/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/01_inc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 04:45:21,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 04:45:21,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 04:45:21,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 04:45:21,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 04:45:21,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 04:45:21,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 04:45:21,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 04:45:21,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 04:45:21,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 04:45:21,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 04:45:21,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 04:45:21,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 04:45:21,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 04:45:21,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 04:45:21,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 04:45:21,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 04:45:21,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 04:45:21,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 04:45:21,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 04:45:21,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 04:45:21,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 04:45:21,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 04:45:21,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 04:45:21,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 04:45:21,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 04:45:21,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 04:45:21,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 04:45:21,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 04:45:21,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 04:45:21,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 04:45:21,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 04:45:21,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 04:45:21,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 04:45:21,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 04:45:21,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 04:45:21,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 04:45:21,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 04:45:21,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 04:45:21,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 04:45:21,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 04:45:21,355 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-27 04:45:21,381 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 04:45:21,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 04:45:21,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 04:45:21,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 04:45:21,383 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 04:45:21,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 04:45:21,384 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 04:45:21,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 04:45:21,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 04:45:21,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 04:45:21,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 04:45:21,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 04:45:21,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 04:45:21,388 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 04:45:21,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 04:45:21,388 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 04:45:21,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 04:45:21,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 04:45:21,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 04:45:21,389 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 04:45:21,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 04:45:21,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 04:45:21,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 04:45:21,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 04:45:21,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 04:45:21,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 04:45:21,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 04:45:21,391 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 04:45:21,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 04:45:21,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 04:45:21,683 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 04:45:21,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 04:45:21,705 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 04:45:21,706 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 04:45:21,707 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 04:45:21,708 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/01_inc.i [2019-12-27 04:45:21,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c6707ef7/a16173a8c8dc40c18917a38480fb29ef/FLAGe5e288e68 [2019-12-27 04:45:22,333 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 04:45:22,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/01_inc.i [2019-12-27 04:45:22,355 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c6707ef7/a16173a8c8dc40c18917a38480fb29ef/FLAGe5e288e68 [2019-12-27 04:45:22,589 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c6707ef7/a16173a8c8dc40c18917a38480fb29ef [2019-12-27 04:45:22,600 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 04:45:22,604 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 04:45:22,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 04:45:22,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 04:45:22,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 04:45:22,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:45:22" (1/1) ... [2019-12-27 04:45:22,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310d58ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:45:22, skipping insertion in model container [2019-12-27 04:45:22,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:45:22" (1/1) ... [2019-12-27 04:45:22,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 04:45:22,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 04:45:23,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:45:23,105 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 04:45:23,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:45:23,236 INFO L208 MainTranslator]: Completed translation [2019-12-27 04:45:23,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:45:23 WrapperNode [2019-12-27 04:45:23,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 04:45:23,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 04:45:23,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 04:45:23,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 04:45:23,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:45:23" (1/1) ... [2019-12-27 04:45:23,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:45:23" (1/1) ... [2019-12-27 04:45:23,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 04:45:23,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 04:45:23,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 04:45:23,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 04:45:23,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:45:23" (1/1) ... [2019-12-27 04:45:23,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:45:23" (1/1) ... [2019-12-27 04:45:23,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:45:23" (1/1) ... [2019-12-27 04:45:23,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:45:23" (1/1) ... [2019-12-27 04:45:23,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:45:23" (1/1) ... [2019-12-27 04:45:23,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:45:23" (1/1) ... [2019-12-27 04:45:23,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:45:23" (1/1) ... [2019-12-27 04:45:23,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 04:45:23,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 04:45:23,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 04:45:23,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 04:45:23,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:45:23" (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 [2019-12-27 04:45:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 04:45:23,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 04:45:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 04:45:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 04:45:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 04:45:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 04:45:23,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 04:45:23,375 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 04:45:23,527 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-27 04:45:23,528 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-27 04:45:23,529 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-12-27 04:45:23,663 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 04:45:23,664 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-27 04:45:23,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:45:23 BoogieIcfgContainer [2019-12-27 04:45:23,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 04:45:23,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 04:45:23,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 04:45:23,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 04:45:23,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 04:45:22" (1/3) ... [2019-12-27 04:45:23,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7658b01c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:45:23, skipping insertion in model container [2019-12-27 04:45:23,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:45:23" (2/3) ... [2019-12-27 04:45:23,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7658b01c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:45:23, skipping insertion in model container [2019-12-27 04:45:23,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:45:23" (3/3) ... [2019-12-27 04:45:23,673 INFO L109 eAbstractionObserver]: Analyzing ICFG 01_inc.i [2019-12-27 04:45:23,685 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 04:45:23,686 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 04:45:23,693 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 04:45:23,694 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 04:45:23,717 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,718 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,718 