/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 15:02:11,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 15:02:11,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 15:02:11,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 15:02:11,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 15:02:11,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 15:02:11,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 15:02:11,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 15:02:11,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 15:02:11,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 15:02:11,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 15:02:11,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 15:02:11,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 15:02:11,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 15:02:11,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 15:02:11,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 15:02:11,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 15:02:11,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 15:02:11,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 15:02:11,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 15:02:11,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 15:02:11,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 15:02:11,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 15:02:11,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 15:02:11,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 15:02:11,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 15:02:11,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 15:02:11,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 15:02:11,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 15:02:11,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 15:02:11,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 15:02:11,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 15:02:11,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 15:02:11,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 15:02:11,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 15:02:11,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 15:02:11,183 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-NoLbe.epf [2019-12-27 15:02:11,198 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 15:02:11,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 15:02:11,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 15:02:11,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 15:02:11,200 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 15:02:11,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 15:02:11,200 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 15:02:11,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 15:02:11,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 15:02:11,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 15:02:11,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 15:02:11,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 15:02:11,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 15:02:11,202 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 15:02:11,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 15:02:11,202 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 15:02:11,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 15:02:11,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 15:02:11,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 15:02:11,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 15:02:11,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 15:02:11,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 15:02:11,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 15:02:11,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 15:02:11,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 15:02:11,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 15:02:11,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 15:02:11,205 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 15:02:11,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 15:02:11,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 15:02:11,470 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 15:02:11,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 15:02:11,491 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 15:02:11,492 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 15:02:11,493 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 15:02:11,494 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.i [2019-12-27 15:02:11,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2151ec594/bc979ec49d0541a0afeebc9475b1024d/FLAGa6e608325 [2019-12-27 15:02:12,106 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 15:02:12,106 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.i [2019-12-27 15:02:12,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2151ec594/bc979ec49d0541a0afeebc9475b1024d/FLAGa6e608325 [2019-12-27 15:02:12,397 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2151ec594/bc979ec49d0541a0afeebc9475b1024d [2019-12-27 15:02:12,406 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 15:02:12,407 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 15:02:12,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 15:02:12,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 15:02:12,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 15:02:12,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:02:12" (1/1) ... [2019-12-27 15:02:12,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610c54e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:02:12, skipping insertion in model container [2019-12-27 15:02:12,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:02:12" (1/1) ... [2019-12-27 15:02:12,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 15:02:12,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 15:02:12,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 15:02:12,942 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 15:02:13,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 15:02:13,091 INFO L208 MainTranslator]: Completed translation [2019-12-27 15:02:13,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:02:13 WrapperNode [2019-12-27 15:02:13,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 15:02:13,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 15:02:13,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 15:02:13,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 15:02:13,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:02:13" (1/1) ... [2019-12-27 15:02:13,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:02:13" (1/1) ... [2019-12-27 15:02:13,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 15:02:13,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 15:02:13,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 15:02:13,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 15:02:13,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:02:13" (1/1) ... [2019-12-27 15:02:13,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:02:13" (1/1) ... [2019-12-27 15:02:13,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:02:13" (1/1) ... [2019-12-27 15:02:13,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:02:13" (1/1) ... [2019-12-27 15:02:13,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:02:13" (1/1) ... [2019-12-27 15:02:13,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:02:13" (1/1) ... [2019-12-27 15:02:13,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:02:13" (1/1) ... [2019-12-27 15:02:13,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 15:02:13,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 15:02:13,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 15:02:13,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 15:02:13,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:02:13" (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 15:02:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-27 15:02:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-27 15:02:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 15:02:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 15:02:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 15:02:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 