/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_3-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 19:01:41,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 19:01:41,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 19:01:41,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 19:01:41,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 19:01:41,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 19:01:41,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 19:01:41,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 19:01:41,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 19:01:41,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 19:01:41,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 19:01:41,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 19:01:41,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 19:01:41,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 19:01:41,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 19:01:41,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 19:01:41,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 19:01:41,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 19:01:41,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 19:01:41,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 19:01:41,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 19:01:41,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 19:01:41,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 19:01:41,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 19:01:41,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 19:01:41,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 19:01:41,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 19:01:41,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 19:01:41,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 19:01:41,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 19:01:41,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 19:01:41,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 19:01:41,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 19:01:41,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 19:01:41,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 19:01:41,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 19:01:41,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 19:01:41,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 19:01:41,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 19:01:41,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 19:01:41,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 19:01:41,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 19:01:41,209 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 19:01:41,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 19:01:41,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 19:01:41,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 19:01:41,211 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 19:01:41,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 19:01:41,211 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 19:01:41,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 19:01:41,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 19:01:41,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 19:01:41,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 19:01:41,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 19:01:41,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 19:01:41,213 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 19:01:41,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 19:01:41,213 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 19:01:41,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 19:01:41,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 19:01:41,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 19:01:41,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 19:01:41,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 19:01:41,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 19:01:41,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 19:01:41,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 19:01:41,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 19:01:41,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 19:01:41,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 19:01:41,215 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 19:01:41,215 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 19:01:41,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 19:01:41,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 19:01:41,511 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 19:01:41,515 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 19:01:41,516 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 19:01:41,517 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 19:01:41,518 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2020-10-11 19:01:41,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e99fd14/582d26e172234afeac0913a26a15c7d1/FLAGc9579c279 [2020-10-11 19:01:42,190 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 19:01:42,191 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2020-10-11 19:01:42,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e99fd14/582d26e172234afeac0913a26a15c7d1/FLAGc9579c279 [2020-10-11 19:01:42,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e99fd14/582d26e172234afeac0913a26a15c7d1 [2020-10-11 19:01:42,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 19:01:42,418 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 19:01:42,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 19:01:42,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 19:01:42,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 19:01:42,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:01:42" (1/1) ... [2020-10-11 19:01:42,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39816155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:01:42, skipping insertion in model container [2020-10-11 19:01:42,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:01:42" (1/1) ... [2020-10-11 19:01:42,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 19:01:42,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 19:01:43,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 19:01:43,476 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 19:01:43,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 19:01:43,949 INFO L208 MainTranslator]: Completed translation [2020-10-11 19:01:43,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:01:43 WrapperNode [2020-10-11 19:01:43,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 19:01:43,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 19:01:43,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 19:01:43,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 