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,718 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,719 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,719 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,720 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,720 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,720 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,721 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,721 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,722 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,722 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,726 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,726 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,727 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,728 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,729 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:23,748 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-27 04:45:23,764 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:45:23,764 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:45:23,764 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:45:23,764 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:45:23,764 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:45:23,764 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:45:23,765 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:45:23,765 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:45:23,775 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 32 transitions [2019-12-27 04:45:23,777 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 32 places, 32 transitions [2019-12-27 04:45:23,813 INFO L132 PetriNetUnfolder]: 4/40 cut-off events. [2019-12-27 04:45:23,814 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:45:23,819 INFO L76 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 4/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs. 0/33 useless extension candidates. Maximal degree in co-relation 22. Up to 4 conditions per place. [2019-12-27 04:45:23,822 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 32 places, 32 transitions [2019-12-27 04:45:23,836 INFO L132 PetriNetUnfolder]: 4/40 cut-off events. [2019-12-27 04:45:23,837 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:45:23,838 INFO L76 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 4/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs. 0/33 useless extension candidates. Maximal degree in co-relation 22. Up to 4 conditions per place. [2019-12-27 04:45:23,840 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 260 [2019-12-27 04:45:23,841 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 04:45:24,833 INFO L206 etLargeBlockEncoding]: Checked pairs total: 191 [2019-12-27 04:45:24,833 INFO L214 etLargeBlockEncoding]: Total number of compositions: 30 [2019-12-27 04:45:24,837 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 9 places, 8 transitions [2019-12-27 04:45:24,850 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2019-12-27 04:45:24,853 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-27 04:45:24,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-27 04:45:24,865 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:45:24,866 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-27 04:45:24,866 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 04:45:24,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:45:24,873 INFO L82 PathProgramCache]: Analyzing trace with hash 4724429, now seen corresponding path program 1 times [2019-12-27 04:45:24,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:45:24,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789930135] [2019-12-27 04:45:24,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:45:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:45:25,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:45:25,018 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789930135] [2019-12-27 04:45:25,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:45:25,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 04:45:25,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697105870] [2019-12-27 04:45:25,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 04:45:25,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:45:25,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 04:45:25,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 04:45:25,043 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-12-27 04:45:25,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:45:25,057 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2019-12-27 04:45:25,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 04:45:25,058 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2019-12-27 04:45:25,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:45:25,068 INFO L225 Difference]: With dead ends: 11 [2019-12-27 04:45:25,068 INFO L226 Difference]: Without dead ends: 11 [2019-12-27 04:45:25,069 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 04:45:25,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-27 04:45:25,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-27 04:45:25,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-27 04:45:25,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-27 04:45:25,103 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2019-12-27 04:45:25,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:45:25,103 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-27 04:45:25,103 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 04:45:25,103 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-27 04:45:25,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-27 04:45:25,104 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:45:25,104 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-27 04:45:25,104 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 04:45:25,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:45:25,105 INFO L82 PathProgramCache]: Analyzing trace with hash 245171091, now seen corresponding path program 1 times [2019-12-27 04:45:25,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:45:25,106 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972684680] [2019-12-27 04:45:25,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:45:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:45:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:45:25,163 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 04:45:25,163 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 04:45:25,165 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 04:45:25,165 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 04:45:25,171 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,172 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,172 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,172 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,172 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,173 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,173 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,173 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,173 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,174 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,174 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,174 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,175 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,175 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,175 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,175 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,176 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,176 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,176 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,176 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,177 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,177 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,177 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,177 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,178 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,178 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,178 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,179 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,179 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,179 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,179 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,181 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,181 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,182 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,182 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,182 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:25,184 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 04:45:25,184 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:45:25,184 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:45:25,184 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:45:25,185 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:45:25,185 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:45:25,185 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:45:25,185 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:45:25,185 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:45:25,187 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 46 transitions [2019-12-27 04:45:25,188 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 46 places, 46 transitions [2019-12-27 04:45:25,204 INFO L132 PetriNetUnfolder]: 7/63 cut-off events. [2019-12-27 04:45:25,205 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 04:45:25,206 INFO L76 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 63 events. 7/63 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 141 event pairs. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 6 conditions per place. [2019-12-27 04:45:25,210 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 46 places, 46 transitions [2019-12-27 04:45:25,224 INFO L132 PetriNetUnfolder]: 7/63 cut-off events. [2019-12-27 04:45:25,225 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 04:45:25,226 INFO L76 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 63 events. 7/63 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 141 event pairs. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 6 conditions per place. [2019-12-27 04:45:25,229 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 884 [2019-12-27 04:45:25,229 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 04:45:25,686 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2180 [2019-12-27 04:45:25,686 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-27 04:45:25,686 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 22 transitions [2019-12-27 04:45:25,704 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 312 states. [2019-12-27 04:45:25,704 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2019-12-27 04:45:25,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 04:45:25,706 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:45:25,706 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:45:25,706 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:45:25,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:45:25,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1963880529, now seen corresponding path program 1 times [2019-12-27 04:45:25,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:45:25,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514615176] [2019-12-27 04:45:25,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:45:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:45:25,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:45:25,924 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514615176] [2019-12-27 04:45:25,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:45:25,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:45:25,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799736031] [2019-12-27 04:45:25,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 04:45:25,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:45:25,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 04:45:25,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:45:25,926 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 5 states. [2019-12-27 04:45:26,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:45:26,104 INFO L93 Difference]: Finished difference Result 325 states and 780 transitions. [2019-12-27 04:45:26,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:45:26,110 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-12-27 04:45:26,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:45:26,126 INFO L225 Difference]: With dead ends: 325 [2019-12-27 04:45:26,127 INFO L226 Difference]: Without dead ends: 325 [2019-12-27 04:45:26,130 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-27 04:45:26,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-12-27 04:45:26,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 261. [2019-12-27 04:45:26,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2019-12-27 04:45:26,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 652 transitions. [2019-12-27 04:45:26,178 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 652 transitions. Word has length 8 [2019-12-27 04:45:26,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:45:26,179 INFO L462 AbstractCegarLoop]: Abstraction has 261 states and 652 transitions. [2019-12-27 04:45:26,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 04:45:26,179 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 652 transitions. [2019-12-27 04:45:26,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 04:45:26,180 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:45:26,180 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2019-12-27 04:45:26,181 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:45:26,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:45:26,181 INFO L82 PathProgramCache]: Analyzing trace with hash -167871164, now seen corresponding path program 1 times [2019-12-27 04:45:26,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:45:26,182 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733554979] [2019-12-27 04:45:26,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:45:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:45:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:45:26,212 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 04:45:26,212 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 04:45:26,213 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 04:45:26,213 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 04:45:26,219 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,219 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,220 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,220 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,220 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,220 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,221 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,221 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,221 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,221 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,221 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,222 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,222 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,222 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,223 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,223 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,223 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,223 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,223 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,224 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,224 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,224 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,224 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,224 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,225 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,225 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,225 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,225 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,226 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,226 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,226 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,226 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,226 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,227 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,227 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,227 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,227 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,228 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,228 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,228 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,228 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,229 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,229 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,229 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,231 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,231 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,231 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,231 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,231 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,235 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,235 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,235 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,235 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,236 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:26,237 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 04:45:26,237 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:45:26,238 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:45:26,238 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:45:26,238 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:45:26,238 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:45:26,238 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:45:26,238 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:45:26,238 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:45:26,242 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 60 transitions [2019-12-27 04:45:26,242 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions [2019-12-27 04:45:26,275 INFO L132 PetriNetUnfolder]: 10/86 cut-off events. [2019-12-27 04:45:26,275 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 04:45:26,278 INFO L76 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 86 events. 10/86 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 210 event pairs. 0/69 useless extension candidates. Maximal degree in co-relation 67. Up to 8 conditions per place. [2019-12-27 04:45:26,285 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions [2019-12-27 04:45:26,315 INFO L132 PetriNetUnfolder]: 10/86 cut-off events. [2019-12-27 04:45:26,315 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 04:45:26,320 INFO L76 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 86 events. 10/86 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 210 event pairs. 0/69 useless extension candidates. Maximal degree in co-relation 67. Up to 8 conditions per place. [2019-12-27 04:45:26,324 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1872 [2019-12-27 04:45:26,324 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 04:45:26,792 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5122 [2019-12-27 04:45:26,792 INFO L214 etLargeBlockEncoding]: Total number of compositions: 34 [2019-12-27 04:45:26,792 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 30 transitions [2019-12-27 04:45:26,917 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2188 states. [2019-12-27 04:45:26,919 INFO L276 IsEmpty]: Start isEmpty. Operand 2188 states. [2019-12-27 04:45:26,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 04:45:26,922 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:45:26,922 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:45:26,922 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:45:26,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:45:26,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1203016923, now seen corresponding path program 1 times [2019-12-27 04:45:26,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:45:26,924 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751100734] [2019-12-27 04:45:26,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:45:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:45:27,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:45:27,068 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751100734] [2019-12-27 04:45:27,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:45:27,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:45:27,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075665395] [2019-12-27 04:45:27,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 04:45:27,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:45:27,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 04:45:27,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:45:27,070 INFO L87 Difference]: Start difference. First