15:02:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 15:02:13,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 15:02:13,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 15:02:13,273 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 15:02:13,687 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 15:02:13,687 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-27 15:02:13,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:02:13 BoogieIcfgContainer [2019-12-27 15:02:13,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 15:02:13,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 15:02:13,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 15:02:13,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 15:02:13,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 03:02:12" (1/3) ... [2019-12-27 15:02:13,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646e2ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:02:13, skipping insertion in model container [2019-12-27 15:02:13,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:02:13" (2/3) ... [2019-12-27 15:02:13,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646e2ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:02:13, skipping insertion in model container [2019-12-27 15:02:13,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:02:13" (3/3) ... [2019-12-27 15:02:13,698 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-2.i [2019-12-27 15:02:13,709 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 15:02:13,709 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 15:02:13,717 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 15:02:13,718 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 15:02:13,746 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,747 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,747 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,747 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,748 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,748 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,749 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,749 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,750 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,750 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,750 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,750 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,751 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,751 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,751 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,752 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,752 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,756 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,757 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,757 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,757 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,758 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,764 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,764 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,765 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,765 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:13,781 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 15:02:13,799 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:02:13,799 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:02:13,799 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:02:13,799 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 15:02:13,799 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:02:13,799 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:02:13,800 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:02:13,800 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:02:13,812 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 53 transitions [2019-12-27 15:02:13,878 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1000 states. [2019-12-27 15:02:13,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states. [2019-12-27 15:02:13,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-27 15:02:13,891 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:02:13,892 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:02:13,893 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:02:13,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:02:13,900 INFO L82 PathProgramCache]: Analyzing trace with hash -545237580, now seen corresponding path program 1 times [2019-12-27 15:02:13,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:02:13,912 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545091828] [2019-12-27 15:02:13,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:02:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:02:14,300 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 15:02:14,301 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545091828] [2019-12-27 15:02:14,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:02:14,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 15:02:14,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373501390] [2019-12-27 15:02:14,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 15:02:14,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:02:14,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 15:02:14,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:02:14,327 INFO L87 Difference]: Start difference. First operand 1000 states. Second operand 6 states. [2019-12-27 15:02:14,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:02:14,639 INFO L93 Difference]: Finished difference Result 1006 states and 2468 transitions. [2019-12-27 15:02:14,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 15:02:14,642 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-27 15:02:14,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:02:14,665 INFO L225 Difference]: With dead ends: 1006 [2019-12-27 15:02:14,665 INFO L226 Difference]: Without dead ends: 678 [2019-12-27 15:02:14,667 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-27 15:02:14,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2019-12-27 15:02:14,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 646. [2019-12-27 15:02:14,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2019-12-27 15:02:14,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 1560 transitions. [2019-12-27 15:02:14,833 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 1560 transitions. Word has length 25 [2019-12-27 15:02:14,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:02:14,834 INFO L462 AbstractCegarLoop]: Abstraction has 646 states and 1560 transitions. [2019-12-27 15:02:14,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 15:02:14,834 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 1560 transitions. [2019-12-27 15:02:14,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-27 15:02:14,837 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:02:14,837 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:02:14,838 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:02:14,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:02:14,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1722225356, now seen corresponding path program 1 times [2019-12-27 15:02:14,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:02:14,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366621117] [2019-12-27 15:02:14,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:02:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:02:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:02:14,934 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:02:14,934 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:02:14,936 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:02:14,936 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 15:02:14,951 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,951 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,951 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,951 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,952 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,952 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,952 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,952 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,953 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,953 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,953 