/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 00:53:38,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 00:53:38,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 00:53:38,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 00:53:38,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 00:53:38,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 00:53:38,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 00:53:38,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 00:53:38,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 00:53:38,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 00:53:38,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 00:53:38,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 00:53:38,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 00:53:38,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 00:53:38,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 00:53:38,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 00:53:38,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 00:53:38,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 00:53:38,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 00:53:38,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 00:53:38,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 00:53:38,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 00:53:38,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 00:53:38,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 00:53:38,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 00:53:38,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 00:53:38,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 00:53:38,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 00:53:38,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 00:53:38,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 00:53:38,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 00:53:38,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 00:53:38,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 00:53:38,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 00:53:38,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 00:53:38,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 00:53:38,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-27 00:53:38,173 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 00:53:38,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 00:53:38,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 00:53:38,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 00:53:38,175 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 00:53:38,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 00:53:38,176 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 00:53:38,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 00:53:38,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 00:53:38,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 00:53:38,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 00:53:38,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 00:53:38,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 00:53:38,178 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 00:53:38,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 00:53:38,179 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 00:53:38,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 00:53:38,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 00:53:38,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 00:53:38,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 00:53:38,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 00:53:38,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:53:38,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 00:53:38,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 00:53:38,181 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 00:53:38,181 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 00:53:38,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 00:53:38,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 00:53:38,182 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 00:53:38,446 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 00:53:38,464 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 00:53:38,468 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 00:53:38,469 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 00:53:38,470 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 00:53:38,471 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i [2019-12-27 00:53:38,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/effd719e1/25734997a3bb48d383fe7b3facf9f81d/FLAG45df9d84b [2019-12-27 00:53:39,041 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 00:53:39,041 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i [2019-12-27 00:53:39,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/effd719e1/25734997a3bb48d383fe7b3facf9f81d/FLAG45df9d84b [2019-12-27 00:53:39,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/effd719e1/25734997a3bb48d383fe7b3facf9f81d [2019-12-27 00:53:39,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 00:53:39,395 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 00:53:39,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 00:53:39,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 00:53:39,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 00:53:39,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:53:39" (1/1) ... [2019-12-27 00:53:39,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61fcd619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:53:39, skipping insertion in model container [2019-12-27 00:53:39,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:53:39" (1/1) ... [2019-12-27 00:53:39,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 00:53:39,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 00:53:39,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:53:39,956 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 00:53:39,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:53:40,075 INFO L208 MainTranslator]: Completed translation [2019-12-27 00:53:40,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:53:40 WrapperNode [2019-12-27 00:53:40,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 00:53:40,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 00:53:40,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 00:53:40,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 00:53:40,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:53:40" (1/1) ... [2019-12-27 00:53:40,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:53:40" (1/1) ... [2019-12-27 00:53:40,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 00:53:40,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 00:53:40,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 00:53:40,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 00:53:40,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:53:40" (1/1) ... [2019-12-27 00:53:40,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:53:40" (1/1) ... [2019-12-27 00:53:40,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:53:40" (1/1) ... [2019-12-27 00:53:40,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:53:40" (1/1) ... [2019-12-27 00:53:40,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:53:40" (1/1) ... [2019-12-27 00:53:40,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:53:40" (1/1) ... [2019-12-27 00:53:40,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:53:40" (1/1) ... [2019-12-27 00:53:40,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 00:53:40,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 00:53:40,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 00:53:40,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 00:53:40,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:53:40" (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 00:53:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-27 00:53:40,221 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-27 00:53:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 00:53:40,221 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 00:53:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 00:53:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 00:53:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 00:53:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 00:53:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 00:53:40,224 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 00:53:40,406 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-27 00:53:40,416 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-27 00:53:40,478 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-27 00:53:40,482 