operand 2188 states. Second operand 5 states. [2019-12-27 04:45:27,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:45:27,225 INFO L93 Difference]: Finished difference Result 2674 states and 9044 transitions. [2019-12-27 04:45:27,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:45:27,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-12-27 04:45:27,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:45:27,254 INFO L225 Difference]: With dead ends: 2674 [2019-12-27 04:45:27,254 INFO L226 Difference]: Without dead ends: 2674 [2019-12-27 04:45:27,254 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:45:27,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2019-12-27 04:45:27,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 1998. [2019-12-27 04:45:27,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1998 states. [2019-12-27 04:45:27,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 7014 transitions. [2019-12-27 04:45:27,365 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 7014 transitions. Word has length 8 [2019-12-27 04:45:27,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:45:27,365 INFO L462 AbstractCegarLoop]: Abstraction has 1998 states and 7014 transitions. [2019-12-27 04:45:27,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 04:45:27,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 7014 transitions. [2019-12-27 04:45:27,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:45:27,367 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:45:27,367 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:45:27,368 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:45:27,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:45:27,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1304332861, now seen corresponding path program 1 times [2019-12-27 04:45:27,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:45:27,369 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433142549] [2019-12-27 04:45:27,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:45:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:45:27,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 04:45:27,439 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433142549] [2019-12-27 04:45:27,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:45:27,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:45:27,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464343480] [2019-12-27 04:45:27,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 04:45:27,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:45:27,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 04:45:27,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:45:27,441 INFO L87 Difference]: Start difference. First operand 1998 states and 7014 transitions. Second operand 5 states. [2019-12-27 04:45:27,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:45:27,606 INFO L93 Difference]: Finished difference Result 3058 states and 10283 transitions. [2019-12-27 04:45:27,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:45:27,607 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 04:45:27,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:45:27,633 INFO L225 Difference]: With dead ends: 3058 [2019-12-27 04:45:27,634 INFO L226 Difference]: Without dead ends: 3058 [2019-12-27 04:45:27,635 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:45:27,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2019-12-27 04:45:27,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 2270. [2019-12-27 04:45:27,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2270 states. [2019-12-27 04:45:27,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 7909 transitions. [2019-12-27 04:45:27,786 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 7909 transitions. Word has length 11 [2019-12-27 04:45:27,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:45:27,787 INFO L462 AbstractCegarLoop]: Abstraction has 2270 states and 7909 transitions. [2019-12-27 04:45:27,787 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 04:45:27,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 7909 transitions. [2019-12-27 04:45:27,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 04:45:27,789 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:45:27,789 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2019-12-27 04:45:27,789 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:45:27,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:45:27,789 INFO L82 PathProgramCache]: Analyzing trace with hash 828376654, now seen corresponding path program 1 times [2019-12-27 04:45:27,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:45:27,790 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440315011] [2019-12-27 04:45:27,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:45:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:45:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:45:27,821 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 04:45:27,821 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 04:45:27,821 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 04:45:27,821 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 04:45:27,828 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,828 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,828 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,829 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,829 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,829 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,830 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,830 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,830 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,831 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,831 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,831 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,832 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,832 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,832 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,833 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,833 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,833 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,833 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,834 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,834 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,834 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,834 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,834 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,835 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,835 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,835 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,835 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,835 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,836 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,836 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,836 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,836 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,837 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,837 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,837 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,837 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,837 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,838 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,838 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,838 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,838 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,839 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,839 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,839 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,840 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,840 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,840 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,841 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,841 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,841 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,842 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,842 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,842 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,843 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,843 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,843 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,845 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,845 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,846 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,846 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,846 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,848 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,848 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,848 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,849 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,849 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,851 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,851 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,852 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,852 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,852 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:27,854 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 04:45:27,855 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:45:27,855 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:45:27,855 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:45:27,855 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:45:27,855 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:45:27,856 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:45:27,856 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:45:27,856 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:45:27,858 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 74 transitions [2019-12-27 04:45:27,858 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 74 places, 74 transitions [2019-12-27 04:45:27,875 INFO L132 PetriNetUnfolder]: 13/109 cut-off events. [2019-12-27 04:45:27,875 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 04:45:27,878 INFO L76 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 109 events. 13/109 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 283 event pairs. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 10 conditions per place. [2019-12-27 04:45:27,886 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 74 places, 74 transitions [2019-12-27 04:45:27,905 INFO L132 PetriNetUnfolder]: 13/109 cut-off events. [2019-12-27 04:45:27,905 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 04:45:27,908 INFO L76 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 109 events. 13/109 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 283 event pairs. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 10 conditions per place. [2019-12-27 04:45:27,916 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3224 [2019-12-27 04:45:27,916 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 04:45:28,495 INFO L206 etLargeBlockEncoding]: Checked pairs total: 9341 [2019-12-27 04:45:28,495 INFO L214 etLargeBlockEncoding]: Total number of compositions: 42 [2019-12-27 04:45:28,495 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 37 transitions [2019-12-27 04:45:29,532 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13605 states. [2019-12-27 04:45:29,533 INFO L276 IsEmpty]: Start isEmpty. Operand 13605 states. [2019-12-27 04:45:29,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 04:45:29,533 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:45:29,533 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:45:29,533 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 04:45:29,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:45:29,534 INFO L82 PathProgramCache]: Analyzing trace with hash 2031187017, now seen corresponding path program 1 times [2019-12-27 04:45:29,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:45:29,535 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985572986] [2019-12-27 04:45:29,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:45:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:45:29,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:45:29,623 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985572986] [2019-12-27 04:45:29,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:45:29,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:45:29,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767927052] [2019-12-27 04:45:29,624 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 04:45:29,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:45:29,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 04:45:29,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:45:29,625 INFO L87 Difference]: Start difference. First operand 13605 states. Second operand 5 states. [2019-12-27 04:45:29,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:45:29,989 INFO L93 Difference]: Finished difference Result 17829 states and 77939 transitions. [2019-12-27 04:45:29,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:45:29,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-12-27 04:45:29,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:45:30,118 INFO L225 Difference]: With dead ends: 17829 [2019-12-27 04:45:30,119 INFO L226 Difference]: Without dead ends: 17829 [2019-12-27 04:45:30,119 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:45:30,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17829 states. [2019-12-27 04:45:31,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17829 to 12933. [2019-12-27 04:45:31,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12933 states. [2019-12-27 04:45:31,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12933 states to 12933 states and 58367 transitions. [2019-12-27 04:45:31,497 INFO L78 Accepts]: Start accepts. Automaton has 12933 states and 58367 transitions. Word has length 8 [2019-12-27 04:45:31,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:45:31,497 INFO L462 AbstractCegarLoop]: Abstraction has 12933 states and 58367 transitions. [2019-12-27 04:45:31,497 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 04:45:31,498 INFO L276 IsEmpty]: Start isEmpty. Operand 12933 states and 58367 transitions. [2019-12-27 04:45:31,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:45:31,502 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:45:31,502 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:45:31,503 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 04:45:31,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:45:31,503 INFO L82 PathProgramCache]: Analyzing trace with hash 571636238, now seen corresponding path program 1 times [2019-12-27 04:45:31,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:45:31,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933343502] [2019-12-27 04:45:31,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:45:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:45:31,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 04:45:31,621 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933343502] [2019-12-27 04:45:31,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:45:31,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:45:31,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459691516] [2019-12-27 04:45:31,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 04:45:31,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:45:31,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 04:45:31,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:45:31,624 INFO L87 Difference]: Start difference. First operand 12933 states and 58367 transitions. Second operand 5 states. [2019-12-27 04:45:32,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:45:32,028 INFO L93 Difference]: Finished difference Result 21213 states and 92351 transitions. [2019-12-27 04:45:32,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:45:32,028 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 04:45:32,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:45:32,142 INFO L225 Difference]: With dead ends: 21213 [2019-12-27 04:45:32,143 INFO L226 Difference]: Without dead ends: 21213 [2019-12-27 04:45:32,143 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:45:32,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21213 states. [2019-12-27 04:45:32,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21213 to 15330. [2019-12-27 04:45:32,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15330 states. [2019-12-27 04:45:32,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15330 states to 15330 states and 68806 transitions. [2019-12-27 04:45:32,879 INFO L78 Accepts]: Start accepts. Automaton has 15330 states and 68806 transitions. Word has length 11 [2019-12-27 04:45:32,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:45:32,880 INFO L462 AbstractCegarLoop]: Abstraction has 15330 states and 68806 transitions. [2019-12-27 04:45:32,880 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 04:45:32,880 INFO L276 IsEmpty]: Start isEmpty. Operand 15330 states and 68806 transitions. [2019-12-27 04:45:32,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 04:45:32,881 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:45:32,881 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:45:32,881 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 04:45:32,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:45:32,882 INFO L82 PathProgramCache]: Analyzing trace with hash -83314279, now seen corresponding path program 1 times [2019-12-27 04:45:32,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:45:32,882 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827703289] [2019-12-27 04:45:32,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:45:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:45:32,948 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-12-27 04:45:32,949 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827703289] [2019-12-27 04:45:32,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:45:32,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:45:32,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70731170] [2019-12-27 04:45:32,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 04:45:32,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:45:32,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 04:45:32,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:45:32,954 INFO L87 Difference]: Start difference. First operand 15330 states and 68806 transitions. Second operand 5 states. [2019-12-27 04:45:33,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:45:33,224 INFO L93 Difference]: Finished difference Result 24943 states and 108222 transitions. [2019-12-27 04:45:33,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:45:33,224 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 04:45:33,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:45:33,347 INFO L225 Difference]: With dead ends: 24943 [2019-12-27 04:45:33,347 INFO L226 Difference]: Without dead ends: 24943 [2019-12-27 04:45:33,348 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:45:34,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24943 states. [2019-12-27 04:45:34,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24943 to 17989. [2019-12-27 04:45:34,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17989 states. [2019-12-27 04:45:35,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17989 states to 17989 states and 80300 transitions. [2019-12-27 04:45:35,044 INFO L78 Accepts]: Start accepts. Automaton has 17989 states and 80300 transitions. Word has length 14 [2019-12-27 04:45:35,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:45:35,045 INFO L462 AbstractCegarLoop]: Abstraction has 17989 states and 80300 transitions. [2019-12-27 04:45:35,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 04:45:35,045 INFO L276 IsEmpty]: Start isEmpty. Operand 17989 states and 80300 transitions. [2019-12-27 04:45:35,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 04:45:35,047 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:45:35,047 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:45:35,047 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 04:45:35,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:45:35,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1250988120, now seen corresponding path program 1 times [2019-12-27 04:45:35,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:45:35,048 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323200548] [2019-12-27 04:45:35,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:45:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:45:35,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-27 04:45:35,140 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323200548] [2019-12-27 04:45:35,140 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901127992] [2019-12-27 04:45:35,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 04:45:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:45:35,200 INFO L264 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-27 04:45:35,203 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 04:45:35,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:45:35,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 04:45:35,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 7 [2019-12-27 04:45:35,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693978728] [2019-12-27 04:45:35,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-27 04:45:35,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:45:35,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-27 04:45:35,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-12-27 04:45:35,249 INFO L87 Difference]: Start difference. First operand 17989 states and 80300 transitions. Second operand 9 states. [2019-12-27 04:45:35,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:45:35,974 INFO L93 Difference]: Finished difference Result 28215 states and 118118 transitions. [2019-12-27 04:45:35,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-27 04:45:35,975 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2019-12-27 04:45:35,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:45:36,062 INFO L225 Difference]: With dead ends: 28215 [2019-12-27 04:45:36,062 INFO L226 Difference]: Without dead ends: 28215 [2019-12-27 04:45:36,063 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-12-27 04:45:36,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28215 states. [2019-12-27 04:45:37,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28215 to 19957. [2019-12-27 04:45:37,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19957 states. [2019-12-27 04:45:37,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19957 states to 19957 states and 86505 transitions. [2019-12-27 04:45:37,684 INFO L78 Accepts]: Start accepts. Automaton has 19957 states and 86505 transitions. Word has length 15 [2019-12-27 04:45:37,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:45:37,684 INFO L462 AbstractCegarLoop]: Abstraction has 19957 states and 86505 transitions. [2019-12-27 04:45:37,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-27 04:45:37,684 INFO L276 IsEmpty]: Start isEmpty. Operand 19957 states and 86505 transitions. [2019-12-27 04:45:37,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 04:45:37,685 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:45:37,685 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:45:37,886 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 04:45:37,886 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 04:45:37,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:45:37,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1126296492, now seen corresponding path program 1 times [2019-12-27 04:45:37,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:45:37,888 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752311485] [2019-12-27 04:45:37,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:45:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:45:37,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 04:45:37,922 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752311485] [2019-12-27 04:45:37,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:45:37,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:45:37,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827110631] [2019-12-27 04:45:37,923 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:45:37,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:45:37,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:45:37,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:45:37,923 INFO L87 Difference]: Start difference. First operand 19957 states and 86505 transitions. Second operand 3 states. [2019-12-27 04:45:38,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:45:38,131 INFO L93 Difference]: Finished difference Result 30190 states and 116201 transitions. [2019-12-27 04:45:38,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:45:38,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-12-27 04:45:38,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:45:38,228 INFO L225 Difference]: With dead ends: 30190 [2019-12-27 04:45:38,228 INFO L226 Difference]: Without dead ends: 30190 [2019-12-27 04:45:38,228 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:45:38,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30190 states. [2019-12-27 04:45:39,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30190 to 26337. [2019-12-27 04:45:39,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26337 states. [2019-12-27 04:45:39,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26337 states to 26337 states and 105394 transitions. [2019-12-27 04:45:39,138 INFO L78 Accepts]: Start accepts. Automaton has 26337 states and 105394 transitions. Word has length 15 [2019-12-27 04:45:39,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:45:39,138 INFO L462 AbstractCegarLoop]: Abstraction has 26337 states and 105394 transitions. [2019-12-27 04:45:39,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:45:39,138 INFO L276 IsEmpty]: Start isEmpty. Operand 26337 states and 105394 transitions. [2019-12-27 04:45:39,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 04:45:39,140 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:45:39,140 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2019-12-27 04:45:39,140 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 04:45:39,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:45:39,141 INFO L82 PathProgramCache]: Analyzing trace with hash -641242489, now seen corresponding path program 1 times [2019-12-27 04:45:39,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:45:39,141 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288807742] [2019-12-27 04:45:39,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:45:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:45:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:45:39,164 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 04:45:39,164 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 04:45:39,164 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 04:45:39,164 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-27 04:45:39,172 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,172 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,173 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,173 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,173 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,173 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,173 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,173 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,174 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,174 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,174 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,174 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,174 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,175 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,175 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,175 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,175 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,175 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,176 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,176 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,176 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,176 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,176 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,176 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,177 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,177 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,177 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,177 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,177 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,177 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,178 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,178 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,178 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,178 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,179 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,179 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,179 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,179 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,179 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,180 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,180 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,180 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,180 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,180 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,180 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,180 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,181 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,181 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,181 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,181 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,181 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,181 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,182 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,182 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,183 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,183 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,183 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,183 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,183 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,183 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,183 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,184 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,184 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,184 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,184 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,184 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,185 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,185 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,185 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,185 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,187 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,187 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,187 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,187 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,187 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,189 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,189 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,189 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,191 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,191 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,192 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,192 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,192 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,193 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,193 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,194 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,194 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,194 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,194 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,195 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:45:39,196 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 04:45:39,196 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:45:39,196 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:45:39,197 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:45:39,197 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:45:39,197 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:45:39,197 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:45:39,197 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:45:39,197 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:45:39,198 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 88 transitions [2019-12-27 04:45:39,198 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions [2019-12-27 04:45:39,221 INFO L132 PetriNetUnfolder]: 16/132 cut-off events. [2019-12-27 04:45:39,221 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 04:45:39,225 INFO L76 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 132 events. 16/132 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 364 event pairs. 0/105 useless extension candidates. Maximal degree in co-relation 125. Up to 12 conditions per place. [2019-12-27 04:45:39,232 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions [2019-12-27 04:45:39,248 INFO L132 PetriNetUnfolder]: 16/132 cut-off events. [2019-12-27 04:45:39,249 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 04:45:39,252 INFO L76 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 132 events. 16/132 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 364 event pairs. 0/105 useless extension candidates. Maximal degree in co-relation 125. Up to 12 conditions per place. [2019-12-27 04:45:39,260 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4940 [2019-12-27 04:45:39,260 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 04:45:39,950 INFO L206 etLargeBlockEncoding]: Checked pairs total: 15440 [2019-12-27 04:45:39,951 INFO L214 etLargeBlockEncoding]: Total number of compositions: 49 [2019-12-27 04:45:39,951 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 48 transitions [2019-12-27 04:46:18,550 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 122560 states. [2019-12-27 04:46:18,550 INFO L276 IsEmpty]: Start isEmpty. Operand 122560 states. [2019-12-27 04:46:18,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 04:46:18,551 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:46:18,551 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:46:18,551 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:46:18,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:46:18,551 INFO L82 PathProgramCache]: Analyzing trace with hash -333029887, now seen corresponding path program 1 times [2019-12-27 04:46:18,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:46:18,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806893613] [2019-12-27 04:46:18,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:46:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:46:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:46:18,624 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806893613] [2019-12-27 04:46:18,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:46:18,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:46:18,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202621212] [2019-12-27 04:46:18,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 04:46:18,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:46:18,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 04:46:18,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:46:18,625 INFO L87 Difference]: Start difference. First operand 122560 states. Second operand 5 states. [2019-12-27 04:46:20,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:46:20,279 INFO L93 Difference]: Finished difference Result 171945 states and 934587 transitions. [2019-12-27 04:46:20,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:46:20,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-12-27 04:46:20,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:46:20,956 INFO L225 Difference]: With dead ends: 171945 [2019-12-27 04:46:20,957 INFO L226 Difference]: Without dead ends: 171945 [2019-12-27 04:46:20,957 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:46:28,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171945 states. [2019-12-27 04:46:31,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171945 to 121401. [2019-12-27 04:46:31,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121401 states. [2019-12-27 04:46:31,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121401 states to 121401 states and 677935 transitions. [2019-12-27 04:46:31,665 INFO L78 Accepts]: Start accepts. Automaton has 121401 states and 677935 transitions. Word has length 8 [2019-12-27 04:46:31,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:46:31,665 INFO L462 AbstractCegarLoop]: Abstraction has 121401 states and 677935 transitions. [2019-12-27 04:46:31,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 04:46:31,665 INFO L276 IsEmpty]: Start isEmpty. Operand 121401 states and 677935 transitions. [2019-12-27 04:46:31,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:46:31,666 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:46:31,666 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:46:31,666 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:46:31,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:46:31,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1158540469, now seen corresponding path program 1 times [2019-12-27 04:46:31,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:46:31,666 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419127306] [2019-12-27 04:46:31,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:46:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:46:31,741 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 04:46:31,741 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419127306] [2019-12-27 04:46:31,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:46:31,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:46:31,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575425610] [2019-12-27 04:46:31,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 04:46:31,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:46:31,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 04:46:31,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:46:31,743 INFO L87 Difference]: Start difference. First operand 121401 states and 677935 transitions. Second operand 5 states. [2019-12-27 04:46:39,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:46:39,434 INFO L93 Difference]: Finished difference Result 225123 states and 1226858 transitions. [2019-12-27 04:46:39,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:46:39,434 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 04:46:39,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:46:40,379 INFO L225 Difference]: With dead ends: 225123 [2019-12-27 04:46:40,379 INFO L226 Difference]: Without dead ends: 225123 [2019-12-27 04:46:40,379 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:46:50,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225123 states. [2019-12-27 04:46:54,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225123 to 145541. [2019-12-27 04:46:54,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145541 states. [2019-12-27 04:46:55,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145541 states to 145541 states and 810530 transitions. [2019-12-27 04:46:55,102 INFO L78 Accepts]: Start accepts. Automaton has 145541 states and 810530 transitions. Word has length 11 [2019-12-27 04:46:55,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:46:55,102 INFO L462 AbstractCegarLoop]: Abstraction has 145541 states and 810530 transitions. [2019-12-27 04:46:55,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 04:46:55,102 INFO L276 IsEmpty]: Start isEmpty. Operand 145541 states and 810530 transitions. [2019-12-27 04:46:55,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 04:46:55,104 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:46:55,104 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:46:55,104 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:46:55,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:46:55,104 INFO L82 PathProgramCache]: Analyzing trace with hash -710793500, now seen corresponding path program 1 times [2019-12-27 04:46:55,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:46:55,104 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410450456] [2019-12-27 04:46:55,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:46:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:46:56,548 WARN L192 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2019-12-27 04:46:56,549 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-12-27 04:46:56,550 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410450456] [2019-12-27 04:46:56,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:46:56,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:46:56,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187792216] [2019-12-27 04:46:56,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 04:46:56,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:46:56,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 04:46:56,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:46:56,551 INFO L87 Difference]: Start difference. First operand 145541 states and 810530 transitions. Second operand 5 states. [2019-12-27 04:47:06,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:47:06,749 INFO L93 Difference]: Finished difference Result 251766 states and 1364647 transitions. [2019-12-27 04:47:06,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:47:06,749 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 04:47:06,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:47:07,725 INFO L225 Difference]: With dead ends: 251766 [2019-12-27 04:47:07,725 INFO L226 Difference]: Without dead ends: 251766 [2019-12-27 04:47:07,726 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:47:10,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251766 states. [2019-12-27 04:47:15,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251766 to 177964. [2019-12-27 04:47:15,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177964 states. [2019-12-27 04:47:16,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177964 states to 177964 states and 988924 transitions. [2019-12-27 04:47:16,814 INFO L78 Accepts]: Start accepts. Automaton has 177964 states and 988924 transitions. Word has length 14 [2019-12-27 04:47:16,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:47:16,815 INFO L462 AbstractCegarLoop]: Abstraction has 177964 states and 988924 transitions. [2019-12-27 04:47:16,815 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 04:47:16,815 INFO L276 IsEmpty]: Start isEmpty. Operand 177964 states and 988924 transitions. [2019-12-27 04:47:16,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 04:47:16,816 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:47:16,816 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:47:16,816 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:47:16,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:47:16,817 INFO L82 PathProgramCache]: Analyzing trace with hash 688642200, now seen corresponding path program 1 times [2019-12-27 04:47:16,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:47:16,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622891222] [2019-12-27 04:47:16,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:47:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:47:16,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 04:47:16,854 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622891222] [2019-12-27 04:47:16,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:47:16,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:47:16,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912083046] [2019-12-27 04:47:16,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:47:16,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:47:16,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:47:16,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:47:16,855 INFO L87 Difference]: Start difference. First operand 177964 states and 988924 transitions. Second operand 3 states. [2019-12-27 04:47:26,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:47:26,423 INFO L93 Difference]: Finished difference Result 306905 states and 1492754 transitions. [2019-12-27 04:47:26,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:47:26,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-12-27 04:47:26,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:47:27,521 INFO L225 Difference]: With dead ends: 306905 [2019-12-27 04:47:27,521 INFO L226 Difference]: Without dead ends: 306905 [2019-12-27 04:47:27,521 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:47:38,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306905 states. [2019-12-27 04:47:44,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306905 to 280357. [2019-12-27 04:47:44,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280357 states. [2019-12-27 04:47:56,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280357 states to 280357 states and 1400731 transitions. [2019-12-27 04:47:56,724 INFO L78 Accepts]: Start accepts. Automaton has 280357 states and 1400731 transitions. Word has length 15 [2019-12-27 04:47:56,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:47:56,725 INFO L462 AbstractCegarLoop]: Abstraction has 280357 states and 1400731 transitions. [2019-12-27 04:47:56,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:47:56,725 INFO L276 IsEmpty]: Start isEmpty. Operand 280357 states and 1400731 transitions. [2019-12-27 04:47:56,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 04:47:56,727 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:47:56,727 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:47:56,727 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:47:56,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:47:56,728 INFO L82 PathProgramCache]: Analyzing trace with hash 930844234, now seen corresponding path program 2 times [2019-12-27 04:47:56,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:47:56,728 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021854239] [2019-12-27 04:47:56,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:47:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:47:56,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 04:47:56,858 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021854239] [2019-12-27 04:47:56,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:47:56,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 04:47:56,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851610519] [2019-12-27 04:47:56,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 04:47:56,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:47:56,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 04:47:56,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 04:47:56,859 INFO L87 Difference]: Start difference. First operand 280357 states and 1400731 transitions. Second operand 7 states. [2019-12-27 04:48:12,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:48:12,887 INFO L93 Difference]: Finished difference Result 607214 states and 2878263 transitions. [2019-12-27 04:48:12,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-27 04:48:12,887 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-12-27 04:48:12,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:48:25,056 INFO L225 Difference]: With dead ends: 607214 [2019-12-27 04:48:25,056 INFO L226 Difference]: Without dead ends: 607214 [2019-12-27 04:48:25,056 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2019-12-27 04:48:29,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607214 states. Received shutdown request... [2019-12-27 04:48:34,029 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 04:48:34,033 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 04:48:34,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 04:48:34 BasicIcfg [2019-12-27 04:48:34,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 04:48:34,035 INFO L168 Benchmark]: Toolchain (without parser) took 191433.77 ms. Allocated memory was 136.8 MB in the beginning and 5.4 GB in the end (delta: 5.3 GB). Free memory was 100.8 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 5.2 GB. Max. memory is 7.1 GB. [2019-12-27 04:48:34,036 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 04:48:34,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 631.91 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 100.4 MB in the beginning and 161.6 MB in the end (delta: -61.2 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-12-27 04:48:34,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.48 ms. Allocated memory is still 201.9 MB. Free memory was 161.6 MB in the beginning and 159.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 04:48:34,039 INFO L168 Benchmark]: Boogie Preprocessor took 24.15 ms. Allocated memory is still 201.9 MB. Free memory was 159.5 MB in the beginning and 158.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 04:48:34,039 INFO L168 Benchmark]: RCFGBuilder took 349.47 ms. Allocated memory is still 201.9 MB. Free memory was 158.2 MB in the beginning and 142.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-12-27 04:48:34,040 INFO L168 Benchmark]: TraceAbstraction took 190366.83 ms. Allocated memory was 201.9 MB in the beginning and 5.4 GB in the end (delta: 5.2 GB). Free memory was 141.3 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 5.2 GB. Max. memory is 7.1 GB. [2019-12-27 04:48:34,043 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 631.91 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 100.4 MB in the beginning and 161.6 MB in the end (delta: -61.2 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.48 ms. Allocated memory is still 201.9 MB. Free memory was 161.6 MB in the beginning and 159.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.15 ms. Allocated memory is still 201.9 MB. Free memory was 159.5 MB in the beginning and 158.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 349.47 ms. Allocated memory is still 201.9 MB. Free memory was 158.2 MB in the beginning and 142.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 190366.83 ms. Allocated memory was 201.9 MB in the beginning and 5.4 GB in the end (delta: 5.2 GB). Free memory was 141.3 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 5.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 32 ProgramPointsBefore, 9 ProgramPointsAfterwards, 32 TransitionsBefore, 8 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 123 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 191 CheckedPairsTotal, 30 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.4s, 46 ProgramPointsBefore, 22 ProgramPointsAfterwards, 46 TransitionsBefore, 22 TransitionsAfterwards, 884 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 453 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2180 CheckedPairsTotal, 26 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.5s, 60 ProgramPointsBefore, 30 ProgramPointsAfterwards, 60 TransitionsBefore, 30 TransitionsAfterwards, 1872 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 4 ChoiceCompositions, 867 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 5122 CheckedPairsTotal, 34 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 74 ProgramPointsBefore, 37 ProgramPointsAfterwards, 74 TransitionsBefore, 37 TransitionsAfterwards, 3224 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 5 ChoiceCompositions, 1437 VarBasedMoverChecksPositive, 55 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 9341 CheckedPairsTotal, 42 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 88 ProgramPointsBefore, 47 ProgramPointsAfterwards, 88 TransitionsBefore, 48 TransitionsAfterwards, 4940 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 5 ChoiceCompositions, 2112 VarBasedMoverChecksPositive, 60 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 15440 CheckedPairsTotal, 49 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 695]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 695). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Result: TIMEOUT, OverallTime: 174.8s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 61.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 416 SDtfs, 715 SDslu, 558 SDs, 0 SdLazy, 1130 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=280357occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 72.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 230476 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 2730 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 13/13 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown