/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 18:30:02,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 18:30:02,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 18:30:02,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 18:30:02,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 18:30:02,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 18:30:02,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 18:30:02,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 18:30:02,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 18:30:02,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 18:30:02,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 18:30:02,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 18:30:02,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 18:30:02,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 18:30:02,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 18:30:02,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 18:30:02,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 18:30:02,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 18:30:02,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 18:30:02,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 18:30:02,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 18:30:02,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 18:30:02,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 18:30:02,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 18:30:02,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 18:30:02,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 18:30:02,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 18:30:02,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 18:30:02,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 18:30:02,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 18:30:02,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 18:30:02,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 18:30:02,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 18:30:02,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 18:30:02,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 18:30:02,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 18:30:02,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 18:30:02,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 18:30:02,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 18:30:02,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 18:30:02,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 18:30:02,210 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-09 18:30:02,241 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 18:30:02,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 18:30:02,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 18:30:02,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 18:30:02,243 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 18:30:02,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 18:30:02,243 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 18:30:02,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 18:30:02,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 18:30:02,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 18:30:02,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 18:30:02,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 18:30:02,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 18:30:02,245 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 18:30:02,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 18:30:02,245 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 18:30:02,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 18:30:02,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 18:30:02,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 18:30:02,246 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 18:30:02,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 18:30:02,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 18:30:02,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 18:30:02,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 18:30:02,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 18:30:02,247 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-09 18:30:02,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 18:30:02,247 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-09 18:30:02,247 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-09 18:30:02,248 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 18:30:02,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 18:30:02,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 18:30:02,542 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 18:30:02,544 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 18:30:02,544 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 18:30:02,545 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2020-10-09 18:30:02,602 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50104c524/4ca182134e924365a31ed489816c4f75/FLAGcc4ba75fa [2020-10-09 18:30:03,160 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 18:30:03,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2020-10-09 18:30:03,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50104c524/4ca182134e924365a31ed489816c4f75/FLAGcc4ba75fa [2020-10-09 18:30:03,430 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50104c524/4ca182134e924365a31ed489816c4f75 [2020-10-09 18:30:03,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 18:30:03,441 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 18:30:03,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 18:30:03,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 18:30:03,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 18:30:03,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 06:30:03" (1/1) ... [2020-10-09 18:30:03,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6649cd69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:30:03, skipping insertion in model container [2020-10-09 18:30:03,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 06:30:03" (1/1) ... [2020-10-09 18:30:03,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 18:30:03,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 18:30:04,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 18:30:04,211 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 18:30:04,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 18:30:04,665 INFO L208 MainTranslator]: Completed translation [2020-10-09 18:30:04,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:30:04 WrapperNode [2020-10-09 18:30:04,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 18:30:04,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 18:30:04,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 18:30:04,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 18:30:04,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:30:04" (1/1) ... [2020-10-09 18:30:04,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:30:04" (1/1) ... [2020-10-09 