/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread/bigshot_p.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 14:16:20,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 14:16:20,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 14:16:20,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 14:16:20,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 14:16:20,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 14:16:20,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 14:16:20,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 14:16:20,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 14:16:20,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 14:16:20,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 14:16:20,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 14:16:20,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 14:16:20,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 14:16:20,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 14:16:20,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 14:16:20,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 14:16:20,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 14:16:20,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 14:16:20,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 14:16:20,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 14:16:20,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 14:16:20,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 14:16:20,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 14:16:20,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 14:16:20,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 14:16:20,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 14:16:20,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 14:16:20,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 14:16:20,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 14:16:20,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 14:16:20,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 14:16:20,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 14:16:20,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 14:16:20,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 14:16:20,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 14:16:20,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 14:16:20,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 14:16:20,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 14:16:20,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 14:16:20,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 14:16:20,331 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 14:16:20,373 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 14:16:20,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 14:16:20,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 14:16:20,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 14:16:20,374 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 14:16:20,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 14:16:20,375 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 14:16:20,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 14:16:20,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 14:16:20,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 14:16:20,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 14:16:20,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 14:16:20,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 14:16:20,378 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 14:16:20,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 14:16:20,378 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 14:16:20,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 14:16:20,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 14:16:20,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 14:16:20,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 14:16:20,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 14:16:20,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 14:16:20,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 14:16:20,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 14:16:20,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 14:16:20,381 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-09 14:16:20,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 14:16:20,381 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-09 14:16:20,381 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-09 14:16:20,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 14:16:20,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 14:16:20,736 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 14:16:20,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 14:16:20,741 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 14:16:20,741 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 14:16:20,742 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/bigshot_p.i [2020-10-09 14:16:20,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be6a1817d/06545bef606a49a9a05a1e10dea9d6a2/FLAG533fe58d0 [2020-10-09 14:16:21,351 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 14:16:21,351 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_p.i [2020-10-09 14:16:21,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be6a1817d/06545bef606a49a9a05a1e10dea9d6a2/FLAG533fe58d0 [2020-10-09 14:16:21,627 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be6a1817d/06545bef606a49a9a05a1e10dea9d6a2 [2020-10-09 14:16:21,635 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 14:16:21,636 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 14:16:21,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 14:16:21,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 14:16:21,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 14:16:21,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 02:16:21" (1/1) ... [2020-10-09 14:16:21,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f0cf70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:16:21, skipping insertion in model container [2020-10-09 14:16:21,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 02:16:21" (1/1) ... [2020-10-09 14:16:21,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 14:16:21,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 14:16:22,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 14:16:22,281 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 14:16:22,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 14:16:22,518 INFO L208 MainTranslator]: Completed translation [2020-10-09 14:16:22,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:16:22 WrapperNode [2020-10-09 14:16:22,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 14:16:22,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 14:16:22,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 14:16:22,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 14:16:22,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:16:22" (1/1) ... [2020-10-09 14:16:22,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:16:22" (1/1) ... [2020-10-09 14:16:22,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 14:16:22,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 14:16:22,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 14:16:22,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 14:16:22,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:16:22" (1/1) ... [2020-10-09 14:16:22,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:16:22" (1/1) ... [2020-10-09 14:16:22,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:16:22" (1/1) ... [2020-10-09 14:16:22,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:16:22" (1/1) ... [2020-10-09 14:16:22,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:16:22" (1/1) ... [2020-10-09 14:16:22,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:16:22" (1/1) ... [2020-10-09 14:16:22,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:16:22" (1/1) ... [2020-10-09 14:16:22,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 14:16:22,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 14:16:22,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 14:16:22,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 14:16:22,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:16:22" (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 14:16:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 14:16:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 14:16:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-09 14:16:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-09 14:16:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-09 14:16:22,687 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-09 14:16:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-09 14:16:22,687 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-09 14:16:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 14:16:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-09 14:16:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 14:16:22,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 14:16:22,690 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 14:16:23,081 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 14:16:23,082 