ends: 142 [2020-09-17 14:16:20,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:20,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-09-17 14:16:20,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 98. [2020-09-17 14:16:20,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-17 14:16:20,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 183 transitions. [2020-09-17 14:16:20,380 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 183 transitions. Word has length 18 [2020-09-17 14:16:20,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:20,380 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 183 transitions. [2020-09-17 14:16:20,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:20,380 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 183 transitions. [2020-09-17 14:16:20,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 14:16:20,381 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:20,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:20,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-17 14:16:20,382 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:20,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:20,382 INFO L82 PathProgramCache]: Analyzing trace with hash -269125948, now seen corresponding path program 7 times [2020-09-17 14:16:20,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:20,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629893816] [2020-09-17 14:16:20,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:21,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:21,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629893816] [2020-09-17 14:16:21,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:21,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:21,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339229190] [2020-09-17 14:16:21,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:21,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:21,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:21,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:21,388 INFO L87 Difference]: Start difference. First operand 98 states and 183 transitions. Second operand 14 states. [2020-09-17 14:16:22,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:22,470 INFO L93 Difference]: Finished difference Result 149 states and 278 transitions. [2020-09-17 14:16:22,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-17 14:16:22,471 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-17 14:16:22,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:22,473 INFO L225 Difference]: With dead ends: 149 [2020-09-17 14:16:22,473 INFO L226 Difference]: Without dead ends: 133 [2020-09-17 14:16:22,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:22,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-09-17 14:16:22,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 96. [2020-09-17 14:16:22,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-17 14:16:22,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 179 transitions. [2020-09-17 14:16:22,478 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 179 transitions. Word has length 18 [2020-09-17 14:16:22,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:22,478 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 179 transitions. [2020-09-17 14:16:22,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:22,478 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 179 transitions. [2020-09-17 14:16:22,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 14:16:22,479 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:22,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:22,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-17 14:16:22,479 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:22,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:22,480 INFO L82 PathProgramCache]: Analyzing trace with hash -969779638, now seen corresponding path program 8 times [2020-09-17 14:16:22,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:22,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137692692] [2020-09-17 14:16:22,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:23,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:23,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137692692] [2020-09-17 14:16:23,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:23,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:23,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499675707] [2020-09-17 14:16:23,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:23,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:23,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:23,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:23,499 INFO L87 Difference]: Start difference. First operand 96 states and 179 transitions. Second operand 14 states. [2020-09-17 14:16:24,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:24,637 INFO L93 Difference]: Finished difference Result 167 states and 302 transitions. [2020-09-17 14:16:24,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-17 14:16:24,638 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-17 14:16:24,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:24,640 INFO L225 Difference]: With dead ends: 167 [2020-09-17 14:16:24,640 INFO L226 Difference]: Without dead ends: 147 [2020-09-17 14:16:24,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:24,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-09-17 14:16:24,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 94. [2020-09-17 14:16:24,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-17 14:16:24,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 175 transitions. [2020-09-17 14:16:24,646 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 175 transitions. Word has length 18 [2020-09-17 14:16:24,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:24,646 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 175 transitions. [2020-09-17 14:16:24,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:24,647 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 175 transitions. [2020-09-17 14:16:24,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 14:16:24,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:24,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:24,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-17 14:16:24,648 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:24,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:24,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1049440908, now seen corresponding path program 3 times [2020-09-17 14:16:24,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:24,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022110879] [2020-09-17 14:16:24,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:25,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:25,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022110879] [2020-09-17 14:16:25,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:25,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-17 14:16:25,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930701952] [2020-09-17 14:16:25,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 14:16:25,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:25,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 14:16:25,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-17 14:16:25,265 INFO L87 Difference]: Start difference. First operand 94 states and 175 transitions. Second operand 11 states. [2020-09-17 14:16:25,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:25,892 INFO L93 Difference]: Finished difference Result 206 states and 364 transitions. [2020-09-17 14:16:25,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-17 14:16:25,893 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-09-17 14:16:25,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:25,895 INFO L225 Difference]: With dead ends: 206 [2020-09-17 14:16:25,895 INFO L226 Difference]: Without dead ends: 206 [2020-09-17 14:16:25,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2020-09-17 14:16:25,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-09-17 14:16:25,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 116. [2020-09-17 14:16:25,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-09-17 14:16:25,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 229 transitions. [2020-09-17 14:16:25,906 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 229 transitions. Word has length 18 [2020-09-17 14:16:25,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:25,906 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 229 transitions. [2020-09-17 14:16:25,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 14:16:25,907 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 229 transitions. [2020-09-17 14:16:25,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 14:16:25,908 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:25,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:25,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-17 14:16:25,908 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:25,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:25,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1049440926, now seen corresponding path program 9 times [2020-09-17 14:16:25,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:25,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082967638] [2020-09-17 14:16:25,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 14:16:25,972 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 14:16:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 14:16:26,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 14:16:26,135 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-17 14:16:26,138 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-17 14:16:26,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-17 14:16:26,140 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-09-17 14:16:26,161 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [392] [392] L1682-->L1739: Formula: (and (= ULTIMATE.start_ldv_assert_~expression_Out-558755543 |ULTIMATE.start_ldv_assert_#in~expression_In-558755543|) (not (= ULTIMATE.start_ldv_assert_~expression_Out-558755543 0))) InVars {ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In-558755543|} OutVars{ULTIMATE.start_main_#t~mem40=|ULTIMATE.start_main_#t~mem40_Out-558755543|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In-558755543|, ULTIMATE.start_ldv_assert_~expression=ULTIMATE.start_ldv_assert_~expression_Out-558755543} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~mem40, ULTIMATE.start_ldv_assert_~expression] because there is no mapped edge [2020-09-17 14:16:26,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 02:16:26 BasicIcfg [2020-09-17 14:16:26,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 14:16:26,285 INFO L168 Benchmark]: Toolchain (without parser) took 32767.94 ms. Allocated memory was 138.4 MB in the beginning and 482.3 MB in the end (delta: 343.9 MB). Free memory was 98.1 MB in the beginning and 433.0 MB in the end (delta: -334.9 MB). Peak memory consumption was 356.9 MB. Max. memory is 7.1 GB. [2020-09-17 14:16:26,289 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-17 14:16:26,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1486.59 ms. Allocated memory was 138.4 MB in the beginning and 234.4 MB in the end (delta: 95.9 MB). Free memory was 97.4 MB in the beginning and 168.5 MB in the end (delta: -71.1 MB). Peak memory consumption was 79.2 MB. Max. memory is 7.1 GB. [2020-09-17 14:16:26,293 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.28 ms. Allocated memory is still 234.4 MB. Free memory was 168.5 MB in the beginning and 164.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-09-17 14:16:26,294 INFO L168 Benchmark]: Boogie Preprocessor took 53.91 ms. Allocated memory is still 234.4 MB. Free memory was 164.1 MB in the beginning and 161.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-17 14:16:26,294 INFO L168 Benchmark]: RCFGBuilder took 836.91 ms. Allocated memory is still 234.4 MB. Free memory was 161.1 MB in the beginning and 117.2 MB in the end (delta: 43.8 MB). Peak memory consumption was 43.8 MB. Max. memory is 7.1 GB. [2020-09-17 14:16:26,295 INFO L168 Benchmark]: TraceAbstraction took 30273.21 ms. Allocated memory was 234.4 MB in the beginning and 482.3 MB in the end (delta: 248.0 MB). Free memory was 115.8 MB in the beginning and 433.0 MB in the end (delta: -317.2 MB). Peak memory consumption was 278.7 MB. Max. memory is 7.1 GB. [2020-09-17 14:16:26,301 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1486.59 ms. Allocated memory was 138.4 MB in the beginning and 234.4 MB in the end (delta: 95.9 MB). Free memory was 97.4 MB in the beginning and 168.5 MB in the end (delta: -71.1 MB). Peak memory consumption was 79.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 101.28 ms. Allocated memory is still 234.4 MB. Free memory was 168.5 MB in the beginning and 164.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.91 ms. Allocated memory is still 234.4 MB. Free memory was 164.1 MB in the beginning and 161.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 836.91 ms. Allocated memory is still 234.4 MB. Free memory was 161.1 MB in the beginning and 117.2 MB in the end (delta: 43.8 MB). Peak memory consumption was 43.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30273.21 ms. Allocated memory was 234.4 MB in the beginning and 482.3 MB in the end (delta: 248.0 MB). Free memory was 115.8 MB in the beginning and 433.0 MB in the end (delta: -317.2 MB). Peak memory consumption was 278.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 6.3s, 129 ProgramPointsBefore, 34 ProgramPointsAfterwards, 131 TransitionsBefore, 32 TransitionsAfterwards, 2200 CoEnabledTransitionPairs, 7 FixpointIterations, 63 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 16 ConcurrentYvCompositions, 4 ChoiceCompositions, 1101 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2954 CheckedPairsTotal, 134 TotalNumberOfCompositions - CounterExampleResult [Line: 1682]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1683] 0 pthread_t t1,t2; [L1725] 0 return 0; [L1731] 0 int ret = my_drv_init(); [L1732] COND TRUE 0 ret==0 [L1733] 0 int probe_ret; [L1734] 0 struct my_data data; [L1704] 0 struct device *d = &data->dev; [L1706] 0 data->shared.a = 0 [L1707] 0 data->shared.b = 0 [L1708] 0 int res = __VERIFIER_nondet_int(); [L1709] COND FALSE 0 !(\read(res)) [L1711] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={6:24}, t1={5:0}, t2={7:0}] [L1696] 1 struct device *dev = (struct device*)arg; [L1697] 1 struct my_data *data; [L1698] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1698] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1699] 1 data->shared.a = 1 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1700] 1 data->shared.b VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data->shared.b=0, dev={6:24}, t1={5:0}, t2={7:0}] [L1712] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data->shared.b=0, dev={6:24}, t1={5:0}, t2={7:0}] [L1696] 2 struct device *dev = (struct device*)arg; [L1697] 2 struct my_data *data; [L1698] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1698] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1699] 2 data->shared.a = 1 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data->shared.b=0, dev={6:24}, t1={5:0}, t2={7:0}] [L1700] EXPR 2 data->shared.b VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data->shared.b=0, dev={6:24}, t1={5:0}, t2={7:0}] [L1700] 2 data->shared.b = data->shared.b + 1 [L1701] 2 return 0; [L1700] 1 data->shared.b = data->shared.b + 1 [L1701] 1 return 0; [L1713] 0 return 0; [L1735] 0 probe_ret = my_drv_probe(&data) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1736] COND TRUE 0 probe_ret==0 [L1719] 0 void *status; [L1720] 0 \read(t1) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1720] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1721] 0 \read(t2) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1721] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1738] 0 data.shared.a [L1739] 0 data.shared.b [L1682] COND TRUE 0 !expression [L1682] 0 __VERIFIER_error() VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 111 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.9s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.3s, HoareTripleCheckerStatistics: 269 SDtfs, 583 SDslu, 947 SDs, 0 SdLazy, 3861 SolverSat, 396 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 11.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 497 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 219 ConstructedInterpolants, 0 QuantifiedInterpolants, 79189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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...