18:30:04,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 18:30:04,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 18:30:04,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 18:30:04,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 18:30:04,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:30:04" (1/1) ... [2020-10-09 18:30:04,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:30:04" (1/1) ... [2020-10-09 18:30:04,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:30:04" (1/1) ... [2020-10-09 18:30:04,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:30:04" (1/1) ... [2020-10-09 18:30:04,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:30:04" (1/1) ... [2020-10-09 18:30:04,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:30:04" (1/1) ... [2020-10-09 18:30:04,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:30:04" (1/1) ... [2020-10-09 18:30:04,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 18:30:04,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 18:30:04,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 18:30:04,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 18:30:04,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:30:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 18:30:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 18:30:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-09 18:30:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-09 18:30:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-09 18:30:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 18:30:04,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 18:30:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-10-09 18:30:04,862 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-10-09 18:30:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 18:30:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 18:30:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-09 18:30:04,865 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 18:30:05,428 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 18:30:05,428 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-09 18:30:05,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 06:30:05 BoogieIcfgContainer [2020-10-09 18:30:05,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 18:30:05,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 18:30:05,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 18:30:05,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 18:30:05,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 06:30:03" (1/3) ... [2020-10-09 18:30:05,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d86dc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 06:30:05, skipping insertion in model container [2020-10-09 18:30:05,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:30:04" (2/3) ... [2020-10-09 18:30:05,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d86dc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 06:30:05, skipping insertion in model container [2020-10-09 18:30:05,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 06:30:05" (3/3) ... [2020-10-09 18:30:05,438 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2020-10-09 18:30:05,449 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 18:30:05,456 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-09 18:30:05,457 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 18:30:05,488 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,488 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,489 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,489 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,489 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,489 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,489 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,490 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,490 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,490 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,490 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,490 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,490 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,491 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,491 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,491 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,491 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,491 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,492 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,492 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,492 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,492 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,493 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,493 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,493 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,493 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,493 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,494 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,494 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,494 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,494 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,495 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,495 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,495 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,495 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,495 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,496 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,496 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,496 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,496 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,496 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,497 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,497 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,497 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,497 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,497 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,498 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,498 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,498 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,498 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,498 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,499 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,499 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,499 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,499 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,499 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,500 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,500 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,500 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,500 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,501 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,501 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,501 