/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 20:57:59,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 20:57:59,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 20:57:59,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 20:57:59,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 20:57:59,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 20:57:59,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 20:57:59,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 20:57:59,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 20:57:59,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 20:57:59,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 20:57:59,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 20:57:59,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 20:57:59,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 20:57:59,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 20:57:59,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 20:57:59,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 20:57:59,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 20:57:59,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 20:57:59,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 20:57:59,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 20:57:59,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 20:57:59,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 20:57:59,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 20:57:59,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-26 20:57:59,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 20:57:59,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 20:57:59,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 20:57:59,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 20:57:59,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 20:57:59,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 20:57:59,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 20:57:59,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 20:57:59,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 20:57:59,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 20:57:59,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 20:57:59,273 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-26 20:57:59,304 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 20:57:59,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 20:57:59,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 20:57:59,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 20:57:59,306 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 20:57:59,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 20:57:59,306 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 20:57:59,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 20:57:59,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 20:57:59,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 20:57:59,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 20:57:59,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 20:57:59,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 20:57:59,307 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 20:57:59,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 20:57:59,308 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 20:57:59,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 20:57:59,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 20:57:59,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 20:57:59,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 20:57:59,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 20:57:59,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 20:57:59,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 20:57:59,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 20:57:59,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 20:57:59,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 20:57:59,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 20:57:59,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 20:57:59,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 20:57:59,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 20:57:59,580 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 20:57:59,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 20:57:59,598 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 20:57:59,600 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 20:57:59,600 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 20:57:59,601 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i [2019-12-26 20:57:59,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9573ca249/5dc69889f9034904b927952fc55a180f/FLAGe3b97a031 [2019-12-26 20:58:00,292 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 20:58:00,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i [2019-12-26 20:58:00,314 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9573ca249/5dc69889f9034904b927952fc55a180f/FLAGe3b97a031 [2019-12-26 20:58:00,534 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9573ca249/5dc69889f9034904b927952fc55a180f [2019-12-26 20:58:00,543 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 20:58:00,545 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 20:58:00,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 20:58:00,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 20:58:00,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 20:58:00,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 08:58:00" (1/1) ... [2019-12-26 20:58:00,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a22c285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:58:00, skipping insertion in model container [2019-12-26 20:58:00,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 08:58:00" (1/1) ... [2019-12-26 20:58:00,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 20:58:00,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 20:58:01,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 20:58:01,068 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 20:58:01,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 20:58:01,246 INFO L208 MainTranslator]: Completed translation [2019-12-26 20:58:01,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:58:01 WrapperNode [2019-12-26 20:58:01,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 20:58:01,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 20:58:01,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 20:58:01,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 20:58:01,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:58:01" (1/1) ... [2019-12-26 20:58:01,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:58:01" (1/1) ... [2019-12-26 20:58:01,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 20:58:01,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 20:58:01,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 20:58:01,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 20:58:01,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:58:01" (1/1) ... [2019-12-26 20:58:01,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:58:01" (1/1) ... [2019-12-26 20:58:01,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:58:01" (1/1) ... [2019-12-26 20:58:01,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:58:01" (1/1) ... [2019-12-26 20:58:01,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:58:01" (1/1) ... [2019-12-26 20:58:01,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:58:01" (1/1) ... [2019-12-26 20:58:01,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:58:01" (1/1) ... [2019-12-26 20:58:01,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 20:58:01,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 20:58:01,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 20:58:01,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 20:58:01,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:58:01" (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 [2019-12-26 20:58:01,392 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-26 20:58:01,392 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-26 20:58:01,392 INFO L130 BoogieDeclarations]: Found specification of procedure thr3 [2019-12-26 20:58:01,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thr3 [2019-12-26 20:58:01,393 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-26 20:58:01,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-26 20:58:01,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 20:58:01,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 20:58:01,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 20:58:01,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 20:58:01,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 20:58:01,396 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 20:58:01,529 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-26 20:58:01,534 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-26 20:58:01,662 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-26 20:58:01,663 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-26 20:58:01,663 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2019-12-26 20:58:01,666 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-12-26 20:58:01,741 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-26 20:58:01,741 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-26 20:58:01,812 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 20:58:01,812 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-26 20:58:01,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 08:58:01 BoogieIcfgContainer [2019-12-26 20:58:01,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 20:58:01,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 20:58:01,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 20:58:01,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 20:58:01,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 08:58:00" (1/3) ... [2019-12-26 20:58:01,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360c930f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 08:58:01, skipping insertion in model container [2019-12-26 20:58:01,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:58:01" (2/3) ... [2019-12-26 20:58:01,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360c930f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 08:58:01, skipping insertion in model container [2019-12-26 20:58:01,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 08:58:01" (3/3) ... [2019-12-26 20:58:01,823 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_pthread5_vs.i [2019-12-26 20:58:01,835 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 20:58:01,835 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 20:58:01,842 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-26 20:58:01,843 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 20:58:01,872 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,872 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,872 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,873 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,873 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,874 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,875 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,875 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,875 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,876 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,876 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,876 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,877 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,877 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,877 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,878 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,878 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,879 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,879 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,879 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,880 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,880 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,880 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,885 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,885 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,885 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,886 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,890 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,890 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,890 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,891 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,891 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,894 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,895 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,895 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,895 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:01,913 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-26 20:58:01,930 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 20:58:01,930 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 20:58:01,930 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 20:58:01,930 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 20:58:01,930 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 20:58:01,931 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 20:58:01,931 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 20:58:01,931 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 20:58:01,944 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 67 transitions [2019-12-26 20:58:01,946 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 67 transitions [2019-12-26 20:58:02,010 INFO L132 PetriNetUnfolder]: 8/73 cut-off events. [2019-12-26 20:58:02,010 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 20:58:02,020 INFO L76 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 73 events. 8/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 126 event pairs. 0/61 useless extension candidates. Maximal degree in co-relation 65. Up to 4 conditions per place. [2019-12-26 20:58:02,025 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 67 transitions [2019-12-26 20:58:02,052 INFO L132 PetriNetUnfolder]: 8/73 cut-off events. [2019-12-26 20:58:02,052 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 20:58:02,054 INFO L76 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 73 events. 8/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 126 event pairs. 0/61 useless extension candidates. Maximal degree in co-relation 65. Up to 4 conditions per place. [2019-12-26 20:58:02,058 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1656 [2019-12-26 20:58:02,059 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 20:58:03,162 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3412 [2019-12-26 20:58:03,162 INFO L214 etLargeBlockEncoding]: Total number of compositions: 38 [2019-12-26 20:58:03,167 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 34 transitions [2019-12-26 20:58:03,293 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1782 states. [2019-12-26 20:58:03,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states. [2019-12-26 20:58:03,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-26 20:58:03,310 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:58:03,311 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:58:03,311 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:58:03,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:58:03,318 INFO L82 PathProgramCache]: Analyzing trace with hash -2141528937, now seen corresponding path program 1 times [2019-12-26 20:58:03,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:58:03,327 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710588916] [2019-12-26 20:58:03,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:58:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:58:03,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:58:03,510 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710588916] [2019-12-26 20:58:03,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:58:03,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 20:58:03,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443331145] [2019-12-26 20:58:03,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:58:03,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:58:03,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:58:03,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:58:03,539 INFO L87 Difference]: Start difference. First operand 1782 states. Second operand 3 states. [2019-12-26 20:58:03,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:58:03,664 INFO L93 Difference]: Finished difference Result 1876 states and 6602 transitions. [2019-12-26 20:58:03,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:58:03,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-26 20:58:03,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:58:03,748 INFO L225 Difference]: With dead ends: 1876 [2019-12-26 20:58:03,748 INFO L226 Difference]: Without dead ends: 1876 [2019-12-26 20:58:03,750 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:58:03,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2019-12-26 20:58:03,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1836. [2019-12-26 20:58:03,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1836 states. [2019-12-26 20:58:03,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 6520 transitions. [2019-12-26 20:58:03,989 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 6520 transitions. Word has length 7 [2019-12-26 20:58:03,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:58:03,991 INFO L462 AbstractCegarLoop]: Abstraction has 1836 states and 6520 transitions. [2019-12-26 20:58:03,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:58:03,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 6520 transitions. [2019-12-26 20:58:03,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 20:58:03,997 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:58:03,999 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:58:03,999 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:58:03,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:58:04,000 INFO L82 PathProgramCache]: Analyzing trace with hash -889829768, now seen corresponding path program 1 times [2019-12-26 20:58:04,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:58:04,000 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616236353] [2019-12-26 20:58:04,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:58:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:58:04,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:58:04,094 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616236353] [2019-12-26 20:58:04,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:58:04,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-26 20:58:04,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308664664] [2019-12-26 20:58:04,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-26 20:58:04,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:58:04,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-26 20:58:04,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-26 20:58:04,098 INFO L87 Difference]: Start difference. First operand 1836 states and 6520 transitions. Second operand 6 states. [2019-12-26 20:58:04,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:58:04,340 INFO L93 Difference]: Finished difference Result 1360 states and 4084 transitions. [2019-12-26 20:58:04,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-26 20:58:04,341 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-12-26 20:58:04,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:58:04,355 INFO L225 Difference]: With dead ends: 1360 [2019-12-26 20:58:04,355 INFO L226 Difference]: Without dead ends: 1360 [2019-12-26 20:58:04,357 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-12-26 20:58:04,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2019-12-26 20:58:04,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 972. [2019-12-26 20:58:04,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 972 states. [2019-12-26 20:58:04,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 2936 transitions. [2019-12-26 20:58:04,398 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 2936 transitions. Word has length 9 [2019-12-26 20:58:04,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:58:04,398 INFO L462 AbstractCegarLoop]: Abstraction has 972 states and 2936 transitions. [2019-12-26 20:58:04,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-26 20:58:04,399 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 2936 transitions. [2019-12-26 20:58:04,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 20:58:04,402 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:58:04,402 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:58:04,402 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:58:04,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:58:04,403 INFO L82 PathProgramCache]: Analyzing trace with hash -829872627, now seen corresponding path program 1 times [2019-12-26 20:58:04,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:58:04,404 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778915997] [2019-12-26 20:58:04,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:58:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-26 20:58:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-26 20:58:04,524 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-26 20:58:04,524 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-26 20:58:04,525 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-26 20:58:04,525 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-26 20:58:04,542 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,543 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,543 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,543 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,543 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,544 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,546 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,546 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,546 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,553 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,554 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,554 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,554 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,554 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,556 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,556 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,557 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,558 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,558 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,558 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,559 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,559 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,559 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,560 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,560 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,561 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,561 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,561 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,562 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,562 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,562 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,562 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,564 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,564 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,564 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,564 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,565 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,565 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,565 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,565 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,565 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,565 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,566 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,566 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,566 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,566 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,567 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,567 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,568 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,568 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,571 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,571 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,572 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,572 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,574 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,574 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,575 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,575 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,575 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,578 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,578 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,579 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,579 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,579 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,581 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,581 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,581 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,585 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,585 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:04,587 INFO L249 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2019-12-26 20:58:04,587 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 20:58:04,588 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 20:58:04,588 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 20:58:04,588 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 20:58:04,588 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 20:58:04,588 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 20:58:04,588 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 20:58:04,588 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 20:58:04,592 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 107 transitions [2019-12-26 20:58:04,593 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 109 places, 107 transitions [2019-12-26 20:58:04,628 INFO L132 PetriNetUnfolder]: 12/103 cut-off events. [2019-12-26 20:58:04,628 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-26 20:58:04,631 INFO L76 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 103 events. 12/103 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 248 event pairs. 0/85 useless extension candidates. Maximal degree in co-relation 114. Up to 6 conditions per place. [2019-12-26 20:58:04,636 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 109 places, 107 transitions [2019-12-26 20:58:04,660 INFO L132 PetriNetUnfolder]: 12/103 cut-off events. [2019-12-26 20:58:04,660 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-26 20:58:04,664 INFO L76 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 103 events. 12/103 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 248 event pairs. 0/85 useless extension candidates. Maximal degree in co-relation 114. Up to 6 conditions per place. [2019-12-26 20:58:04,670 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3610 [2019-12-26 20:58:04,670 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 20:58:05,928 INFO L206 etLargeBlockEncoding]: Checked pairs total: 9279 [2019-12-26 20:58:05,928 INFO L214 etLargeBlockEncoding]: Total number of compositions: 61 [2019-12-26 20:58:05,929 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 57 transitions [2019-12-26 20:58:07,464 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21377 states. [2019-12-26 20:58:07,464 INFO L276 IsEmpty]: Start isEmpty. Operand 21377 states. [2019-12-26 20:58:07,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 20:58:07,465 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:58:07,465 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:58:07,465 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-26 20:58:07,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:58:07,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1120167057, now seen corresponding path program 1 times [2019-12-26 20:58:07,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:58:07,466 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832519448] [2019-12-26 20:58:07,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:58:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:58:07,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:58:07,505 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832519448] [2019-12-26 20:58:07,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:58:07,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 20:58:07,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966950540] [2019-12-26 20:58:07,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:58:07,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:58:07,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:58:07,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:58:07,508 INFO L87 Difference]: Start difference. First operand 21377 states. Second operand 3 states. [2019-12-26 20:58:08,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:58:08,008 INFO L93 Difference]: Finished difference Result 25109 states and 114950 transitions. [2019-12-26 20:58:08,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:58:08,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-26 20:58:08,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:58:09,145 INFO L225 Difference]: With dead ends: 25109 [2019-12-26 20:58:09,146 INFO L226 Difference]: Without dead ends: 25109 [2019-12-26 20:58:09,146 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:58:09,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25109 states. [2019-12-26 20:58:10,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25109 to 23864. [2019-12-26 20:58:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23864 states. [2019-12-26 20:58:10,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23864 states to 23864 states and 110799 transitions. [2019-12-26 20:58:10,462 INFO L78 Accepts]: Start accepts. Automaton has 23864 states and 110799 transitions. Word has length 8 [2019-12-26 20:58:10,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:58:10,462 INFO L462 AbstractCegarLoop]: Abstraction has 23864 states and 110799 transitions. [2019-12-26 20:58:10,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:58:10,463 INFO L276 IsEmpty]: Start isEmpty. Operand 23864 states and 110799 transitions. [2019-12-26 20:58:10,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 20:58:10,464 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:58:10,464 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:58:10,464 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-26 20:58:10,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:58:10,464 INFO L82 PathProgramCache]: Analyzing trace with hash 940328720, now seen corresponding path program 1 times [2019-12-26 20:58:10,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:58:10,465 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436140582] [2019-12-26 20:58:10,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:58:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:58:10,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:58:10,542 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436140582] [2019-12-26 20:58:10,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:58:10,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-26 20:58:10,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26531237] [2019-12-26 20:58:10,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-26 20:58:10,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:58:10,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-26 20:58:10,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-26 20:58:10,545 INFO L87 Difference]: Start difference. First operand 23864 states and 110799 transitions. Second operand 6 states. [2019-12-26 20:58:11,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:58:11,946 INFO L93 Difference]: Finished difference Result 25233 states and 98049 transitions. [2019-12-26 20:58:11,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-26 20:58:11,947 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-26 20:58:11,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:58:12,138 INFO L225 Difference]: With dead ends: 25233 [2019-12-26 20:58:12,138 INFO L226 Difference]: Without dead ends: 25233 [2019-12-26 20:58:12,139 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-12-26 20:58:12,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25233 states. [2019-12-26 20:58:12,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25233 to 17071. [2019-12-26 20:58:12,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17071 states. [2019-12-26 20:58:12,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17071 states to 17071 states and 68824 transitions. [2019-12-26 20:58:12,982 INFO L78 Accepts]: Start accepts. Automaton has 17071 states and 68824 transitions. Word has length 10 [2019-12-26 20:58:12,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:58:12,982 INFO L462 AbstractCegarLoop]: Abstraction has 17071 states and 68824 transitions. [2019-12-26 20:58:12,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-26 20:58:12,982 INFO L276 IsEmpty]: Start isEmpty. Operand 17071 states and 68824 transitions. [2019-12-26 20:58:12,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 20:58:12,984 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:58:12,984 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:58:12,984 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-26 20:58:12,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:58:12,985 INFO L82 PathProgramCache]: Analyzing trace with hash -913122673, now seen corresponding path program 1 times [2019-12-26 20:58:12,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:58:12,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441233007] [2019-12-26 20:58:12,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:58:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:58:13,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:58:13,043 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441233007] [2019-12-26 20:58:13,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:58:13,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 20:58:13,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135511349] [2019-12-26 20:58:13,045 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 20:58:13,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:58:13,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 20:58:13,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 20:58:13,045 INFO L87 Difference]: Start difference. First operand 17071 states and 68824 transitions. Second operand 4 states. [2019-12-26 20:58:13,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:58:13,244 INFO L93 Difference]: Finished difference Result 22183 states and 86750 transitions. [2019-12-26 20:58:13,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-26 20:58:13,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 20:58:13,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:58:13,359 INFO L225 Difference]: With dead ends: 22183 [2019-12-26 20:58:13,360 INFO L226 Difference]: Without dead ends: 22183 [2019-12-26 20:58:13,360 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-26 20:58:13,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22183 states. [2019-12-26 20:58:14,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22183 to 16391. [2019-12-26 20:58:14,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16391 states. [2019-12-26 20:58:14,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16391 states to 16391 states and 65274 transitions. [2019-12-26 20:58:14,167 INFO L78 Accepts]: Start accepts. Automaton has 16391 states and 65274 transitions. Word has length 11 [2019-12-26 20:58:14,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:58:14,168 INFO L462 AbstractCegarLoop]: Abstraction has 16391 states and 65274 transitions. [2019-12-26 20:58:14,168 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 20:58:14,168 INFO L276 IsEmpty]: Start isEmpty. Operand 16391 states and 65274 transitions. [2019-12-26 20:58:14,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-26 20:58:14,169 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:58:14,169 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:58:14,170 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-26 20:58:14,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:58:14,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1290615274, now seen corresponding path program 1 times [2019-12-26 20:58:14,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:58:14,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210137640] [2019-12-26 20:58:14,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:58:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:58:14,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:58:14,243 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210137640] [2019-12-26 20:58:14,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:58:14,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 20:58:14,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351080923] [2019-12-26 20:58:14,244 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:58:14,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:58:14,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:58:14,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:58:14,245 INFO L87 Difference]: Start difference. First operand 16391 states and 65274 transitions. Second operand 3 states. [2019-12-26 20:58:14,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:58:14,363 INFO L93 Difference]: Finished difference Result 17150 states and 63474 transitions. [2019-12-26 20:58:14,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:58:14,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-26 20:58:14,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:58:14,418 INFO L225 Difference]: With dead ends: 17150 [2019-12-26 20:58:14,418 INFO L226 Difference]: Without dead ends: 17150 [2019-12-26 20:58:14,419 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:58:14,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17150 states. [2019-12-26 20:58:14,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17150 to 15012. [2019-12-26 20:58:14,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15012 states. [2019-12-26 20:58:15,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15012 states to 15012 states and 56662 transitions. [2019-12-26 20:58:15,981 INFO L78 Accepts]: Start accepts. Automaton has 15012 states and 56662 transitions. Word has length 12 [2019-12-26 20:58:15,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:58:15,982 INFO L462 AbstractCegarLoop]: Abstraction has 15012 states and 56662 transitions. [2019-12-26 20:58:15,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:58:15,982 INFO L276 IsEmpty]: Start isEmpty. Operand 15012 states and 56662 transitions. [2019-12-26 20:58:15,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-26 20:58:15,984 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:58:15,984 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:58:15,984 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-26 20:58:15,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:58:15,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1120898264, now seen corresponding path program 1 times [2019-12-26 20:58:15,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:58:15,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830334932] [2019-12-26 20:58:15,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:58:15,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-26 20:58:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-26 20:58:16,018 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-26 20:58:16,019 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-26 20:58:16,019 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-26 20:58:16,019 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-26 20:58:16,035 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,035 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,035 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,035 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,036 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,036 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,036 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,036 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,036 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,037 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,037 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,037 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,037 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,037 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,038 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,038 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,038 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,038 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,038 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,039 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,039 WARN L315 ript$VariableManager]: TermVariabe thr3Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,039 WARN L315 ript$VariableManager]: TermVariabe thr3Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,039 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,039 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,039 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,040 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,040 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,040 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,040 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,040 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,041 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,041 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,041 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,041 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,041 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,041 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,042 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,042 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,042 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,042 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,042 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,043 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,043 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,043 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,043 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,043 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,043 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,044 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,044 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,044 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,044 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,044 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,045 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,045 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,045 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,045 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,045 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,046 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,046 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,046 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,046 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,046 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,047 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,047 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,047 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,047 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,047 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,047 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,048 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,048 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,048 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,048 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,048 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,050 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,050 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,050 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,050 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,052 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,052 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,052 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,052 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,054 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,054 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,054 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,054 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,054 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,055 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,056 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,056 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,056 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,056 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,057 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,057 WARN L315 ript$VariableManager]: TermVariabe thr3Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,057 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,058 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,058 WARN L315 ript$VariableManager]: TermVariabe thr3Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,059 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,059 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,059 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,059 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,061 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,062 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,062 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,062 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,064 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,064 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,064 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,064 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:58:16,066 INFO L249 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2019-12-26 20:58:16,066 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 20:58:16,066 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 20:58:16,067 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 20:58:16,067 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 20:58:16,067 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 20:58:16,067 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 20:58:16,067 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 20:58:16,067 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 20:58:16,071 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 147 transitions [2019-12-26 20:58:16,071 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 149 places, 147 transitions [2019-12-26 20:58:16,119 INFO L132 PetriNetUnfolder]: 16/133 cut-off events. [2019-12-26 20:58:16,119 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-26 20:58:16,125 INFO L76 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 133 events. 16/133 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 372 event pairs. 0/109 useless extension candidates. Maximal degree in co-relation 149. Up to 8 conditions per place. [2019-12-26 20:58:16,138 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 149 places, 147 transitions [2019-12-26 20:58:16,168 INFO L132 PetriNetUnfolder]: 16/133 cut-off events. [2019-12-26 20:58:16,168 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-26 20:58:16,172 INFO L76 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 133 events. 16/133 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 372 event pairs. 0/109 useless extension candidates. Maximal degree in co-relation 149. Up to 8 conditions per place. [2019-12-26 20:58:16,182 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 6404 [2019-12-26 20:58:16,182 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 20:58:18,035 INFO L206 etLargeBlockEncoding]: Checked pairs total: 18690 [2019-12-26 20:58:18,035 INFO L214 etLargeBlockEncoding]: Total number of compositions: 88 [2019-12-26 20:58:18,035 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 79 transitions [2019-12-26 21:00:01,351 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 235217 states. [2019-12-26 21:00:01,351 INFO L276 IsEmpty]: Start isEmpty. Operand 235217 states. [2019-12-26 21:00:01,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 21:00:01,352 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 21:00:01,352 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 21:00:01,352 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 21:00:01,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 21:00:01,353 INFO L82 PathProgramCache]: Analyzing trace with hash -331776036, now seen corresponding path program 1 times [2019-12-26 21:00:01,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 21:00:01,353 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087894519] [2019-12-26 21:00:01,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 21:00:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 21:00:01,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 21:00:01,387 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087894519] [2019-12-26 21:00:01,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 21:00:01,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 21:00:01,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090343865] [2019-12-26 21:00:01,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 21:00:01,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 21:00:01,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 21:00:01,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 21:00:01,388 INFO L87 Difference]: Start difference. First operand 235217 states. Second operand 3 states. [2019-12-26 21:00:09,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 21:00:09,677 INFO L93 Difference]: Finished difference Result 287309 states and 1623650 transitions. [2019-12-26 21:00:09,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 21:00:09,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-26 21:00:09,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 21:00:12,704 INFO L225 Difference]: With dead ends: 287309 [2019-12-26 21:00:12,704 INFO L226 Difference]: Without dead ends: 287309 [2019-12-26 21:00:12,704 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 21:00:22,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287309 states. [2019-12-26 21:00:40,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287309 to 268844. [2019-12-26 21:00:40,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268844 states. [2019-12-26 21:00:53,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268844 states to 268844 states and 1541188 transitions. [2019-12-26 21:00:53,487 INFO L78 Accepts]: Start accepts. Automaton has 268844 states and 1541188 transitions. Word has length 8 [2019-12-26 21:00:53,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 21:00:53,487 INFO L462 AbstractCegarLoop]: Abstraction has 268844 states and 1541188 transitions. [2019-12-26 21:00:53,487 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 21:00:53,487 INFO L276 IsEmpty]: Start isEmpty. Operand 268844 states and 1541188 transitions. [2019-12-26 21:00:53,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 21:00:53,488 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 21:00:53,488 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 21:00:53,488 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 21:00:53,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 21:00:53,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1430254173, now seen corresponding path program 1 times [2019-12-26 21:00:53,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 21:00:53,489 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146778175] [2019-12-26 21:00:53,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 21:00:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 21:00:53,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 21:00:53,533 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146778175] [2019-12-26 21:00:53,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 21:00:53,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-26 21:00:53,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82072945] [2019-12-26 21:00:53,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-26 21:00:53,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 21:00:53,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-26 21:00:53,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-26 21:00:53,535 INFO L87 Difference]: Start difference. First operand 268844 states and 1541188 transitions. Second operand 6 states. [2019-12-26 21:01:07,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 21:01:07,570 INFO L93 Difference]: Finished difference Result 333665 states and 1574075 transitions. [2019-12-26 21:01:07,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-26 21:01:07,570 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-26 21:01:07,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 21:01:08,799 INFO L225 Difference]: With dead ends: 333665 [2019-12-26 21:01:08,800 INFO L226 Difference]: Without dead ends: 333665 [2019-12-26 21:01:08,800 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-12-26 21:01:10,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333665 states. [2019-12-26 21:01:26,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333665 to 219901. [2019-12-26 21:01:26,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219901 states. [2019-12-26 21:01:28,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219901 states to 219901 states and 1052549 transitions. [2019-12-26 21:01:28,270 INFO L78 Accepts]: Start accepts. Automaton has 219901 states and 1052549 transitions. Word has length 10 [2019-12-26 21:01:28,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 21:01:28,270 INFO L462 AbstractCegarLoop]: Abstraction has 219901 states and 1052549 transitions. [2019-12-26 21:01:28,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-26 21:01:28,270 INFO L276 IsEmpty]: Start isEmpty. Operand 219901 states and 1052549 transitions. [2019-12-26 21:01:28,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-26 21:01:28,271 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 21:01:28,271 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 21:01:28,271 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 21:01:28,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 21:01:28,272 INFO L82 PathProgramCache]: Analyzing trace with hash -133803733, now seen corresponding path program 1 times [2019-12-26 21:01:28,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 21:01:28,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848217935] [2019-12-26 21:01:28,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 21:01:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 21:01:28,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 21:01:28,310 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848217935] [2019-12-26 21:01:28,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 21:01:28,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 21:01:28,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627782593] [2019-12-26 21:01:28,311 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 21:01:28,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 21:01:28,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 21:01:28,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 21:01:28,311 INFO L87 Difference]: Start difference. First operand 219901 states and 1052549 transitions. Second operand 3 states. Received shutdown request... [2019-12-26 21:01:37,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 21:01:37,173 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-26 21:01:37,177 WARN L227 ceAbstractionStarter]: Timeout [2019-12-26 21:01:37,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 09:01:37 BasicIcfg [2019-12-26 21:01:37,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 21:01:37,180 INFO L168 Benchmark]: Toolchain (without parser) took 216634.38 ms. Allocated memory was 144.7 MB in the beginning and 4.9 GB in the end (delta: 4.7 GB). Free memory was 101.0 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.3 GB. Max. memory is 7.1 GB. [2019-12-26 21:01:37,180 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-26 21:01:37,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.62 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 100.6 MB in the beginning and 160.5 MB in the end (delta: -59.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-12-26 21:01:37,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.28 ms. Allocated memory is still 201.9 MB. Free memory was 160.5 MB in the beginning and 158.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-26 21:01:37,183 INFO L168 Benchmark]: Boogie Preprocessor took 31.60 ms. Allocated memory is still 201.9 MB. Free memory was 158.5 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-26 21:01:37,184 INFO L168 Benchmark]: RCFGBuilder took 484.67 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 135.2 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-12-26 21:01:37,185 INFO L168 Benchmark]: TraceAbstraction took 215362.16 ms. Allocated memory was 201.9 MB in the beginning and 4.9 GB in the end (delta: 4.7 GB). Free memory was 135.2 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.3 GB. Max. memory is 7.1 GB. [2019-12-26 21:01:37,189 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 700.62 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 100.6 MB in the beginning and 160.5 MB in the end (delta: -59.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.28 ms. Allocated memory is still 201.9 MB. Free memory was 160.5 MB in the beginning and 158.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.60 ms. Allocated memory is still 201.9 MB. Free memory was 158.5 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 484.67 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 135.2 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215362.16 ms. Allocated memory was 201.9 MB in the beginning and 4.9 GB in the end (delta: 4.7 GB). Free memory was 135.2 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.2s, 69 ProgramPointsBefore, 36 ProgramPointsAfterwards, 67 TransitionsBefore, 34 TransitionsAfterwards, 1656 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 4 ChoiceCompositions, 745 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 3412 CheckedPairsTotal, 38 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 109 ProgramPointsBefore, 58 ProgramPointsAfterwards, 107 TransitionsBefore, 57 TransitionsAfterwards, 3610 CoEnabledTransitionPairs, 5 FixpointIterations, 22 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 7 ConcurrentYvCompositions, 6 ChoiceCompositions, 1826 VarBasedMoverChecksPositive, 103 VarBasedMoverChecksNegative, 59 SemBasedMoverChecksPositive, 76 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 9279 CheckedPairsTotal, 61 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 149 ProgramPointsBefore, 78 ProgramPointsAfterwards, 147 TransitionsBefore, 79 TransitionsAfterwards, 6404 CoEnabledTransitionPairs, 5 FixpointIterations, 33 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 10 ConcurrentYvCompositions, 7 ChoiceCompositions, 3160 VarBasedMoverChecksPositive, 209 VarBasedMoverChecksNegative, 175 SemBasedMoverChecksPositive, 86 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 0 MoverChecksTotal, 18690 CheckedPairsTotal, 88 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 709]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 709). Cancelled while BasicCegarLoop was constructing difference of abstraction (219901states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (127877 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 702]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 702). Cancelled while BasicCegarLoop was constructing difference of abstraction (219901states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (127877 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 60 locations, 2 error locations. Result: TIMEOUT, OverallTime: 201.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 35.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 202 SDtfs, 310 SDslu, 263 SDs, 0 SdLazy, 191 SolverSat, 134 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=268844occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 60.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 132229 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 947 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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