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-09 14:16:23,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 02:16:23 BoogieIcfgContainer [2020-10-09 14:16:23,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 14:16:23,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 14:16:23,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 14:16:23,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 14:16:23,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 02:16:21" (1/3) ... [2020-10-09 14:16:23,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53379d2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 02:16:23, skipping insertion in model container [2020-10-09 14:16:23,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:16:22" (2/3) ... [2020-10-09 14:16:23,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53379d2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 02:16:23, skipping insertion in model container [2020-10-09 14:16:23,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 02:16:23" (3/3) ... [2020-10-09 14:16:23,097 INFO L111 eAbstractionObserver]: Analyzing ICFG bigshot_p.i [2020-10-09 14:16:23,111 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 14:16:23,121 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-09 14:16:23,122 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 14:16:23,154 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,155 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,155 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,156 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,157 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,157 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,157 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#Ultimate.meminit_#ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,157 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#Ultimate.meminit_#product| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,157 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#Ultimate.meminit_#sizeOfFields| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,158 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#Ultimate.meminit_#amountOfFields| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,158 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#Ultimate.meminit_#ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,158 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#Ultimate.meminit_#ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,158 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,159 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,159 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,159 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,160 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,160 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,161 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,161 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,161 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,161 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,162 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_src.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,162 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_dest.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,162 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_src.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,162 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_dest.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,163 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,163 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,163 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~offset12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,164 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,164 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~offset12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,164 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_src.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,164 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_src.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,164 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~offset12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,165 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,165 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,165 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~offset12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,165 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_dest.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,166 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_dest.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,166 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,166 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_dest.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,166 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_dest.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,167 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,167 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,167 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,167 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,168 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,168 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~strcpy~res4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,168 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~strcpy~res4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,168 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~offset12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,169 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~offset12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,169 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~strcpy~res4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,169 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~strcpy~res4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,172 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#Ultimate.meminit_#product| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,174 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,174 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#Ultimate.meminit_#sizeOfFields| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,175 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#Ultimate.meminit_#ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,175 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,175 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#Ultimate.meminit_#amountOfFields| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,175 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#Ultimate.meminit_#ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,180 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,181 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_src.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,181 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,181 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~offset12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,182 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,182 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_dest.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,182 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,182 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~strcpy~res4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,183 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_dest.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,183 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,183 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,183 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~strcpy~res4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,184 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_src.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,184 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:16:23,210 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-09 14:16:23,233 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 14:16:23,233 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 14:16:23,233 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 14:16:23,234 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 14:16:23,234 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 14:16:23,234 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 14:16:23,234 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 14:16:23,234 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 14:16:23,249 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 72 transitions, 166 flow [2020-10-09 14:16:23,297 INFO L129 PetriNetUnfolder]: 6/72 cut-off events. [2020-10-09 14:16:23,297 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-09 14:16:23,302 INFO L80 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 72 events. 6/72 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 45. Up to 3 conditions per place. [2020-10-09 14:16:23,302 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 72 transitions, 166 flow [2020-10-09 14:16:23,309 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 59 transitions, 136 flow [2020-10-09 14:16:23,332 INFO L129 PetriNetUnfolder]: 5/60 cut-off events. [2020-10-09 14:16:23,332 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-09 14:16:23,332 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:16:23,333 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] [2020-10-09 14:16:23,334 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:16:23,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:16:23,340 INFO L82 PathProgramCache]: Analyzing trace with hash 867763907, now seen corresponding path program 1 times [2020-10-09 14:16:23,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:16:23,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969439635] [2020-10-09 14:16:23,356 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 14:16:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:16:23,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-09 14:16:23,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:16:23,589 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 11 treesize of output 7 [2020-10-09 14:16:23,590 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 14:16:23,599 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 14:16:23,600 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 14:16:23,600 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2020-10-09 14:16:23,637 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 15 treesize of output 7 [2020-10-09 14:16:23,639 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 14:16:23,650 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 14:16:23,651 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 14:16:23,652 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:18, output treesize:7 [2020-10-09 14:16:23,687 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 14:16:23,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:16:23,724 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 14:16:23,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969439635] [2020-10-09 14:16:23,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:16:23,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-10-09 14:16:23,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042890469] [2020-10-09 14:16:23,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-09 14:16:23,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:16:23,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-09 14:16:23,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-09 14:16:24,114 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 72 [2020-10-09 14:16:24,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 59 transitions, 136 flow. Second operand 7 states. [2020-10-09 14:16:24,117 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:16:24,117 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 72 [2020-10-09 14:16:24,118 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:16:24,211 INFO L129 PetriNetUnfolder]: 14/143 cut-off events. [2020-10-09 14:16:24,211 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2020-10-09 14:16:24,213 INFO L80 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 143 events. 14/143 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 507 event pairs, 1 based on Foata normal form. 11/147 useless extension candidates. Maximal degree in co-relation 109. Up to 20 conditions per place. [2020-10-09 14:16:24,215 INFO L132 encePairwiseOnDemand]: 64/72 looper letters, 9 selfloop transitions, 8 changer transitions 1/66 dead transitions. [2020-10-09 14:16:24,215 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 66 transitions, 186 flow [2020-10-09 14:16:24,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-09 14:16:24,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-09 14:16:24,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 378 transitions. [2020-10-09 14:16:24,233 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.875 [2020-10-09 14:16:24,234 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 378 transitions. [2020-10-09 14:16:24,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 378 transitions. [2020-10-09 14:16:24,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:16:24,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 378 transitions. [2020-10-09 14:16:24,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-09 14:16:24,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-09 14:16:24,253 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-09 14:16:24,255 INFO L185 Difference]: Start difference. First operand has 60 places, 59 transitions, 136 flow. Second operand 6 states and 378 transitions. [2020-10-09 14:16:24,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 66 transitions, 186 flow [2020-10-09 14:16:24,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 66 transitions, 174 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-09 14:16:24,267 INFO L241 Difference]: Finished difference. Result has 64 places, 64 transitions, 176 flow [2020-10-09 14:16:24,270 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=176, PETRI_PLACES=64, PETRI_TRANSITIONS=64} [2020-10-09 14:16:24,271 INFO L341 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2020-10-09 14:16:24,271 INFO L481 AbstractCegarLoop]: Abstraction has has 64 places, 64 transitions, 176 flow [2020-10-09 14:16:24,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-09 14:16:24,272 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:16:24,272 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:16:24,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-09 14:16:24,492 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:16:24,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:16:24,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1476936145, now seen corresponding path program 2 times [2020-10-09 14:16:24,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:16:24,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116382547] [2020-10-09 14:16:24,495 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 14:16:24,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-09 14:16:24,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-09 14:16:24,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-09 14:16:24,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:16:24,599 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 14:16:24,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:16:24,619 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 14:16:24,628 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 14:16:24,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116382547] [2020-10-09 14:16:24,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:16:24,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2020-10-09 14:16:24,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101883095] [2020-10-09 14:16:24,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-09 14:16:24,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:16:24,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-09 14:16:24,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-09 14:16:24,801 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 72 [2020-10-09 14:16:24,802 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 64 transitions, 176 flow. Second operand 6 states. [2020-10-09 14:16:24,802 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:16:24,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 72 [2020-10-09 14:16:24,803 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:16:24,911 INFO L129 PetriNetUnfolder]: 8/159 cut-off events. [2020-10-09 14:16:24,911 INFO L130 PetriNetUnfolder]: For 20/21 co-relation queries the response was YES. [2020-10-09 14:16:24,912 INFO L80 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 159 events. 8/159 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 672 event pairs, 0 based on Foata normal form. 5/156 useless extension candidates. Maximal degree in co-relation 187. Up to 21 conditions per place. [2020-10-09 14:16:24,913 INFO L132 encePairwiseOnDemand]: 62/72 looper letters, 10 selfloop transitions, 2 changer transitions 10/73 dead transitions. [2020-10-09 14:16:24,913 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 73 transitions, 238 flow [2020-10-09 14:16:24,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-09 14:16:24,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-09 14:16:24,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 530 transitions. [2020-10-09 14:16:24,917 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8179012345679012 [2020-10-09 14:16:24,918 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 530 transitions. [2020-10-09 14:16:24,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 530 transitions. [2020-10-09 14:16:24,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:16:24,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 530 transitions. [2020-10-09 14:16:24,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-09 14:16:24,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-09 14:16:24,929 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-09 14:16:24,929 INFO L185 Difference]: Start difference. First operand has 64 places, 64 transitions, 176 flow. Second operand 9 states and 530 transitions. [2020-10-09 14:16:24,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 73 transitions, 238 flow [2020-10-09 14:16:24,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 73 transitions, 233 flow, removed 1 selfloop flow, removed 2 redundant places. [2020-10-09 14:16:24,935 INFO L241 Difference]: Finished difference. Result has 78 places, 63 transitions, 197 flow [2020-10-09 14:16:24,936 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=197, PETRI_PLACES=78, PETRI_TRANSITIONS=63} [2020-10-09 14:16:24,937 INFO L341 CegarLoopForPetriNet]: 60 programPoint places, 18 predicate places. [2020-10-09 14:16:24,937 INFO L481 AbstractCegarLoop]: Abstraction has has 78 places, 63 transitions, 197 flow [2020-10-09 14:16:24,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-09 14:16:24,937 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:16:24,938 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] [2020-10-09 14:16:25,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-09 14:16:25,158 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:16:25,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:16:25,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1736776088, now seen corresponding path program 1 times [2020-10-09 14:16:25,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:16:25,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394590839] [2020-10-09 14:16:25,161 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 14:16:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 14:16:25,249 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 14:16:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 14:16:25,287 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 14:16:25,378 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 14:16:25,378 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 14:16:25,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-09 14:16:25,630 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,631 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,632 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,632 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,633 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,633 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,634 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,634 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,634 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,635 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,635 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,636 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,636 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,637 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,637 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,638 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,638 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,638 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,639 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,639 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,640 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,640 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,641 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,641 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,641 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,642 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,642 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,643 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,643 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,644 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,644 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,644 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,645 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,645 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,646 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,646 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,646 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,647 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,647 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,648 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,648 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,649 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,649 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,649 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,650 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,650 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,650 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,651 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,651 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,651 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,652 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,652 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,652 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,653 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,653 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,654 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled [2020-10-09 14:16:25,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 02:16:25 BasicIcfg [2020-10-09 14:16:25,680 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 14:16:25,683 INFO L168 Benchmark]: Toolchain (without parser) took 4046.14 ms. Allocated memory was 247.5 MB in the beginning and 368.1 MB in the end (delta: 120.6 MB). Free memory was 200.6 MB in the beginning and 316.0 MB in the end (delta: -115.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 14.2 GB. [2020-10-09 14:16:25,683 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 247.5 MB. Free memory is still 221.3 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 14:16:25,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 883.14 ms. Allocated memory was 247.5 MB in the beginning and 303.6 MB in the end (delta: 56.1 MB). Free memory was 200.6 MB in the beginning and 218.7 MB in the end (delta: -18.1 MB). Peak memory consumption was 48.3 MB. Max. memory is 14.2 GB. [2020-10-09 14:16:25,685 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.55 ms. Allocated memory is still 303.6 MB. Free memory was 218.7 MB in the beginning and 216.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 14:16:25,686 INFO L168 Benchmark]: Boogie Preprocessor took 35.75 ms. Allocated memory is still 303.6 MB. Free memory was 216.2 MB in the beginning and 213.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 14:16:25,687 INFO L168 Benchmark]: RCFGBuilder took 459.86 ms. Allocated memory is still 303.6 MB. Free memory was 213.7 MB in the beginning and 189.3 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 14.2 GB. [2020-10-09 14:16:25,688 INFO L168 Benchmark]: TraceAbstraction took 2595.19 ms. Allocated memory was 303.6 MB in the beginning and 368.1 MB in the end (delta: 64.5 MB). Free memory was 189.3 MB in the beginning and 316.0 MB in the end (delta: -126.7 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 14:16:25,692 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 247.5 MB. Free memory is still 221.3 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 883.14 ms. Allocated memory was 247.5 MB in the beginning and 303.6 MB in the end (delta: 56.1 MB). Free memory was 200.6 MB in the beginning and 218.7 MB in the end (delta: -18.1 MB). Peak memory consumption was 48.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 66.55 ms. Allocated memory is still 303.6 MB. Free memory was 218.7 MB in the beginning and 216.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 35.75 ms. Allocated memory is still 303.6 MB. Free memory was 216.2 MB in the beginning and 213.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 459.86 ms. Allocated memory is still 303.6 MB. Free memory was 213.7 MB in the beginning and 189.3 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2595.19 ms. Allocated memory was 303.6 MB in the beginning and 368.1 MB in the end (delta: 64.5 MB). Free memory was 189.3 MB in the beginning and 316.0 MB in the end (delta: -126.7 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1088]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1089] 0 char *v; VAL [v={0:0}] [L1102] 0 pthread_t t1, t2; VAL [v={0:0}] [L1103] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [v={0:0}] [L1104] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [v={0:0}] [L1097] COND FALSE 2 !(\read(*v)) VAL [v={0:0}] [L1092] 1 v = calloc(8, sizeof(char)) VAL [v={107:0}] [L1093] 1 return 0; VAL [v={107:0}] [L1105] 0 \read(t1) VAL [v={107:0}] [L1105] FCALL, JOIN 1 pthread_join(t1, 0) VAL [v={107:0}] [L1106] 0 \read(t2) VAL [v={107:0}] [L1098] 2 return 0; VAL [v={107:0}] [L1106] FCALL, JOIN 2 pthread_join(t2, 0) VAL [v={107:0}] [L1107] 0 !v || v[0] == 'B' VAL [v={107:0}] [L1107] EXPR 0 v[0] VAL [v={107:0}] [L1107] 0 !v || v[0] == 'B' VAL [v={107:0}] [L1088] COND TRUE 0 !expression VAL [v={107:0}] [L1088] 0 __VERIFIER_error() VAL [v={107:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 66 locations, 1 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: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 83 SDslu, 81 SDs, 0 SdLazy, 147 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 140 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 19608 SizeOfPredicates, 10 NumberOfNonLiveVariables, 238 ConjunctsInSsa, 12 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...