19:01:43,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:01:43" (1/1) ... [2020-10-11 19:01:44,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:01:43" (1/1) ... [2020-10-11 19:01:44,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 19:01:44,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 19:01:44,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 19:01:44,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 19:01:44,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:01:43" (1/1) ... [2020-10-11 19:01:44,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:01:43" (1/1) ... [2020-10-11 19:01:44,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:01:43" (1/1) ... [2020-10-11 19:01:44,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:01:43" (1/1) ... [2020-10-11 19:01:44,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:01:43" (1/1) ... [2020-10-11 19:01:44,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:01:43" (1/1) ... [2020-10-11 19:01:44,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:01:43" (1/1) ... [2020-10-11 19:01:44,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 19:01:44,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 19:01:44,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 19:01:44,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 19:01:44,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:01:43" (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 [2020-10-11 19:01:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 19:01:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-11 19:01:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-11 19:01:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-11 19:01:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 19:01:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 19:01:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-10-11 19:01:44,161 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-10-11 19:01:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 19:01:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 19:01:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-11 19:01:44,165 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 19:01:44,838 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 19:01:44,838 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-11 19:01:44,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:01:44 BoogieIcfgContainer [2020-10-11 19:01:44,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 19:01:44,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 19:01:44,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 19:01:44,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 19:01:44,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:01:42" (1/3) ... [2020-10-11 19:01:44,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1094c084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:01:44, skipping insertion in model container [2020-10-11 19:01:44,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:01:43" (2/3) ... [2020-10-11 19:01:44,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1094c084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:01:44, skipping insertion in model container [2020-10-11 19:01:44,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:01:44" (3/3) ... [2020-10-11 19:01:44,857 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2020-10-11 19:01:44,869 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 19:01:44,880 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-11 19:01:44,881 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 19:01:44,916 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,916 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,916 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,916 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,917 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,917 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,917 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,917 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,917 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,918 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,918 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,918 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,918 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,918 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,919 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,919 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,919 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,919 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,920 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,920 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,920 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,920 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,920 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,921 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,921 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,921 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,921 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,921 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,922 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,922 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,922 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,922 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,922 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,923 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,923 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,923 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,923 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,924 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,924 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,924 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,924 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,924 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,925 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,925 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,925 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,925 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,925 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,926 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,926 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,926 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,926 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,926 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,927 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,927 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,927 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,927 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,927 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,928 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,928 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,928 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,929 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,929 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,929 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,929 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,929 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,930 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,930 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,930 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,930 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,930 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,934 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,934 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,935 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,935 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,935 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,935 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,935 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,936 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,936 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,936 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,936 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,936 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,943 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,943 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,943 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,944 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,944 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,944 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,944 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,945 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,945 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,945 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,945 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,945 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:01:44,972 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-11 19:01:44,995 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 19:01:44,995 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 19:01:44,995 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 19:01:44,995 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 19:01:44,996 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 19:01:44,996 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 19:01:44,996 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 19:01:44,996 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 19:01:45,015 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 153 places, 157 transitions, 336 flow [2020-10-11 19:01:45,113 INFO L129 PetriNetUnfolder]: 11/195 cut-off events. [2020-10-11 19:01:45,113 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-11 19:01:45,123 INFO L80 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 195 events. 11/195 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 354 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 97. Up to 4 conditions per place. [2020-10-11 19:01:45,123 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 157 transitions, 336 flow [2020-10-11 19:01:45,141 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 146 transitions, 310 flow [2020-10-11 19:01:45,195 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2020-10-11 19:01:45,196 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 19:01:45,196 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:01:45,197 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] [2020-10-11 19:01:45,198 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]=== [2020-10-11 19:01:45,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:01:45,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1440046740, now seen corresponding path program 1 times [2020-10-11 19:01:45,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:01:45,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941343271] [2020-10-11 19:01:45,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:01:45,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:01:45,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:01:45,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941343271] [2020-10-11 19:01:45,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:01:45,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 19:01:45,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765045151] [2020-10-11 19:01:45,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 19:01:45,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:01:45,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 19:01:45,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 19:01:46,798 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 157 [2020-10-11 19:01:46,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 146 transitions, 310 flow. Second operand 6 states. [2020-10-11 19:01:46,802 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:01:46,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 157 [2020-10-11 19:01:46,803 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:01:47,437 INFO L129 PetriNetUnfolder]: 484/1555 cut-off events. [2020-10-11 19:01:47,437 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2020-10-11 19:01:47,447 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2469 conditions, 1555 events. 484/1555 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 11363 event pairs, 115 based on Foata normal form. 37/1530 useless extension candidates. Maximal degree in co-relation 2305. Up to 366 conditions per place. [2020-10-11 19:01:47,464 INFO L132 encePairwiseOnDemand]: 129/157 looper letters, 64 selfloop transitions, 48 changer transitions 0/208 dead transitions. [2020-10-11 19:01:47,465 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 208 transitions, 658 flow [2020-10-11 19:01:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-11 19:01:47,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-11 19:01:47,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1485 transitions. [2020-10-11 19:01:47,495 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7275845173934345 [2020-10-11 19:01:47,496 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1485 transitions. [2020-10-11 19:01:47,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1485 transitions. [2020-10-11 19:01:47,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:01:47,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1485 transitions. [2020-10-11 19:01:47,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-11 19:01:47,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-10-11 19:01:47,557 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-10-11 19:01:47,567 INFO L185 Difference]: Start difference. First operand has 144 places, 146 transitions, 310 flow. Second operand 13 states and 1485 transitions. [2020-10-11 19:01:47,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 208 transitions, 658 flow [2020-10-11 19:01:47,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 208 transitions, 646 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-11 19:01:47,591 INFO L241 Difference]: Finished difference. Result has 161 places, 180 transitions, 611 flow [2020-10-11 19:01:47,597 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=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=611, PETRI_PLACES=161, PETRI_TRANSITIONS=180} [2020-10-11 19:01:47,598 INFO L341 CegarLoopForPetriNet]: 144 programPoint places, 17 predicate places. [2020-10-11 19:01:47,598 INFO L481 AbstractCegarLoop]: Abstraction has has 161 places, 180 transitions, 611 flow [2020-10-11 19:01:47,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 19:01:47,599 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:01:47,599 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] [2020-10-11 19:01:47,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 19:01:47,601 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]=== [2020-10-11 19:01:47,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:01:47,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1545263509, now seen corresponding path program 1 times [2020-10-11 19:01:47,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:01:47,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729555220] [2020-10-11 19:01:47,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:01:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:01:47,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:01:47,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729555220] [2020-10-11 19:01:47,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:01:47,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 19:01:47,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186816610] [2020-10-11 19:01:47,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 19:01:47,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:01:47,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 19:01:47,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 19:01:48,659 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 157 [2020-10-11 19:01:48,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 180 transitions, 611 flow. Second operand 6 states. [2020-10-11 19:01:48,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:01:48,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 157 [2020-10-11 19:01:48,660 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:01:49,314 INFO L129 PetriNetUnfolder]: 661/2036 cut-off events. [2020-10-11 19:01:49,314 INFO L130 PetriNetUnfolder]: For 9509/9621 co-relation queries the response was YES. [2020-10-11 19:01:49,327 INFO L80 FinitePrefix]: Finished finitePrefix Result has 7126 conditions, 2036 events. 661/2036 cut-off events. For 9509/9621 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 15130 event pairs, 133 based on Foata normal form. 18/2016 useless extension candidates. Maximal degree in co-relation 6560. Up to 600 conditions per place. [2020-10-11 19:01:49,349 INFO L132 encePairwiseOnDemand]: 136/157 looper letters, 95 selfloop transitions, 54 changer transitions 0/247 dead transitions. [2020-10-11 19:01:49,350 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 247 transitions, 1609 flow [2020-10-11 19:01:49,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-11 19:01:49,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-11 19:01:49,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1554 transitions. [2020-10-11 19:01:49,357 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7070063694267515 [2020-10-11 19:01:49,357 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1554 transitions. [2020-10-11 19:01:49,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1554 transitions. [2020-10-11 19:01:49,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:01:49,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1554 transitions. [2020-10-11 19:01:49,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-10-11 19:01:49,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 15 states. [2020-10-11 19:01:49,368 INFO L81 ComplementDD]: Finished complementDD. Result 15 states. [2020-10-11 19:01:49,368 INFO L185 Difference]: Start difference. First operand has 161 places, 180 transitions, 611 flow. Second operand 14 states and 1554 transitions. [2020-10-11 19:01:49,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 247 transitions, 1609 flow [2020-10-11 19:01:49,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 247 transitions, 1609 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-11 19:01:49,392 INFO L241 Difference]: Finished difference. Result has 182 places, 220 transitions, 1238 flow [2020-10-11 19:01:49,393 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1238, PETRI_PLACES=182, PETRI_TRANSITIONS=220} [2020-10-11 19:01:49,394 INFO L341 CegarLoopForPetriNet]: 144 programPoint places, 38 predicate places. [2020-10-11 19:01:49,395 INFO L481 AbstractCegarLoop]: Abstraction has has 182 places, 220 transitions, 1238 flow [2020-10-11 19:01:49,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 19:01:49,395 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:01:49,395 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] [2020-10-11 19:01:49,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 19:01:49,400 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]=== [2020-10-11 19:01:49,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:01:49,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1496801726, now seen corresponding path program 1 times [2020-10-11 19:01:49,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:01:49,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533672140] [2020-10-11 19:01:49,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:01:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:01:49,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:01:49,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533672140] [2020-10-11 19:01:49,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:01:49,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 19:01:49,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168446900] [2020-10-11 19:01:49,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 19:01:49,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:01:49,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 19:01:49,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 19:01:50,459 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 157 [2020-10-11 19:01:50,460 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 220 transitions, 1238 flow. Second operand 6 states. [2020-10-11 19:01:50,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:01:50,461 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 157 [2020-10-11 19:01:50,461 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:01:51,340 INFO L129 PetriNetUnfolder]: 961/2980 cut-off events. [2020-10-11 19:01:51,341 INFO L130 PetriNetUnfolder]: For 46626/46746 co-relation queries the response was YES. [2020-10-11 19:01:51,356 INFO L80 FinitePrefix]: Finished finitePrefix Result has 15071 conditions, 2980 events. 961/2980 cut-off events. For 46626/46746 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 24517 event pairs, 127 based on Foata normal form. 44/2984 useless extension candidates. Maximal degree in co-relation 13787. Up to 898 conditions per place. [2020-10-11 19:01:51,391 INFO L132 encePairwiseOnDemand]: 133/157 looper letters, 120 selfloop transitions, 106 changer transitions 0/329 dead transitions. [2020-10-11 19:01:51,391 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 329 transitions, 3318 flow [2020-10-11 19:01:51,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-11 19:01:51,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-11 19:01:51,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1484 transitions. [2020-10-11 19:01:51,396 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7270945614894659 [2020-10-11 19:01:51,397 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1484 transitions. [2020-10-11 19:01:51,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1484 transitions. [2020-10-11 19:01:51,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:01:51,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1484 transitions. [2020-10-11 19:01:51,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-11 19:01:51,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-10-11 19:01:51,405 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-10-11 19:01:51,405 INFO L185 Difference]: Start difference. First operand has 182 places, 220 transitions, 1238 flow. Second operand 13 states and 1484 transitions. [2020-10-11 19:01:51,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 329 transitions, 3318 flow [2020-10-11 19:01:51,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 329 transitions, 2886 flow, removed 216 selfloop flow, removed 0 redundant places. [2020-10-11 19:01:51,444 INFO L241 Difference]: Finished difference. Result has 204 places, 287 transitions, 2275 flow [2020-10-11 19:01:51,444 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2275, PETRI_PLACES=204, PETRI_TRANSITIONS=287} [2020-10-11 19:01:51,445 INFO L341 CegarLoopForPetriNet]: 144 programPoint places, 60 predicate places. [2020-10-11 19:01:51,445 INFO L481 AbstractCegarLoop]: Abstraction has has 204 places, 287 transitions, 2275 flow [2020-10-11 19:01:51,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 19:01:51,445 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:01:51,445 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] [2020-10-11 19:01:51,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 19:01:51,446 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]=== [2020-10-11 19:01:51,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:01:51,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1766584548, now seen corresponding path program 1 times [2020-10-11 19:01:51,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:01:51,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135116284] [2020-10-11 19:01:51,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:01:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:01:51,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:01:51,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135116284] [2020-10-11 19:01:51,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:01:51,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 19:01:51,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015699334] [2020-10-11 19:01:51,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 19:01:51,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:01:51,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 19:01:51,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 19:01:52,590 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 157 [2020-10-11 19:01:52,591 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 287 transitions, 2275 flow. Second operand 6 states. [2020-10-11 19:01:52,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:01:52,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 157 [2020-10-11 19:01:52,592 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:01:53,637 INFO L129 PetriNetUnfolder]: 1100/3265 cut-off events. [2020-10-11 19:01:53,638 INFO L130 PetriNetUnfolder]: For 121121/121367 co-relation queries the response was YES. [2020-10-11 19:01:53,666 INFO L80 FinitePrefix]: Finished finitePrefix Result has 21771 conditions, 3265 events. 1100/3265 cut-off events. For 121121/121367 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 26989 event pairs, 129 based on Foata normal form. 34/3258 useless extension candidates. Maximal degree in co-relation 20234. Up to 879 conditions per place. [2020-10-11 19:01:53,723 INFO L132 encePairwiseOnDemand]: 138/157 looper letters, 144 selfloop transitions, 56 changer transitions 59/363 dead transitions. [2020-10-11 19:01:53,723 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 363 transitions, 4481 flow [2020-10-11 19:01:53,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-11 19:01:53,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-11 19:01:53,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1231 transitions. [2020-10-11 19:01:53,729 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7127967573827446 [2020-10-11 19:01:53,729 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1231 transitions. [2020-10-11 19:01:53,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1231 transitions. [2020-10-11 19:01:53,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:01:53,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1231 transitions. [2020-10-11 19:01:53,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-11 19:01:53,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-11 19:01:53,737 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-11 19:01:53,737 INFO L185 Difference]: Start difference. First operand has 204 places, 287 transitions, 2275 flow. Second operand 11 states and 1231 transitions. [2020-10-11 19:01:53,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 363 transitions, 4481 flow [2020-10-11 19:01:53,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 363 transitions, 3913 flow, removed 284 selfloop flow, removed 0 redundant places. [2020-10-11 19:01:53,860 INFO L241 Difference]: Finished difference. Result has 222 places, 292 transitions, 2312 flow [2020-10-11 19:01:53,861 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=1787, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2312, PETRI_PLACES=222, PETRI_TRANSITIONS=292} [2020-10-11 19:01:53,862 INFO L341 CegarLoopForPetriNet]: 144 programPoint places, 78 predicate places. [2020-10-11 19:01:53,862 INFO L481 AbstractCegarLoop]: Abstraction has has 222 places, 292 transitions, 2312 flow [2020-10-11 19:01:53,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 19:01:53,862 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:01:53,862 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] [2020-10-11 19:01:53,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 19:01:53,863 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]=== [2020-10-11 19:01:53,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:01:53,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1635292816, now seen corresponding path program 1 times [2020-10-11 19:01:53,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:01:53,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92080539] [2020-10-11 19:01:53,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:01:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 19:01:53,912 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 19:01:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 19:01:53,948 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 19:01:53,986 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 19:01:53,986 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 19:01:53,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 19:01:54,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:01:54 BasicIcfg [2020-10-11 19:01:54,172 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 19:01:54,175 INFO L168 Benchmark]: Toolchain (without parser) took 11756.36 ms. Allocated memory was 250.1 MB in the beginning and 557.8 MB in the end (delta: 307.8 MB). Free memory was 202.5 MB in the beginning and 454.3 MB in the end (delta: -251.8 MB). Peak memory consumption was 398.1 MB. Max. memory is 14.2 GB. [2020-10-11 19:01:54,175 INFO L168 Benchmark]: CDTParser took 1.63 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 19:01:54,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1531.32 ms. Allocated memory was 250.1 MB in the beginning and 352.8 MB in the end (delta: 102.8 MB). Free memory was 202.5 MB in the beginning and 312.8 MB in the end (delta: -110.3 MB). Peak memory consumption was 109.0 MB. Max. memory is 14.2 GB. [2020-10-11 19:01:54,177 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.57 ms. Allocated memory is still 352.8 MB. Free memory was 312.8 MB in the beginning and 309.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.2 GB. [2020-10-11 19:01:54,178 INFO L168 Benchmark]: Boogie Preprocessor took 48.40 ms. Allocated memory is still 352.8 MB. Free memory was 309.5 MB in the beginning and 306.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.2 GB. [2020-10-11 19:01:54,179 INFO L168 Benchmark]: RCFGBuilder took 749.05 ms. Allocated memory is still 352.8 MB. Free memory was 306.2 MB in the beginning and 257.3 MB in the end (delta: 48.9 MB). Peak memory consumption was 48.9 MB. Max. memory is 14.2 GB. [2020-10-11 19:01:54,180 INFO L168 Benchmark]: TraceAbstraction took 9324.87 ms. Allocated memory was 352.8 MB in the beginning and 557.8 MB in the end (delta: 205.0 MB). Free memory was 257.3 MB in the beginning and 454.3 MB in the end (delta: -197.0 MB). Peak memory consumption was 350.2 MB. Max. memory is 14.2 GB. [2020-10-11 19:01:54,185 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.63 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 1531.32 ms. Allocated memory was 250.1 MB in the beginning and 352.8 MB in the end (delta: 102.8 MB). Free memory was 202.5 MB in the beginning and 312.8 MB in the end (delta: -110.3 MB). Peak memory consumption was 109.0 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 91.57 ms. Allocated memory is still 352.8 MB. Free memory was 312.8 MB in the beginning and 309.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 48.40 ms. Allocated memory is still 352.8 MB. Free memory was 309.5 MB in the beginning and 306.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.2 GB. * RCFGBuilder took 749.05 ms. Allocated memory is still 352.8 MB. Free memory was 306.2 MB in the beginning and 257.3 MB in the end (delta: 48.9 MB). Peak memory consumption was 48.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 9324.87 ms. Allocated memory was 352.8 MB in the beginning and 557.8 MB in the end (delta: 205.0 MB). Free memory was 257.3 MB in the beginning and 454.3 MB in the end (delta: -197.0 MB). Peak memory consumption was 350.2 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={5:0}, t2={6:0}] [L1731] 0 return 0; VAL [t1={5:0}, t2={6:0}] [L1737] 0 int ret = my_drv_init(); VAL [t1={5:0}, t2={6:0}] [L1738] COND TRUE 0 ret==0 VAL [t1={5:0}, t2={6:0}] [L1739] 0 int probe_ret; VAL [t1={5:0}, t2={6:0}] [L1740] 0 struct my_data data; VAL [t1={5:0}, t2={6:0}] [L1706] 0 struct device *d = &data->dev; VAL [t1={5:0}, t2={6:0}] [L1708] 0 data->shared.a = 0 VAL [t1={5:0}, t2={6:0}] [L1709] 0 data->shared.b = 0 VAL [t1={5:0}, t2={6:0}] [L1710] 0 int res = __VERIFIER_nondet_int(); VAL [t1={5:0}, t2={6:0}] [L1711] COND FALSE 0 !(\read(res)) VAL [t1={5:0}, t2={6:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={2:24}, t1={5:0}, t2={6:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [arg={2:24}, t1={5:0}, t2={6:0}] [L1715] 0 data->shared.a = 3 VAL [arg={2:24}, t1={5:0}, t2={6:0}] [L1716] 0 data->shared.b = 3 VAL [arg={2:24}, t1={5:0}, t2={6:0}] [L1696] 1 struct device *dev = (struct device*)arg; VAL [arg={2:24}, arg={2:24}, dev={2:24}, t1={5:0}, t2={6:0}] [L1697] 1 struct my_data *data; VAL [arg={2:24}, arg={2:24}, dev={2:24}, t1={5:0}, t2={6:0}] [L1698] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); VAL [__mptr={2:24}, arg={2:24}, arg={2:24}, dev={2:24}, t1={5:0}, t2={6:0}] [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={2:24}, arg={2:24}, arg={2:24}, data={2:0}, dev={2:24}, t1={5:0}, t2={6:0}] [L1700] 1 data->shared.a = 1 VAL [__mptr={2:24}, arg={2:24}, arg={2:24}, data={2:0}, dev={2:24}, t1={5:0}, t2={6:0}] [L1717] 0 data->shared.a VAL [__mptr={2:24}, arg={2:24}, arg={2:24}, data={2:0}, dev={2:24}, t1={5:0}, t2={6:0}] [L1682] COND TRUE 0 !expression VAL [__mptr={2:24}, arg={2:24}, arg={2:24}, data={2:0}, dev={2:24}, t1={5:0}, t2={6:0}] [L1682] 0 __VERIFIER_error() VAL [__mptr={2:24}, arg={2:24}, arg={2:24}, data={2:0}, dev={2:24}, t1={5:0}, t2={6:0}] - 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: 8.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 339 SDtfs, 667 SDslu, 1180 SDs, 0 SdLazy, 1172 SolverSat, 161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2312occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 19290 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...