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-27 00:53:40,552 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 00:53:40,552 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-27 00:53:40,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:53:40 BoogieIcfgContainer [2019-12-27 00:53:40,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 00:53:40,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 00:53:40,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 00:53:40,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 00:53:40,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 12:53:39" (1/3) ... [2019-12-27 00:53:40,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a7425b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:53:40, skipping insertion in model container [2019-12-27 00:53:40,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:53:40" (2/3) ... [2019-12-27 00:53:40,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a7425b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:53:40, skipping insertion in model container [2019-12-27 00:53:40,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:53:40" (3/3) ... [2019-12-27 00:53:40,562 INFO L109 eAbstractionObserver]: Analyzing ICFG 31_simple_loop5_vs.i [2019-12-27 00:53:40,573 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 00:53:40,573 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 00:53:40,580 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 00:53:40,581 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 00:53:40,604 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,604 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,605 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,605 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,605 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,606 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,607 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,607 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,607 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,607 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,608 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,608 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,613 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,613 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,614 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,614 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,619 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,619 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,619 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,620 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:40,635 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 00:53:40,650 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:53:40,651 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:53:40,651 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:53:40,651 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:53:40,651 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:53:40,651 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:53:40,651 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:53:40,652 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:53:40,665 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 47 transitions [2019-12-27 00:53:40,667 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 47 places, 47 transitions [2019-12-27 00:53:40,711 INFO L132 PetriNetUnfolder]: 7/54 cut-off events. [2019-12-27 00:53:40,711 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:53:40,718 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 54 events. 7/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs. 0/44 useless extension candidates. Maximal degree in co-relation 44. Up to 4 conditions per place. [2019-12-27 00:53:40,721 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 47 places, 47 transitions [2019-12-27 00:53:40,740 INFO L132 PetriNetUnfolder]: 7/54 cut-off events. [2019-12-27 00:53:40,741 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:53:40,742 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 54 events. 7/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs. 0/44 useless extension candidates. Maximal degree in co-relation 44. Up to 4 conditions per place. [2019-12-27 00:53:40,747 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 684 [2019-12-27 00:53:40,750 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:53:41,446 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1213 [2019-12-27 00:53:41,446 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-27 00:53:41,451 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 21 transitions [2019-12-27 00:53:41,480 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 206 states. [2019-12-27 00:53:41,482 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2019-12-27 00:53:41,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 00:53:41,491 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:53:41,492 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 00:53:41,493 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:53:41,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:53:41,500 INFO L82 PathProgramCache]: Analyzing trace with hash 197558128, now seen corresponding path program 1 times [2019-12-27 00:53:41,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:53:41,513 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141609046] [2019-12-27 00:53:41,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:53:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:53:41,770 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 00:53:41,771 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141609046] [2019-12-27 00:53:41,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:53:41,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:53:41,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619190549] [2019-12-27 00:53:41,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:53:41,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:53:41,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:53:41,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:53:41,796 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 3 states. [2019-12-27 00:53:41,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:53:41,853 INFO L93 Difference]: Finished difference Result 142 states and 378 transitions. [2019-12-27 00:53:41,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:53:41,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-27 00:53:41,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:53:41,892 INFO L225 Difference]: With dead ends: 142 [2019-12-27 00:53:41,893 INFO L226 Difference]: Without dead ends: 142 [2019-12-27 00:53:41,895 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:53:41,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-12-27 00:53:41,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2019-12-27 00:53:41,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-12-27 00:53:41,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 378 transitions. [2019-12-27 00:53:41,983 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 378 transitions. Word has length 5 [2019-12-27 00:53:41,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:53:41,983 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 378 transitions. [2019-12-27 00:53:41,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:53:41,984 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 378 transitions. [2019-12-27 00:53:41,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 00:53:41,984 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:53:41,985 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-12-27 00:53:41,986 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:53:41,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:53:41,986 INFO L82 PathProgramCache]: Analyzing trace with hash 197335581, now seen corresponding path program 1 times [2019-12-27 00:53:41,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:53:41,987 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105757721] [2019-12-27 00:53:41,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:53:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:53:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:53:42,086 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:53:42,086 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:53:42,087 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:53:42,088 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 00:53:42,096 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,096 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,096 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,096 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,097 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,097 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,097 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,098 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,098 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,098 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,098 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,098 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,099 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,099 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,099 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,100 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,100 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,100 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,101 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,101 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,101 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,101 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,102 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,102 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,103 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,103 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,103 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,103 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,105 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,105 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,105 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,106 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,108 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,108 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,109 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,109 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,111 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,112 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,112 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,112 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:42,114 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 00:53:42,114 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:53:42,115 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:53:42,115 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:53:42,115 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:53:42,115 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:53:42,115 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:53:42,115 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:53:42,115 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:53:42,118 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 70 transitions [2019-12-27 00:53:42,118 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 70 transitions [2019-12-27 00:53:42,137 INFO L132 PetriNetUnfolder]: 10/74 cut-off events. [2019-12-27 00:53:42,138 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 00:53:42,140 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 74 events. 10/74 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 165 event pairs. 0/60 useless extension candidates. Maximal degree in co-relation 83. Up to 6 conditions per place. [2019-12-27 00:53:42,145 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 70 transitions [2019-12-27 00:53:42,161 INFO L132 PetriNetUnfolder]: 10/74 cut-off events. [2019-12-27 00:53:42,161 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 00:53:42,163 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 74 events. 10/74 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 165 event pairs. 0/60 useless extension candidates. Maximal degree in co-relation 83. Up to 6 conditions per place. [2019-12-27 00:53:42,167 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1346 [2019-12-27 00:53:42,167 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:53:42,847 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3193 [2019-12-27 00:53:42,847 INFO L214 etLargeBlockEncoding]: Total number of compositions: 39 [2019-12-27 00:53:42,847 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 36 transitions [2019-12-27 00:53:42,928 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1664 states. [2019-12-27 00:53:42,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states. [2019-12-27 00:53:42,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 00:53:42,929 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:53:42,929 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 00:53:42,929 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:53:42,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:53:42,930 INFO L82 PathProgramCache]: Analyzing trace with hash 328747791, now seen corresponding path program 1 times [2019-12-27 00:53:42,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:53:42,930 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013667742] [2019-12-27 00:53:42,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:53:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:53:42,969 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 00:53:42,970 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013667742] [2019-12-27 00:53:42,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:53:42,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:53:42,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104019978] [2019-12-27 00:53:42,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:53:42,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:53:42,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:53:42,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:53:42,972 INFO L87 Difference]: Start difference. First operand 1664 states. Second operand 3 states. [2019-12-27 00:53:43,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:53:43,027 INFO L93 Difference]: Finished difference Result 1093 states and 3980 transitions. [2019-12-27 00:53:43,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:53:43,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-27 00:53:43,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:53:43,041 INFO L225 Difference]: With dead ends: 1093 [2019-12-27 00:53:43,041 INFO L226 Difference]: Without dead ends: 1093 [2019-12-27 00:53:43,042 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:53:43,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2019-12-27 00:53:43,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1093. [2019-12-27 00:53:43,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1093 states. [2019-12-27 00:53:43,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 3980 transitions. [2019-12-27 00:53:43,119 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 3980 transitions. Word has length 5 [2019-12-27 00:53:43,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:53:43,119 INFO L462 AbstractCegarLoop]: Abstraction has 1093 states and 3980 transitions. [2019-12-27 00:53:43,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:53:43,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 3980 transitions. [2019-12-27 00:53:43,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:53:43,122 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:53:43,122 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2019-12-27 00:53:43,122 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:53:43,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:53:43,123 INFO L82 PathProgramCache]: Analyzing trace with hash -102318405, now seen corresponding path program 1 times [2019-12-27 00:53:43,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:53:43,123 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406633621] [2019-12-27 00:53:43,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:53:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:53:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:53:43,189 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:53:43,190 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:53:43,192 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:53:43,193 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 00:53:43,203 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,203 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,203 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,204 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,204 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,204 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,204 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,204 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,205 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,205 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,205 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,205 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,205 