/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 19:49:28,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 19:49:28,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 19:49:28,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 19:49:28,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 19:49:28,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 19:49:28,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 19:49:28,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 19:49:28,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 19:49:28,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 19:49:28,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 19:49:28,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 19:49:28,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 19:49:28,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 19:49:28,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 19:49:28,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 19:49:28,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 19:49:28,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 19:49:28,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 19:49:28,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 19:49:28,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 19:49:28,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 19:49:28,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 19:49:28,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 19:49:28,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 19:49:28,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 19:49:28,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 19:49:28,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 19:49:28,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 19:49:28,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 19:49:28,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 19:49:28,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 19:49:28,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 19:49:28,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 19:49:28,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 19:49:28,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 19:49:28,189 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-VariableLbe.epf [2019-12-18 19:49:28,204 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 19:49:28,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 19:49:28,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 19:49:28,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 19:49:28,206 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 19:49:28,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 19:49:28,206 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 19:49:28,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 19:49:28,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 19:49:28,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 19:49:28,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 19:49:28,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 19:49:28,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 19:49:28,207 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 19:49:28,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 19:49:28,208 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 19:49:28,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 19:49:28,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 19:49:28,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 19:49:28,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 19:49:28,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 19:49:28,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:49:28,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 19:49:28,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 19:49:28,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 19:49:28,210 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 19:49:28,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 19:49:28,210 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 19:49:28,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 19:49:28,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 19:49:28,570 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 19:49:28,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 19:49:28,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 19:49:28,601 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 19:49:28,602 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 19:49:28,603 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2019-12-18 19:49:28,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/188e9e526/df0d330e499a42a2b4b8973939b6d5b2/FLAGba59ad525 [2019-12-18 19:49:29,157 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 19:49:29,158 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2019-12-18 19:49:29,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/188e9e526/df0d330e499a42a2b4b8973939b6d5b2/FLAGba59ad525 [2019-12-18 19:49:29,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/188e9e526/df0d330e499a42a2b4b8973939b6d5b2 [2019-12-18 19:49:29,514 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 19:49:29,516 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 19:49:29,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 19:49:29,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 19:49:29,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 19:49:29,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:49:29" (1/1) ... [2019-12-18 19:49:29,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7da6a15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:49:29, skipping insertion in model container [2019-12-18 19:49:29,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:49:29" (1/1) ... [2019-12-18 19:49:29,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 19:49:29,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 19:49:30,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:49:30,148 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 19:49:30,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:49:30,296 INFO L208 MainTranslator]: Completed translation [2019-12-18 19:49:30,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:49:30 WrapperNode [2019-12-18 19:49:30,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 19:49:30,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 19:49:30,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 19:49:30,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 19:49:30,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:49:30" (1/1) ... [2019-12-18 19:49:30,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:49:30" (1/1) ... [2019-12-18 19:49:30,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 19:49:30,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 19:49:30,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 19:49:30,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 19:49:30,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:49:30" (1/1) ... [2019-12-18 19:49:30,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:49:30" (1/1) ... [2019-12-18 19:49:30,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:49:30" (1/1) ... [2019-12-18 19:49:30,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:49:30" (1/1) ... [2019-12-18 19:49:30,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:49:30" (1/1) ... [2019-12-18 19:49:30,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:49:30" (1/1) ... [2019-12-18 19:49:30,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:49:30" (1/1) ... [2019-12-18 19:49:30,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 19:49:30,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 19:49:30,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 19:49:30,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 19:49:30,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:49:30" (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 19:49:30,452 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 19:49:30,452 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 19:49:30,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 19:49:30,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 19:49:30,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 19:49:30,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 19:49:30,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 19:49:30,456 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 19:49:30,581 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 19:49:30,582 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 19:49:30,583 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2019-12-18 19:49:30,583 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-12-18 19:49:30,776 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 19:49:30,777 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-18 19:49:30,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:49:30 BoogieIcfgContainer [2019-12-18 19:49:30,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 19:49:30,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 19:49:30,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 19:49:30,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 19:49:30,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:49:29" (1/3) ... [2019-12-18 19:49:30,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86ad8f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:49:30, skipping insertion in model container [2019-12-18 19:49:30,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:49:30" (2/3) ... [2019-12-18 19:49:30,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86ad8f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:49:30, skipping insertion in model container [2019-12-18 19:49:30,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:49:30" (3/3) ... [2019-12-18 19:49:30,787 INFO L109 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf.i [2019-12-18 19:49:30,797 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 19:49:30,797 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 19:49:30,804 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 19:49:30,805 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 19:49:30,828 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:30,828 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:30,829 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:30,829 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:30,829 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:30,830 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:30,830 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:30,830 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:30,831 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:30,831 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:30,835 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:30,835 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:30,835 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:30,836 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:30,836 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:30,852 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-18 19:49:30,868 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:49:30,868 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:49:30,868 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:49:30,868 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:49:30,868 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:49:30,869 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:49:30,869 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:49:30,869 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:49:30,880 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 37 transitions [2019-12-18 19:49:30,882 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 37 places, 37 transitions [2019-12-18 19:49:30,912 INFO L126 PetriNetUnfolder]: 4/45 cut-off events. [2019-12-18 19:49:30,912 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:49:30,919 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 19:49:30,922 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 37 places, 37 transitions [2019-12-18 19:49:30,936 INFO L126 PetriNetUnfolder]: 4/45 cut-off events. [2019-12-18 19:49:30,936 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:49:30,938 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 19:49:30,940 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 340 [2019-12-18 19:49:30,944 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:49:31,910 INFO L206 etLargeBlockEncoding]: Checked pairs total: 212 [2019-12-18 19:49:31,910 INFO L214 etLargeBlockEncoding]: Total number of compositions: 32 [2019-12-18 19:49:31,914 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 9 places, 8 transitions [2019-12-18 19:49:31,921 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2019-12-18 19:49:31,923 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-18 19:49:31,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 19:49:31,929 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:49:31,930 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 19:49:31,930 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 19:49:31,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:49:31,937 INFO L82 PathProgramCache]: Analyzing trace with hash 5302540, now seen corresponding path program 1 times [2019-12-18 19:49:31,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:49:31,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962141129] [2019-12-18 19:49:31,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:49:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:49:32,163 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 19:49:32,163 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962141129] [2019-12-18 19:49:32,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:49:32,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 19:49:32,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674000650] [2019-12-18 19:49:32,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:49:32,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:49:32,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:49:32,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:49:32,191 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-12-18 19:49:32,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:49:32,205 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-12-18 19:49:32,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:49:32,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-18 19:49:32,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:49:32,217 INFO L225 Difference]: With dead ends: 7 [2019-12-18 19:49:32,218 INFO L226 Difference]: Without dead ends: 7 [2019-12-18 19:49:32,219 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 19:49:32,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-12-18 19:49:32,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-18 19:49:32,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-18 19:49:32,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2019-12-18 19:49:32,249 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 4 [2019-12-18 19:49:32,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:49:32,249 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2019-12-18 19:49:32,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:49:32,250 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2019-12-18 19:49:32,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-18 19:49:32,250 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:49:32,250 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-18 19:49:32,251 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 19:49:32,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:49:32,251 INFO L82 PathProgramCache]: Analyzing trace with hash 800720775, now seen corresponding path program 1 times [2019-12-18 19:49:32,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:49:32,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300283675] [2019-12-18 19:49:32,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:49:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:49:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:49:32,317 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 19:49:32,318 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 19:49:32,320 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 19:49:32,320 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-18 19:49:32,327 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,327 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,327 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,327 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,328 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,328 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,328 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,328 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,329 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,329 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,330 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,330 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,330 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,331 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,335 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,335 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,335 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,335 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,336 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,336 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,337 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,338 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,338 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,338 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,338 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,340 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,340 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,340 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,340 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,341 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,343 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 19:49:32,344 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:49:32,344 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:49:32,344 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:49:32,344 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:49:32,344 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:49:32,345 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:49:32,345 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:49:32,345 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:49:32,347 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 55 transitions [2019-12-18 19:49:32,348 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 55 places, 55 transitions [2019-12-18 19:49:32,382 INFO L126 PetriNetUnfolder]: 7/72 cut-off events. [2019-12-18 19:49:32,382 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:49:32,384 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 19:49:32,391 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 55 places, 55 transitions [2019-12-18 19:49:32,406 INFO L126 PetriNetUnfolder]: 7/72 cut-off events. [2019-12-18 19:49:32,406 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:49:32,408 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 19:49:32,411 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1292 [2019-12-18 19:49:32,411 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:49:32,860 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3904 [2019-12-18 19:49:32,861 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-18 19:49:32,861 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 31 transitions [2019-12-18 19:49:32,898 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 772 states. [2019-12-18 19:49:32,898 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states. [2019-12-18 19:49:32,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 19:49:32,901 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:49:32,901 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2019-12-18 19:49:32,901 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:49:32,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:49:32,902 INFO L82 PathProgramCache]: Analyzing trace with hash 939679780, now seen corresponding path program 1 times [2019-12-18 19:49:32,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:49:32,902 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559922950] [2019-12-18 19:49:32,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:49:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:49:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:49:32,935 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 19:49:32,936 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 19:49:32,936 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 19:49:32,936 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-18 19:49:32,946 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,946 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,946 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,947 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,947 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,947 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,947 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,948 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,948 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,949 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,949 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,949 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,949 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,950 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,950 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,950 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,950 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,950 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,952 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,953 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,953 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,953 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,954 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,954 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,954 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,955 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,955 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,955 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,956 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,956 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,957 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,957 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,957 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,957 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,957 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,959 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,959 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,959 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,960 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,960 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,962 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,962 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,962 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,963 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,963 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:32,968 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-18 19:49:32,968 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:49:32,969 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:49:32,969 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:49:32,969 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:49:32,969 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:49:32,969 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:49:32,969 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:49:32,969 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:49:32,973 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 73 transitions [2019-12-18 19:49:32,973 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 73 places, 73 transitions [2019-12-18 19:49:33,008 INFO L126 PetriNetUnfolder]: 10/99 cut-off events. [2019-12-18 19:49:33,009 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:49:33,013 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 19:49:33,021 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 73 places, 73 transitions [2019-12-18 19:49:33,039 INFO L126 PetriNetUnfolder]: 10/99 cut-off events. [2019-12-18 19:49:33,039 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:49:33,041 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 19:49:33,046 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2856 [2019-12-18 19:49:33,046 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:49:33,403 INFO L206 etLargeBlockEncoding]: Checked pairs total: 10021 [2019-12-18 19:49:33,403 INFO L214 etLargeBlockEncoding]: Total number of compositions: 30 [2019-12-18 19:49:33,403 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 44 transitions [2019-12-18 19:49:33,951 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 9268 states. [2019-12-18 19:49:33,951 INFO L276 IsEmpty]: Start isEmpty. Operand 9268 states. [2019-12-18 19:49:33,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 19:49:33,956 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:49:33,956 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:49:33,956 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:49:33,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:49:33,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1241182280, now seen corresponding path program 1 times [2019-12-18 19:49:33,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:49:33,957 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927106045] [2019-12-18 19:49:33,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:49:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:49:34,016 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 19:49:34,017 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927106045] [2019-12-18 19:49:34,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:49:34,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:49:34,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357595212] [2019-12-18 19:49:34,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:49:34,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:49:34,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:49:34,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:49:34,018 INFO L87 Difference]: Start difference. First operand 9268 states. Second operand 3 states. [2019-12-18 19:49:34,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:49:34,163 INFO L93 Difference]: Finished difference Result 6730 states and 23379 transitions. [2019-12-18 19:49:34,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:49:34,164 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-18 19:49:34,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:49:34,233 INFO L225 Difference]: With dead ends: 6730 [2019-12-18 19:49:34,233 INFO L226 Difference]: Without dead ends: 6730 [2019-12-18 19:49:34,234 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 19:49:34,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6730 states. [2019-12-18 19:49:34,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6730 to 6118. [2019-12-18 19:49:34,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6118 states. [2019-12-18 19:49:34,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 21468 transitions. [2019-12-18 19:49:34,629 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 21468 transitions. Word has length 11 [2019-12-18 19:49:34,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:49:34,629 INFO L462 AbstractCegarLoop]: Abstraction has 6118 states and 21468 transitions. [2019-12-18 19:49:34,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:49:34,630 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 21468 transitions. [2019-12-18 19:49:34,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 19:49:34,631 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:49:34,631 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:49:34,632 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:49:34,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:49:34,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1242075049, now seen corresponding path program 1 times [2019-12-18 19:49:34,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:49:34,633 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321503234] [2019-12-18 19:49:34,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:49:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:49:34,722 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 19:49:34,723 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321503234] [2019-12-18 19:49:34,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:49:34,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 19:49:34,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036360092] [2019-12-18 19:49:34,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 19:49:34,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:49:34,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 19:49:34,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 19:49:34,726 INFO L87 Difference]: Start difference. First operand 6118 states and 21468 transitions. Second operand 5 states. [2019-12-18 19:49:35,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:49:35,020 INFO L93 Difference]: Finished difference Result 12178 states and 41275 transitions. [2019-12-18 19:49:35,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-18 19:49:35,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-18 19:49:35,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:49:35,108 INFO L225 Difference]: With dead ends: 12178 [2019-12-18 19:49:35,108 INFO L226 Difference]: Without dead ends: 12178 [2019-12-18 19:49:35,109 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 19:49:35,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12178 states. [2019-12-18 19:49:35,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12178 to 7627. [2019-12-18 19:49:35,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7627 states. [2019-12-18 19:49:35,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7627 states to 7627 states and 26436 transitions. [2019-12-18 19:49:35,594 INFO L78 Accepts]: Start accepts. Automaton has 7627 states and 26436 transitions. Word has length 11 [2019-12-18 19:49:35,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:49:35,595 INFO L462 AbstractCegarLoop]: Abstraction has 7627 states and 26436 transitions. [2019-12-18 19:49:35,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 19:49:35,595 INFO L276 IsEmpty]: Start isEmpty. Operand 7627 states and 26436 transitions. [2019-12-18 19:49:35,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 19:49:35,596 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:49:35,596 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2019-12-18 19:49:35,596 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:49:35,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:49:35,597 INFO L82 PathProgramCache]: Analyzing trace with hash -21046912, now seen corresponding path program 1 times [2019-12-18 19:49:35,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:49:35,597 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959407047] [2019-12-18 19:49:35,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:49:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:49:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:49:35,623 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 19:49:35,623 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 19:49:35,623 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 19:49:35,623 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-18 19:49:35,631 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,631 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,631 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,631 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,631 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,632 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,632 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,632 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,633 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,633 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,633 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,633 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,633 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,633 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,634 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,634 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,634 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,634 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,635 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,635 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,635 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,635 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,636 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,636 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,636 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,636 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,636 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,636 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,637 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,637 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,637 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,637 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,638 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,638 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,638 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,638 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,638 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,639 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,639 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,639 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,640 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,640 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,640 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,640 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,640 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,642 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,642 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,643 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,643 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,643 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,646 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,646 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,646 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,646 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,647 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,648 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,648 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,648 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,648 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,649 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:49:35,650 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-18 19:49:35,650 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:49:35,650 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:49:35,651 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:49:35,651 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:49:35,651 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:49:35,651 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:49:35,651 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:49:35,651 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:49:35,653 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 91 transitions [2019-12-18 19:49:35,653 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions [2019-12-18 19:49:35,670 INFO L126 PetriNetUnfolder]: 13/126 cut-off events. [2019-12-18 19:49:35,670 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:49:35,673 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 19:49:35,681 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions [2019-12-18 19:49:35,697 INFO L126 PetriNetUnfolder]: 13/126 cut-off events. [2019-12-18 19:49:35,697 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:49:35,701 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 19:49:35,709 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5032 [2019-12-18 19:49:35,709 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:49:36,239 INFO L206 etLargeBlockEncoding]: Checked pairs total: 18566 [2019-12-18 19:49:36,239 INFO L214 etLargeBlockEncoding]: Total number of compositions: 36 [2019-12-18 19:49:36,240 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 57 transitions [2019-12-18 19:50:04,329 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 111220 states. [2019-12-18 19:50:04,330 INFO L276 IsEmpty]: Start isEmpty. Operand 111220 states. [2019-12-18 19:50:04,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 19:50:04,331 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:50:04,331 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:50:04,331 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 19:50:04,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:50:04,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1804058354, now seen corresponding path program 1 times [2019-12-18 19:50:04,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:50:04,332 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472071666] [2019-12-18 19:50:04,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:50:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:50:04,433 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 19:50:04,433 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472071666] [2019-12-18 19:50:04,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:50:04,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 19:50:04,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857541838] [2019-12-18 19:50:04,435 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 19:50:04,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:50:04,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 19:50:04,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 19:50:04,436 INFO L87 Difference]: Start difference. First operand 111220 states. Second operand 5 states. [2019-12-18 19:50:08,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:50:08,237 INFO L93 Difference]: Finished difference Result 149526 states and 663692 transitions. [2019-12-18 19:50:08,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 19:50:08,238 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-18 19:50:08,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:50:09,179 INFO L225 Difference]: With dead ends: 149526 [2019-12-18 19:50:09,180 INFO L226 Difference]: Without dead ends: 149526 [2019-12-18 19:50:09,180 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 19:50:12,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149526 states. [2019-12-18 19:50:15,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149526 to 90340. [2019-12-18 19:50:15,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90340 states. [2019-12-18 19:50:20,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90340 states to 90340 states and 415857 transitions. [2019-12-18 19:50:20,579 INFO L78 Accepts]: Start accepts. Automaton has 90340 states and 415857 transitions. Word has length 11 [2019-12-18 19:50:20,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:50:20,579 INFO L462 AbstractCegarLoop]: Abstraction has 90340 states and 415857 transitions. [2019-12-18 19:50:20,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 19:50:20,580 INFO L276 IsEmpty]: Start isEmpty. Operand 90340 states and 415857 transitions. [2019-12-18 19:50:20,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 19:50:20,580 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:50:20,581 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:50:20,581 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 19:50:20,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:50:20,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1803104081, now seen corresponding path program 1 times [2019-12-18 19:50:20,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:50:20,582 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229817486] [2019-12-18 19:50:20,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:50:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:50:20,634 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 19:50:20,635 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229817486] [2019-12-18 19:50:20,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:50:20,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:50:20,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637683222] [2019-12-18 19:50:20,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:50:20,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:50:20,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:50:20,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:50:20,637 INFO L87 Difference]: Start difference. First operand 90340 states and 415857 transitions. Second operand 3 states. [2019-12-18 19:50:21,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:50:21,254 INFO L93 Difference]: Finished difference Result 116496 states and 510416 transitions. [2019-12-18 19:50:21,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:50:21,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-18 19:50:21,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:50:21,594 INFO L225 Difference]: With dead ends: 116496 [2019-12-18 19:50:21,595 INFO L226 Difference]: Without dead ends: 116496 [2019-12-18 19:50:21,595 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 19:50:25,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116496 states. [2019-12-18 19:50:31,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116496 to 112020. [2019-12-18 19:50:31,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112020 states. [2019-12-18 19:50:31,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112020 states to 112020 states and 492483 transitions. [2019-12-18 19:50:31,787 INFO L78 Accepts]: Start accepts. Automaton has 112020 states and 492483 transitions. Word has length 11 [2019-12-18 19:50:31,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:50:31,788 INFO L462 AbstractCegarLoop]: Abstraction has 112020 states and 492483 transitions. [2019-12-18 19:50:31,788 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:50:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 112020 states and 492483 transitions. [2019-12-18 19:50:31,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-18 19:50:31,789 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:50:31,789 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:50:31,790 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 19:50:31,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:50:31,790 INFO L82 PathProgramCache]: Analyzing trace with hash 748985780, now seen corresponding path program 1 times [2019-12-18 19:50:31,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:50:31,790 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801067680] [2019-12-18 19:50:31,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:50:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:50:31,870 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 19:50:31,871 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801067680] [2019-12-18 19:50:31,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:50:31,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 19:50:31,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136398212] [2019-12-18 19:50:31,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 19:50:31,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:50:31,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 19:50:31,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 19:50:31,873 INFO L87 Difference]: Start difference. First operand 112020 states and 492483 transitions. Second operand 5 states. [2019-12-18 19:50:33,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:50:33,947 INFO L93 Difference]: Finished difference Result 207488 states and 889413 transitions. [2019-12-18 19:50:33,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-18 19:50:33,948 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-18 19:50:33,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:50:34,596 INFO L225 Difference]: With dead ends: 207488 [2019-12-18 19:50:34,596 INFO L226 Difference]: Without dead ends: 207488 [2019-12-18 19:50:34,596 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 19:50:44,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207488 states. [2019-12-18 19:50:46,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207488 to 126524. [2019-12-18 19:50:46,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126524 states. [2019-12-18 19:50:48,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126524 states to 126524 states and 554674 transitions. [2019-12-18 19:50:48,341 INFO L78 Accepts]: Start accepts. Automaton has 126524 states and 554674 transitions. Word has length 14 [2019-12-18 19:50:48,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:50:48,342 INFO L462 AbstractCegarLoop]: Abstraction has 126524 states and 554674 transitions. [2019-12-18 19:50:48,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 19:50:48,342 INFO L276 IsEmpty]: Start isEmpty. Operand 126524 states and 554674 transitions. [2019-12-18 19:50:48,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-18 19:50:48,343 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:50:48,343 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2019-12-18 19:50:48,343 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 19:50:48,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:50:48,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1619668708, now seen corresponding path program 1 times [2019-12-18 19:50:48,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:50:48,344 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993961875] [2019-12-18 19:50:48,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:50:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:50:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:50:48,364 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 19:50:48,364 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 19:50:48,365 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 19:50:48,365 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-18 19:50:48,372 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,372 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,373 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,373 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,373 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,373 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,373 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,373 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,374 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,374 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,374 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,374 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,374 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,375 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,375 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,375 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,375 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,375 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,376 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,376 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,376 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,376 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,376 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,377 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,377 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,377 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,377 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,377 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,377 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,378 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,378 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,378 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,378 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,378 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,378 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,379 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,379 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,379 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,379 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,379 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,380 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,380 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,380 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,380 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,380 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,381 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,381 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,381 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,381 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,381 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,382 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,382 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,382 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,382 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,382 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,384 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,384 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,384 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,384 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,384 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,386 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,386 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,386 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,386 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,386 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,387 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,388 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,388 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,388 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,388 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,391 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,391 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,392 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,392 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,392 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:50:48,393 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-18 19:50:48,394 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:50:48,394 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:50:48,394 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:50:48,394 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:50:48,394 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:50:48,394 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:50:48,394 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:50:48,395 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:50:48,396 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 109 transitions [2019-12-18 19:50:48,396 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions [2019-12-18 19:50:48,416 INFO L126 PetriNetUnfolder]: 16/153 cut-off events. [2019-12-18 19:50:48,416 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:50:48,420 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 19:50:48,432 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions [2019-12-18 19:50:48,449 INFO L126 PetriNetUnfolder]: 16/153 cut-off events. [2019-12-18 19:50:48,450 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:50:48,454 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 19:50:48,466 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 7820 [2019-12-18 19:50:48,466 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:50:48,960 INFO L206 etLargeBlockEncoding]: Checked pairs total: 29707 [2019-12-18 19:50:48,961 INFO L214 etLargeBlockEncoding]: Total number of compositions: 42 [2019-12-18 19:50:48,961 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 70 transitions Received shutdown request... [2019-12-18 19:53:36,137 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-18 19:53:36,140 WARN L227 ceAbstractionStarter]: Timeout [2019-12-18 19:53:36,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 07:53:36 BasicIcfg [2019-12-18 19:53:36,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 19:53:36,144 INFO L168 Benchmark]: Toolchain (without parser) took 246627.48 ms. Allocated memory was 143.7 MB in the beginning and 2.5 GB in the end (delta: 2.4 GB). Free memory was 100.3 MB in the beginning and 836.3 MB in the end (delta: -736.1 MB). Peak memory consumption was 3.7 GB. Max. memory is 7.1 GB. [2019-12-18 19:53:36,144 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 143.7 MB. Free memory was 120.1 MB in the beginning and 119.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-18 19:53:36,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.82 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 99.8 MB in the beginning and 159.6 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-18 19:53:36,146 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.34 ms. Allocated memory is still 200.3 MB. Free memory was 159.6 MB in the beginning and 157.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-18 19:53:36,147 INFO L168 Benchmark]: Boogie Preprocessor took 24.79 ms. Allocated memory is still 200.3 MB. Free memory was 157.5 MB in the beginning and 156.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 19:53:36,148 INFO L168 Benchmark]: RCFGBuilder took 396.57 ms. Allocated memory is still 200.3 MB. Free memory was 156.0 MB in the beginning and 138.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2019-12-18 19:53:36,149 INFO L168 Benchmark]: TraceAbstraction took 245361.50 ms. Allocated memory was 200.3 MB in the beginning and 2.5 GB in the end (delta: 2.3 GB). Free memory was 138.2 MB in the beginning and 836.3 MB in the end (delta: -698.2 MB). Peak memory consumption was 3.7 GB. Max. memory is 7.1 GB. [2019-12-18 19:53:36,154 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 143.7 MB. Free memory was 120.1 MB in the beginning and 119.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 779.82 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 99.8 MB in the beginning and 159.6 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.34 ms. Allocated memory is still 200.3 MB. Free memory was 159.6 MB in the beginning and 157.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.79 ms. Allocated memory is still 200.3 MB. Free memory was 157.5 MB in the beginning and 156.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 396.57 ms. Allocated memory is still 200.3 MB. Free memory was 156.0 MB in the beginning and 138.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 245361.50 ms. Allocated memory was 200.3 MB in the beginning and 2.5 GB in the end (delta: 2.3 GB). Free memory was 138.2 MB in the beginning and 836.3 MB in the end (delta: -698.2 MB). Peak memory consumption was 3.7 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: 0.5s, 55 ProgramPointsBefore, 31 ProgramPointsAfterwards, 55 TransitionsBefore, 31 TransitionsAfterwards, 1292 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 426 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 3904 CheckedPairsTotal, 26 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.4s, 73 ProgramPointsBefore, 44 ProgramPointsAfterwards, 73 TransitionsBefore, 44 TransitionsAfterwards, 2856 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 998 VarBasedMoverChecksPositive, 47 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 10021 CheckedPairsTotal, 30 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.5s, 91 ProgramPointsBefore, 57 ProgramPointsAfterwards, 91 TransitionsBefore, 57 TransitionsAfterwards, 5032 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 5 ChoiceCompositions, 1753 VarBasedMoverChecksPositive, 51 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 18566 CheckedPairsTotal, 36 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.5s, 109 ProgramPointsBefore, 70 ProgramPointsAfterwards, 109 TransitionsBefore, 70 TransitionsAfterwards, 7820 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 6 ChoiceCompositions, 2603 VarBasedMoverChecksPositive, 63 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 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 311747 states. Currently 62205 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Result: TIMEOUT, OverallTime: 167.7s, 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