/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 15:53:33,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 15:53:33,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 15:53:33,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 15:53:33,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 15:53:33,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 15:53:33,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 15:53:33,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 15:53:33,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 15:53:33,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 15:53:33,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 15:53:33,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 15:53:33,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 15:53:33,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 15:53:33,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 15:53:33,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 15:53:33,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 15:53:33,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 15:53:33,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 15:53:33,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 15:53:33,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 15:53:33,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 15:53:33,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 15:53:33,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 15:53:33,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 15:53:33,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 15:53:33,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 15:53:33,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 15:53:33,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 15:53:33,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 15:53:33,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 15:53:33,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 15:53:33,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 15:53:33,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 15:53:33,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 15:53:33,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 15:53:33,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-18 15:53:33,446 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 15:53:33,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 15:53:33,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 15:53:33,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 15:53:33,448 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 15:53:33,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 15:53:33,449 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 15:53:33,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 15:53:33,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 15:53:33,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 15:53:33,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 15:53:33,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 15:53:33,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 15:53:33,451 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 15:53:33,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 15:53:33,452 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 15:53:33,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 15:53:33,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 15:53:33,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 15:53:33,452 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 15:53:33,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 15:53:33,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 15:53:33,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 15:53:33,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 15:53:33,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 15:53:33,454 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 15:53:33,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 15:53:33,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 15:53:33,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 15:53:33,715 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 15:53:33,731 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 15:53:33,735 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 15:53:33,737 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 15:53:33,737 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 15:53:33,738 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2019-12-18 15:53:33,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c040f420b/0eef2aac24074234bc062a7e0ff111d5/FLAG2f3ccaa77 [2019-12-18 15:53:34,352 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 15:53:34,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2019-12-18 15:53:34,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c040f420b/0eef2aac24074234bc062a7e0ff111d5/FLAG2f3ccaa77 [2019-12-18 15:53:34,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c040f420b/0eef2aac24074234bc062a7e0ff111d5 [2019-12-18 15:53:34,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 15:53:34,635 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 15:53:34,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 15:53:34,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 15:53:34,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 15:53:34,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:53:34" (1/1) ... [2019-12-18 15:53:34,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f9fff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:53:34, skipping insertion in model container [2019-12-18 15:53:34,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:53:34" (1/1) ... [2019-12-18 15:53:34,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 15:53:34,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 15:53:35,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:53:35,148 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 15:53:35,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:53:35,252 INFO L208 MainTranslator]: Completed translation [2019-12-18 15:53:35,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:53:35 WrapperNode [2019-12-18 15:53:35,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 15:53:35,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 15:53:35,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 15:53:35,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 15:53:35,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:53:35" (1/1) ... [2019-12-18 15:53:35,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:53:35" (1/1) ... [2019-12-18 15:53:35,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 15:53:35,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 15:53:35,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 15:53:35,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 15:53:35,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:53:35" (1/1) ... [2019-12-18 15:53:35,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:53:35" (1/1) ... [2019-12-18 15:53:35,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:53:35" (1/1) ... [2019-12-18 15:53:35,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:53:35" (1/1) ... [2019-12-18 15:53:35,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:53:35" (1/1) ... [2019-12-18 15:53:35,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:53:35" (1/1) ... [2019-12-18 15:53:35,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:53:35" (1/1) ... [2019-12-18 15:53:35,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 15:53:35,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 15:53:35,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 15:53:35,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 15:53:35,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:53:35" (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 [2019-12-18 15:53:35,393 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 15:53:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 15:53:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 15:53:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 15:53:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 15:53:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 15:53:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 15:53:35,398 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 15:53:35,529 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 15:53:35,530 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 15:53:35,531 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2019-12-18 15:53:35,531 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-12-18 15:53:35,710 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 15:53:35,710 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-18 15:53:35,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:53:35 BoogieIcfgContainer [2019-12-18 15:53:35,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 15:53:35,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 15:53:35,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 15:53:35,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 15:53:35,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:53:34" (1/3) ... [2019-12-18 15:53:35,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edbaf5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:53:35, skipping insertion in model container [2019-12-18 15:53:35,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:53:35" (2/3) ... [2019-12-18 15:53:35,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edbaf5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:53:35, skipping insertion in model container [2019-12-18 15:53:35,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:53:35" (3/3) ... [2019-12-18 15:53:35,719 INFO L109 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf.i [2019-12-18 15:53:35,729 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 15:53:35,729 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 15:53:35,735 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 15:53:35,736 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 15:53:35,760 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:35,761 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:35,761 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:35,763 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:35,763 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:35,764 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:35,764 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:35,764 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:35,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:35,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:35,770 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:35,770 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:35,770 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:35,771 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:35,771 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:35,789 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-18 15:53:35,810 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:53:35,811 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:53:35,811 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:53:35,811 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:53:35,811 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:53:35,811 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:53:35,812 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:53:35,812 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:53:35,825 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 37 transitions [2019-12-18 15:53:35,827 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 37 places, 37 transitions [2019-12-18 15:53:35,862 INFO L126 PetriNetUnfolder]: 4/45 cut-off events. [2019-12-18 15:53:35,863 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:53:35,869 INFO L76 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 45 events. 4/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs. 5/43 useless extension candidates. Maximal degree in co-relation 26. Up to 4 conditions per place. [2019-12-18 15:53:35,872 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 37 places, 37 transitions [2019-12-18 15:53:35,889 INFO L126 PetriNetUnfolder]: 4/45 cut-off events. [2019-12-18 15:53:35,889 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:53:35,891 INFO L76 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 45 events. 4/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs. 5/43 useless extension candidates. Maximal degree in co-relation 26. Up to 4 conditions per place. [2019-12-18 15:53:35,894 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 340 [2019-12-18 15:53:35,897 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:53:36,918 INFO L206 etLargeBlockEncoding]: Checked pairs total: 212 [2019-12-18 15:53:36,918 INFO L214 etLargeBlockEncoding]: Total number of compositions: 32 [2019-12-18 15:53:36,922 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 9 places, 8 transitions [2019-12-18 15:53:36,930 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2019-12-18 15:53:36,932 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-18 15:53:36,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 15:53:36,939 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:53:36,939 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 15:53:36,940 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:53:36,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:53:36,946 INFO L82 PathProgramCache]: Analyzing trace with hash 5302540, now seen corresponding path program 1 times [2019-12-18 15:53:36,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:53:36,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50989121] [2019-12-18 15:53:36,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:53:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:53:37,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:53:37,181 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50989121] [2019-12-18 15:53:37,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:53:37,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 15:53:37,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094478461] [2019-12-18 15:53:37,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:53:37,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:53:37,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:53:37,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:53:37,216 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-12-18 15:53:37,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:53:37,237 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-12-18 15:53:37,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:53:37,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-18 15:53:37,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:53:37,268 INFO L225 Difference]: With dead ends: 7 [2019-12-18 15:53:37,269 INFO L226 Difference]: Without dead ends: 7 [2019-12-18 15:53:37,270 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:53:37,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-12-18 15:53:37,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-18 15:53:37,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-18 15:53:37,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2019-12-18 15:53:37,311 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 4 [2019-12-18 15:53:37,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:53:37,311 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2019-12-18 15:53:37,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:53:37,311 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2019-12-18 15:53:37,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-18 15:53:37,312 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:53:37,312 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-18 15:53:37,312 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:53:37,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:53:37,313 INFO L82 PathProgramCache]: Analyzing trace with hash 800720775, now seen corresponding path program 1 times [2019-12-18 15:53:37,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:53:37,314 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970698175] [2019-12-18 15:53:37,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:53:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:53:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:53:37,415 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:53:37,415 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:53:37,416 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:53:37,417 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-18 15:53:37,427 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,427 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,427 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,427 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,428 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,428 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,428 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,429 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,429 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,429 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,430 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,430 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,431 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,434 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,435 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,435 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,435 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,442 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,442 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,444 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,445 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,445 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,445 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,445 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,446 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,448 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,448 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,449 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,449 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,449 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:37,451 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 15:53:37,451 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:53:37,451 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:53:37,451 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:53:37,451 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:53:37,451 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:53:37,452 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:53:37,452 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:53:37,452 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:53:37,454 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 55 transitions [2019-12-18 15:53:37,454 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 55 places, 55 transitions [2019-12-18 15:53:37,484 INFO L126 PetriNetUnfolder]: 7/72 cut-off events. [2019-12-18 15:53:37,485 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:53:37,487 INFO L76 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 7/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs. 14/74 useless extension candidates. Maximal degree in co-relation 46. Up to 6 conditions per place. [2019-12-18 15:53:37,490 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 55 places, 55 transitions [2019-12-18 15:53:37,504 INFO L126 PetriNetUnfolder]: 7/72 cut-off events. [2019-12-18 15:53:37,504 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:53:37,506 INFO L76 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 7/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs. 14/74 useless extension candidates. Maximal degree in co-relation 46. Up to 6 conditions per place. [2019-12-18 15:53:37,509 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1292 [2019-12-18 15:53:37,510 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:53:38,151 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3904 [2019-12-18 15:53:38,151 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-18 15:53:38,152 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 31 transitions [2019-12-18 15:53:38,194 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 772 states. [2019-12-18 15:53:38,195 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states. [2019-12-18 15:53:38,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 15:53:38,197 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:53:38,197 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2019-12-18 15:53:38,198 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:53:38,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:53:38,198 INFO L82 PathProgramCache]: Analyzing trace with hash 939679780, now seen corresponding path program 1 times [2019-12-18 15:53:38,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:53:38,199 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196977866] [2019-12-18 15:53:38,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:53:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:53:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:53:38,241 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:53:38,241 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:53:38,242 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:53:38,242 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-18 15:53:38,250 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,251 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,251 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,251 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,251 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,252 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,252 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,252 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,253 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,253 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,254 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,255 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,255 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,255 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,256 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,256 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,257 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,257 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,258 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,258 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,260 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,261 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,261 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,261 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,261 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,261 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,261 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,262 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,263 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,263 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,263 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,263 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,264 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,264 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,264 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,275 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,275 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,276 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,276 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,276 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,277 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,278 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,278 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,278 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,278 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:38,279 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-18 15:53:38,280 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:53:38,280 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:53:38,280 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:53:38,280 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:53:38,280 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:53:38,280 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:53:38,280 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:53:38,281 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:53:38,283 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 73 transitions [2019-12-18 15:53:38,284 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 73 places, 73 transitions [2019-12-18 15:53:38,318 INFO L126 PetriNetUnfolder]: 10/99 cut-off events. [2019-12-18 15:53:38,319 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:53:38,323 INFO L76 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 99 events. 10/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 255 event pairs. 27/109 useless extension candidates. Maximal degree in co-relation 76. Up to 8 conditions per place. [2019-12-18 15:53:38,332 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 73 places, 73 transitions [2019-12-18 15:53:38,355 INFO L126 PetriNetUnfolder]: 10/99 cut-off events. [2019-12-18 15:53:38,356 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:53:38,357 INFO L76 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 99 events. 10/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 255 event pairs. 27/109 useless extension candidates. Maximal degree in co-relation 76. Up to 8 conditions per place. [2019-12-18 15:53:38,362 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2856 [2019-12-18 15:53:38,362 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:53:39,109 INFO L206 etLargeBlockEncoding]: Checked pairs total: 10021 [2019-12-18 15:53:39,109 INFO L214 etLargeBlockEncoding]: Total number of compositions: 30 [2019-12-18 15:53:39,110 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 44 transitions [2019-12-18 15:53:39,676 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 9268 states. [2019-12-18 15:53:39,676 INFO L276 IsEmpty]: Start isEmpty. Operand 9268 states. [2019-12-18 15:53:39,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 15:53:39,680 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:53:39,681 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:53:39,681 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:53:39,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:53:39,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1241182280, now seen corresponding path program 1 times [2019-12-18 15:53:39,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:53:39,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110569823] [2019-12-18 15:53:39,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:53:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:53:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:53:39,723 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110569823] [2019-12-18 15:53:39,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:53:39,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:53:39,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19833503] [2019-12-18 15:53:39,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:53:39,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:53:39,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:53:39,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:53:39,725 INFO L87 Difference]: Start difference. First operand 9268 states. Second operand 3 states. [2019-12-18 15:53:39,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:53:39,887 INFO L93 Difference]: Finished difference Result 6730 states and 23379 transitions. [2019-12-18 15:53:39,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:53:39,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-18 15:53:39,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:53:39,953 INFO L225 Difference]: With dead ends: 6730 [2019-12-18 15:53:39,953 INFO L226 Difference]: Without dead ends: 6730 [2019-12-18 15:53:39,954 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:53:40,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6730 states. [2019-12-18 15:53:40,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6730 to 6118. [2019-12-18 15:53:40,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6118 states. [2019-12-18 15:53:40,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 21468 transitions. [2019-12-18 15:53:40,433 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 21468 transitions. Word has length 11 [2019-12-18 15:53:40,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:53:40,434 INFO L462 AbstractCegarLoop]: Abstraction has 6118 states and 21468 transitions. [2019-12-18 15:53:40,434 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:53:40,434 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 21468 transitions. [2019-12-18 15:53:40,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 15:53:40,435 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:53:40,435 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:53:40,436 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:53:40,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:53:40,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1242075049, now seen corresponding path program 1 times [2019-12-18 15:53:40,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:53:40,437 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690157793] [2019-12-18 15:53:40,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:53:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:53:40,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:53:40,520 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690157793] [2019-12-18 15:53:40,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:53:40,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 15:53:40,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103324960] [2019-12-18 15:53:40,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 15:53:40,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:53:40,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 15:53:40,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 15:53:40,522 INFO L87 Difference]: Start difference. First operand 6118 states and 21468 transitions. Second operand 5 states. [2019-12-18 15:53:40,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:53:40,874 INFO L93 Difference]: Finished difference Result 12178 states and 41275 transitions. [2019-12-18 15:53:40,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-18 15:53:40,875 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-18 15:53:40,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:53:40,995 INFO L225 Difference]: With dead ends: 12178 [2019-12-18 15:53:40,996 INFO L226 Difference]: Without dead ends: 12178 [2019-12-18 15:53:41,000 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-18 15:53:41,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12178 states. [2019-12-18 15:53:41,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12178 to 7627. [2019-12-18 15:53:41,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7627 states. [2019-12-18 15:53:41,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7627 states to 7627 states and 26436 transitions. [2019-12-18 15:53:41,501 INFO L78 Accepts]: Start accepts. Automaton has 7627 states and 26436 transitions. Word has length 11 [2019-12-18 15:53:41,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:53:41,502 INFO L462 AbstractCegarLoop]: Abstraction has 7627 states and 26436 transitions. [2019-12-18 15:53:41,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 15:53:41,502 INFO L276 IsEmpty]: Start isEmpty. Operand 7627 states and 26436 transitions. [2019-12-18 15:53:41,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 15:53:41,504 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:53:41,504 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2019-12-18 15:53:41,504 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:53:41,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:53:41,505 INFO L82 PathProgramCache]: Analyzing trace with hash -21046912, now seen corresponding path program 1 times [2019-12-18 15:53:41,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:53:41,505 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117307805] [2019-12-18 15:53:41,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:53:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:53:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:53:41,560 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:53:41,560 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:53:41,560 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:53:41,561 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-18 15:53:41,573 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,573 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,573 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,573 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,573 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,574 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,574 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,574 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,575 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,575 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,576 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,576 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,576 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,577 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,577 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,577 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,577 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,578 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,578 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,578 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,579 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,579 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,579 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,579 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,579 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,579 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,579 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,580 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,580 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,580 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,580 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,581 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,581 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,581 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,581 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,581 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,581 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,582 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,582 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,582 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,583 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,583 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,583 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,586 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,586 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,586 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,587 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,587 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,588 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,588 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,589 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,589 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,589 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,590 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,590 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,591 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,591 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,591 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:53:41,592 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-18 15:53:41,593 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:53:41,593 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:53:41,593 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:53:41,593 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:53:41,593 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:53:41,593 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:53:41,593 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:53:41,594 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:53:41,598 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 91 transitions [2019-12-18 15:53:41,599 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions [2019-12-18 15:53:41,627 INFO L126 PetriNetUnfolder]: 13/126 cut-off events. [2019-12-18 15:53:41,627 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:53:41,633 INFO L76 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 126 events. 13/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 344 event pairs. 44/148 useless extension candidates. Maximal degree in co-relation 107. Up to 10 conditions per place. [2019-12-18 15:53:41,641 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions [2019-12-18 15:53:41,660 INFO L126 PetriNetUnfolder]: 13/126 cut-off events. [2019-12-18 15:53:41,660 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:53:41,663 INFO L76 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 126 events. 13/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 344 event pairs. 44/148 useless extension candidates. Maximal degree in co-relation 107. Up to 10 conditions per place. [2019-12-18 15:53:41,671 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5032 [2019-12-18 15:53:41,671 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:53:42,556 INFO L206 etLargeBlockEncoding]: Checked pairs total: 18566 [2019-12-18 15:53:42,557 INFO L214 etLargeBlockEncoding]: Total number of compositions: 36 [2019-12-18 15:53:42,557 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 57 transitions [2019-12-18 15:54:10,784 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 111220 states. [2019-12-18 15:54:10,784 INFO L276 IsEmpty]: Start isEmpty. Operand 111220 states. [2019-12-18 15:54:10,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 15:54:10,785 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:54:10,785 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:54:10,786 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:54:10,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:54:10,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1804058354, now seen corresponding path program 1 times [2019-12-18 15:54:10,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:54:10,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270749605] [2019-12-18 15:54:10,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:54:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:54:10,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:54:10,875 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270749605] [2019-12-18 15:54:10,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:54:10,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 15:54:10,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948832463] [2019-12-18 15:54:10,875 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 15:54:10,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:54:10,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 15:54:10,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 15:54:10,878 INFO L87 Difference]: Start difference. First operand 111220 states. Second operand 5 states. [2019-12-18 15:54:13,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:54:13,925 INFO L93 Difference]: Finished difference Result 149526 states and 663692 transitions. [2019-12-18 15:54:13,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 15:54:13,926 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-18 15:54:13,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:54:14,809 INFO L225 Difference]: With dead ends: 149526 [2019-12-18 15:54:14,809 INFO L226 Difference]: Without dead ends: 149526 [2019-12-18 15:54:14,809 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-18 15:54:20,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149526 states. [2019-12-18 15:54:23,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149526 to 90340. [2019-12-18 15:54:23,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90340 states. [2019-12-18 15:54:23,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90340 states to 90340 states and 415857 transitions. [2019-12-18 15:54:23,349 INFO L78 Accepts]: Start accepts. Automaton has 90340 states and 415857 transitions. Word has length 11 [2019-12-18 15:54:23,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:54:23,349 INFO L462 AbstractCegarLoop]: Abstraction has 90340 states and 415857 transitions. [2019-12-18 15:54:23,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 15:54:23,349 INFO L276 IsEmpty]: Start isEmpty. Operand 90340 states and 415857 transitions. [2019-12-18 15:54:23,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 15:54:23,350 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:54:23,350 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:54:23,350 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:54:23,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:54:23,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1803104081, now seen corresponding path program 1 times [2019-12-18 15:54:23,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:54:23,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076853840] [2019-12-18 15:54:23,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:54:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:54:23,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:54:23,396 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076853840] [2019-12-18 15:54:23,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:54:23,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:54:23,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711283745] [2019-12-18 15:54:23,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:54:23,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:54:23,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:54:23,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:54:23,398 INFO L87 Difference]: Start difference. First operand 90340 states and 415857 transitions. Second operand 3 states. [2019-12-18 15:54:28,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:54:28,300 INFO L93 Difference]: Finished difference Result 116496 states and 510416 transitions. [2019-12-18 15:54:28,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:54:28,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-18 15:54:28,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:54:28,627 INFO L225 Difference]: With dead ends: 116496 [2019-12-18 15:54:28,627 INFO L226 Difference]: Without dead ends: 116496 [2019-12-18 15:54:28,627 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:54:31,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116496 states. [2019-12-18 15:54:33,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116496 to 112020. [2019-12-18 15:54:33,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112020 states. [2019-12-18 15:54:34,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112020 states to 112020 states and 492483 transitions. [2019-12-18 15:54:34,097 INFO L78 Accepts]: Start accepts. Automaton has 112020 states and 492483 transitions. Word has length 11 [2019-12-18 15:54:34,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:54:34,098 INFO L462 AbstractCegarLoop]: Abstraction has 112020 states and 492483 transitions. [2019-12-18 15:54:34,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:54:34,098 INFO L276 IsEmpty]: Start isEmpty. Operand 112020 states and 492483 transitions. [2019-12-18 15:54:34,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-18 15:54:34,099 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:54:34,099 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:54:34,099 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:54:34,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:54:34,100 INFO L82 PathProgramCache]: Analyzing trace with hash 748985780, now seen corresponding path program 1 times [2019-12-18 15:54:34,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:54:34,100 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138477850] [2019-12-18 15:54:34,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:54:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:54:34,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-18 15:54:34,168 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138477850] [2019-12-18 15:54:34,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:54:34,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 15:54:34,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22821534] [2019-12-18 15:54:34,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 15:54:34,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:54:34,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 15:54:34,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 15:54:34,170 INFO L87 Difference]: Start difference. First operand 112020 states and 492483 transitions. Second operand 5 states. [2019-12-18 15:54:40,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:54:40,752 INFO L93 Difference]: Finished difference Result 207488 states and 889413 transitions. [2019-12-18 15:54:40,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-18 15:54:40,752 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-18 15:54:40,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:54:41,396 INFO L225 Difference]: With dead ends: 207488 [2019-12-18 15:54:41,396 INFO L226 Difference]: Without dead ends: 207488 [2019-12-18 15:54:41,396 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-18 15:54:45,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207488 states. [2019-12-18 15:54:48,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207488 to 126524. [2019-12-18 15:54:48,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126524 states. [2019-12-18 15:54:48,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126524 states to 126524 states and 554674 transitions. [2019-12-18 15:54:48,729 INFO L78 Accepts]: Start accepts. Automaton has 126524 states and 554674 transitions. Word has length 14 [2019-12-18 15:54:48,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:54:48,730 INFO L462 AbstractCegarLoop]: Abstraction has 126524 states and 554674 transitions. [2019-12-18 15:54:48,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 15:54:48,730 INFO L276 IsEmpty]: Start isEmpty. Operand 126524 states and 554674 transitions. [2019-12-18 15:54:48,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-18 15:54:48,731 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:54:48,731 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2019-12-18 15:54:48,731 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:54:48,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:54:48,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1619668708, now seen corresponding path program 1 times [2019-12-18 15:54:48,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:54:48,732 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463154814] [2019-12-18 15:54:48,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:54:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:54:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:54:48,751 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:54:48,751 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:54:48,751 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:54:48,752 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-18 15:54:48,759 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,759 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,759 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,759 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,759 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,759 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,760 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,760 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,760 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,760 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,761 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,761 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,761 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,761 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,761 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,761 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,761 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,762 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,762 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,762 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,762 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,762 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,763 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,763 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,763 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,763 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,763 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,763 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,764 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,764 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,764 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,764 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,764 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,764 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,766 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,766 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,766 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,766 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,766 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,766 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,767 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,767 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,767 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,767 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,767 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,768 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,768 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,768 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,768 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,768 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,778 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,779 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,779 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,779 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,779 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,780 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,781 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,781 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,781 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,781 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,782 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,782 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,783 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,783 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,783 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,784 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,784 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,785 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,785 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,785 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:54:48,786 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-18 15:54:48,786 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:54:48,786 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:54:48,787 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:54:48,787 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:54:48,787 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:54:48,787 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:54:48,787 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:54:48,787 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:54:48,789 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 109 transitions [2019-12-18 15:54:48,789 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions [2019-12-18 15:54:48,806 INFO L126 PetriNetUnfolder]: 16/153 cut-off events. [2019-12-18 15:54:48,806 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:54:48,811 INFO L76 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 153 events. 16/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 481 event pairs. 65/191 useless extension candidates. Maximal degree in co-relation 141. Up to 12 conditions per place. [2019-12-18 15:54:48,823 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions [2019-12-18 15:54:48,839 INFO L126 PetriNetUnfolder]: 16/153 cut-off events. [2019-12-18 15:54:48,839 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:54:48,844 INFO L76 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 153 events. 16/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 481 event pairs. 65/191 useless extension candidates. Maximal degree in co-relation 141. Up to 12 conditions per place. [2019-12-18 15:54:48,855 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 7820 [2019-12-18 15:54:48,856 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:54:49,806 INFO L206 etLargeBlockEncoding]: Checked pairs total: 29707 [2019-12-18 15:54:49,807 INFO L214 etLargeBlockEncoding]: Total number of compositions: 42 [2019-12-18 15:54:49,807 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 70 transitions Received shutdown request... [2019-12-18 15:57:46,782 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-18 15:57:46,785 WARN L227 ceAbstractionStarter]: Timeout [2019-12-18 15:57:46,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 03:57:46 BasicIcfg [2019-12-18 15:57:46,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 15:57:46,788 INFO L168 Benchmark]: Toolchain (without parser) took 252153.08 ms. Allocated memory was 141.0 MB in the beginning and 2.6 GB in the end (delta: 2.5 GB). Free memory was 101.2 MB in the beginning and 855.6 MB in the end (delta: -754.4 MB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. [2019-12-18 15:57:46,789 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 141.0 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-18 15:57:46,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.70 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 164.3 MB in the end (delta: -63.6 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-12-18 15:57:46,791 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.17 ms. Allocated memory is still 204.5 MB. Free memory was 164.3 MB in the beginning and 161.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-12-18 15:57:46,791 INFO L168 Benchmark]: Boogie Preprocessor took 28.12 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 160.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 15:57:46,792 INFO L168 Benchmark]: RCFGBuilder took 380.18 ms. Allocated memory is still 204.5 MB. Free memory was 160.1 MB in the beginning and 143.2 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. [2019-12-18 15:57:46,793 INFO L168 Benchmark]: TraceAbstraction took 251072.87 ms. Allocated memory was 204.5 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 142.5 MB in the beginning and 855.6 MB in the end (delta: -713.1 MB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. [2019-12-18 15:57:46,798 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 141.0 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 617.70 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 164.3 MB in the end (delta: -63.6 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.17 ms. Allocated memory is still 204.5 MB. Free memory was 164.3 MB in the beginning and 161.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.12 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 160.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 380.18 ms. Allocated memory is still 204.5 MB. Free memory was 160.1 MB in the beginning and 143.2 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 251072.87 ms. Allocated memory was 204.5 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 142.5 MB in the beginning and 855.6 MB in the end (delta: -713.1 MB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 37 ProgramPointsBefore, 9 ProgramPointsAfterwards, 37 TransitionsBefore, 8 TransitionsAfterwards, 340 CoEnabledTransitionPairs, 6 FixpointIterations, 8 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 164 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 212 CheckedPairsTotal, 32 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 55 ProgramPointsBefore, 31 ProgramPointsAfterwards, 55 TransitionsBefore, 31 TransitionsAfterwards, 1292 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 462 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 16 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 3904 CheckedPairsTotal, 26 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.8s, 73 ProgramPointsBefore, 44 ProgramPointsAfterwards, 73 TransitionsBefore, 44 TransitionsAfterwards, 2856 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 1046 VarBasedMoverChecksPositive, 67 VarBasedMoverChecksNegative, 29 SemBasedMoverChecksPositive, 70 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 10021 CheckedPairsTotal, 30 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 91 ProgramPointsBefore, 57 ProgramPointsAfterwards, 91 TransitionsBefore, 57 TransitionsAfterwards, 5032 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 5 ChoiceCompositions, 1779 VarBasedMoverChecksPositive, 71 VarBasedMoverChecksNegative, 29 SemBasedMoverChecksPositive, 82 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 18566 CheckedPairsTotal, 36 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 109 ProgramPointsBefore, 70 ProgramPointsAfterwards, 109 TransitionsBefore, 70 TransitionsAfterwards, 7820 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 6 ChoiceCompositions, 2630 VarBasedMoverChecksPositive, 88 VarBasedMoverChecksNegative, 37 SemBasedMoverChecksPositive, 103 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 29707 CheckedPairsTotal, 42 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 698]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 698). Cancelled while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 70 places, 70 transitions. Already constructed 311470 states. Currently 62209 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Result: TIMEOUT, OverallTime: 177.9s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, 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: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown