/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/stack_longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 16:52:45,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 16:52:45,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 16:52:45,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 16:52:45,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 16:52:45,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 16:52:45,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 16:52:45,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 16:52:45,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 16:52:45,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 16:52:45,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 16:52:45,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 16:52:45,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 16:52:45,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 16:52:45,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 16:52:45,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 16:52:45,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 16:52:45,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 16:52:45,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 16:52:45,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 16:52:45,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 16:52:45,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 16:52:45,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 16:52:45,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 16:52:45,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 16:52:45,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 16:52:45,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 16:52:45,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 16:52:45,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 16:52:45,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 16:52:45,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 16:52:45,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 16:52:45,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 16:52:45,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 16:52:45,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 16:52:45,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 16:52:45,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 16:52:45,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 16:52:45,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 16:52:45,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 16:52:45,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 16:52:45,379 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 16:52:45,415 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 16:52:45,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 16:52:45,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 16:52:45,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 16:52:45,418 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 16:52:45,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 16:52:45,418 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 16:52:45,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 16:52:45,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 16:52:45,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 16:52:45,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 16:52:45,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 16:52:45,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 16:52:45,420 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 16:52:45,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 16:52:45,421 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 16:52:45,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 16:52:45,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 16:52:45,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 16:52:45,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 16:52:45,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 16:52:45,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 16:52:45,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 16:52:45,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 16:52:45,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 16:52:45,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 16:52:45,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 16:52:45,423 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 16:52:45,423 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 16:52:45,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 16:52:45,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 16:52:45,702 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 16:52:45,706 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 16:52:45,707 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 16:52:45,707 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 16:52:45,708 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longest-1.i [2020-10-11 16:52:45,761 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2299f0fb2/df98f2afa0b04c149659cc7977afc48d/FLAGd6faaf401 [2020-10-11 16:52:46,238 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 16:52:46,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-1.i [2020-10-11 16:52:46,254 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2299f0fb2/df98f2afa0b04c149659cc7977afc48d/FLAGd6faaf401 [2020-10-11 16:52:46,565 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2299f0fb2/df98f2afa0b04c149659cc7977afc48d [2020-10-11 16:52:46,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 16:52:46,574 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 16:52:46,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 16:52:46,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 16:52:46,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 16:52:46,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:52:46" (1/1) ... [2020-10-11 16:52:46,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41b6f441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:46, skipping insertion in model container [2020-10-11 16:52:46,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:52:46" (1/1) ... [2020-10-11 16:52:46,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 16:52:46,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 16:52:47,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 16:52:47,141 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 16:52:47,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 16:52:47,362 INFO L208 MainTranslator]: Completed translation [2020-10-11 16:52:47,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:47 WrapperNode [2020-10-11 16:52:47,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 16:52:47,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 16:52:47,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 16:52:47,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 16:52:47,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:47" (1/1) ... [2020-10-11 16:52:47,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:47" (1/1) ... [2020-10-11 16:52:47,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 16:52:47,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 16:52:47,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 16:52:47,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 16:52:47,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:47" (1/1) ... [2020-10-11 16:52:47,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:47" (1/1) ... [2020-10-11 16:52:47,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:47" (1/1) ... [2020-10-11 16:52:47,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:47" (1/1) ... [2020-10-11 16:52:47,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:47" (1/1) ... [2020-10-11 16:52:47,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:47" (1/1) ... [2020-10-11 16:52:47,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:47" (1/1) ... [2020-10-11 16:52:47,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 16:52:47,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 16:52:47,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 16:52:47,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 16:52:47,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:47" (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 16:52:47,524 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-11 16:52:47,525 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-11 16:52:47,525 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-11 16:52:47,525 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-11 16:52:47,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 16:52:47,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 16:52:47,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-11 16:52:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 16:52:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-11 16:52:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-11 16:52:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 16:52:47,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 16:52:47,528 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 16:52:48,043 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 16:52:48,043 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-11 16:52:48,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:52:48 BoogieIcfgContainer [2020-10-11 16:52:48,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 16:52:48,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 16:52:48,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 16:52:48,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 16:52:48,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:52:46" (1/3) ... [2020-10-11 16:52:48,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14220ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:52:48, skipping insertion in model container [2020-10-11 16:52:48,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:47" (2/3) ... [2020-10-11 16:52:48,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14220ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:52:48, skipping insertion in model container [2020-10-11 16:52:48,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:52:48" (3/3) ... [2020-10-11 16:52:48,054 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2020-10-11 16:52:48,065 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 16:52:48,073 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-11 16:52:48,074 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 16:52:48,107 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,108 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,108 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,108 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,112 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,113 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,113 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,113 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,114 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,114 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,114 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,114 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,115 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,118 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,119 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,119 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,119 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,119 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,120 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,120 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,120 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,121 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,121 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,121 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,124 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,124 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,124 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,124 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,125 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,125 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,125 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,125 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,126 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,126 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,128 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,128 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,128 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,129 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,129 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,129 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,130 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,130 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,130 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,130 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,131 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,136 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,137 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,137 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,137 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,138 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,138 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,139 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,139 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,139 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,140 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,143 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,144 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,144 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,145 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,148 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,148 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,149 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,149 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,149 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,150 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,150 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,150 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,151 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,152 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,153 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,157 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,157 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,158 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,158 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,158 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,159 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,159 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,159 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,160 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,162 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,163 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,163 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,163 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,164 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,164 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,165 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,170 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,170 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,171 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,171 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,171 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,171 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,172 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,172 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,172 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,173 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,173 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,173 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,173 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,174 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,174 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,174 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,175 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,179 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,179 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,180 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,180 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,180 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,181 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,181 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,181 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,181 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,182 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,182 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,184 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,185 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,185 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,185 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,185 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,186 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,186 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,186 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,186 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,187 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,190 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,192 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,192 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,192 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,193 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,193 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,193 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,194 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,194 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,200 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,204 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,204 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,205 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,205 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,205 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,205 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,206 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,206 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,206 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,206 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,207 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,207 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,207 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,207 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,208 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,208 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,208 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,208 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,209 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,209 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,209 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,209 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,214 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,215 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,215 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,215 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,215 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,216 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,216 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,216 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,216 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,217 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,217 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,217 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,217 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,218 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,218 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,218 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,218 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,218 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,219 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:52:48,242 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-11 16:52:48,263 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 16:52:48,264 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 16:52:48,264 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 16:52:48,264 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 16:52:48,264 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 16:52:48,264 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 16:52:48,265 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 16:52:48,265 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 16:52:48,283 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-10-11 16:52:48,365 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-10-11 16:52:48,366 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-11 16:52:48,373 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 385 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-10-11 16:52:48,373 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 145 transitions, 312 flow [2020-10-11 16:52:48,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 133 transitions, 278 flow [2020-10-11 16:52:48,440 INFO L129 PetriNetUnfolder]: 6/115 cut-off events. [2020-10-11 16:52:48,440 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-11 16:52:48,440 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:52:48,442 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:52:48,442 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:52:48,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:52:48,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1797022071, now seen corresponding path program 1 times [2020-10-11 16:52:48,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:52:48,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104041289] [2020-10-11 16:52:48,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:52:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:48,785 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 16:52:48,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104041289] [2020-10-11 16:52:48,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:52:48,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:52:48,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580236122] [2020-10-11 16:52:48,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:52:48,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:52:48,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:52:48,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:52:48,884 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 145 [2020-10-11 16:52:48,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 133 transitions, 278 flow. Second operand 3 states. [2020-10-11 16:52:48,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:52:48,887 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 145 [2020-10-11 16:52:48,889 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:52:48,959 INFO L129 PetriNetUnfolder]: 14/254 cut-off events. [2020-10-11 16:52:48,960 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2020-10-11 16:52:48,964 INFO L80 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 254 events. 14/254 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 686 event pairs, 0 based on Foata normal form. 23/259 useless extension candidates. Maximal degree in co-relation 240. Up to 14 conditions per place. [2020-10-11 16:52:48,967 INFO L132 encePairwiseOnDemand]: 136/145 looper letters, 3 selfloop transitions, 3 changer transitions 0/130 dead transitions. [2020-10-11 16:52:48,967 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 130 transitions, 284 flow [2020-10-11 16:52:48,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:52:48,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 16:52:48,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 424 transitions. [2020-10-11 16:52:48,984 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9747126436781609 [2020-10-11 16:52:48,985 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 424 transitions. [2020-10-11 16:52:48,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 424 transitions. [2020-10-11 16:52:48,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:52:48,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 424 transitions. [2020-10-11 16:52:48,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 16:52:49,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 16:52:49,002 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 16:52:49,005 INFO L185 Difference]: Start difference. First operand has 129 places, 133 transitions, 278 flow. Second operand 3 states and 424 transitions. [2020-10-11 16:52:49,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 130 transitions, 284 flow [2020-10-11 16:52:49,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 130 transitions, 276 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-11 16:52:49,014 INFO L241 Difference]: Finished difference. Result has 128 places, 130 transitions, 279 flow [2020-10-11 16:52:49,017 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=128, PETRI_TRANSITIONS=130} [2020-10-11 16:52:49,018 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, -1 predicate places. [2020-10-11 16:52:49,018 INFO L481 AbstractCegarLoop]: Abstraction has has 128 places, 130 transitions, 279 flow [2020-10-11 16:52:49,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:52:49,018 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:52:49,019 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] [2020-10-11 16:52:49,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 16:52:49,019 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:52:49,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:52:49,020 INFO L82 PathProgramCache]: Analyzing trace with hash 506033560, now seen corresponding path program 1 times [2020-10-11 16:52:49,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:52:49,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064987712] [2020-10-11 16:52:49,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:52:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:49,112 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 16:52:49,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064987712] [2020-10-11 16:52:49,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:52:49,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:52:49,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154495387] [2020-10-11 16:52:49,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:52:49,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:52:49,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:52:49,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:52:49,140 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 145 [2020-10-11 16:52:49,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 130 transitions, 279 flow. Second operand 3 states. [2020-10-11 16:52:49,140 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:52:49,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 145 [2020-10-11 16:52:49,141 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:52:49,191 INFO L129 PetriNetUnfolder]: 16/288 cut-off events. [2020-10-11 16:52:49,191 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-11 16:52:49,194 INFO L80 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 288 events. 16/288 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 578 event pairs, 2 based on Foata normal form. 1/270 useless extension candidates. Maximal degree in co-relation 262. Up to 11 conditions per place. [2020-10-11 16:52:49,195 INFO L132 encePairwiseOnDemand]: 142/145 looper letters, 2 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2020-10-11 16:52:49,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 130 transitions, 284 flow [2020-10-11 16:52:49,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:52:49,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 16:52:49,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 416 transitions. [2020-10-11 16:52:49,198 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9563218390804598 [2020-10-11 16:52:49,198 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 416 transitions. [2020-10-11 16:52:49,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 416 transitions. [2020-10-11 16:52:49,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:52:49,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 416 transitions. [2020-10-11 16:52:49,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 16:52:49,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 16:52:49,203 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 16:52:49,203 INFO L185 Difference]: Start difference. First operand has 128 places, 130 transitions, 279 flow. Second operand 3 states and 416 transitions. [2020-10-11 16:52:49,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 130 transitions, 284 flow [2020-10-11 16:52:49,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 130 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 16:52:49,208 INFO L241 Difference]: Finished difference. Result has 130 places, 130 transitions, 284 flow [2020-10-11 16:52:49,208 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=130, PETRI_TRANSITIONS=130} [2020-10-11 16:52:49,209 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 1 predicate places. [2020-10-11 16:52:49,209 INFO L481 AbstractCegarLoop]: Abstraction has has 130 places, 130 transitions, 284 flow [2020-10-11 16:52:49,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:52:49,210 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:52:49,210 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:52:49,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 16:52:49,210 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:52:49,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:52:49,211 INFO L82 PathProgramCache]: Analyzing trace with hash -729952317, now seen corresponding path program 1 times [2020-10-11 16:52:49,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:52:49,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376758990] [2020-10-11 16:52:49,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:52:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:49,280 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 16:52:49,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376758990] [2020-10-11 16:52:49,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:52:49,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 16:52:49,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433330203] [2020-10-11 16:52:49,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 16:52:49,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:52:49,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 16:52:49,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 16:52:49,365 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 145 [2020-10-11 16:52:49,366 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 130 transitions, 284 flow. Second operand 4 states. [2020-10-11 16:52:49,366 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:52:49,366 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 145 [2020-10-11 16:52:49,366 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:52:49,440 INFO L129 PetriNetUnfolder]: 21/363 cut-off events. [2020-10-11 16:52:49,441 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-11 16:52:49,443 INFO L80 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 363 events. 21/363 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 958 event pairs, 3 based on Foata normal form. 2/342 useless extension candidates. Maximal degree in co-relation 351. Up to 14 conditions per place. [2020-10-11 16:52:49,445 INFO L132 encePairwiseOnDemand]: 140/145 looper letters, 7 selfloop transitions, 4 changer transitions 0/133 dead transitions. [2020-10-11 16:52:49,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 133 transitions, 312 flow [2020-10-11 16:52:49,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 16:52:49,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-11 16:52:49,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 540 transitions. [2020-10-11 16:52:49,448 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9310344827586207 [2020-10-11 16:52:49,448 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 540 transitions. [2020-10-11 16:52:49,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 540 transitions. [2020-10-11 16:52:49,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:52:49,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 540 transitions. [2020-10-11 16:52:49,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-11 16:52:49,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-11 16:52:49,452 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-11 16:52:49,452 INFO L185 Difference]: Start difference. First operand has 130 places, 130 transitions, 284 flow. Second operand 4 states and 540 transitions. [2020-10-11 16:52:49,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 133 transitions, 312 flow [2020-10-11 16:52:49,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 133 transitions, 310 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 16:52:49,457 INFO L241 Difference]: Finished difference. Result has 134 places, 133 transitions, 310 flow [2020-10-11 16:52:49,457 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=310, PETRI_PLACES=134, PETRI_TRANSITIONS=133} [2020-10-11 16:52:49,457 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 5 predicate places. [2020-10-11 16:52:49,458 INFO L481 AbstractCegarLoop]: Abstraction has has 134 places, 133 transitions, 310 flow [2020-10-11 16:52:49,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 16:52:49,458 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:52:49,458 