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,206 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,206 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,206 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,206 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,206 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,207 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,207 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,207 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,207 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,208 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,208 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,208 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,208 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,208 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,209 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,209 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,209 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,209 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,210 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,210 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,210 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,210 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,210 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,211 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,211 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,211 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,211 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,213 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,213 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,213 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,213 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,221 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,221 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,222 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,222 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,224 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,224 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,224 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,224 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,226 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,226 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,226 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,226 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,227 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,227 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,228 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,228 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:43,229 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 00:53:43,229 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:53:43,229 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:53:43,229 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:53:43,229 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:53:43,229 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:53:43,229 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:53:43,229 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:53:43,229 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:53:43,231 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 93 transitions [2019-12-27 00:53:43,231 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions [2019-12-27 00:53:43,248 INFO L132 PetriNetUnfolder]: 13/94 cut-off events. [2019-12-27 00:53:43,248 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 00:53:43,250 INFO L76 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 94 events. 13/94 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs. 0/76 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2019-12-27 00:53:43,254 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions [2019-12-27 00:53:43,269 INFO L132 PetriNetUnfolder]: 13/94 cut-off events. [2019-12-27 00:53:43,269 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 00:53:43,271 INFO L76 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 94 events. 13/94 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs. 0/76 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2019-12-27 00:53:43,275 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2228 [2019-12-27 00:53:43,276 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:53:43,967 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5410 [2019-12-27 00:53:43,967 INFO L214 etLargeBlockEncoding]: Total number of compositions: 50 [2019-12-27 00:53:43,967 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 48 transitions [2019-12-27 00:53:44,817 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 11660 states. [2019-12-27 00:53:44,818 INFO L276 IsEmpty]: Start isEmpty. Operand 11660 states. [2019-12-27 00:53:44,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 00:53:44,818 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:53:44,818 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 00:53:44,818 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:53:44,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:53:44,819 INFO L82 PathProgramCache]: Analyzing trace with hash 496211931, now seen corresponding path program 1 times [2019-12-27 00:53:44,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:53:44,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026447350] [2019-12-27 00:53:44,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:53:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:53:44,885 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 00:53:44,885 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026447350] [2019-12-27 00:53:44,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:53:44,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:53:44,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145481561] [2019-12-27 00:53:44,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:53:44,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:53:44,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:53:44,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:53:44,888 INFO L87 Difference]: Start difference. First operand 11660 states. Second operand 3 states. [2019-12-27 00:53:45,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:53:45,027 INFO L93 Difference]: Finished difference Result 6178 states and 28552 transitions. [2019-12-27 00:53:45,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:53:45,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-27 00:53:45,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:53:45,106 INFO L225 Difference]: With dead ends: 6178 [2019-12-27 00:53:45,107 INFO L226 Difference]: Without dead ends: 6178 [2019-12-27 00:53:45,107 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:53:45,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6178 states. [2019-12-27 00:53:45,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6178 to 6178. [2019-12-27 00:53:45,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6178 states. [2019-12-27 00:53:45,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6178 states to 6178 states and 28552 transitions. [2019-12-27 00:53:45,549 INFO L78 Accepts]: Start accepts. Automaton has 6178 states and 28552 transitions. Word has length 5 [2019-12-27 00:53:45,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:53:45,550 INFO L462 AbstractCegarLoop]: Abstraction has 6178 states and 28552 transitions. [2019-12-27 00:53:45,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:53:45,550 INFO L276 IsEmpty]: Start isEmpty. Operand 6178 states and 28552 transitions. [2019-12-27 00:53:45,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 00:53:45,552 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:53:45,552 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:53:45,552 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:53:45,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:53:45,553 INFO L82 PathProgramCache]: Analyzing trace with hash -988299756, now seen corresponding path program 1 times [2019-12-27 00:53:45,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:53:45,553 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772738449] [2019-12-27 00:53:45,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:53:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:53:45,598 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 00:53:45,598 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772738449] [2019-12-27 00:53:45,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:53:45,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:53:45,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731305784] [2019-12-27 00:53:45,599 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:53:45,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:53:45,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:53:45,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:53:45,600 INFO L87 Difference]: Start difference. First operand 6178 states and 28552 transitions. Second operand 3 states. [2019-12-27 00:53:45,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:53:45,641 INFO L93 Difference]: Finished difference Result 1170 states and 3867 transitions. [2019-12-27 00:53:45,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:53:45,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-27 00:53:45,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:53:45,651 INFO L225 Difference]: With dead ends: 1170 [2019-12-27 00:53:45,651 INFO L226 Difference]: Without dead ends: 1170 [2019-12-27 00:53:45,652 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 00:53:45,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2019-12-27 00:53:45,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 918. [2019-12-27 00:53:45,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2019-12-27 00:53:45,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 3069 transitions. [2019-12-27 00:53:45,685 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 3069 transitions. Word has length 12 [2019-12-27 00:53:45,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:53:45,685 INFO L462 AbstractCegarLoop]: Abstraction has 918 states and 3069 transitions. [2019-12-27 00:53:45,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:53:45,685 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 3069 transitions. [2019-12-27 00:53:45,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 00:53:45,687 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:53:45,687 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:53:45,688 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:53:45,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:53:45,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1893678895, now seen corresponding path program 1 times [2019-12-27 00:53:45,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:53:45,688 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238771185] [2019-12-27 00:53:45,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:53:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:53:45,738 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 00:53:45,738 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238771185] [2019-12-27 00:53:45,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:53:45,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:53:45,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447640288] [2019-12-27 00:53:45,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:53:45,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:53:45,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:53:45,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:53:45,740 INFO L87 Difference]: Start difference. First operand 918 states and 3069 transitions. Second operand 5 states. [2019-12-27 00:53:45,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:53:45,877 INFO L93 Difference]: Finished difference Result 1834 states and 6049 transitions. [2019-12-27 00:53:45,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:53:45,878 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 00:53:45,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:53:45,895 INFO L225 Difference]: With dead ends: 1834 [2019-12-27 00:53:45,896 INFO L226 Difference]: Without dead ends: 1834 [2019-12-27 00:53:45,896 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-27 00:53:45,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2019-12-27 00:53:45,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1582. [2019-12-27 00:53:45,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1582 states. [2019-12-27 00:53:45,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 5251 transitions. [2019-12-27 00:53:45,963 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 5251 transitions. Word has length 14 [2019-12-27 00:53:45,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:53:45,964 INFO L462 AbstractCegarLoop]: Abstraction has 1582 states and 5251 transitions. [2019-12-27 00:53:45,964 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:53:45,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 5251 transitions. [2019-12-27 00:53:45,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 00:53:45,966 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:53:45,966 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:53:45,966 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:53:45,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:53:45,967 INFO L82 PathProgramCache]: Analyzing trace with hash 437303836, now seen corresponding path program 1 times [2019-12-27 00:53:45,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:53:45,967 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039470681] [2019-12-27 00:53:45,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:53:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:53:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:53:45,989 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:53:45,990 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:53:45,990 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:53:45,990 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 00:53:46,001 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,002 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,002 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,002 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,002 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,002 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,003 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,003 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,003 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,003 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,003 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,003 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,004 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,004 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,004 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,004 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,004 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,004 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,005 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,005 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,005 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,005 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,005 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,006 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,006 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,006 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,006 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,006 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,007 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,007 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,007 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,007 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,007 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,007 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,008 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,008 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,008 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,008 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,008 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,008 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,009 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,009 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,009 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,009 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,009 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,009 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,010 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,010 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,010 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,010 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,011 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,011 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,013 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,013 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,013 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,014 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,015 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,015 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,015 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,015 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,017 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,017 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,017 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,017 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,018 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,018 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,019 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,019 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,021 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,022 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,022 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,022 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,023 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,023 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,023 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,023 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,024 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,024 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,024 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,025 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:53:46,026 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 00:53:46,026 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:53:46,026 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:53:46,026 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:53:46,026 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:53:46,026 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:53:46,026 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:53:46,027 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:53:46,027 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:53:46,028 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 116 transitions [2019-12-27 00:53:46,028 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 113 places, 116 transitions [2019-12-27 00:53:46,105 INFO L132 PetriNetUnfolder]: 16/114 cut-off events. [2019-12-27 00:53:46,105 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 00:53:46,108 INFO L76 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 114 events. 16/114 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 277 event pairs. 0/92 useless extension candidates. Maximal degree in co-relation 134. Up to 10 conditions per place. [2019-12-27 00:53:46,114 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 113 places, 116 transitions [2019-12-27 00:53:46,129 INFO L132 PetriNetUnfolder]: 16/114 cut-off events. [2019-12-27 00:53:46,130 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 00:53:46,132 INFO L76 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 114 events. 16/114 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 277 event pairs. 0/92 useless extension candidates. Maximal degree in co-relation 134. Up to 10 conditions per place. [2019-12-27 00:53:46,138 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3330 [2019-12-27 00:53:46,138 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:53:46,941 INFO L206 etLargeBlockEncoding]: Checked pairs total: 8716 [2019-12-27 00:53:46,941 INFO L214 etLargeBlockEncoding]: Total number of compositions: 64 [2019-12-27 00:53:46,942 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 62 transitions [2019-12-27 00:54:04,681 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 81632 states. [2019-12-27 00:54:04,682 INFO L276 IsEmpty]: Start isEmpty. Operand 81632 states. [2019-12-27 00:54:04,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 00:54:04,682 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:54:04,682 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 00:54:04,682 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:54:04,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:54:04,683 INFO L82 PathProgramCache]: Analyzing trace with hash 700874106, now seen corresponding path program 1 times [2019-12-27 00:54:04,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:54:04,683 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489635768] [2019-12-27 00:54:04,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:54:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:54:04,713 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 00:54:04,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489635768] [2019-12-27 00:54:04,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:54:04,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:54:04,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064795266] [2019-12-27 00:54:04,714 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:54:04,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:54:04,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:54:04,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:54:04,715 INFO L87 Difference]: Start difference. First operand 81632 states. Second operand 3 states. [2019-12-27 00:54:05,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:54:05,082 INFO L93 Difference]: Finished difference Result 34843 states and 195705 transitions. [2019-12-27 00:54:05,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:54:05,083 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-27 00:54:05,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:54:07,313 INFO L225 Difference]: With dead ends: 34843 [2019-12-27 00:54:07,313 INFO L226 Difference]: Without dead ends: 34843 [2019-12-27 00:54:07,314 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:54:08,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34843 states. [2019-12-27 00:54:09,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34843 to 34843. [2019-12-27 00:54:09,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34843 states. [2019-12-27 00:54:09,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34843 states to 34843 states and 195705 transitions. [2019-12-27 00:54:09,295 INFO L78 Accepts]: Start accepts. Automaton has 34843 states and 195705 transitions. Word has length 5 [2019-12-27 00:54:09,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:54:09,295 INFO L462 AbstractCegarLoop]: Abstraction has 34843 states and 195705 transitions. [2019-12-27 00:54:09,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:54:09,295 INFO L276 IsEmpty]: Start isEmpty. Operand 34843 states and 195705 transitions. [2019-12-27 00:54:09,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 00:54:09,296 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:54:09,296 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:54:09,296 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:54:09,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:54:09,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1025197219, now seen corresponding path program 1 times [2019-12-27 00:54:09,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:54:09,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304130489] [2019-12-27 00:54:09,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:54:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:54:09,319 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 00:54:09,320 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304130489] [2019-12-27 00:54:09,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:54:09,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:54:09,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384087989] [2019-12-27 00:54:09,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:54:09,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:54:09,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:54:09,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:54:09,321 INFO L87 Difference]: Start difference. First operand 34843 states and 195705 transitions. Second operand 3 states. [2019-12-27 00:54:09,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:54:09,366 INFO L93 Difference]: Finished difference Result 3051 states and 11616 transitions. [2019-12-27 00:54:09,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:54:09,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-27 00:54:09,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:54:09,378 INFO L225 Difference]: With dead ends: 3051 [2019-12-27 00:54:09,378 INFO L226 Difference]: Without dead ends: 3051 [2019-12-27 00:54:09,378 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 00:54:09,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2019-12-27 00:54:09,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 2335. [2019-12-27 00:54:09,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2335 states. [2019-12-27 00:54:09,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 9018 transitions. [2019-12-27 00:54:09,450 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 9018 transitions. Word has length 12 [2019-12-27 00:54:09,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:54:09,451 INFO L462 AbstractCegarLoop]: Abstraction has 2335 states and 9018 transitions. [2019-12-27 00:54:09,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:54:09,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 9018 transitions. [2019-12-27 00:54:09,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 00:54:09,452 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:54:09,452 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:54:09,452 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:54:09,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:54:09,453 INFO L82 PathProgramCache]: Analyzing trace with hash -897581190, now seen corresponding path program 1 times [2019-12-27 00:54:09,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:54:09,454 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714056255] [2019-12-27 00:54:09,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:54:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:54:09,505 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 00:54:09,506 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714056255] [2019-12-27 00:54:09,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:54:09,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:54:09,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172436586] [2019-12-27 00:54:09,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:54:09,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:54:09,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:54:09,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:54:09,508 INFO L87 Difference]: Start difference. First operand 2335 states and 9018 transitions. Second operand 5 states. [2019-12-27 00:54:09,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:54:09,755 INFO L93 Difference]: Finished difference Result 4855 states and 18434 transitions. [2019-12-27 00:54:09,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:54:09,756 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 00:54:09,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:54:09,779 INFO L225 Difference]: With dead ends: 4855 [2019-12-27 00:54:09,779 INFO L226 Difference]: Without dead ends: 4855 [2019-12-27 00:54:09,780 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-27 00:54:09,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2019-12-27 00:54:09,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4139. [2019-12-27 00:54:09,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4139 states. [2019-12-27 00:54:09,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 15836 transitions. [2019-12-27 00:54:09,902 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 15836 transitions. Word has length 14 [2019-12-27 00:54:09,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:54:09,903 INFO L462 AbstractCegarLoop]: Abstraction has 4139 states and 15836 transitions. [2019-12-27 00:54:09,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:54:09,903 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 15836 transitions. [2019-12-27 00:54:09,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 00:54:09,906 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:54:09,906 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:54:09,906 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:54:09,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:54:09,906 INFO L82 PathProgramCache]: Analyzing trace with hash -76262713, now seen corresponding path program 1 times [2019-12-27 00:54:09,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:54:09,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686971595] [2019-12-27 00:54:09,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:54:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:54:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:54:09,952 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:54:09,952 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:54:09,952 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:54:09,953 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-27 00:54:09,965 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,965 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,965 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,965 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,965 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,966 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,966 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,966 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,966 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,966 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,967 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,967 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,967 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,967 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,967 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,967 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,968 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,968 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,968 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,968 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,968 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,968 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,969 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,969 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,969 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,969 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,969 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,969 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,970 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,970 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,976 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,976 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,976 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,976 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,977 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,977 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,977 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,977 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,977 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,978 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,978 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,978 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,979 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,979 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,979 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,979 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,980 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,981 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,982 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,983 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,983 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,983 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,983 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,983 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,984 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,984 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,984 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,984 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,985 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,985 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,985 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,985 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,985 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,986 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,987 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,987 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,987 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,987 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,989 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,989 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,989 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,989 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,990 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,990 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,990 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,991 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,992 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,993 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,993 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,993 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,994 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,995 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,995 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,995 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,996 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,996 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,996 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,997 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,998 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,998 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,998 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,998 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,999 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:09,999 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:10,000 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:10,000 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:10,001 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:10,001 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:10,001 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:10,001 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:54:10,003 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-27 00:54:10,003 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:54:10,003 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:54:10,003 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:54:10,003 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:54:10,004 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:54:10,004 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:54:10,004 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:54:10,004 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:54:10,005 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 139 transitions [2019-12-27 00:54:10,005 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 135 places, 139 transitions [2019-12-27 00:54:10,023 INFO L132 PetriNetUnfolder]: 19/134 cut-off events. [2019-12-27 00:54:10,024 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 00:54:10,027 INFO L76 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 134 events. 19/134 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 321 event pairs. 0/108 useless extension candidates. Maximal degree in co-relation 161. Up to 12 conditions per place. [2019-12-27 00:54:10,035 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 135 places, 139 transitions [2019-12-27 00:54:10,054 INFO L132 PetriNetUnfolder]: 19/134 cut-off events. [2019-12-27 00:54:10,055 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 00:54:10,058 INFO L76 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 134 events. 19/134 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 321 event pairs. 0/108 useless extension candidates. Maximal degree in co-relation 161. Up to 12 conditions per place. [2019-12-27 00:54:10,066 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4652 [2019-12-27 00:54:10,067 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:54:10,951 INFO L206 etLargeBlockEncoding]: Checked pairs total: 12277 [2019-12-27 00:54:10,951 INFO L214 etLargeBlockEncoding]: Total number of compositions: 76 [2019-12-27 00:54:10,952 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 74 transitions Received shutdown request... [2019-12-27 00:57:59,369 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 00:57:59,372 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 00:57:59,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 12:57:59 BasicIcfg [2019-12-27 00:57:59,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 00:57:59,375 INFO L168 Benchmark]: Toolchain (without parser) took 259979.76 ms. Allocated memory was 143.1 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 99.4 MB in the beginning and 1.0 GB in the end (delta: -934.9 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2019-12-27 00:57:59,376 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 143.1 MB. Free memory is still 119.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 00:57:59,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.73 ms. Allocated memory was 143.1 MB in the beginning and 201.9 MB in the end (delta: 58.7 MB). Free memory was 99.0 MB in the beginning and 161.4 MB in the end (delta: -62.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-12-27 00:57:59,377 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.03 ms. Allocated memory is still 201.9 MB. Free memory was 161.4 MB in the beginning and 159.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-12-27 00:57:59,378 INFO L168 Benchmark]: Boogie Preprocessor took 27.04 ms. Allocated memory is still 201.9 MB. Free memory was 159.2 MB in the beginning and 157.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 00:57:59,379 INFO L168 Benchmark]: RCFGBuilder took 397.06 ms. Allocated memory is still 201.9 MB. Free memory was 157.8 MB in the beginning and 139.1 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2019-12-27 00:57:59,380 INFO L168 Benchmark]: TraceAbstraction took 258817.55 ms. Allocated memory was 201.9 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 139.1 MB in the beginning and 1.0 GB in the end (delta: -895.2 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2019-12-27 00:57:59,384 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 143.1 MB. Free memory is still 119.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 679.73 ms. Allocated memory was 143.1 MB in the beginning and 201.9 MB in the end (delta: 58.7 MB). Free memory was 99.0 MB in the beginning and 161.4 MB in the end (delta: -62.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.03 ms. Allocated memory is still 201.9 MB. Free memory was 161.4 MB in the beginning and 159.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.04 ms. Allocated memory is still 201.9 MB. Free memory was 159.2 MB in the beginning and 157.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 397.06 ms. Allocated memory is still 201.9 MB. Free memory was 157.8 MB in the beginning and 139.1 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 258817.55 ms. Allocated memory was 201.9 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 139.1 MB in the beginning and 1.0 GB in the end (delta: -895.2 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 47 ProgramPointsBefore, 22 ProgramPointsAfterwards, 47 TransitionsBefore, 21 TransitionsAfterwards, 684 CoEnabledTransitionPairs, 6 FixpointIterations, 11 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 4 ChoiceCompositions, 286 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 1213 CheckedPairsTotal, 26 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 69 ProgramPointsBefore, 36 ProgramPointsAfterwards, 70 TransitionsBefore, 36 TransitionsAfterwards, 1346 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 9 ConcurrentYvCompositions, 6 ChoiceCompositions, 574 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 21 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 3193 CheckedPairsTotal, 39 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 91 ProgramPointsBefore, 49 ProgramPointsAfterwards, 93 TransitionsBefore, 48 TransitionsAfterwards, 2228 CoEnabledTransitionPairs, 5 FixpointIterations, 24 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 10 ConcurrentYvCompositions, 10 ChoiceCompositions, 772 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 5410 CheckedPairsTotal, 50 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 113 ProgramPointsBefore, 62 ProgramPointsAfterwards, 116 TransitionsBefore, 62 TransitionsAfterwards, 3330 CoEnabledTransitionPairs, 5 FixpointIterations, 29 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 13 ConcurrentYvCompositions, 12 ChoiceCompositions, 1209 VarBasedMoverChecksPositive, 53 VarBasedMoverChecksNegative, 37 SemBasedMoverChecksPositive, 43 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 8716 CheckedPairsTotal, 64 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 135 ProgramPointsBefore, 75 ProgramPointsAfterwards, 139 TransitionsBefore, 74 TransitionsAfterwards, 4652 CoEnabledTransitionPairs, 5 FixpointIterations, 38 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 14 ConcurrentYvCompositions, 16 ChoiceCompositions, 1414 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 43 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 12277 CheckedPairsTotal, 76 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 706]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 706). Cancelled while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 75 places, 74 transitions. Already constructed 373848 states. Currently 52375 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 41 locations, 1 error locations. Result: TIMEOUT, OverallTime: 229.3s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown