/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 11:57:20,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 11:57:20,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 11:57:20,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 11:57:20,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 11:57:20,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 11:57:20,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 11:57:20,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 11:57:20,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 11:57:20,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 11:57:20,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 11:57:20,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 11:57:20,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 11:57:20,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 11:57:20,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 11:57:20,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 11:57:20,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 11:57:20,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 11:57:20,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 11:57:20,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 11:57:20,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 11:57:20,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 11:57:20,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 11:57:20,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 11:57:20,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 11:57:20,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 11:57:20,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 11:57:20,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 11:57:20,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 11:57:20,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 11:57:20,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 11:57:20,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 11:57:20,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 11:57:20,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 11:57:20,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 11:57:20,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 11:57:20,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-18 11:57:20,263 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 11:57:20,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 11:57:20,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 11:57:20,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 11:57:20,265 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 11:57:20,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 11:57:20,265 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 11:57:20,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 11:57:20,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 11:57:20,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 11:57:20,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 11:57:20,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 11:57:20,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 11:57:20,267 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 11:57:20,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 11:57:20,267 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 11:57:20,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 11:57:20,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 11:57:20,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 11:57:20,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 11:57:20,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 11:57:20,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 11:57:20,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 11:57:20,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 11:57:20,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 11:57:20,269 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 11:57:20,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 11:57:20,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 11:57:20,270 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 11:57:20,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 11:57:20,571 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 11:57:20,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 11:57:20,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 11:57:20,601 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 11:57:20,602 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 11:57:20,603 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2019-12-18 11:57:20,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d9acbd8/4fe9618a6b7244a4b9342cc4e11bfd01/FLAGca817a311 [2019-12-18 11:57:21,214 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 11:57:21,215 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2019-12-18 11:57:21,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d9acbd8/4fe9618a6b7244a4b9342cc4e11bfd01/FLAGca817a311 [2019-12-18 11:57:21,525 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d9acbd8/4fe9618a6b7244a4b9342cc4e11bfd01 [2019-12-18 11:57:21,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 11:57:21,538 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 11:57:21,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 11:57:21,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 11:57:21,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 11:57:21,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:57:21" (1/1) ... [2019-12-18 11:57:21,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@593db9fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:57:21, skipping insertion in model container [2019-12-18 11:57:21,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:57:21" (1/1) ... [2019-12-18 11:57:21,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 11:57:21,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 11:57:22,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 11:57:22,068 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 11:57:22,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 11:57:22,201 INFO L208 MainTranslator]: Completed translation [2019-12-18 11:57:22,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:57:22 WrapperNode [2019-12-18 11:57:22,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 11:57:22,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 11:57:22,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 11:57:22,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 11:57:22,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:57:22" (1/1) ... [2019-12-18 11:57:22,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:57:22" (1/1) ... [2019-12-18 11:57:22,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 11:57:22,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 11:57:22,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 11:57:22,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 11:57:22,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:57:22" (1/1) ... [2019-12-18 11:57:22,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:57:22" (1/1) ... [2019-12-18 11:57:22,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:57:22" (1/1) ... [2019-12-18 11:57:22,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:57:22" (1/1) ... [2019-12-18 11:57:22,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:57:22" (1/1) ... [2019-12-18 11:57:22,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:57:22" (1/1) ... [2019-12-18 11:57:22,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:57:22" (1/1) ... [2019-12-18 11:57:22,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 11:57:22,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 11:57:22,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 11:57:22,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 11:57:22,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:57:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 11:57:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 11:57:22,349 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 11:57:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 11:57:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 11:57:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 