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,501 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,501 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,502 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,502 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,502 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,502 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,502 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,506 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,506 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,506 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,506 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,507 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,507 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,507 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,507 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,507 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,508 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,508 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,508 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,515 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,515 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,515 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,515 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,516 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,516 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,516 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,516 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,517 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,517 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,517 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,517 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:30:05,543 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-09 18:30:05,562 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 18:30:05,562 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 18:30:05,562 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 18:30:05,563 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 18:30:05,563 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 18:30:05,563 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 18:30:05,563 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 18:30:05,563 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 18:30:05,580 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 153 places, 157 transitions, 336 flow [2020-10-09 18:30:05,659 INFO L129 PetriNetUnfolder]: 13/215 cut-off events. [2020-10-09 18:30:05,659 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-09 18:30:05,665 INFO L80 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 215 events. 13/215 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 513 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 109. Up to 4 conditions per place. [2020-10-09 18:30:05,665 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 157 transitions, 336 flow [2020-10-09 18:30:05,673 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 146 transitions, 310 flow [2020-10-09 18:30:05,696 INFO L129 PetriNetUnfolder]: 1/91 cut-off events. [2020-10-09 18:30:05,697 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 18:30:05,697 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 18:30:05,698 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 18:30:05,699 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 18:30:05,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 18:30:05,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1491282841, now seen corresponding path program 1 times [2020-10-09 18:30:05,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 18:30:05,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631450025] [2020-10-09 18:30:05,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-09 18:30:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 18:30:05,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-09 18:30:05,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 18:30:06,013 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-09 18:30:06,014 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 18:30:06,022 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 18:30:06,022 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 18:30:06,022 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-10-09 18:30:06,069 INFO L350 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2020-10-09 18:30:06,070 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2020-10-09 18:30:06,071 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 18:30:06,079 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 18:30:06,079 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 18:30:06,080 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2020-10-09 18:30:06,113 INFO L350 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2020-10-09 18:30:06,114 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 14 [2020-10-09 18:30:06,116 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 18:30:06,118 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 18:30:06,118 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 18:30:06,118 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:32, output treesize:5 [2020-10-09 18:30:06,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:30:06,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 18:30:06,186 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 18:30:06,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:30:06,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631450025] [2020-10-09 18:30:06,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 18:30:06,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 7 [2020-10-09 18:30:06,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124989748] [2020-10-09 18:30:06,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-09 18:30:06,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 18:30:06,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-09 18:30:06,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-09 18:30:07,361 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 157 [2020-10-09 18:30:07,364 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 146 transitions, 310 flow. Second operand 7 states. [2020-10-09 18:30:07,364 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 18:30:07,364 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 157 [2020-10-09 18:30:07,366 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 18:30:07,881 INFO L129 PetriNetUnfolder]: 436/1387 cut-off events. [2020-10-09 18:30:07,881 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2020-10-09 18:30:07,888 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2226 conditions, 1387 events. 436/1387 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 10084 event pairs, 178 based on Foata normal form. 48/1423 useless extension candidates. Maximal degree in co-relation 2058. Up to 538 conditions per place. [2020-10-09 18:30:07,898 INFO L132 encePairwiseOnDemand]: 139/157 looper letters, 65 selfloop transitions, 41 changer transitions 0/205 dead transitions. [2020-10-09 18:30:07,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 205 transitions, 640 flow [2020-10-09 18:30:07,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-09 18:30:07,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-09 18:30:07,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1625 transitions. [2020-10-09 18:30:07,921 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7393084622383985 [2020-10-09 18:30:07,922 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1625 transitions. [2020-10-09 18:30:07,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1625 transitions. [2020-10-09 18:30:07,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 18:30:07,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1625 transitions. [2020-10-09 18:30:07,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-10-09 18:30:07,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 15 states. [2020-10-09 18:30:07,946 INFO L81 ComplementDD]: Finished complementDD. Result 15 states. [2020-10-09 18:30:07,948 INFO L185 Difference]: Start difference. First operand has 144 places, 146 transitions, 310 flow. Second operand 14 states and 1625 transitions. [2020-10-09 18:30:07,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 205 transitions, 640 flow [2020-10-09 18:30:07,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 205 transitions, 628 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-09 18:30:07,961 INFO L241 Difference]: Finished difference. Result has 157 places, 201 transitions, 581 flow [2020-10-09 18:30:07,964 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=581, PETRI_PLACES=157, PETRI_TRANSITIONS=201} [2020-10-09 18:30:07,965 INFO L341 CegarLoopForPetriNet]: 144 programPoint places, 13 predicate places. [2020-10-09 18:30:07,965 INFO L481 AbstractCegarLoop]: Abstraction has has 157 places, 201 transitions, 581 flow [2020-10-09 18:30:07,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-09 18:30:07,966 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 18:30:07,966 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 18:30:08,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-09 18:30:08,187 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 18:30:08,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 18:30:08,188 INFO L82 PathProgramCache]: Analyzing trace with hash -75883119, now seen corresponding path program 1 times [2020-10-09 18:30:08,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 18:30:08,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300726627] [2020-10-09 18:30:08,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-09 18:30:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 18:30:08,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-09 18:30:08,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 18:30:08,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:30:08,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 18:30:08,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:30:08,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300726627] [2020-10-09 18:30:08,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 18:30:08,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-09 18:30:08,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945337229] [2020-10-09 18:30:08,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 18:30:08,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 18:30:08,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 18:30:08,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-09 18:30:08,411 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 157 [2020-10-09 18:30:08,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 201 transitions, 581 flow. Second operand 5 states. [2020-10-09 18:30:08,412 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 18:30:08,412 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 157 [2020-10-09 18:30:08,412 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 18:30:08,578 INFO L129 PetriNetUnfolder]: 209/840 cut-off events. [2020-10-09 18:30:08,579 INFO L130 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2020-10-09 18:30:08,582 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1362 conditions, 840 events. 209/840 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 5207 event pairs, 32 based on Foata normal form. 1/831 useless extension candidates. Maximal degree in co-relation 1223. Up to 167 conditions per place. [2020-10-09 18:30:08,587 INFO L132 encePairwiseOnDemand]: 152/157 looper letters, 8 selfloop transitions, 4 changer transitions 0/204 dead transitions. [2020-10-09 18:30:08,587 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 204 transitions, 611 flow [2020-10-09 18:30:08,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-09 18:30:08,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-09 18:30:08,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 865 transitions. [2020-10-09 18:30:08,591 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9182590233545648 [2020-10-09 18:30:08,591 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 865 transitions. [2020-10-09 18:30:08,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 865 transitions. [2020-10-09 18:30:08,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 18:30:08,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 865 transitions. [2020-10-09 18:30:08,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-09 18:30:08,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-09 18:30:08,595 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-09 18:30:08,595 INFO L185 Difference]: Start difference. First operand has 157 places, 201 transitions, 581 flow. Second operand 6 states and 865 transitions. [2020-10-09 18:30:08,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 204 transitions, 611 flow [2020-10-09 18:30:08,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 204 transitions, 611 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-09 18:30:08,605 INFO L241 Difference]: Finished difference. Result has 166 places, 204 transitions, 610 flow [2020-10-09 18:30:08,606 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=581, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=610, PETRI_PLACES=166, PETRI_TRANSITIONS=204} [2020-10-09 18:30:08,607 INFO L341 CegarLoopForPetriNet]: 144 programPoint places, 22 predicate places. [2020-10-09 18:30:08,607 INFO L481 AbstractCegarLoop]: Abstraction has has 166 places, 204 transitions, 610 flow [2020-10-09 18:30:08,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 18:30:08,607 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 18:30:08,607 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 18:30:08,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-09 18:30:08,821 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 18:30:08,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 18:30:08,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1088735114, now seen corresponding path program 1 times [2020-10-09 18:30:08,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 18:30:08,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029209250] [2020-10-09 18:30:08,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-09 18:30:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 18:30:08,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-09 18:30:08,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 18:30:08,938 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-09 18:30:08,938 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 18:30:08,940 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 18:30:08,941 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 18:30:08,941 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-10-09 18:30:08,951 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2020-10-09 18:30:08,952 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 18:30:08,954 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 18:30:08,954 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 18:30:08,954 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:3 [2020-10-09 18:30:08,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:30:08,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 18:30:08,996 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 18:30:09,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:30:09,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029209250] [2020-10-09 18:30:09,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 18:30:09,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2020-10-09 18:30:09,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876358050] [2020-10-09 18:30:09,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-09 18:30:09,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 18:30:09,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-09 18:30:09,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-09 18:30:09,921 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 157 [2020-10-09 18:30:09,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 204 transitions, 610 flow. Second operand 6 states. [2020-10-09 18:30:09,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 18:30:09,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 157 [2020-10-09 18:30:09,923 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 18:30:10,363 INFO L129 PetriNetUnfolder]: 581/1683 cut-off events. [2020-10-09 18:30:10,364 INFO L130 PetriNetUnfolder]: For 465/465 co-relation queries the response was YES. [2020-10-09 18:30:10,372 INFO L80 FinitePrefix]: Finished finitePrefix Result has 3764 conditions, 1683 events. 581/1683 cut-off events. For 465/465 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 12425 event pairs, 178 based on Foata normal form. 27/1702 useless extension candidates. Maximal degree in co-relation 3708. Up to 706 conditions per place. [2020-10-09 18:30:10,381 INFO L132 encePairwiseOnDemand]: 148/157 looper letters, 73 selfloop transitions, 26 changer transitions 66/265 dead transitions. [2020-10-09 18:30:10,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 265 transitions, 1172 flow [2020-10-09 18:30:10,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-09 18:30:10,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-09 18:30:10,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1062 transitions. [2020-10-09 18:30:10,385 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7515923566878981 [2020-10-09 18:30:10,386 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1062 transitions. [2020-10-09 18:30:10,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1062 transitions. [2020-10-09 18:30:10,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 18:30:10,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1062 transitions. [2020-10-09 18:30:10,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-09 18:30:10,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-09 18:30:10,392 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-09 18:30:10,392 INFO L185 Difference]: Start difference. First operand has 166 places, 204 transitions, 610 flow. Second operand 9 states and 1062 transitions. [2020-10-09 18:30:10,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 265 transitions, 1172 flow [2020-10-09 18:30:10,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 265 transitions, 1171 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-09 18:30:10,402 INFO L241 Difference]: Finished difference. Result has 180 places, 195 transitions, 698 flow [2020-10-09 18:30:10,403 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=698, PETRI_PLACES=180, PETRI_TRANSITIONS=195} [2020-10-09 18:30:10,403 INFO L341 CegarLoopForPetriNet]: 144 programPoint places, 36 predicate places. [2020-10-09 18:30:10,403 INFO L481 AbstractCegarLoop]: Abstraction has has 180 places, 195 transitions, 698 flow [2020-10-09 18:30:10,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-09 18:30:10,404 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 18:30:10,404 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 18:30:10,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-09 18:30:10,619 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 18:30:10,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 18:30:10,619 INFO L82 PathProgramCache]: Analyzing trace with hash 49978714, now seen corresponding path program 1 times [2020-10-09 18:30:10,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 18:30:10,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705731595] [2020-10-09 18:30:10,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-09 18:30:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 18:30:10,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-09 18:30:10,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 18:30:10,752 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-09 18:30:10,753 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 18:30:10,755 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 18:30:10,755 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 18:30:10,755 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-10-09 18:30:10,774 INFO L350 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2020-10-09 18:30:10,774 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2020-10-09 18:30:10,775 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 18:30:10,780 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 18:30:10,780 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 18:30:10,780 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2020-10-09 18:30:10,796 INFO L350 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2020-10-09 18:30:10,796 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 10 [2020-10-09 18:30:10,799 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 18:30:10,801 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 18:30:10,801 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 18:30:10,802 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:28, output treesize:3 [2020-10-09 18:30:10,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:30:10,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 18:30:10,846 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 18:30:10,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:30:10,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705731595] [2020-10-09 18:30:10,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 18:30:10,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 7 [2020-10-09 18:30:10,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044501583] [2020-10-09 18:30:10,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-09 18:30:10,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 18:30:10,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-09 18:30:10,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-09 18:30:11,904 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 157 [2020-10-09 18:30:11,905 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 195 transitions, 698 flow. Second operand 7 states. [2020-10-09 18:30:11,905 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 18:30:11,905 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 157 [2020-10-09 18:30:11,905 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 18:30:12,530 INFO L129 PetriNetUnfolder]: 653/1862 cut-off events. [2020-10-09 18:30:12,530 INFO L130 PetriNetUnfolder]: For 6298/6298 co-relation queries the response was YES. [2020-10-09 18:30:12,538 INFO L80 FinitePrefix]: Finished finitePrefix Result has 6256 conditions, 1862 events. 653/1862 cut-off events. For 6298/6298 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 14268 event pairs, 134 based on Foata normal form. 17/1875 useless extension candidates. Maximal degree in co-relation 6127. Up to 877 conditions per place. [2020-10-09 18:30:12,554 INFO L132 encePairwiseOnDemand]: 143/157 looper letters, 120 selfloop transitions, 42 changer transitions 0/260 dead transitions. [2020-10-09 18:30:12,554 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 260 transitions, 1632 flow [2020-10-09 18:30:12,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-09 18:30:12,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-09 18:30:12,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1635 transitions. [2020-10-09 18:30:12,559 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7438580527752502 [2020-10-09 18:30:12,559 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1635 transitions. [2020-10-09 18:30:12,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1635 transitions. [2020-10-09 18:30:12,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 18:30:12,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1635 transitions. [2020-10-09 18:30:12,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-10-09 18:30:12,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 15 states. [2020-10-09 18:30:12,567 INFO L81 ComplementDD]: Finished complementDD. Result 15 states. [2020-10-09 18:30:12,568 INFO L185 Difference]: Start difference. First operand has 180 places, 195 transitions, 698 flow. Second operand 14 states and 1635 transitions. [2020-10-09 18:30:12,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 260 transitions, 1632 flow [2020-10-09 18:30:12,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 260 transitions, 1484 flow, removed 61 selfloop flow, removed 9 redundant places. [2020-10-09 18:30:12,582 INFO L241 Difference]: Finished difference. Result has 175 places, 256 transitions, 1330 flow [2020-10-09 18:30:12,583 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1330, PETRI_PLACES=175, PETRI_TRANSITIONS=256} [2020-10-09 18:30:12,583 INFO L341 CegarLoopForPetriNet]: 144 programPoint places, 31 predicate places. [2020-10-09 18:30:12,583 INFO L481 AbstractCegarLoop]: Abstraction has has 175 places, 256 transitions, 1330 flow [2020-10-09 18:30:12,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-09 18:30:12,583 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 18:30:12,584 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 18:30:12,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-09 18:30:12,804 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 18:30:12,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 18:30:12,804 INFO L82 PathProgramCache]: Analyzing trace with hash -814931924, now seen corresponding path program 1 times [2020-10-09 18:30:12,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 18:30:12,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812843492] [2020-10-09 18:30:12,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-09 18:30:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 18:30:12,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-09 18:30:12,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 18:30:12,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:30:12,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 18:30:12,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:30:12,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812843492] [2020-10-09 18:30:12,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 18:30:12,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-09 18:30:12,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754251479] [2020-10-09 18:30:12,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 18:30:12,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 18:30:12,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 18:30:12,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-09 18:30:12,988 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 157 [2020-10-09 18:30:12,989 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 256 transitions, 1330 flow. Second operand 5 states. [2020-10-09 18:30:12,989 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 18:30:12,989 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 157 [2020-10-09 18:30:12,989 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 18:30:13,135 INFO L129 PetriNetUnfolder]: 217/827 cut-off events. [2020-10-09 18:30:13,135 INFO L130 PetriNetUnfolder]: For 1910/1934 co-relation queries the response was YES. [2020-10-09 18:30:13,139 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2279 conditions, 827 events. 217/827 cut-off events. For 1910/1934 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5215 event pairs, 36 based on Foata normal form. 0/811 useless extension candidates. Maximal degree in co-relation 2264. Up to 233 conditions per place. [2020-10-09 18:30:13,145 INFO L132 encePairwiseOnDemand]: 152/157 looper letters, 4 selfloop transitions, 4 changer transitions 0/181 dead transitions. [2020-10-09 18:30:13,145 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 181 transitions, 978 flow [2020-10-09 18:30:13,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-09 18:30:13,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-09 18:30:13,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2020-10-09 18:30:13,148 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9076433121019108 [2020-10-09 18:30:13,148 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 855 transitions. [2020-10-09 18:30:13,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 855 transitions. [2020-10-09 18:30:13,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 18:30:13,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 855 transitions. [2020-10-09 18:30:13,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-09 18:30:13,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-09 18:30:13,152 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-09 18:30:13,153 INFO L185 Difference]: Start difference. First operand has 175 places, 256 transitions, 1330 flow. Second operand 6 states and 855 transitions. [2020-10-09 18:30:13,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 181 transitions, 978 flow [2020-10-09 18:30:13,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 181 transitions, 562 flow, removed 208 selfloop flow, removed 4 redundant places. [2020-10-09 18:30:13,164 INFO L241 Difference]: Finished difference. Result has 147 places, 181 transitions, 554 flow [2020-10-09 18:30:13,165 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=554, PETRI_PLACES=147, PETRI_TRANSITIONS=181} [2020-10-09 18:30:13,165 INFO L341 CegarLoopForPetriNet]: 144 programPoint places, 3 predicate places. [2020-10-09 18:30:13,165 INFO L481 AbstractCegarLoop]: Abstraction has has 147 places, 181 transitions, 554 flow [2020-10-09 18:30:13,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 18:30:13,165 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 18:30:13,165 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 18:30:13,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-09 18:30:13,378 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 18:30:13,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 18:30:13,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1803011973, now seen corresponding path program 1 times [2020-10-09 18:30:13,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 18:30:13,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189800659] [2020-10-09 18:30:13,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-09 18:30:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 18:30:13,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-09 18:30:13,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 18:30:13,484 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-09 18:30:13,485 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 18:30:13,487 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 18:30:13,487 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 18:30:13,487 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-10-09 18:30:13,496 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-10-09 18:30:13,497 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 18:30:13,499 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 18:30:13,499 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 18:30:13,499 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2020-10-09 18:30:13,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:30:13,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 18:30:13,536 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 18:30:13,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:30:13,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189800659] [2020-10-09 18:30:13,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 18:30:13,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2020-10-09 18:30:13,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085979374] [2020-10-09 18:30:13,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-09 18:30:13,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 18:30:13,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-09 18:30:13,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-09 18:30:14,148 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 157 [2020-10-09 18:30:14,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 181 transitions, 554 flow. Second operand 6 states. [2020-10-09 18:30:14,149 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 18:30:14,149 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 157 [2020-10-09 18:30:14,149 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 18:30:14,561 INFO L129 PetriNetUnfolder]: 545/1586 cut-off events. [2020-10-09 18:30:14,562 INFO L130 PetriNetUnfolder]: For 419/421 co-relation queries the response was YES. [2020-10-09 18:30:14,567 INFO L80 FinitePrefix]: Finished finitePrefix Result has 3544 conditions, 1586 events. 545/1586 cut-off events. For 419/421 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 11411 event pairs, 84 based on Foata normal form. 27/1609 useless extension candidates. Maximal degree in co-relation 3532. Up to 555 conditions per place. [2020-10-09 18:30:14,579 INFO L132 encePairwiseOnDemand]: 144/157 looper letters, 94 selfloop transitions, 75 changer transitions 0/261 dead transitions. [2020-10-09 18:30:14,579 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 261 transitions, 1208 flow [2020-10-09 18:30:14,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-09 18:30:14,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-09 18:30:14,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1407 transitions. [2020-10-09 18:30:14,586 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7468152866242038 [2020-10-09 18:30:14,586 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1407 transitions. [2020-10-09 18:30:14,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1407 transitions. [2020-10-09 18:30:14,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 18:30:14,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1407 transitions. [2020-10-09 18:30:14,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-09 18:30:14,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-09 18:30:14,596 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-09 18:30:14,596 INFO L185 Difference]: Start difference. First operand has 147 places, 181 transitions, 554 flow. Second operand 12 states and 1407 transitions. [2020-10-09 18:30:14,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 261 transitions, 1208 flow [2020-10-09 18:30:14,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 261 transitions, 1201 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-09 18:30:14,609 INFO L241 Difference]: Finished difference. Result has 163 places, 228 transitions, 1051 flow [2020-10-09 18:30:14,610 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1051, PETRI_PLACES=163, PETRI_TRANSITIONS=228} [2020-10-09 18:30:14,610 INFO L341 CegarLoopForPetriNet]: 144 programPoint places, 19 predicate places. [2020-10-09 18:30:14,610 INFO L481 AbstractCegarLoop]: Abstraction has has 163 places, 228 transitions, 1051 flow [2020-10-09 18:30:14,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-09 18:30:14,611 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 18:30:14,611 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 18:30:14,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-09 18:30:14,826 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 18:30:14,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 18:30:14,827 INFO L82 PathProgramCache]: Analyzing trace with hash -137910178, now seen corresponding path program 1 times [2020-10-09 18:30:14,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 18:30:14,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061686997] [2020-10-09 18:30:14,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-09 18:30:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 18:30:14,959 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 18:30:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 18:30:15,020 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 18:30:15,089 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 18:30:15,090 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 18:30:15,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-09 18:30:15,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 06:30:15 BasicIcfg [2020-10-09 18:30:15,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 18:30:15,421 INFO L168 Benchmark]: Toolchain (without parser) took 11980.39 ms. Allocated memory was 242.7 MB in the beginning and 588.3 MB in the end (delta: 345.5 MB). Free memory was 195.4 MB in the beginning and 376.2 MB in the end (delta: -180.8 MB). Peak memory consumption was 164.7 MB. Max. memory is 14.2 GB. [2020-10-09 18:30:15,422 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 242.7 MB. Free memory is still 219.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 18:30:15,424 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1223.51 ms. Allocated memory was 242.7 MB in the beginning and 345.5 MB in the end (delta: 102.8 MB). Free memory was 195.4 MB in the beginning and 307.4 MB in the end (delta: -112.0 MB). Peak memory consumption was 109.3 MB. Max. memory is 14.2 GB. [2020-10-09 18:30:15,425 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.87 ms. Allocated memory is still 345.5 MB. Free memory was 307.4 MB in the beginning and 303.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 14.2 GB. [2020-10-09 18:30:15,428 INFO L168 Benchmark]: Boogie Preprocessor took 54.69 ms. Allocated memory is still 345.5 MB. Free memory was 303.8 MB in the beginning and 300.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 14.2 GB. [2020-10-09 18:30:15,429 INFO L168 Benchmark]: RCFGBuilder took 630.60 ms. Allocated memory is still 345.5 MB. Free memory was 300.1 MB in the beginning and 253.1 MB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 14.2 GB. [2020-10-09 18:30:15,430 INFO L168 Benchmark]: TraceAbstraction took 9988.05 ms. Allocated memory was 345.5 MB in the beginning and 588.3 MB in the end (delta: 242.7 MB). Free memory was 253.1 MB in the beginning and 376.2 MB in the end (delta: -123.0 MB). Peak memory consumption was 119.7 MB. Max. memory is 14.2 GB. [2020-10-09 18:30:15,439 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 242.7 MB. Free memory is still 219.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 1223.51 ms. Allocated memory was 242.7 MB in the beginning and 345.5 MB in the end (delta: 102.8 MB). Free memory was 195.4 MB in the beginning and 307.4 MB in the end (delta: -112.0 MB). Peak memory consumption was 109.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 70.87 ms. Allocated memory is still 345.5 MB. Free memory was 307.4 MB in the beginning and 303.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 54.69 ms. Allocated memory is still 345.5 MB. Free memory was 303.8 MB in the beginning and 300.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 630.60 ms. Allocated memory is still 345.5 MB. Free memory was 300.1 MB in the beginning and 253.1 MB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 14.2 GB. * TraceAbstraction took 9988.05 ms. Allocated memory was 345.5 MB in the beginning and 588.3 MB in the end (delta: 242.7 MB). Free memory was 253.1 MB in the beginning and 376.2 MB in the end (delta: -123.0 MB). Peak memory consumption was 119.7 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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; VAL [t1={2:0}, t2={34:0}] [L1731] 0 return 0; VAL [t1={2:0}, t2={34:0}] [L1737] 0 int ret = my_drv_init(); VAL [t1={2:0}, t2={34:0}] [L1738] COND TRUE 0 ret==0 VAL [t1={2:0}, t2={34:0}] [L1739] 0 int probe_ret; VAL [t1={2:0}, t2={34:0}] [L1740] 0 struct my_data data; VAL [t1={2:0}, t2={34:0}] [L1706] 0 struct device *d = &data->dev; VAL [t1={2:0}, t2={34:0}] [L1708] 0 data->shared.a = 0 VAL [t1={2:0}, t2={34:0}] [L1709] 0 data->shared.b = 0 VAL [t1={2:0}, t2={34:0}] [L1710] 0 int res = __VERIFIER_nondet_int(); VAL [t1={2:0}, t2={34:0}] [L1711] COND FALSE 0 !(\read(res)) VAL [t1={2:0}, t2={34:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={45:24}, t1={2:0}, t2={34:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [arg={45:24}, t1={2:0}, t2={34:0}] [L1715] 0 return 0; VAL [arg={45:24}, t1={2:0}, t2={34:0}] [L1741] 0 probe_ret = my_drv_probe(&data) VAL [arg={45:24}, t1={2:0}, t2={34:0}] [L1742] COND TRUE 0 probe_ret==0 VAL [arg={45:24}, t1={2:0}, t2={34:0}] [L1721] 0 void *status; VAL [arg={45:24}, t1={2:0}, t2={34:0}] [L1722] 0 data->shared.a = 3 VAL [arg={45:24}, t1={2:0}, t2={34:0}] [L1723] 0 data->shared.b = 3 VAL [arg={45:24}, t1={2:0}, t2={34:0}] [L1696] 1 struct device *dev = (struct device*)arg; VAL [arg={45:24}, arg={45:24}, dev={45:24}, t1={2:0}, t2={34:0}] [L1697] 1 struct my_data *data; VAL [arg={45:24}, arg={45:24}, dev={45:24}, t1={2:0}, t2={34:0}] [L1698] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); VAL [__mptr={45:24}, arg={45:24}, arg={45:24}, dev={45:24}, t1={2:0}, t2={34:0}] [L1698] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={45:24}, arg={45:24}, arg={45:24}, data={45:0}, dev={45:24}, t1={2:0}, t2={34:0}] [L1700] 1 data->shared.a = 1 VAL [__mptr={45:24}, arg={45:24}, arg={45:24}, data={45:0}, dev={45:24}, t1={2:0}, t2={34:0}] [L1724] 0 data->shared.a VAL [__mptr={45:24}, arg={45:24}, arg={45:24}, data={45:0}, dev={45:24}, t1={2:0}, t2={34:0}] [L1682] COND TRUE 0 !expression VAL [__mptr={45:24}, arg={45:24}, arg={45:24}, data={45:0}, dev={45:24}, t1={2:0}, t2={34:0}] [L1682] 0 __VERIFIER_error() VAL [__mptr={45:24}, arg={45:24}, arg={45:24}, data={45:0}, dev={45:24}, t1={2:0}, t2={34:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 132 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 9.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 123 SDtfs, 686 SDslu, 1155 SDs, 0 SdLazy, 1366 SolverSat, 123 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 650 GetRequests, 576 SyntacticMatches, 16 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1330occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 376 NumberOfCodeBlocks, 376 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 616 ConstructedInterpolants, 0 QuantifiedInterpolants, 56578 SizeOfPredicates, 29 NumberOfNonLiveVariables, 785 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...