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:52:49,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 16:52:49,459 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:52:49,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:52:49,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1678836827, now seen corresponding path program 1 times [2020-10-11 16:52:49,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:52:49,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509774812] [2020-10-11 16:52:49,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:52:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:49,593 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:52:49,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509774812] [2020-10-11 16:52:49,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789258309] [2020-10-11 16:52:49,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 16:52:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:49,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-11 16:52:49,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 16:52:49,835 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:52:49,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 16:52:49,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-11 16:52:49,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587397698] [2020-10-11 16:52:49,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 16:52:49,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:52:49,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 16:52:49,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-11 16:52:50,075 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 145 [2020-10-11 16:52:50,076 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 133 transitions, 310 flow. Second operand 7 states. [2020-10-11 16:52:50,076 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:52:50,077 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 145 [2020-10-11 16:52:50,077 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:52:50,195 INFO L129 PetriNetUnfolder]: 32/412 cut-off events. [2020-10-11 16:52:50,196 INFO L130 PetriNetUnfolder]: For 26/38 co-relation queries the response was YES. [2020-10-11 16:52:50,200 INFO L80 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 412 events. 32/412 cut-off events. For 26/38 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1238 event pairs, 2 based on Foata normal form. 1/386 useless extension candidates. Maximal degree in co-relation 476. Up to 35 conditions per place. [2020-10-11 16:52:50,205 INFO L132 encePairwiseOnDemand]: 139/145 looper letters, 10 selfloop transitions, 6 changer transitions 0/140 dead transitions. [2020-10-11 16:52:50,205 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 140 transitions, 360 flow [2020-10-11 16:52:50,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 16:52:50,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-11 16:52:50,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 809 transitions. [2020-10-11 16:52:50,209 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9298850574712644 [2020-10-11 16:52:50,209 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 809 transitions. [2020-10-11 16:52:50,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 809 transitions. [2020-10-11 16:52:50,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:52:50,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 809 transitions. [2020-10-11 16:52:50,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-11 16:52:50,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-11 16:52:50,214 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-11 16:52:50,214 INFO L185 Difference]: Start difference. First operand has 134 places, 133 transitions, 310 flow. Second operand 6 states and 809 transitions. [2020-10-11 16:52:50,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 140 transitions, 360 flow [2020-10-11 16:52:50,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 140 transitions, 358 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 16:52:50,219 INFO L241 Difference]: Finished difference. Result has 141 places, 137 transitions, 349 flow [2020-10-11 16:52:50,219 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=349, PETRI_PLACES=141, PETRI_TRANSITIONS=137} [2020-10-11 16:52:50,219 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 12 predicate places. [2020-10-11 16:52:50,219 INFO L481 AbstractCegarLoop]: Abstraction has has 141 places, 137 transitions, 349 flow [2020-10-11 16:52:50,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 16:52:50,220 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:52:50,220 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:52:50,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 16:52:50,435 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:52:50,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:52:50,435 INFO L82 PathProgramCache]: Analyzing trace with hash 42941256, now seen corresponding path program 1 times [2020-10-11 16:52:50,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:52:50,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677219943] [2020-10-11 16:52:50,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:52:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:50,514 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 16:52:50,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677219943] [2020-10-11 16:52:50,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:52:50,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:52:50,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876614180] [2020-10-11 16:52:50,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:52:50,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:52:50,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:52:50,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:52:50,566 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 145 [2020-10-11 16:52:50,566 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 137 transitions, 349 flow. Second operand 3 states. [2020-10-11 16:52:50,566 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:52:50,566 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 145 [2020-10-11 16:52:50,567 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:52:50,640 INFO L129 PetriNetUnfolder]: 16/444 cut-off events. [2020-10-11 16:52:50,640 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2020-10-11 16:52:50,642 INFO L80 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 444 events. 16/444 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1212 event pairs, 1 based on Foata normal form. 10/432 useless extension candidates. Maximal degree in co-relation 499. Up to 15 conditions per place. [2020-10-11 16:52:50,644 INFO L132 encePairwiseOnDemand]: 141/145 looper letters, 2 selfloop transitions, 4 changer transitions 0/137 dead transitions. [2020-10-11 16:52:50,644 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 137 transitions, 361 flow [2020-10-11 16:52:50,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:52:50,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 16:52:50,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2020-10-11 16:52:50,647 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9425287356321839 [2020-10-11 16:52:50,647 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 410 transitions. [2020-10-11 16:52:50,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 410 transitions. [2020-10-11 16:52:50,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:52:50,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 410 transitions. [2020-10-11 16:52:50,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 16:52:50,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 16:52:50,650 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 16:52:50,650 INFO L185 Difference]: Start difference. First operand has 141 places, 137 transitions, 349 flow. Second operand 3 states and 410 transitions. [2020-10-11 16:52:50,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 137 transitions, 361 flow [2020-10-11 16:52:50,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 137 transitions, 350 flow, removed 3 selfloop flow, removed 2 redundant places. [2020-10-11 16:52:50,658 INFO L241 Difference]: Finished difference. Result has 141 places, 137 transitions, 346 flow [2020-10-11 16:52:50,659 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=141, PETRI_TRANSITIONS=137} [2020-10-11 16:52:50,659 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 12 predicate places. [2020-10-11 16:52:50,659 INFO L481 AbstractCegarLoop]: Abstraction has has 141 places, 137 transitions, 346 flow [2020-10-11 16:52:50,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:52:50,660 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:52:50,660 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:52:50,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 16:52:50,661 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:52:50,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:52:50,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1133443641, now seen corresponding path program 1 times [2020-10-11 16:52:50,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:52:50,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233817035] [2020-10-11 16:52:50,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:52:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:50,814 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 16:52:50,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233817035] [2020-10-11 16:52:50,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:52:50,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 16:52:50,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493495772] [2020-10-11 16:52:50,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 16:52:50,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:52:50,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 16:52:50,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 16:52:51,187 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 145 [2020-10-11 16:52:51,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 137 transitions, 346 flow. Second operand 7 states. [2020-10-11 16:52:51,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:52:51,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 145 [2020-10-11 16:52:51,188 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:52:51,431 INFO L129 PetriNetUnfolder]: 36/655 cut-off events. [2020-10-11 16:52:51,431 INFO L130 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2020-10-11 16:52:51,434 INFO L80 FinitePrefix]: Finished finitePrefix Result has 939 conditions, 655 events. 36/655 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2191 event pairs, 2 based on Foata normal form. 2/629 useless extension candidates. Maximal degree in co-relation 539. Up to 45 conditions per place. [2020-10-11 16:52:51,436 INFO L132 encePairwiseOnDemand]: 134/145 looper letters, 26 selfloop transitions, 13 changer transitions 0/153 dead transitions. [2020-10-11 16:52:51,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 153 transitions, 472 flow [2020-10-11 16:52:51,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 16:52:51,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 16:52:51,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1136 transitions. [2020-10-11 16:52:51,443 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8704980842911877 [2020-10-11 16:52:51,443 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1136 transitions. [2020-10-11 16:52:51,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1136 transitions. [2020-10-11 16:52:51,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:52:51,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1136 transitions. [2020-10-11 16:52:51,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 16:52:51,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 16:52:51,453 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 16:52:51,453 INFO L185 Difference]: Start difference. First operand has 141 places, 137 transitions, 346 flow. Second operand 9 states and 1136 transitions. [2020-10-11 16:52:51,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 153 transitions, 472 flow [2020-10-11 16:52:51,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 153 transitions, 468 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 16:52:51,460 INFO L241 Difference]: Finished difference. Result has 153 places, 144 transitions, 428 flow [2020-10-11 16:52:51,460 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=428, PETRI_PLACES=153, PETRI_TRANSITIONS=144} [2020-10-11 16:52:51,461 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 24 predicate places. [2020-10-11 16:52:51,461 INFO L481 AbstractCegarLoop]: Abstraction has has 153 places, 144 transitions, 428 flow [2020-10-11 16:52:51,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 16:52:51,461 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:52:51,461 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:52:51,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 16:52:51,462 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:52:51,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:52:51,462 INFO L82 PathProgramCache]: Analyzing trace with hash -119096507, now seen corresponding path program 1 times [2020-10-11 16:52:51,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:52:51,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853844567] [2020-10-11 16:52:51,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:52:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:52:52,298 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 16:52:52,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853844567] [2020-10-11 16:52:52,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:52:52,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-11 16:52:52,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576772700] [2020-10-11 16:52:52,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-11 16:52:52,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:52:52,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-11 16:52:52,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2020-10-11 16:53:05,592 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 145 [2020-10-11 16:53:05,595 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 144 transitions, 428 flow. Second operand 20 states. [2020-10-11 16:53:05,595 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:53:05,595 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 145 [2020-10-11 16:53:05,595 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:53:06,901 INFO L129 PetriNetUnfolder]: 155/1466 cut-off events. [2020-10-11 16:53:06,902 INFO L130 PetriNetUnfolder]: For 168/168 co-relation queries the response was YES. [2020-10-11 16:53:06,907 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2407 conditions, 1466 events. 155/1466 cut-off events. For 168/168 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7507 event pairs, 15 based on Foata normal form. 2/1408 useless extension candidates. Maximal degree in co-relation 1426. Up to 237 conditions per place. [2020-10-11 16:53:06,913 INFO L132 encePairwiseOnDemand]: 123/145 looper letters, 95 selfloop transitions, 25 changer transitions 5/236 dead transitions. [2020-10-11 16:53:06,913 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 236 transitions, 870 flow [2020-10-11 16:53:06,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-11 16:53:06,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-11 16:53:06,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2186 transitions. [2020-10-11 16:53:06,920 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7537931034482759 [2020-10-11 16:53:06,920 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2186 transitions. [2020-10-11 16:53:06,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2186 transitions. [2020-10-11 16:53:06,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:53:06,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2186 transitions. [2020-10-11 16:53:06,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 21 states. [2020-10-11 16:53:06,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 21 states. [2020-10-11 16:53:06,932 INFO L81 ComplementDD]: Finished complementDD. Result 21 states. [2020-10-11 16:53:06,933 INFO L185 Difference]: Start difference. First operand has 153 places, 144 transitions, 428 flow. Second operand 20 states and 2186 transitions. [2020-10-11 16:53:06,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 236 transitions, 870 flow [2020-10-11 16:53:06,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 236 transitions, 864 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-11 16:53:06,941 INFO L241 Difference]: Finished difference. Result has 183 places, 166 transitions, 593 flow [2020-10-11 16:53:06,941 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=593, PETRI_PLACES=183, PETRI_TRANSITIONS=166} [2020-10-11 16:53:06,942 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 54 predicate places. [2020-10-11 16:53:06,942 INFO L481 AbstractCegarLoop]: Abstraction has has 183 places, 166 transitions, 593 flow [2020-10-11 16:53:06,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-11 16:53:06,942 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:53:06,942 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:06,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 16:53:06,943 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:53:06,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:53:06,943 INFO L82 PathProgramCache]: Analyzing trace with hash 279845071, now seen corresponding path program 2 times [2020-10-11 16:53:06,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:53:06,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248236863] [2020-10-11 16:53:06,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:53:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:53:07,896 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 16:53:07,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248236863] [2020-10-11 16:53:07,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:53:07,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-11 16:53:07,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494964501] [2020-10-11 16:53:07,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-11 16:53:07,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:53:07,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-11 16:53:07,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2020-10-11 16:53:24,149 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 145 [2020-10-11 16:53:24,151 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 166 transitions, 593 flow. Second operand 20 states. [2020-10-11 16:53:24,151 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:53:24,151 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 145 [2020-10-11 16:53:24,151 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:53:26,052 INFO L129 PetriNetUnfolder]: 179/1881 cut-off events. [2020-10-11 16:53:26,052 INFO L130 PetriNetUnfolder]: For 432/432 co-relation queries the response was YES. [2020-10-11 16:53:26,064 INFO L80 FinitePrefix]: Finished finitePrefix Result has 3529 conditions, 1881 events. 179/1881 cut-off events. For 432/432 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 11108 event pairs, 27 based on Foata normal form. 2/1842 useless extension candidates. Maximal degree in co-relation 1947. Up to 185 conditions per place. [2020-10-11 16:53:26,071 INFO L132 encePairwiseOnDemand]: 124/145 looper letters, 97 selfloop transitions, 37 changer transitions 5/250 dead transitions. [2020-10-11 16:53:26,071 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 250 transitions, 1163 flow [2020-10-11 16:53:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-11 16:53:26,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-11 16:53:26,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2186 transitions. [2020-10-11 16:53:26,078 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7537931034482759 [2020-10-11 16:53:26,078 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2186 transitions. [2020-10-11 16:53:26,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2186 transitions. [2020-10-11 16:53:26,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:53:26,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2186 transitions. [2020-10-11 16:53:26,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 21 states. [2020-10-11 16:53:26,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 21 states. [2020-10-11 16:53:26,089 INFO L81 ComplementDD]: Finished complementDD. Result 21 states. [2020-10-11 16:53:26,089 INFO L185 Difference]: Start difference. First operand has 183 places, 166 transitions, 593 flow. Second operand 20 states and 2186 transitions. [2020-10-11 16:53:26,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 250 transitions, 1163 flow [2020-10-11 16:53:26,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 250 transitions, 1158 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-11 16:53:26,099 INFO L241 Difference]: Finished difference. Result has 207 places, 180 transitions, 795 flow [2020-10-11 16:53:26,099 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=795, PETRI_PLACES=207, PETRI_TRANSITIONS=180} [2020-10-11 16:53:26,100 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 78 predicate places. [2020-10-11 16:53:26,100 INFO L481 AbstractCegarLoop]: Abstraction has has 207 places, 180 transitions, 795 flow [2020-10-11 16:53:26,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-11 16:53:26,100 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:53:26,100 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:26,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 16:53:26,101 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:53:26,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:53:26,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1792916809, now seen corresponding path program 2 times [2020-10-11 16:53:26,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:53:26,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804590968] [2020-10-11 16:53:26,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:53:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:53:26,215 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:53:26,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804590968] [2020-10-11 16:53:26,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366648921] [2020-10-11 16:53:26,216 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 16:53:26,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-11 16:53:26,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-11 16:53:26,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-11 16:53:26,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 16:53:26,368 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:53:26,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 16:53:26,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-11 16:53:26,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874267864] [2020-10-11 16:53:26,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-11 16:53:26,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:53:26,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-11 16:53:26,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-11 16:53:26,680 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 145 [2020-10-11 16:53:26,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 180 transitions, 795 flow. Second operand 9 states. [2020-10-11 16:53:26,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:53:26,682 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 145 [2020-10-11 16:53:26,682 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:53:27,016 INFO L129 PetriNetUnfolder]: 76/1573 cut-off events. [2020-10-11 16:53:27,016 INFO L130 PetriNetUnfolder]: For 603/603 co-relation queries the response was YES. [2020-10-11 16:53:27,027 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2713 conditions, 1573 events. 76/1573 cut-off events. For 603/603 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 8840 event pairs, 3 based on Foata normal form. 2/1543 useless extension candidates. Maximal degree in co-relation 1184. Up to 59 conditions per place. [2020-10-11 16:53:27,033 INFO L132 encePairwiseOnDemand]: 139/145 looper letters, 14 selfloop transitions, 10 changer transitions 0/188 dead transitions. [2020-10-11 16:53:27,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 188 transitions, 875 flow [2020-10-11 16:53:27,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 16:53:27,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 16:53:27,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1210 transitions. [2020-10-11 16:53:27,041 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9272030651340997 [2020-10-11 16:53:27,041 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1210 transitions. [2020-10-11 16:53:27,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1210 transitions. [2020-10-11 16:53:27,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:53:27,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1210 transitions. [2020-10-11 16:53:27,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 16:53:27,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 16:53:27,047 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 16:53:27,047 INFO L185 Difference]: Start difference. First operand has 207 places, 180 transitions, 795 flow. Second operand 9 states and 1210 transitions. [2020-10-11 16:53:27,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 188 transitions, 875 flow [2020-10-11 16:53:27,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 188 transitions, 836 flow, removed 10 selfloop flow, removed 10 redundant places. [2020-10-11 16:53:27,058 INFO L241 Difference]: Finished difference. Result has 208 places, 184 transitions, 816 flow [2020-10-11 16:53:27,058 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=816, PETRI_PLACES=208, PETRI_TRANSITIONS=184} [2020-10-11 16:53:27,058 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 79 predicate places. [2020-10-11 16:53:27,059 INFO L481 AbstractCegarLoop]: Abstraction has has 208 places, 184 transitions, 816 flow [2020-10-11 16:53:27,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-11 16:53:27,059 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:53:27,059 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:27,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 16:53:27,274 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:53:27,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:53:27,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1137087769, now seen corresponding path program 1 times [2020-10-11 16:53:27,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:53:27,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365548121] [2020-10-11 16:53:27,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:53:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 16:53:27,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 16:53:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 16:53:27,344 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 16:53:27,392 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 16:53:27,393 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 16:53:27,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 16:53:27,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 04:53:27 BasicIcfg [2020-10-11 16:53:27,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 16:53:27,558 INFO L168 Benchmark]: Toolchain (without parser) took 40980.20 ms. Allocated memory was 255.3 MB in the beginning and 656.9 MB in the end (delta: 401.6 MB). Free memory was 210.4 MB in the beginning and 349.9 MB in the end (delta: -139.5 MB). Peak memory consumption was 262.1 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:27,559 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 255.3 MB. Free memory was 233.4 MB in the beginning and 232.5 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. [2020-10-11 16:53:27,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.58 ms. Allocated memory was 255.3 MB in the beginning and 326.6 MB in the end (delta: 71.3 MB). Free memory was 209.6 MB in the beginning and 252.1 MB in the end (delta: -42.5 MB). Peak memory consumption was 38.8 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:27,561 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.80 ms. Allocated memory is still 326.6 MB. Free memory was 252.1 MB in the beginning and 249.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:27,564 INFO L168 Benchmark]: Boogie Preprocessor took 37.29 ms. Allocated memory is still 326.6 MB. Free memory was 249.5 MB in the beginning and 247.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:27,565 INFO L168 Benchmark]: RCFGBuilder took 587.96 ms. Allocated memory is still 326.6 MB. Free memory was 247.0 MB in the beginning and 213.8 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:27,569 INFO L168 Benchmark]: TraceAbstraction took 39505.93 ms. Allocated memory was 326.6 MB in the beginning and 656.9 MB in the end (delta: 330.3 MB). Free memory was 213.0 MB in the beginning and 349.9 MB in the end (delta: -136.9 MB). Peak memory consumption was 193.4 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:27,573 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 255.3 MB. Free memory was 233.4 MB in the beginning and 232.5 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 787.58 ms. Allocated memory was 255.3 MB in the beginning and 326.6 MB in the end (delta: 71.3 MB). Free memory was 209.6 MB in the beginning and 252.1 MB in the end (delta: -42.5 MB). Peak memory consumption was 38.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 56.80 ms. Allocated memory is still 326.6 MB. Free memory was 252.1 MB in the beginning and 249.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 37.29 ms. Allocated memory is still 326.6 MB. Free memory was 249.5 MB in the beginning and 247.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 587.96 ms. Allocated memory is still 326.6 MB. Free memory was 247.0 MB in the beginning and 213.8 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. * TraceAbstraction took 39505.93 ms. Allocated memory was 326.6 MB in the beginning and 656.9 MB in the end (delta: 330.3 MB). Free memory was 213.0 MB in the beginning and 349.9 MB in the end (delta: -136.9 MB). Peak memory consumption was 193.4 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 922]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L916] 0 static int top=0; VAL [top=0] [L917] 0 static unsigned int arr[(800)]; VAL [arr={6:0}, top=0] [L918] 0 pthread_mutex_t m; VAL [arr={6:0}, m={7:0}, top=0] [L919] 0 _Bool flag=(0); VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L1001] 0 pthread_t id1, id2; VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L1003] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L970] 1 int i; VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L971] 1 unsigned int tmp; VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L972] 1 i=0 VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L972] COND TRUE 1 i<(800) VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L975] 1 tmp = __VERIFIER_nondet_uint() VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L4] COND FALSE 1 !(!cond) VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L942] COND FALSE 1 !(top==(800)) VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L934] 1 return top; VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L949] 1 stack[get_top()] = x VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L926] 1 top++ VAL [arr={6:0}, flag=0, m={7:0}, top=1] [L952] 1 return 0; VAL [arr={6:0}, flag=0, m={7:0}, top=1] [L977] COND FALSE 1 !(push(arr,tmp)==(-1)) VAL [arr={6:0}, flag=0, m={7:0}, top=1] [L979] 1 flag=(1) VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L1004] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L986] 2 int i; VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L987] 2 i=0 VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L987] COND TRUE 2 i<(800) VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L990] COND TRUE 2 \read(flag) VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L934] 2 return top; VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L956] COND FALSE 2 !(get_top()==0) VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L930] 2 top-- VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L934] 2 return top; VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L964] EXPR 2 stack[get_top()] VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L964] 2 return stack[get_top()]; VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L992] COND FALSE 2 !(!(pop(arr)!=(-2))) VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L987] 2 i++ VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L987] COND TRUE 2 i<(800) VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L990] COND TRUE 2 \read(flag) VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L934] 2 return top; VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L956] COND TRUE 2 get_top()==0 VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L959] 2 return (-2); VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L992] COND TRUE 2 !(pop(arr)!=(-2)) VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L922] 2 __VERIFIER_error() VAL [arr={6:0}, flag=1, m={7:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 134 locations, 2 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: 39.1s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 35.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 823 SDtfs, 1298 SDslu, 6717 SDs, 0 SdLazy, 5710 SolverSat, 149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 314 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=816occurred in iteration=9, 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, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1034 NumberOfCodeBlocks, 1034 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 904 ConstructedInterpolants, 0 QuantifiedInterpolants, 698694 SizeOfPredicates, 8 NumberOfNonLiveVariables, 450 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 18/178 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...