11:57:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 11:57:22,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 11:57:22,353 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 11:57:22,513 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 11:57:22,514 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 11:57:22,515 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2019-12-18 11:57:22,515 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-12-18 11:57:22,712 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 11:57:22,713 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-18 11:57:22,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:57:22 BoogieIcfgContainer [2019-12-18 11:57:22,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 11:57:22,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 11:57:22,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 11:57:22,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 11:57:22,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:57:21" (1/3) ... [2019-12-18 11:57:22,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609f1ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:57:22, skipping insertion in model container [2019-12-18 11:57:22,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:57:22" (2/3) ... [2019-12-18 11:57:22,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609f1ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:57:22, skipping insertion in model container [2019-12-18 11:57:22,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:57:22" (3/3) ... [2019-12-18 11:57:22,723 INFO L109 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf.i [2019-12-18 11:57:22,733 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 11:57:22,734 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 11:57:22,741 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 11:57:22,741 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 11:57:22,763 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:22,763 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:22,764 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:22,764 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:22,764 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:22,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:22,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:22,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:22,766 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:22,766 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:22,770 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:22,771 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:22,771 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:22,771 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:22,771 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:22,788 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-18 11:57:22,810 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:57:22,810 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:57:22,811 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:57:22,811 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:57:22,811 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:57:22,811 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:57:22,812 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:57:22,812 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:57:22,825 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 37 transitions [2019-12-18 11:57:22,827 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 37 places, 37 transitions [2019-12-18 11:57:22,863 INFO L126 PetriNetUnfolder]: 4/45 cut-off events. [2019-12-18 11:57:22,863 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:57:22,869 INFO L76 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 45 events. 4/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs. 5/43 useless extension candidates. Maximal degree in co-relation 26. Up to 4 conditions per place. [2019-12-18 11:57:22,871 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 37 places, 37 transitions [2019-12-18 11:57:22,887 INFO L126 PetriNetUnfolder]: 4/45 cut-off events. [2019-12-18 11:57:22,888 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:57:22,889 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 11:57:22,893 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 340 [2019-12-18 11:57:22,894 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:57:23,958 INFO L206 etLargeBlockEncoding]: Checked pairs total: 212 [2019-12-18 11:57:23,958 INFO L214 etLargeBlockEncoding]: Total number of compositions: 32 [2019-12-18 11:57:23,962 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 9 places, 8 transitions [2019-12-18 11:57:23,969 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2019-12-18 11:57:23,972 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-18 11:57:23,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 11:57:23,978 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:57:23,979 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 11:57:23,979 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:57:23,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:57:23,985 INFO L82 PathProgramCache]: Analyzing trace with hash 5302540, now seen corresponding path program 1 times [2019-12-18 11:57:23,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:57:23,995 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890625559] [2019-12-18 11:57:23,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:57:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:57:24,197 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 11:57:24,198 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890625559] [2019-12-18 11:57:24,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:57:24,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 11:57:24,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787852568] [2019-12-18 11:57:24,205 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:57:24,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:57:24,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:57:24,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:57:24,223 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-12-18 11:57:24,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:57:24,237 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-12-18 11:57:24,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:57:24,239 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-18 11:57:24,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:57:24,248 INFO L225 Difference]: With dead ends: 7 [2019-12-18 11:57:24,248 INFO L226 Difference]: Without dead ends: 7 [2019-12-18 11:57:24,249 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 11:57:24,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-12-18 11:57:24,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-18 11:57:24,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-18 11:57:24,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2019-12-18 11:57:24,276 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 4 [2019-12-18 11:57:24,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:57:24,276 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2019-12-18 11:57:24,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:57:24,276 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2019-12-18 11:57:24,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-18 11:57:24,277 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:57:24,277 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-18 11:57:24,277 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:57:24,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:57:24,278 INFO L82 PathProgramCache]: Analyzing trace with hash 800720775, now seen corresponding path program 1 times [2019-12-18 11:57:24,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:57:24,278 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293708123] [2019-12-18 11:57:24,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:57:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:57:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:57:24,332 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 11:57:24,332 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 11:57:24,334 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 11:57:24,334 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-18 11:57:24,342 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,342 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,343 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,343 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,343 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,344 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,344 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,344 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,345 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,345 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,346 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,347 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,350 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,351 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,351 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,351 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,356 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,356 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,359 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,359 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,360 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,360 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,360 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,360 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,361 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,362 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,362 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,363 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,363 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,363 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:24,364 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 11:57:24,365 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:57:24,365 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:57:24,365 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:57:24,365 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:57:24,365 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:57:24,365 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:57:24,365 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:57:24,365 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:57:24,367 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 55 transitions [2019-12-18 11:57:24,367 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 55 places, 55 transitions [2019-12-18 11:57:24,384 INFO L126 PetriNetUnfolder]: 7/72 cut-off events. [2019-12-18 11:57:24,384 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:57:24,386 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 11:57:24,390 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 55 places, 55 transitions [2019-12-18 11:57:24,409 INFO L126 PetriNetUnfolder]: 7/72 cut-off events. [2019-12-18 11:57:24,410 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:57:24,416 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 11:57:24,420 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1292 [2019-12-18 11:57:24,420 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:57:25,120 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3904 [2019-12-18 11:57:25,121 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-18 11:57:25,121 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 31 transitions [2019-12-18 11:57:25,170 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 772 states. [2019-12-18 11:57:25,170 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states. [2019-12-18 11:57:25,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 11:57:25,174 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:57:25,174 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2019-12-18 11:57:25,175 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:57:25,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:57:25,175 INFO L82 PathProgramCache]: Analyzing trace with hash 939679780, now seen corresponding path program 1 times [2019-12-18 11:57:25,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:57:25,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466332354] [2019-12-18 11:57:25,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:57:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:57:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:57:25,253 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 11:57:25,253 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 11:57:25,254 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 11:57:25,254 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-18 11:57:25,262 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,262 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,262 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,262 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,263 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,263 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,263 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,263 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,264 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,264 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,264 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,265 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,265 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,265 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,265 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,265 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,266 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,266 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,266 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,266 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,267 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,267 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,267 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,267 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,268 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,268 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,268 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,268 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,269 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,269 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,269 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,270 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,270 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,270 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,270 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,272 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,272 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,272 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,272 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,273 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,274 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,274 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,274 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,275 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,275 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:25,277 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-18 11:57:25,277 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:57:25,278 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:57:25,278 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:57:25,278 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:57:25,278 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:57:25,278 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:57:25,278 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:57:25,278 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:57:25,281 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 73 transitions [2019-12-18 11:57:25,281 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 73 places, 73 transitions [2019-12-18 11:57:25,299 INFO L126 PetriNetUnfolder]: 10/99 cut-off events. [2019-12-18 11:57:25,299 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:57:25,302 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 11:57:25,306 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 73 places, 73 transitions [2019-12-18 11:57:25,322 INFO L126 PetriNetUnfolder]: 10/99 cut-off events. [2019-12-18 11:57:25,322 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:57:25,324 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 11:57:25,329 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2856 [2019-12-18 11:57:25,329 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:57:26,097 INFO L206 etLargeBlockEncoding]: Checked pairs total: 10021 [2019-12-18 11:57:26,097 INFO L214 etLargeBlockEncoding]: Total number of compositions: 30 [2019-12-18 11:57:26,097 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 44 transitions [2019-12-18 11:57:26,761 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 9268 states. [2019-12-18 11:57:26,761 INFO L276 IsEmpty]: Start isEmpty. Operand 9268 states. [2019-12-18 11:57:26,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 11:57:26,770 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:57:26,770 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:57:26,771 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:57:26,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:57:26,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1241182280, now seen corresponding path program 1 times [2019-12-18 11:57:26,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:57:26,774 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074733344] [2019-12-18 11:57:26,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:57:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:57:26,870 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 11:57:26,871 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074733344] [2019-12-18 11:57:26,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:57:26,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 11:57:26,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951910370] [2019-12-18 11:57:26,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:57:26,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:57:26,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:57:26,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:57:26,873 INFO L87 Difference]: Start difference. First operand 9268 states. Second operand 3 states. [2019-12-18 11:57:27,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:57:27,022 INFO L93 Difference]: Finished difference Result 6730 states and 23379 transitions. [2019-12-18 11:57:27,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:57:27,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-18 11:57:27,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:57:27,090 INFO L225 Difference]: With dead ends: 6730 [2019-12-18 11:57:27,090 INFO L226 Difference]: Without dead ends: 6730 [2019-12-18 11:57:27,091 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 11:57:27,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6730 states. [2019-12-18 11:57:27,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6730 to 6118. [2019-12-18 11:57:27,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6118 states. [2019-12-18 11:57:27,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 21468 transitions. [2019-12-18 11:57:27,525 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 21468 transitions. Word has length 11 [2019-12-18 11:57:27,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:57:27,525 INFO L462 AbstractCegarLoop]: Abstraction has 6118 states and 21468 transitions. [2019-12-18 11:57:27,525 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:57:27,526 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 21468 transitions. [2019-12-18 11:57:27,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 11:57:27,532 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:57:27,532 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:57:27,533 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:57:27,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:57:27,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1242075049, now seen corresponding path program 1 times [2019-12-18 11:57:27,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:57:27,534 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487813836] [2019-12-18 11:57:27,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:57:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:57:27,662 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 11:57:27,663 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487813836] [2019-12-18 11:57:27,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:57:27,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 11:57:27,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730186568] [2019-12-18 11:57:27,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 11:57:27,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:57:27,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 11:57:27,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 11:57:27,667 INFO L87 Difference]: Start difference. First operand 6118 states and 21468 transitions. Second operand 5 states. [2019-12-18 11:57:28,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:57:28,199 INFO L93 Difference]: Finished difference Result 12178 states and 41275 transitions. [2019-12-18 11:57:28,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-18 11:57:28,200 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-18 11:57:28,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:57:28,306 INFO L225 Difference]: With dead ends: 12178 [2019-12-18 11:57:28,307 INFO L226 Difference]: Without dead ends: 12178 [2019-12-18 11:57:28,311 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 11:57:28,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12178 states. [2019-12-18 11:57:28,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12178 to 7627. [2019-12-18 11:57:28,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7627 states. [2019-12-18 11:57:28,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7627 states to 7627 states and 26436 transitions. [2019-12-18 11:57:28,721 INFO L78 Accepts]: Start accepts. Automaton has 7627 states and 26436 transitions. Word has length 11 [2019-12-18 11:57:28,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:57:28,722 INFO L462 AbstractCegarLoop]: Abstraction has 7627 states and 26436 transitions. [2019-12-18 11:57:28,722 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 11:57:28,722 INFO L276 IsEmpty]: Start isEmpty. Operand 7627 states and 26436 transitions. [2019-12-18 11:57:28,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 11:57:28,724 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:57:28,724 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2019-12-18 11:57:28,724 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:57:28,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:57:28,724 INFO L82 PathProgramCache]: Analyzing trace with hash -21046912, now seen corresponding path program 1 times [2019-12-18 11:57:28,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:57:28,725 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967812752] [2019-12-18 11:57:28,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:57:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:57:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:57:28,780 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 11:57:28,780 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 11:57:28,780 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 11:57:28,781 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-18 11:57:28,792 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,792 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,792 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,792 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,792 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,793 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,793 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,793 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,794 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,794 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,797 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,797 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,797 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,797 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,798 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,798 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,798 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,798 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,799 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,799 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,799 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,799 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,799 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,800 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,800 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,800 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,800 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,801 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,801 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,801 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,802 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,802 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,802 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,802 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,802 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,803 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,803 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,803 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,803 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,803 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,804 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,804 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,804 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,806 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,806 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,809 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,809 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,809 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,809 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,810 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,811 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,811 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,811 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,811 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,811 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,812 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,813 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,813 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,813 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,813 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:57:28,814 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-18 11:57:28,814 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:57:28,814 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:57:28,814 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:57:28,814 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:57:28,814 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:57:28,815 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:57:28,815 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:57:28,815 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:57:28,817 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 91 transitions [2019-12-18 11:57:28,817 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions [2019-12-18 11:57:28,868 INFO L126 PetriNetUnfolder]: 13/126 cut-off events. [2019-12-18 11:57:28,868 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:57:28,871 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 11:57:28,878 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions [2019-12-18 11:57:28,894 INFO L126 PetriNetUnfolder]: 13/126 cut-off events. [2019-12-18 11:57:28,894 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:57:28,897 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 11:57:28,905 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5032 [2019-12-18 11:57:28,905 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:57:29,730 INFO L206 etLargeBlockEncoding]: Checked pairs total: 18566 [2019-12-18 11:57:29,731 INFO L214 etLargeBlockEncoding]: Total number of compositions: 36 [2019-12-18 11:57:29,731 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 57 transitions [2019-12-18 11:57:57,105 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 111220 states. [2019-12-18 11:57:57,105 INFO L276 IsEmpty]: Start isEmpty. Operand 111220 states. [2019-12-18 11:57:57,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 11:57:57,106 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:57:57,106 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:57:57,107 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 11:57:57,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:57:57,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1804058354, now seen corresponding path program 1 times [2019-12-18 11:57:57,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:57:57,108 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836209321] [2019-12-18 11:57:57,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:57:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:57:57,155 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 11:57:57,156 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836209321] [2019-12-18 11:57:57,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:57:57,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 11:57:57,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74795373] [2019-12-18 11:57:57,157 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 11:57:57,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:57:57,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 11:57:57,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 11:57:57,157 INFO L87 Difference]: Start difference. First operand 111220 states. Second operand 5 states. [2019-12-18 11:58:00,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:58:00,593 INFO L93 Difference]: Finished difference Result 149526 states and 663692 transitions. [2019-12-18 11:58:00,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 11:58:00,594 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-18 11:58:00,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:58:01,572 INFO L225 Difference]: With dead ends: 149526 [2019-12-18 11:58:01,572 INFO L226 Difference]: Without dead ends: 149526 [2019-12-18 11:58:01,573 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 11:58:07,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149526 states. [2019-12-18 11:58:10,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149526 to 90340. [2019-12-18 11:58:10,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90340 states. [2019-12-18 11:58:14,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90340 states to 90340 states and 415857 transitions. [2019-12-18 11:58:14,415 INFO L78 Accepts]: Start accepts. Automaton has 90340 states and 415857 transitions. Word has length 11 [2019-12-18 11:58:14,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:58:14,415 INFO L462 AbstractCegarLoop]: Abstraction has 90340 states and 415857 transitions. [2019-12-18 11:58:14,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 11:58:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 90340 states and 415857 transitions. [2019-12-18 11:58:14,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 11:58:14,416 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:58:14,416 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:58:14,416 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 11:58:14,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:58:14,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1803104081, now seen corresponding path program 1 times [2019-12-18 11:58:14,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:58:14,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026759653] [2019-12-18 11:58:14,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:58:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:58:14,465 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 11:58:14,466 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026759653] [2019-12-18 11:58:14,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:58:14,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 11:58:14,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828341603] [2019-12-18 11:58:14,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:58:14,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:58:14,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:58:14,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:58:14,467 INFO L87 Difference]: Start difference. First operand 90340 states and 415857 transitions. Second operand 3 states. [2019-12-18 11:58:15,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:58:15,042 INFO L93 Difference]: Finished difference Result 116496 states and 510416 transitions. [2019-12-18 11:58:15,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:58:15,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-18 11:58:15,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:58:15,385 INFO L225 Difference]: With dead ends: 116496 [2019-12-18 11:58:15,385 INFO L226 Difference]: Without dead ends: 116496 [2019-12-18 11:58:15,386 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 11:58:22,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116496 states. [2019-12-18 11:58:24,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116496 to 112020. [2019-12-18 11:58:24,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112020 states. [2019-12-18 11:58:25,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112020 states to 112020 states and 492483 transitions. [2019-12-18 11:58:25,122 INFO L78 Accepts]: Start accepts. Automaton has 112020 states and 492483 transitions. Word has length 11 [2019-12-18 11:58:25,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:58:25,122 INFO L462 AbstractCegarLoop]: Abstraction has 112020 states and 492483 transitions. [2019-12-18 11:58:25,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:58:25,122 INFO L276 IsEmpty]: Start isEmpty. Operand 112020 states and 492483 transitions. [2019-12-18 11:58:25,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-18 11:58:25,124 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:58:25,124 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:58:25,124 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 11:58:25,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:58:25,124 INFO L82 PathProgramCache]: Analyzing trace with hash 748985780, now seen corresponding path program 1 times [2019-12-18 11:58:25,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:58:25,125 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954921417] [2019-12-18 11:58:25,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:58:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:58:25,193 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 11:58:25,194 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954921417] [2019-12-18 11:58:25,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:58:25,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 11:58:25,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856282372] [2019-12-18 11:58:25,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 11:58:25,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:58:25,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 11:58:25,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 11:58:25,196 INFO L87 Difference]: Start difference. First operand 112020 states and 492483 transitions. Second operand 5 states. [2019-12-18 11:58:31,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:58:31,208 INFO L93 Difference]: Finished difference Result 207488 states and 889413 transitions. [2019-12-18 11:58:31,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-18 11:58:31,212 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-18 11:58:31,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:58:31,860 INFO L225 Difference]: With dead ends: 207488 [2019-12-18 11:58:31,860 INFO L226 Difference]: Without dead ends: 207488 [2019-12-18 11:58:31,860 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 11:58:36,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207488 states. [2019-12-18 11:58:39,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207488 to 126524. [2019-12-18 11:58:39,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126524 states. [2019-12-18 11:58:39,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126524 states to 126524 states and 554674 transitions. [2019-12-18 11:58:39,981 INFO L78 Accepts]: Start accepts. Automaton has 126524 states and 554674 transitions. Word has length 14 [2019-12-18 11:58:39,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:58:39,981 INFO L462 AbstractCegarLoop]: Abstraction has 126524 states and 554674 transitions. [2019-12-18 11:58:39,981 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 11:58:39,981 INFO L276 IsEmpty]: Start isEmpty. Operand 126524 states and 554674 transitions. [2019-12-18 11:58:39,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-18 11:58:39,982 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:58:39,982 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2019-12-18 11:58:39,982 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 11:58:39,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:58:39,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1619668708, now seen corresponding path program 1 times [2019-12-18 11:58:39,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:58:39,983 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643836334] [2019-12-18 11:58:39,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:58:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:58:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:58:40,017 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 11:58:40,017 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 11:58:40,017 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 11:58:40,017 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-18 11:58:40,025 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,026 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,026 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,026 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,026 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,026 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,026 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,027 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,027 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,027 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,027 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,028 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,028 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,028 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,028 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,028 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,028 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,028 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,029 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,029 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,029 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,029 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,029 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,030 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,030 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,030 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,030 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,030 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,031 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,031 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,031 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,031 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,032 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,032 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,032 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,032 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,032 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,032 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,033 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,033 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,033 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,033 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,033 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,033 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,034 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,034 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,034 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,034 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,034 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,035 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,035 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,035 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,036 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,036 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,036 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,037 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,037 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,038 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,038 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,038 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,039 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,039 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,039 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,039 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,040 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,041 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,041 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,041 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,041 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,041 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,043 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,043 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,043 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,043 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,044 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:58:40,045 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-18 11:58:40,046 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:58:40,046 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:58:40,046 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:58:40,046 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:58:40,046 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:58:40,046 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:58:40,046 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:58:40,046 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:58:40,051 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 109 transitions [2019-12-18 11:58:40,051 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions [2019-12-18 11:58:40,075 INFO L126 PetriNetUnfolder]: 16/153 cut-off events. [2019-12-18 11:58:40,076 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:58:40,080 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 11:58:40,092 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions [2019-12-18 11:58:40,109 INFO L126 PetriNetUnfolder]: 16/153 cut-off events. [2019-12-18 11:58:40,109 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:58:40,113 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 11:58:40,125 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 7820 [2019-12-18 11:58:40,125 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:58:41,240 INFO L206 etLargeBlockEncoding]: Checked pairs total: 29707 [2019-12-18 11:58:41,240 INFO L214 etLargeBlockEncoding]: Total number of compositions: 42 [2019-12-18 11:58:41,241 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 70 transitions Received shutdown request... [2019-12-18 12:01:28,142 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-18 12:01:28,145 WARN L227 ceAbstractionStarter]: Timeout [2019-12-18 12:01:28,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 12:01:28 BasicIcfg [2019-12-18 12:01:28,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 12:01:28,148 INFO L168 Benchmark]: Toolchain (without parser) took 246610.51 ms. Allocated memory was 136.3 MB in the beginning and 2.5 GB in the end (delta: 2.4 GB). Free memory was 99.5 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2019-12-18 12:01:28,157 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-18 12:01:28,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.40 ms. Allocated memory was 136.3 MB in the beginning and 199.8 MB in the end (delta: 63.4 MB). Free memory was 99.1 MB in the beginning and 158.7 MB in the end (delta: -59.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-12-18 12:01:28,158 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.27 ms. Allocated memory is still 199.8 MB. Free memory was 158.7 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 12:01:28,160 INFO L168 Benchmark]: Boogie Preprocessor took 28.69 ms. Allocated memory is still 199.8 MB. Free memory was 156.6 MB in the beginning and 155.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 12:01:28,161 INFO L168 Benchmark]: RCFGBuilder took 432.46 ms. Allocated memory is still 199.8 MB. Free memory was 155.2 MB in the beginning and 138.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. [2019-12-18 12:01:28,166 INFO L168 Benchmark]: TraceAbstraction took 245430.18 ms. Allocated memory was 199.8 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 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2019-12-18 12:01:28,172 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 663.40 ms. Allocated memory was 136.3 MB in the beginning and 199.8 MB in the end (delta: 63.4 MB). Free memory was 99.1 MB in the beginning and 158.7 MB in the end (delta: -59.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.27 ms. Allocated memory is still 199.8 MB. Free memory was 158.7 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.69 ms. Allocated memory is still 199.8 MB. Free memory was 156.6 MB in the beginning and 155.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.46 ms. Allocated memory is still 199.8 MB. Free memory was 155.2 MB in the beginning and 138.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 245430.18 ms. Allocated memory was 199.8 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 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 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: 0.7s, 55 ProgramPointsBefore, 31 ProgramPointsAfterwards, 55 TransitionsBefore, 31 TransitionsAfterwards, 1292 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 462 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 16 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 3904 CheckedPairsTotal, 26 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.8s, 73 ProgramPointsBefore, 44 ProgramPointsAfterwards, 73 TransitionsBefore, 44 TransitionsAfterwards, 2856 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 1046 VarBasedMoverChecksPositive, 67 VarBasedMoverChecksNegative, 29 SemBasedMoverChecksPositive, 70 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 10021 CheckedPairsTotal, 30 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 91 ProgramPointsBefore, 57 ProgramPointsAfterwards, 91 TransitionsBefore, 57 TransitionsAfterwards, 5032 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 5 ChoiceCompositions, 1779 VarBasedMoverChecksPositive, 71 VarBasedMoverChecksNegative, 29 SemBasedMoverChecksPositive, 82 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 18566 CheckedPairsTotal, 36 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 109 ProgramPointsBefore, 70 ProgramPointsAfterwards, 109 TransitionsBefore, 70 TransitionsAfterwards, 7820 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 6 ChoiceCompositions, 2630 VarBasedMoverChecksPositive, 88 VarBasedMoverChecksNegative, 37 SemBasedMoverChecksPositive, 103 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 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 306347 states. Currently 61352 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Result: TIMEOUT, OverallTime: 168.0s, 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