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,953 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,953 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,953 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,954 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,954 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,954 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,955 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,955 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,955 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,955 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,955 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,956 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,956 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,956 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,957 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,957 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,957 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,957 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,957 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,957 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,958 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,958 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,958 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,959 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,959 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,959 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,959 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,959 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,962 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,962 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,962 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,962 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,963 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,970 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,971 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,971 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,971 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,971 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,972 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,974 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,974 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,974 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,974 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,974 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,974 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:14,978 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 15:02:14,978 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:02:14,979 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:02:14,979 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:02:14,979 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 15:02:14,979 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:02:14,979 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:02:14,979 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:02:14,979 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:02:14,982 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 69 transitions [2019-12-27 15:02:15,271 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6130 states. [2019-12-27 15:02:15,271 INFO L276 IsEmpty]: Start isEmpty. Operand 6130 states. [2019-12-27 15:02:15,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-27 15:02:15,276 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:02:15,277 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:02:15,277 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:02:15,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:02:15,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1186811608, now seen corresponding path program 1 times [2019-12-27 15:02:15,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:02:15,278 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340250751] [2019-12-27 15:02:15,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:02:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:02:15,406 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 15:02:15,406 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340250751] [2019-12-27 15:02:15,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:02:15,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 15:02:15,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133850171] [2019-12-27 15:02:15,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 15:02:15,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:02:15,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 15:02:15,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:02:15,409 INFO L87 Difference]: Start difference. First operand 6130 states. Second operand 6 states. [2019-12-27 15:02:15,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:02:15,661 INFO L93 Difference]: Finished difference Result 7222 states and 23490 transitions. [2019-12-27 15:02:15,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 15:02:15,662 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-27 15:02:15,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:02:15,789 INFO L225 Difference]: With dead ends: 7222 [2019-12-27 15:02:15,789 INFO L226 Difference]: Without dead ends: 5134 [2019-12-27 15:02:15,792 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-27 15:02:15,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5134 states. [2019-12-27 15:02:15,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5134 to 4786. [2019-12-27 15:02:15,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4786 states. [2019-12-27 15:02:15,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4786 states to 4786 states and 15490 transitions. [2019-12-27 15:02:15,994 INFO L78 Accepts]: Start accepts. Automaton has 4786 states and 15490 transitions. Word has length 25 [2019-12-27 15:02:15,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:02:15,994 INFO L462 AbstractCegarLoop]: Abstraction has 4786 states and 15490 transitions. [2019-12-27 15:02:15,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 15:02:15,995 INFO L276 IsEmpty]: Start isEmpty. Operand 4786 states and 15490 transitions. [2019-12-27 15:02:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 15:02:15,999 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:02:15,999 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:02:16,000 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:02:16,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:02:16,000 INFO L82 PathProgramCache]: Analyzing trace with hash -433353734, now seen corresponding path program 1 times [2019-12-27 15:02:16,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:02:16,001 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363471815] [2019-12-27 15:02:16,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:02:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:02:16,171 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 15:02:16,171 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363471815] [2019-12-27 15:02:16,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:02:16,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 15:02:16,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024685016] [2019-12-27 15:02:16,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 15:02:16,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:02:16,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 15:02:16,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-27 15:02:16,174 INFO L87 Difference]: Start difference. First operand 4786 states and 15490 transitions. Second operand 8 states. [2019-12-27 15:02:16,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:02:16,791 INFO L93 Difference]: Finished difference Result 6726 states and 20872 transitions. [2019-12-27 15:02:16,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-27 15:02:16,792 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 15:02:16,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:02:16,845 INFO L225 Difference]: With dead ends: 6726 [2019-12-27 15:02:16,845 INFO L226 Difference]: Without dead ends: 6134 [2019-12-27 15:02:16,853 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-27 15:02:16,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2019-12-27 15:02:16,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 4028. [2019-12-27 15:02:16,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4028 states. [2019-12-27 15:02:17,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 13063 transitions. [2019-12-27 15:02:17,007 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 13063 transitions. Word has length 34 [2019-12-27 15:02:17,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:02:17,008 INFO L462 AbstractCegarLoop]: Abstraction has 4028 states and 13063 transitions. [2019-12-27 15:02:17,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 15:02:17,009 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 13063 transitions. [2019-12-27 15:02:17,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-27 15:02:17,018 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:02:17,019 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:02:17,019 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:02:17,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:02:17,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1363955682, now seen corresponding path program 1 times [2019-12-27 15:02:17,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:02:17,026 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546611117] [2019-12-27 15:02:17,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:02:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:02:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:02:17,110 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:02:17,111 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:02:17,111 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:02:17,111 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 15:02:17,126 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,133 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,134 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,134 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,134 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,134 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,135 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,136 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,137 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,137 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,137 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,137 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,137 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,138 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,138 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,138 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,138 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,138 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,139 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,139 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,140 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,140 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,140 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,140 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,140 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,141 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,141 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,141 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,141 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,141 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,142 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,143 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,143 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,143 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,143 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,143 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,144 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,144 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,144 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,144 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,144 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,145 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,145 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,145 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,145 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,145 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,145 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,146 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,146 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,146 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,146 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,147 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,147 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,147 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,147 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,147 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,149 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,150 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,150 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,150 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,150 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,152 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,152 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,153 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,153 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,153 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,155 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,155 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,155 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,156 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,156 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,156 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,158 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,159 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,159 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,159 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,159 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,159 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,161 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,162 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,162 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,162 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,162 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,162 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:17,166 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 15:02:17,166 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:02:17,166 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:02:17,166 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:02:17,167 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 15:02:17,167 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:02:17,167 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:02:17,167 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:02:17,167 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:02:17,173 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 85 transitions [2019-12-27 15:02:21,472 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36910 states. [2019-12-27 15:02:21,472 INFO L276 IsEmpty]: Start isEmpty. Operand 36910 states. [2019-12-27 15:02:21,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-27 15:02:21,473 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:02:21,473 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:02:21,473 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 15:02:21,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:02:21,474 INFO L82 PathProgramCache]: Analyzing trace with hash 458727436, now seen corresponding path program 1 times [2019-12-27 15:02:21,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:02:21,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814943273] [2019-12-27 15:02:21,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:02:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:02:21,538 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 15:02:21,538 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814943273] [2019-12-27 15:02:21,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:02:21,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 15:02:21,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968706500] [2019-12-27 15:02:21,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 15:02:21,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:02:21,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 15:02:21,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:02:21,540 INFO L87 Difference]: Start difference. First operand 36910 states. Second operand 6 states. [2019-12-27 15:02:22,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:02:22,210 INFO L93 Difference]: Finished difference Result 48046 states and 195962 transitions. [2019-12-27 15:02:22,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 15:02:22,211 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-27 15:02:22,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:02:22,409 INFO L225 Difference]: With dead ends: 48046 [2019-12-27 15:02:22,410 INFO L226 Difference]: Without dead ends: 34886 [2019-12-27 15:02:22,410 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-27 15:02:22,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34886 states. [2019-12-27 15:02:24,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34886 to 32146. [2019-12-27 15:02:24,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32146 states. [2019-12-27 15:02:24,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32146 states to 32146 states and 131030 transitions. [2019-12-27 15:02:24,754 INFO L78 Accepts]: Start accepts. Automaton has 32146 states and 131030 transitions. Word has length 25 [2019-12-27 15:02:24,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:02:24,754 INFO L462 AbstractCegarLoop]: Abstraction has 32146 states and 131030 transitions. [2019-12-27 15:02:24,754 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 15:02:24,754 INFO L276 IsEmpty]: Start isEmpty. Operand 32146 states and 131030 transitions. [2019-12-27 15:02:24,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 15:02:24,756 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:02:24,756 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:02:24,756 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 15:02:24,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:02:24,757 INFO L82 PathProgramCache]: Analyzing trace with hash -811555619, now seen corresponding path program 1 times [2019-12-27 15:02:24,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:02:24,757 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326381925] [2019-12-27 15:02:24,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:02:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:02:24,850 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 15:02:24,851 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326381925] [2019-12-27 15:02:24,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:02:24,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 15:02:24,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802439745] [2019-12-27 15:02:24,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 15:02:24,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:02:24,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 15:02:24,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-27 15:02:24,854 INFO L87 Difference]: Start difference. First operand 32146 states and 131030 transitions. Second operand 8 states. [2019-12-27 15:02:25,215 WARN L192 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-12-27 15:02:25,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:02:25,903 INFO L93 Difference]: Finished difference Result 55450 states and 215966 transitions. [2019-12-27 15:02:25,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-27 15:02:25,904 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 15:02:25,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:02:26,095 INFO L225 Difference]: With dead ends: 55450 [2019-12-27 15:02:26,095 INFO L226 Difference]: Without dead ends: 52042 [2019-12-27 15:02:26,096 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-27 15:02:26,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52042 states. [2019-12-27 15:02:29,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52042 to 30648. [2019-12-27 15:02:29,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30648 states. [2019-12-27 15:02:29,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30648 states to 30648 states and 124237 transitions. [2019-12-27 15:02:29,118 INFO L78 Accepts]: Start accepts. Automaton has 30648 states and 124237 transitions. Word has length 34 [2019-12-27 15:02:29,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:02:29,119 INFO L462 AbstractCegarLoop]: Abstraction has 30648 states and 124237 transitions. [2019-12-27 15:02:29,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 15:02:29,119 INFO L276 IsEmpty]: Start isEmpty. Operand 30648 states and 124237 transitions. [2019-12-27 15:02:29,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-27 15:02:29,124 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:02:29,124 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:02:29,125 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 15:02:29,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:02:29,125 INFO L82 PathProgramCache]: Analyzing trace with hash 330402858, now seen corresponding path program 1 times [2019-12-27 15:02:29,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:02:29,126 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325234725] [2019-12-27 15:02:29,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:02:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:02:29,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-27 15:02:29,245 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325234725] [2019-12-27 15:02:29,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:02:29,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 15:02:29,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008526861] [2019-12-27 15:02:29,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 15:02:29,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:02:29,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 15:02:29,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-27 15:02:29,247 INFO L87 Difference]: Start difference. First operand 30648 states and 124237 transitions. Second operand 8 states. [2019-12-27 15:02:30,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:02:30,226 INFO L93 Difference]: Finished difference Result 55918 states and 216366 transitions. [2019-12-27 15:02:30,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-27 15:02:30,226 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2019-12-27 15:02:30,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:02:30,431 INFO L225 Difference]: With dead ends: 55918 [2019-12-27 15:02:30,431 INFO L226 Difference]: Without dead ends: 52446 [2019-12-27 15:02:30,432 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-27 15:02:30,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52446 states. [2019-12-27 15:02:33,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52446 to 28812. [2019-12-27 15:02:33,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28812 states. [2019-12-27 15:02:33,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28812 states to 28812 states and 115895 transitions. [2019-12-27 15:02:33,300 INFO L78 Accepts]: Start accepts. Automaton has 28812 states and 115895 transitions. Word has length 41 [2019-12-27 15:02:33,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:02:33,302 INFO L462 AbstractCegarLoop]: Abstraction has 28812 states and 115895 transitions. [2019-12-27 15:02:33,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 15:02:33,302 INFO L276 IsEmpty]: Start isEmpty. Operand 28812 states and 115895 transitions. [2019-12-27 15:02:33,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-27 15:02:33,313 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:02:33,313 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:02:33,313 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 15:02:33,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:02:33,314 INFO L82 PathProgramCache]: Analyzing trace with hash 169292204, now seen corresponding path program 1 times [2019-12-27 15:02:33,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:02:33,314 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559674319] [2019-12-27 15:02:33,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:02:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:02:33,450 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:02:33,451 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559674319] [2019-12-27 15:02:33,451 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191364747] [2019-12-27 15:02:33,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 15:02:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:02:33,562 INFO L264 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-27 15:02:33,565 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 15:02:33,748 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-27 15:02:33,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:02:33,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 15:02:33,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-12-27 15:02:33,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377826631] [2019-12-27 15:02:33,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-27 15:02:33,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:02:33,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-27 15:02:33,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2019-12-27 15:02:33,799 INFO L87 Difference]: Start difference. First operand 28812 states and 115895 transitions. Second operand 18 states. [2019-12-27 15:02:36,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:02:36,011 INFO L93 Difference]: Finished difference Result 60118 states and 228798 transitions. [2019-12-27 15:02:36,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-12-27 15:02:36,012 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 45 [2019-12-27 15:02:36,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:02:36,249 INFO L225 Difference]: With dead ends: 60118 [2019-12-27 15:02:36,249 INFO L226 Difference]: Without dead ends: 58630 [2019-12-27 15:02:36,250 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=720, Invalid=2586, Unknown=0, NotChecked=0, Total=3306 [2019-12-27 15:02:36,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58630 states. [2019-12-27 15:02:37,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58630 to 28160. [2019-12-27 15:02:37,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28160 states. [2019-12-27 15:02:37,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28160 states to 28160 states and 113373 transitions. [2019-12-27 15:02:37,693 INFO L78 Accepts]: Start accepts. Automaton has 28160 states and 113373 transitions. Word has length 45 [2019-12-27 15:02:37,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:02:37,693 INFO L462 AbstractCegarLoop]: Abstraction has 28160 states and 113373 transitions. [2019-12-27 15:02:37,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-27 15:02:37,694 INFO L276 IsEmpty]: Start isEmpty. Operand 28160 states and 113373 transitions. [2019-12-27 15:02:37,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-27 15:02:37,709 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:02:37,709 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:02:38,185 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 15:02:38,186 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:02:38,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:02:38,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1634131850, now seen corresponding path program 2 times [2019-12-27 15:02:38,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:02:38,187 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899808948] [2019-12-27 15:02:38,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:02:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:02:38,318 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-27 15:02:38,319 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899808948] [2019-12-27 15:02:38,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:02:38,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-12-27 15:02:38,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126381072] [2019-12-27 15:02:38,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-27 15:02:38,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:02:38,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-27 15:02:38,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-27 15:02:38,320 INFO L87 Difference]: Start difference. First operand 28160 states and 113373 transitions. Second operand 10 states. [2019-12-27 15:02:39,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:02:39,721 INFO L93 Difference]: Finished difference Result 59086 states and 224854 transitions. [2019-12-27 15:02:39,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-12-27 15:02:39,725 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2019-12-27 15:02:39,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:02:39,861 INFO L225 Difference]: With dead ends: 59086 [2019-12-27 15:02:39,861 INFO L226 Difference]: Without dead ends: 57454 [2019-12-27 15:02:39,862 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 686 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=487, Invalid=1769, Unknown=0, NotChecked=0, Total=2256 [2019-12-27 15:02:40,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57454 states. [2019-12-27 15:02:41,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57454 to 25152. [2019-12-27 15:02:41,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25152 states. [2019-12-27 15:02:41,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25152 states to 25152 states and 102287 transitions. [2019-12-27 15:02:41,235 INFO L78 Accepts]: Start accepts. Automaton has 25152 states and 102287 transitions. Word has length 45 [2019-12-27 15:02:41,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:02:41,236 INFO L462 AbstractCegarLoop]: Abstraction has 25152 states and 102287 transitions. [2019-12-27 15:02:41,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-27 15:02:41,236 INFO L276 IsEmpty]: Start isEmpty. Operand 25152 states and 102287 transitions. [2019-12-27 15:02:41,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-27 15:02:41,244 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:02:41,244 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:02:41,244 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:02:41,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:02:41,245 INFO L82 PathProgramCache]: Analyzing trace with hash -119237525, now seen corresponding path program 1 times [2019-12-27 15:02:41,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:02:41,245 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729517221] [2019-12-27 15:02:41,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:02:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:02:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:02:41,280 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:02:41,280 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:02:41,280 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:02:41,280 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 15:02:41,296 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,296 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,296 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,297 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,297 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,297 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,297 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,297 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,298 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,299 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,299 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,299 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,299 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,300 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,300 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,300 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,300 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,300 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,301 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,301 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,301 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,301 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,302 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,302 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,302 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,302 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,302 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,302 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,303 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,303 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,303 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,303 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,304 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,304 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,304 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,304 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,304 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,304 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,305 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,305 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,305 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,305 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,305 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,305 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,306 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,306 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,306 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,306 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,306 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,306 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,307 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,307 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,307 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,307 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,307 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,307 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,307 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,308 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,308 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,308 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,308 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,308 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,308 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,309 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,309 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,309 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,309 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,309 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,310 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,310 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,310 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,310 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,310 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,312 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,312 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,312 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,312 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,312 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,313 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,314 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,315 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,315 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,315 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,317 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,317 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,317 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,317 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,317 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,320 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,320 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,320 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,320 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,320 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,321 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,322 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,322 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,323 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,323 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,323 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,323 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,324 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,325 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,325 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,325 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,325 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,325 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,328 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,328 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,328 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,328 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,328 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,329 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:02:41,330 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 15:02:41,330 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:02:41,330 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:02:41,330 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:02:41,330 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 15:02:41,331 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:02:41,331 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:02:41,331 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:02:41,331 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:02:41,334 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 101 transitions [2019-12-27 15:04:30,917 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 221590 states. [2019-12-27 15:04:30,917 INFO L276 IsEmpty]: Start isEmpty. Operand 221590 states. [2019-12-27 15:04:30,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-27 15:04:30,918 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:04:30,918 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:04:30,919 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 15:04:30,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:04:30,919 INFO L82 PathProgramCache]: Analyzing trace with hash 96412256, now seen corresponding path program 1 times [2019-12-27 15:04:30,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:04:30,919 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912659616] [2019-12-27 15:04:30,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:04:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:04:30,972 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 15:04:30,972 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912659616] [2019-12-27 15:04:30,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:04:30,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 15:04:30,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151129081] [2019-12-27 15:04:30,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 15:04:30,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:04:30,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 15:04:30,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:04:30,974 INFO L87 Difference]: Start difference. First operand 221590 states. Second operand 6 states. [2019-12-27 15:04:38,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:04:38,049 INFO L93 Difference]: Finished difference Result 307102 states and 1510066 transitions. [2019-12-27 15:04:38,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 15:04:38,049 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-27 15:04:38,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:04:38,828 INFO L225 Difference]: With dead ends: 307102 [2019-12-27 15:04:38,828 INFO L226 Difference]: Without dead ends: 225462 [2019-12-27 15:04:38,828 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-27 15:04:47,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225462 states. [2019-12-27 15:04:53,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225462 to 206386. [2019-12-27 15:04:53,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206386 states. [2019-12-27 15:05:04,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206386 states to 206386 states and 1016190 transitions. [2019-12-27 15:05:04,039 INFO L78 Accepts]: Start accepts. Automaton has 206386 states and 1016190 transitions. Word has length 25 [2019-12-27 15:05:04,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:05:04,040 INFO L462 AbstractCegarLoop]: Abstraction has 206386 states and 1016190 transitions. [2019-12-27 15:05:04,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 15:05:04,040 INFO L276 IsEmpty]: Start isEmpty. Operand 206386 states and 1016190 transitions. [2019-12-27 15:05:04,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 15:05:04,042 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:05:04,042 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:05:04,042 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 15:05:04,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:05:04,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1447088652, now seen corresponding path program 1 times [2019-12-27 15:05:04,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:05:04,043 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718075405] [2019-12-27 15:05:04,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:05:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:05:04,152 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 15:05:04,153 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718075405] [2019-12-27 15:05:04,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:05:04,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 15:05:04,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687238146] [2019-12-27 15:05:04,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 15:05:04,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:05:04,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 15:05:04,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-27 15:05:04,154 INFO L87 Difference]: Start difference. First operand 206386 states and 1016190 transitions. Second operand 8 states. [2019-12-27 15:05:15,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:05:15,243 INFO L93 Difference]: Finished difference Result 395234 states and 1867854 transitions. [2019-12-27 15:05:15,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-27 15:05:15,243 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 15:05:15,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:05:16,438 INFO L225 Difference]: With dead ends: 395234 [2019-12-27 15:05:16,438 INFO L226 Difference]: Without dead ends: 373906 [2019-12-27 15:05:16,439 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-27 15:05:21,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373906 states. [2019-12-27 15:05:36,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373906 to 209024. [2019-12-27 15:05:36,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209024 states. [2019-12-27 15:05:38,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209024 states to 209024 states and 1021861 transitions. [2019-12-27 15:05:38,885 INFO L78 Accepts]: Start accepts. Automaton has 209024 states and 1021861 transitions. Word has length 34 [2019-12-27 15:05:38,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:05:38,885 INFO L462 AbstractCegarLoop]: Abstraction has 209024 states and 1021861 transitions. [2019-12-27 15:05:38,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 15:05:38,885 INFO L276 IsEmpty]: Start isEmpty. Operand 209024 states and 1021861 transitions. [2019-12-27 15:05:38,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-27 15:05:38,889 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:05:38,889 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:05:38,889 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 15:05:38,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:05:38,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1585020680, now seen corresponding path program 1 times [2019-12-27 15:05:38,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:05:38,890 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689027569] [2019-12-27 15:05:38,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:05:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:05:38,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-27 15:05:38,970 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689027569] [2019-12-27 15:05:38,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:05:38,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 15:05:38,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687652616] [2019-12-27 15:05:38,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 15:05:38,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:05:38,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 15:05:38,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-27 15:05:38,972 INFO L87 Difference]: Start difference. First operand 209024 states and 1021861 transitions. Second operand 8 states. Received shutdown request... [2019-12-27 15:05:48,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-27 15:05:48,875 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 15:05:48,880 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 15:05:48,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 03:05:48 BasicIcfg [2019-12-27 15:05:48,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 15:05:48,882 INFO L168 Benchmark]: Toolchain (without parser) took 216475.21 ms. Allocated memory was 137.4 MB in the beginning and 4.9 GB in the end (delta: 4.7 GB). Free memory was 99.7 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.5 GB. Max. memory is 7.1 GB. [2019-12-27 15:05:48,883 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 119.3 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 15:05:48,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.41 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 99.2 MB in the beginning and 160.7 MB in the end (delta: -61.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-12-27 15:05:48,884 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.06 ms. Allocated memory is still 201.3 MB. Free memory was 160.7 MB in the beginning and 158.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 15:05:48,885 INFO L168 Benchmark]: Boogie Preprocessor took 49.35 ms. Allocated memory is still 201.3 MB. Free memory was 158.6 MB in the beginning and 157.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 15:05:48,886 INFO L168 Benchmark]: RCFGBuilder took 500.56 ms. Allocated memory is still 201.3 MB. Free memory was 157.3 MB in the beginning and 137.6 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2019-12-27 15:05:48,887 INFO L168 Benchmark]: TraceAbstraction took 215190.60 ms. Allocated memory was 201.3 MB in the beginning and 4.9 GB in the end (delta: 4.7 GB). Free memory was 137.6 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.5 GB. Max. memory is 7.1 GB. [2019-12-27 15:05:48,891 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 119.3 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 683.41 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 99.2 MB in the beginning and 160.7 MB in the end (delta: -61.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.06 ms. Allocated memory is still 201.3 MB. Free memory was 160.7 MB in the beginning and 158.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.35 ms. Allocated memory is still 201.3 MB. Free memory was 158.6 MB in the beginning and 157.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 500.56 ms. Allocated memory is still 201.3 MB. Free memory was 157.3 MB in the beginning and 137.6 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215190.60 ms. Allocated memory was 201.3 MB in the beginning and 4.9 GB in the end (delta: 4.7 GB). Free memory was 137.6 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 675]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 675). Cancelled while BasicCegarLoop was constructing difference of abstraction (209024states) and FLOYD_HOARE automaton (currently 20 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (170671 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 51 locations, 1 error locations. Result: TIMEOUT, OverallTime: 187.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 30.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 550 SDtfs, 1197 SDslu, 1921 SDs, 0 SdLazy, 611 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221590occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 47.6s AutomataMinimizationTime, 2 MinimizatonAttempts, 183958 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 12524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown